Which of the following fuels would be used for a central heating system? [7i-1] Which of the following fuels would be used for a barbecue? [7i-2] Which of the following fuels would be used for a vintage steamroller (traction engine)? [7i-3] Which of the following fuels would be used for a camping stove? [7i-4] Which is a fossil fuel source of energy? [7i-5] Which is a fossil fuel source of energy? [7i-6] Which is a fossil fuel source of energy? [7i-7]
Which of these is a desirable property of a fuel for burning? [7i-29]Which of these is a desirable property of a fuel for burning? [7i-30]Which of these is a desirable property of a fuel for burning? [7i-31]Which of these is a desirable property of a fuel for burning? [7i-32]
The diagram shows a simple calorimeter system for measuring the heat given out by a liquid fuel burner. The experiment data for four fuels A,B, C and D is given below. 100 ml (100g) of water was used in the calorimeter to 'collect' the heat given out. The mass of fuel burned and the temperature rise of the water are given.The diagram shows a simple calorimeter system for measuring the heat given out by a liquid fuel burner. The experiment data for four fuels A,B, C and D is given below. 100 ml (100g) of water was used in the calorimeter to 'collect' the heat given out. The mass of fuel burned and the temperature rise of the water are given.The diagram shows a simple calorimeter system for measuring the heat given out by a liquid fuel burner. The experiment data for four fuels A,B, C and D is given below. 100 ml (100g) of water was used in the calorimeter to 'collect' the heat given out. The mass of fuel burned and the temperature rise of the water are given.The diagram shows a simple calorimeter system for measuring the heat given out by a liquid fuel burner. The experiment data for four fuels A,B, C and D is given below. 100 ml (100g) of water was used in the calorimeter to 'collect' the heat given out. The mass of fuel burned and the temperature rise of the water are given.
Which description matches a solar cell? [7i-69]Which description matches hydroelectric power? [7i-70]Which description matches wind power? [7i-71]Which description matches tidal power? [7i-72]
Which description matches wave power? [7i-73]Which description matches geothermal power? [7i-74]Which description matches solar panel? [7i-75]Which description matches biomass? [7i-76]
The energy from __(1)__ is absorbed by green plant __(2)__. In a process called __(3)__, this energy is used to make energy rich __(4)__ like starch and __(5)__ fuels like wood.The energy from __(1)__ is absorbed by green plant __(2)__. In a process called __(3)__, this energy is used to make energy rich __(4)__ like starch and __(5)__ fuels like wood.The energy from __(1)__ is absorbed by green plant __(2)__. In a process called __(3)__, this energy is used to make energy rich __(4)__ like starch and __(5)__ fuels like wood.The energy from __(1)__ is absorbed by green plant __(2)__. In a process called __(3)__, this energy is used to make energy rich __(4)__ like starch and __(5)__ fuels like wood.The energy from __(1)__ is absorbed by green plant __(2)__. In a process called __(3)__, this energy is used to make energy rich __(4)__ like starch and __(5)__ fuels like wood.
The __(1)__ of plants and animals get buried under mud or sand. Deep underground they are then subjected to a warmer __(2)__ and higher __(3)__. After decaying, without the presence of oxygen, plant material is changed into __(4)__ and animal material into __(5)__ or gas. These are called __(6)__ fuels and take millions of years to form. The __(1)__ of plants and animals get buried under mud or sand. Deep underground they are then subjected to a warmer __(2)__ and higher __(3)__. After decaying, without the presence of oxygen, plant material is changed into __(4)__ and animal material into __(5)__ or gas. These are called __(6)__ fuels and take millions of years to form. The __(1)__ of plants and animals get buried under mud or sand. Deep underground they are then subjected to a warmer __(2)__ and higher __(3)__. After decaying, without the presence of oxygen, plant material is changed into __(4)__ and animal material into __(5)__ or gas. These are called __(6)__ fuels and take millions of years to form. The __(1)__ of plants and animals get buried under mud or sand. Deep underground they are then subjected to a warmer __(2)__ and higher __(3)__. After decaying, without the presence of oxygen, plant material is changed into __(4)__ and animal material into __(5)__ or gas. These are called __(6)__ fuels and take millions of years to form. The __(1)__ of plants and animals get buried under mud or sand. Deep underground they are then subjected to a warmer __(2)__ and higher __(3)__. After decaying, without the presence of oxygen, plant material is changed into __(4)__ and animal material into __(5)__ or gas. These are called __(6)__ fuels and take millions of years to form. The __(1)__ of plants and animals get buried under mud or sand. Deep underground they are then subjected to a warmer __(2)__ and higher __(3)__. After decaying, without the presence of oxygen, plant material is changed into __(4)__ and animal material into __(5)__ or gas. These are called __(6)__ fuels and take millions of years to form.
Fossil __(1)__ are burned to release __(2)__ energy which is used to turn water into __(3)__. The __(3)__ drives a set of __(4)__ blades which rotate a __(5)__ to make __(6)__.Fossil __(1)__ are burned to release __(2)__ energy which is used to turn water into __(3)__. The __(3)__ drives a set of __(4)__ blades which rotate a __(5)__ to make __(6)__.Fossil __(1)__ are burned to release __(2)__ energy which is used to turn water into __(3)__. The __(3)__ drives a set of __(4)__ blades which rotate a __(5)__ to make __(6)__.Fossil __(1)__ are burned to release __(2)__ energy which is used to turn water into __(3)__. The __(3)__ drives a set of __(4)__ blades which rotate a __(5)__ to make __(6)__.Fossil __(1)__ are burned to release __(2)__ energy which is used to turn water into __(3)__. The __(3)__ drives a set of __(4)__ blades which rotate a __(5)__ to make __(6)__.Fossil __(1)__ are burned to release __(2)__ energy which is used to turn water into __(3)__. The __(3)__ drives a set of __(4)__ blades which rotate a __(5)__ to make __(6)__.
Solar __(1)__ can convert __(2)__ directly into __(3)__ but they are __(4)__. Dark solar panels fitted in a roof, readily __(5)__ radiation to heat water. A curved __(6)__ can also be used to collect and concentrate the heat radiation to cook food on a barbecue!Solar __(1)__ can convert __(2)__ directly into __(3)__ but they are __(4)__. Dark solar panels fitted in a roof, readily __(5)__ radiation to heat water. A curved __(6)__ can also be used to collect and concentrate the heat radiation to cook food on a barbecue!Solar __(1)__ can convert __(2)__ directly into __(3)__ but they are __(4)__. Dark solar panels fitted in a roof, readily __(5)__ radiation to heat water. A curved __(6)__ can also be used to collect and concentrate the heat radiation to cook food on a barbecue!Solar __(1)__ can convert __(2)__ directly into __(3)__ but they are __(4)__. Dark solar panels fitted in a roof, readily __(5)__ radiation to heat water. A curved __(6)__ can also be used to collect and concentrate the heat radiation to cook food on a barbecue!Solar __(1)__ can convert __(2)__ directly into __(3)__ but they are __(4)__. Dark solar panels fitted in a roof, readily __(5)__ radiation to heat water. A curved __(6)__ can also be used to collect and concentrate the heat radiation to cook food on a barbecue!Solar __(1)__ can convert __(2)__ directly into __(3)__ but they are __(4)__. Dark solar panels fitted in a roof, readily __(5)__ radiation to heat water. A curved __(6)__ can also be used to collect and concentrate the heat radiation to cook food on a barbecue!| ENERGY RESOURCE for heat or electricity | Examples of ADVANTAGES | Examples of DISADVANTAGES |
 from the remains of buried and decayed plant remains | relatively cheap, suitable for big power big stations | very polluting from smog and acid rain, non-renewable fossil fuel (115 years left?), carbon dioxide produced |
 from plant growth e.g. oils, sugar, wood or from animal dung | renewable from plant and animal resources, can use waste material, less demand on non-renewable resources | pollution can be high but does recycle carbon dioxide, no good for big power stations |
 , the heat from Sun warms air which rises | renewable, no fuel costs, little pollution, less demand on non-renewable sources, no carbon dioxide produced | unreliable due to variable wind speed, no good large scale |
 mainly infrared radiation | renewable, no fuel costs, little pollution, less demand on non-renewable resources, no carbon dioxide produced | unreliable due to variable sunlight intensity |
Which words might correspond to the missing ? [7i-106]
| ENERGY RESOURCE for heat or electricity | Examples of ADVANTAGES | Examples of DISADVANTAGES |
| from the remains of buried and decayed plant remains | relatively cheap, suitable for big power big stations | very polluting from smog and acid rain, non-renewable fossil fuel (115 years left?), carbon dioxide produced |
| from plant growth e.g. oils, sugar, wood or from animal dung | renewable from plant and animal resources, can use waste material, less demand on non-renewable resources | pollution can be high but does recycle carbon dioxide, no good for big power stations |
| , the heat from Sun warms air which rises | renewable, no fuel costs, little pollution, less demand on non-renewable sources, no carbon dioxide produced | unreliable due to variable wind speed, no good large scale |
| mainly infrared radiation | renewable, no fuel costs, little pollution, less demand on non-renewable resources, no carbon dioxide produced | unreliable due to variable sunlight intensity |
Which words might correspond to the missing ? [7i-107]
| ENERGY RESOURCE for heat or electricity | Examples of ADVANTAGES | Examples of DISADVANTAGES |
| from the remains of buried and decayed plant remains | relatively cheap, suitable for big power big stations | very polluting from smog and acid rain, non-renewable fossil fuel (115 years left?), carbon dioxide produced |
| from plant growth e.g. oils, sugar, wood or from animal dung | renewable from plant and animal resources, can use waste material, less demand on non-renewable resources | pollution can be high but does recycle carbon dioxide, no good for big power stations |
| , the heat from Sun warms air which rises | renewable, no fuel costs, little pollution, less demand on non-renewable sources, no carbon dioxide produced | unreliable due to variable wind speed, no good large scale |
| mainly infrared radiation | renewable, no fuel costs, little pollution, less demand on non-renewable resources, no carbon dioxide produced | unreliable due to variable sunlight intensity |
Which words might correspond to the missing ? [7i-108]
| ENERGY RESOURCE for heat or electricity | Examples of ADVANTAGES | Examples of DISADVANTAGES |
| from the remains of buried and decayed plant remains | relatively cheap, suitable for big power big stations | very polluting from smog and acid rain, non-renewable fossil fuel (115 years left?), carbon dioxide produced |
| from plant growth e.g. oils, sugar, wood or from animal dung | renewable from plant and animal resources, can use waste material, less demand on non-renewable resources | pollution can be high but does recycle carbon dioxide, no good for big power stations |
| , the heat from Sun warms air which rises | renewable, no fuel costs, little pollution, less demand on non-renewable sources, no carbon dioxide produced | unreliable due to variable wind speed, no good large scale |
| mainly infrared radiation | renewable, no fuel costs, little pollution, less demand on non-renewable resources, no carbon dioxide produced | unreliable due to variable sunlight intensity |
Which words might correspond to the missing ? [7i-109]
| ENERGY RESOURCE for heat or electricity | Examples of ADVANTAGES | Examples of DISADVANTAGES |
| NATURAL GAS from the remains of buried and decayed animal remains | reasonably cheap for medium to large scale power stations, quick start up, efficient, convenient to pipe | |
| SUNLIGHT for ELECTRICITY directly using visible light | renewable, no fuel costs, no pollution, less demand on non-renewable resources, good for remote locations | |
| NUCLEAR power from unstable atoms disintegrating | suitable for large scale power stations, no carbon dioxide to add to global warming | |
| HYDROELECTRIC power from rainwater stored behind dam | renewable, no fuel costs, no pollution, no demand on non-renewable resources, fast start up and increase power, no carbon dioxide produced | |
Which words might correspond to the missing ? [7i-110]
| ENERGY RESOURCE for heat or electricity | Examples of ADVANTAGES | Examples of DISADVANTAGES |
| NATURAL GAS from the remains of buried and decayed animal remains | reasonably cheap for medium to large scale power stations, quick start up, efficient, convenient to pipe | |
| SUNLIGHT for ELECTRICITY directly using visible light | renewable, no fuel costs, no pollution, less demand on non-renewable resources, good for remote locations | |
| NUCLEAR power from unstable atoms disintegrating | suitable for large scale power stations, no carbon dioxide to add to global warming | |
| HYDROELECTRIC power from rainwater stored behind dam | renewable, no fuel costs, no pollution, no demand on non-renewable resources, fast start up and increase power, no carbon dioxide produced | |
Which words might correspond to the missing ? [7i-111]
| ENERGY RESOURCE for heat or electricity | Examples of ADVANTAGES | Examples of DISADVANTAGES |
| NATURAL GAS from the remains of buried and decayed animal remains | reasonably cheap for medium to large scale power stations, quick start up, efficient, convenient to pipe | |
| SUNLIGHT for ELECTRICITY directly using visible light | renewable, no fuel costs, no pollution, less demand on non-renewable resources, good for remote locations | |
| NUCLEAR power from unstable atoms disintegrating | suitable for large scale power stations, no carbon dioxide to add to global warming | |
| HYDROELECTRIC power from rainwater stored behind dam | renewable, no fuel costs, no pollution, no demand on non-renewable resources, fast start up and increase power, no carbon dioxide produced | |
Which words might correspond to the missing ? [7i-112]
| ENERGY RESOURCE for heat or electricity | Examples of ADVANTAGES | Examples of DISADVANTAGES |
| NATURAL GAS from the remains of buried and decayed animal remains | reasonably cheap for medium to large scale power stations, quick start up, efficient, convenient to pipe | |
| SUNLIGHT for ELECTRICITY directly using visible light | renewable, no fuel costs, no pollution, less demand on non-renewable resources, good for remote locations | |
| NUCLEAR power from unstable atoms disintegrating | suitable for large scale power stations, no carbon dioxide to add to global warming | |
| HYDROELECTRIC power from rainwater stored behind dam | renewable, no fuel costs, no pollution, no demand on non-renewable resources, fast start up and increase power, no carbon dioxide produced | |
Which words might correspond to the missing ? [7i-113]
| from the up-down movement due to wind | renewable, no fuel costs, no pollution, no demand on non-renewable resources | unreliable, storm damage |
| from the remains of buried and decayed plant remains | lots of it at the moment, relatively cheap, ok for big power big stations, easy to pipe around | polluting from smog and acid rain, non-renewable fossil fuel (80 years left?), adds to global warming |
| from the mass movement of water due to gravity pull of the moon | renewable, no fuel costs, little pollution, less demand on non-renewable resources, no carbon dioxide produced | very costly to build, disruption of wildlife habitat, limited suitable estuary locations, cannot generate power when tides are turning (about 10 useful hours?) |
| from hot rocks underground in active/recent volcanic regions | renewable energy resource, no fuel costs, little pollution, no carbon dioxide | limited suitable locations |
Which words might correspond to the missing ? [7i-114]
| from the up-down movement due to wind | renewable, no fuel costs, no pollution, less demand on non-renewable sources, no carbon dioxide to increase Greenhouse effect | unreliable due to variable wave height, storm damage |
| from the remains of buried and decayed plant remains | lots of it at the moment, relatively cheap, ok for big power big stations, easy to pipe around | polluting from smog and acid rain, non-renewable fossil fuel (80 years left?), produces carbon dioxide adding to global warming |
| from the mass movement of water due to gravity pull of the moon | renewable, no fuel costs, little pollution, less demand on non-renewable resources, no carbon dioxide produced | very costly to build, disruption of wildlife habitat, limited suitable estuary locations, cannot generate power when tides are turning (about 10 useful hours?) |
| from hot rocks underground in active/recent volcanic regions | renewable energy resource, no fuel costs, little pollution, no carbon dioxide | limited suitable locations |
Which words might correspond to the missing ? [7i-115]
| from the up-down movement due to wind | renewable, no fuel costs, no pollution, less demand on non-renewable sources, no carbon dioxide to increase Greenhouse effect | unreliable due to variable wave height, storm damage |
| from the remains of buried and decayed plant remains | lots of it at the moment, relatively cheap, ok for big power big stations, easy to pipe around | polluting from smog and acid rain, non-renewable fossil fuel (80 years left?), produces carbon dioxide adding to global warming |
| from the mass movement of water due to gravity pull of the moon | renewable, no fuel costs, little pollution, less demand on non-renewable resources, no carbon dioxide produced | very costly to build, disruption of wildlife habitat, limited suitable estuary locations, cannot generate power when tides are turning (about 10 useful hours?) |
| from hot rocks underground in active/recent volcanic regions | renewable energy resource, no fuel costs, little pollution, no carbon dioxide | limited suitable locations |
Which words might correspond to the missing ? [7i-116]
| from the up-down movement due to wind | renewable, no fuel costs, no pollution, less demand on non-renewable sources, no carbon dioxide to increase Greenhouse effect | unreliable due to variable wave height, storm damage |
| from the remains of buried and decayed plant remains | lots of it at the moment, relatively cheap, ok for big power big stations, easy to pipe around | polluting from smog and acid rain, non-renewable fossil fuel (80 years left?), produces carbon dioxide adding to global warming |
| from the mass movement of water due to gravity pull of the moon | renewable, no fuel costs, little pollution, less demand on non-renewable resources, no carbon dioxide produced | very costly to build, disruption of wildlife habitat, limited suitable estuary locations, cannot generate power when tides are turning (about 10 useful hours?) |
| from hot rocks underground in active/recent volcanic regions | renewable energy resource, no fuel costs, little pollution, no carbon dioxide | limited suitable locations |
Which words might correspond to the missing ? [7i-117]
From the four circuits shown, 'in which two will the bulbs be the same brightness'? Note that the bulbs are identical and the batteries identical. [7j-13] From the four circuits shown, 'in which will the bulb or bulbs be the dimmest'? Note that the bulbs are identical and the batteries identical. [7j-14] From the four circuits shown, 'in which will the bulb or bulbs be the brightest'? Note that the bulbs are identical and the batteries identical. [7j-15]
From the four circuits shown, in which two 'will the lamps be the same brightness'? Note that the bulbs are identical and the batteries identical. [7j-16] From the four circuits shown, which will have 'the brightest lit lamp or lamps'? Note that the bulbs are identical and the batteries identical. [7j-17] From the four circuits shown, which will have 'the dimmest lit bulb or bulbs'? Note that the bulbs are identical and the batteries identical. [7j-18] 
From the four circuits shown, in which two 'will the lamps be the same brightness'? From the four circuits shown, which will have 'the brightest lit bulb or bulbs'? Note that the bulbs are identical and the batteries identical. [7j-20] From the four circuits shown, which will have 'the dimmest lit bulb or bulbs'? Note that the bulbs are identical and the batteries identical. [7j-21]
Which of the following is TRUE when comparing the two circuits 11 and 12? Note that the bulbs are identical and the batteries identical. [7j-29] Which of the following is TRUE when comparing the two circuits 11 and 12? Note that the bulbs are identical and the batteries identical. [7j-30] Which of the following is TRUE when comparing the two circuits 11 and 12? Note that the bulbs are identical and the batteries identical. [7j-31] Which of the following is TRUE when comparing the two circuits 11 and 12? Note that the bulbs are identical and the batteries identical. [7j-32]Which of the following is TRUE when comparing the two circuits 11 and 12? Note that the bulbs are identical and the batteries identical. [7j-33]Which of the following is TRUE when comparing the two circuits 11 and 12? Note that the bulbs are identical and the batteries identical. [7j-34] Which of the following is TRUE when comparing the two circuits 11 and 12? Note that the bulbs are identical and the batteries identical. [7j-35]Which of the following is TRUE when comparing the two circuits 11 and 12? Note that the bulbs are identical and the batteries identical. [7j-36]
Circuit 18 shows how three lamps and four ammeters are wired together. All the lamps are identical and all four switches are closed. If ammeter a4 reads 12A, what will be the current reading on ammeter a2? [7j-41]Circuit 18 shows how three lamps and four ammeters are wired together. All the lamps are identical and all four switches are closed. If ammeter a1 reads 3A, what will be the current reading on ammeter a4? [7j-42]Circuit 18 shows how three lamps and four ammeters are wired together. The lamps are NOT identical but all four switches are closed. If ammeter a4 reads 8A, a1 reads 3A and a2 reads 2A, what will be the current reading on ammeter a3? [7j-43]Circuit 18 shows how three lamps and four ammeters are wired together. The lamps are NOT identical but all four switches are closed. If ammeter a1 reads 2A, a2 reads 1A and a3 reads 4A, what will be the current reading on ammeter a4? [7j-44]
Circuit 19 shows a switch closed, battery, bulb and a variable resistor wired in a complete series circuit. Which statement about the operation of the circuit is TRUE? [7j-53]Circuit 19 shows a switch closed, battery, bulb and a variable resistor wired in a complete series circuit. Which statement about the operation of the circuit is TRUE? [7j-54]Circuit 19 shows a switch closed, battery, bulb and a variable resistor wired in a complete series circuit. Which statement about the operation of the circuit is TRUE? [7j-55]Circuit 19 shows a switch closed, battery, bulb and a variable resistor wired in a complete series circuit. Which statement about the operation of the circuit is TRUE? [7j-56]
Circuit 20 shows a circuit arrangement for six switches (s) and six bulbs (b). Which bulbs light up if switch s5 is closed? [7j-57]Circuit 20 shows a circuit arrangement for six switches (s) and six bulbs (b). Which bulbs light up if switches s1, s3 and s5 are closed? [7j-58]Circuit 20 shows a circuit arrangement for six switches (s) and six bulbs (b). Which bulbs light up if switches s1, s2 and s5 are closed? [7j-59]Circuit 20 shows a circuit arrangement for six switches (s) and six bulbs (b). Which bulbs light up if switches s1, s2, s4 and s5 are closed? [7j-60]Circuit 20 shows a circuit arrangement for six switches (s) and six bulbs (b). Which bulbs light up if switches s1, s3, s4 and s5 are closed? [7j-61]
Circuit 21 shows the arrangement of six identical bulbs (X) and four ammeters (a1 to a4). To solve the problem you need to realise that each bulb has an identical resistance. The more bulbs there are in series, the greater the resistance to current flow. If a1 reads 3A and a4 reads 5.5A what will ammeter a2 read? [7j-62]Circuit 21 shows the arrangement of six identical bulbs (X) and four ammeters (a1 to a4). To solve the problem you need to realise that each bulb has an identical resistance. The more bulbs there are in series, the greater the resistance to current flow. If a1 reads 6A and a2 reads 3A what will ammeter a4 read? [7j-63]Circuit 21 shows the arrangement of six identical bulbs (X) and four ammeters (a1 to a4). To solve the problem you need to realise that each bulb has an identical resistance. The more bulbs there are in series, the greater the resistance to current flow. If a2 reads 4.5A and a3 reads 3.0A what will ammeter a1 read? [7j-64]
The ratings for four typical domestic appliance fuses are given below. Which is the safest fuse to use for an appliance with a normal operating current of 2A? [7j-65] 
The ratings for four typical domestic appliance fuses are given below. Which is the safest fuse to use for an appliance with a normal operating current of 3A? [7j-66] The ratings for four typical domestic appliance fuses are given below. Which is the safest fuse to use for an appliance with a normal operating current of 6A? [7j-67] The ratings for four typical domestic appliance fuses are given below. Which is the safest fuse to use for an appliance with a normal operating current of 10A? [7j-68] The ratings for four typical domestic appliance fuses are 3A, 5A, 8A and 13A. Which fuse wires will melt if a current of 4A is passed through them? [7j-69] The ratings for four typical domestic appliance fuses are 3A, 5A, 8A and 13A. Which fuse wires will melt if a current of 6A is passed through them? [7j-70] The ratings for four typical domestic appliance fuses are 3A, 5A, 8A and 13A. Which fuse wires will melt if a current of 9A is passed through them? [7j-71] The ratings for four typical domestic appliance fuses are 3A, 5A, 8A and 13A. Which fuse wires will melt if a current of 14A is passed through them? [7j-72] 
The Circuit 22 shows two, two way switches, s1 and s2, connected to a power supply and lamp. Which conditions ensure the lamp is ON in Circuit 22? [7j-73] The Circuit 22 shows two, two way switches, s1 and s2, connected to a power supply and lamp. Which conditions ensure the lamp is OFF in Circuit 22? [7j-74] The Circuit 22 shows two, two way switches, s1 and s2, connected to a power supply and lamp. Which conditions ensure the lamp is OFF in Circuit 22? [7j-75] The Circuit 22 shows two, two way switches, s1 and s2, connected to a power supply and lamp. Which conditions ensure the lamp is ON in Circuit 22? [7j-76] 
The Circuit 23 shows a two way switch s1 and a simple switch s2, connected to a power supply and five lamps (b1 to b5). Which lamps will be ON when only switch s1a is closed (up)? [7j-77] The Circuit 23 shows a two way switch s1 and a simple switch s2, connected to a power supply and five lamps (b1 to b5). Which lamps will be ON when only switch s1b is closed (down)? [7j-78] The Circuit 23 shows a two way switch s1 and a simple switch s2, connected to a power supply and five lamps (b1 to b5). Which lamps will be ON when switches s1a and s2 are closed? [7j-79] The Circuit 23 shows a two way switch s1 and a simple switch s2, connected to a power supply and five lamps (b1 to b5). Which lamps will be ON when switches s1b and s2 are closed? [7j-80] 
Which statement is TRUE about mains electricity in the house? [7j-81]Which statement is TRUE about mains electricity in the house? [7j-82]Which statement is TRUE about mains electricity in the house? [7j-83]Which statement is TRUE about mains electricity in the house? [7j-84]
The five circuits show various arrangements of identical cells and identical batteries. If the ammeter reading in circuit 02 is 0.3A, in which circuit will the ammeter reading be 0.6A? [7j-85] The five circuits show various arrangements of identical cells and identical batteries. If the ammeter reading in circuit 02 is 0.3A, in which circuit will the ammeter reading be 0.15A? [7j-86] The five circuits show various arrangements of identical cells and identical batteries. If the ammeter reading in circuit 02 is 0.3A, in which circuit will the ammeter reading be 0.9A? [7j-87] The five circuits show various arrangements of identical cells and identical batteries. If the ammeter reading in circuit 02 is 0.3A, in which circuit will the ammeter reading be 0.1A? [7j-88]
In circuit 24 two cells, 2 bulbs and a switch are wired in series. An extra wire has been added to the similar circuits 25, 26 and 27. In which circuit will bulbs b1 and b2 light up when the switch s is closed is closed? [7j-89] In circuit 24 two cells, 2 bulbs and a switch are wired in series. An extra wire has been added to the similar circuits 25, 26 and 27. In which circuit will only bulb b2 light up and only if switch s is closed? [7j-90] In circuit 24 two cells, 2 bulbs and a switch are wired in series. An extra wire has been added to the similar circuits 25, 26 and 27. In which circuit will only bulb b2 light up but does not need switch s to be closed? [7j-91] In circuit 24 two cells, 2 bulbs and a switch are wired in series. An extra wire has been added to the similar circuits 25, 26 and 27. In which circuit will only bulb b1 light up when the switch s is closed? [7j-92]If bulb b1 'blows' what happens to the other bulbs? [7j-93]If bulb b2 'blows' what happens to the other bulbs? [7j-94]If bulb b5 'blows' what happens to the other bulbs? [7j-95]
In the circuit 20 shown above, all the bulbs light up when all the switches are closed. What happens to the other bulbs if bulb b2 'blows'? [7j-96]In the circuit 20 shown above, all the bulbs light up when all the switches are closed. What happens to the other bulbs if bulb b3 'blows'? [7j-97]In the circuit 20 shown above, all the bulbs light up when all the switches are closed. What happens to the other bulbs if bulb b4 'blows'? [7j-98]In the circuit 20 shown above, all the bulbs light up when all the switches are closed. What happens to the other bulbs if bulb b5 'blows'? [7j-99]In the circuit 20 shown above, all the bulbs light up when all the switches are closed. What happens to the other bulbs if bulb b6 'blows'? [7j-100]
Which word means an upward force acting on an object in a fluid (gas or liquid)? [7k-13]
Which word means the force of attraction between any two objects? [7k-14] Which word means the force preventing two materials or objects in contact passing each other? [7k-15]Which word means the force of gravity on an object? [7k-16]
The diagram shows the four forces involved and their direction of 'action' as a person is swimming through water. Which of the four forces corresponds to friction ? [7k-17]The diagram shows the four forces involved and their direction of 'action' as a person is swimming through water. Which of the four forces corresponds to gravity ? [7k-18]The diagram shows the four forces involved and their direction of 'action' as a person is swimming through water. Which of the four forces corresponds to the 'driving' force ? [7k-19]The diagram shows the four forces involved and their direction of 'action' as a person is swimming through water. Which of the four forces corresponds to the upthrust ? [7k-20]
Which of the following is a 'force'? [7k-21]Which of the following is a 'force'? [7k-22]Which of the following is a 'force'? [7k-23]Which of the following is a 'force'? [7k-24]
Calculate the block volume if L = 2 cm, B = 3 cm and H = 4 cm. [7k-25]Calculate the block volume if L = 15 cm, B = 2 cm and H = 4 cm. [7k-26]Calculate the block volume if L = 4 cm, B = 2 cm and H = 7 cm. [7k-27]Calculate the block volume if L = 3 cm, B = 6 cm and H = 2 cm. [7k-28]Which of the following is a 'force'? [7k-29]You are given the following masses and volumes for various blocks of materials. The mass of 1 cm3 of water is 1 g. From them choose which one will sink in water? [7k-30]You are given the following masses and volumes for various blocks of materials. The mass of 1 cm3 of water is 1 g. From them choose which one will float on water? [7k-31]You are given the following masses and volumes for various blocks of materials. The mass of 1 cm3 of water is 1 g. From them choose which one will float on water? [7k-32]You are given the following masses and volumes for various blocks of materials. The mass of 1 cm3 of water is 1 g. From them choose which one will sink in water? [7k-33]You are given the following masses and volumes for various blocks of materials. From them choose which one has a density of 0.5 g/cm3? [7k-34]You are given the following masses and volumes for various blocks of materials. From them choose which one has a density of 1.5 g/cm3? [7k-35]You are given the following masses and volumes for various blocks of materials. From them choose which one has a density of 2 g/cm3? [7k-36]
The diagram on the left summarises the forces acting on a cyclist. The one on the right is trying to catch up! Which corresponds to friction and air resistance? [7k-37]The diagram on the left summarises the forces acting on a cyclist. The one on the right is trying to catch up! Which corresponds to the effect of gravity? [7k-38]The diagram on the left summarises the forces acting on a cyclist. The one on the right is trying to catch up! Which corresponds to the pedalling of the cyclist? [7k-39]The diagram on the left summarises the forces acting on a cyclist. The one on the right is trying to catch up! Which corresponds to the force produced by compression? [7k-40]The diagram on the left summarises the forces acting on a cyclist. The one on the right is trying to catch up! Which must be TRUE to get constant speed? [7k-41]The diagram on the left summarises the forces acting on a cyclist. The one on the right is trying to catch up! Which must be TRUE to get the speed reduced? [7k-42]The diagram on the left summarises the forces acting on a cyclist. The one on the right is trying to catch up! Which must be TRUE to get a 'speeding up'? [7k-43]The diagram on the left summarises the forces acting on a cyclist. The one on the right is trying to catch up! Which must be TRUE when the brakes are applied effectively? [7k-44]| Weight added to spring (N) | 2 | 4 | 6 | 8 | 10 |
| Length of spring (cm) | 23 | 27 | 31 | 35 | 39 |
From the data, what is the spring extension per N weight added? [7k-45]
| Weight added to spring (N) | 2 | 4 | 6 | 8 | 10 |
| Length of spring (cm) | 23 | 27 | 31 | 35 | 39 |
From the data, what would be the spring length with a weight of 7N on? [7k-46]
| Weight added to spring (N) | 2 | 4 | 6 | 8 | 10 |
| Length of spring (cm) | 23 | 27 | 31 | 35 | 39 |
From the data, what is the real length of the spring with no weight on? [7k-47]
| Weight added to spring (N) | 2 | 4 | 6 | 8 | 10 |
| Length of spring (cm) | 23 | 27 | 31 | 35 | 39 |
From the data, what would be the spring length with a weight of 15N on? [7k-48]
The diagram shows a sequence of eight moon positions as it orbits the Earth. When viewed from Earth, which moon position corresponds to the new moon phase? [7L-1]The diagram shows a sequence of eight moon positions as it orbits the Earth. When viewed from Earth, which moon position corresponds to the waxing crescent phase? [7L-2]The diagram shows a sequence of eight moon positions as it orbits the Earth. When viewed from Earth, which moon position corresponds to the first quarter phase? [7L-3]The diagram shows a sequence of eight moon positions as it orbits the Earth. When viewed from Earth, which moon position corresponds to the waxing gibbous phase? [7L-4]The diagram shows a sequence of eight moon positions as it orbits the Earth. When viewed from Earth, which moon position corresponds to the full moon phase? [7L-5]The diagram shows a sequence of eight moon positions as it orbits the Earth. When viewed from Earth, which moon position corresponds to the waning gibbous phase? [7L-6]The diagram shows a sequence of eight moon positions as it orbits the Earth. When viewed from Earth, which moon position corresponds to the last quarter phase? [7L-7]The diagram shows a sequence of eight moon positions as it orbits the Earth. When viewed from Earth, which moon position corresponds to the waning crescent phase? [7L-8]
Which matches the time it takes for the Earth to orbit the Sun once? [7L-9]Which matches the time it takes for the Moon to orbit the Earth once? [7L-10]Which matches the time it takes for the Earth to spin round once on its axis? [7L-11]Which matches the length of daylight on the equator? [7L-12]Which matches the time it takes for the Earth to orbit the Sun once? [7L-13]Which matches the approximate time it takes for the Moon to orbit the Earth once? [7L-14]Which matches the time it takes for the Earth to spin round once on its axis? [7L-15]Which matches the length of night-time on the equator? [7L-16]
Which planet is nearest the Sun? [7L-17] Which planet is the 2nd in order from the Sun? [7L-18] Which planet is the 3rd in order from the Sun? [7L-19] Which planet is the 4th in order from the Sun? [7L-20] Which planet is the 5th in order from the Sun? [7L-21] Which planet is the 6th in order from the Sun? [7L-22] Which planet is the 7th in order from the Sun? [7L-23] Which planet is the 8th in order from the Sun? [7L-24] Which planet is the farthest from the Sun? [7L-25]
Which position in the cycle corresponds to the Autumn season in the Northern Hemisphere? [7L-29]Which position in the cycle corresponds to the Winter season in the Northern Hemisphere? [7L-30]Which position in the cycle corresponds to the Spring season in the Northern Hemisphere? [7L-31]Which position in the cycle corresponds to the Summer season in the Northern Hemisphere? [7L-32]Which position in the cycle corresponds to the Spring season in the Southern Hemisphere? [7L-33]Which position in the cycle corresponds to the Summer season in the Southern Hemisphere? [7L-34]Which position in the cycle corresponds to the Autumn season in the Southern Hemisphere? [7L-35]Which position in the cycle corresponds to the Winter season in the Southern Hemisphere? [7L-36]Which explains why a planet has 'day' and 'night'? [7L-42]Which explains why a planet has 'seasons'? [7L-43]Which explains why Mars has 'seasons'? [7L-44]Which explains why Earth has 'day' and 'night'? [7L-45]Which is the path of an object moving around another in space? [7L-46]Which is a rock moving around the Sun between the paths of Mars and Jupiter? [7L-47]Which is a very large spinning object moving around a star? [7L-48]Which is a recognisable pattern of stars? [7L-49]Which is a mass of dust and ice going around the Sun? [7L-50]
Which force keeps a planet moving around the Sun? [7L-51]Which explains why stars seem to move across the sky? [7L-52]Which of the following is TRUE? [7L-53]Which of the following is TRUE? [7L-54]Which of the following is TRUE? [7L-55]Which of the following is TRUE? [7L-56] Which of the following is TRUE? [7L-57] Which of the following is TRUE? [7L-58] Which of the following is TRUE? [7L-59] Which of the following is TRUE? [7L-60]Which pattern is generally TRUE the further a planet is from the Sun? [7L-61]Which pattern is generally TRUE the further a planet is from the Sun? [7L-62]Which pattern is generally TRUE the further a planet is from the Sun? [7L-63]Which pattern is generally TRUE the further a planet is from the Sun? [7L-64]Starting with the Earth at position 2 in the cycle, where will the Earth be in 3 months time? [7L-65]Starting with the Earth at position 2 in the cycle, where will the Earth be in 6 months time? [7L-66]Starting with the Earth at position 2 in the cycle, where will the Earth be in 9 months time? [7L-67]Starting with the Earth at position 2 in the cycle, where will the Earth be in 12 months time? [7L-68]
In which direction does the Sun rise? [7L-69] In which direction does the Sun set? [7L-70] In which direction is the Sun highest in the sky? [7L-71] In which direction does a magnetic compass point? [7L-72]
How long is it likely to take for sunlight reflected off a satellite at night to reach your eyes? [7L-73]How long is it likely to take for sunlight reflected off the moon to reach your eyes? [7L-74]How long is it likely to take for light directly from our Sun to reach your eyes? [7L-75]How long is it likely to take for light from the next nearest star after the Sun to reach your eyes? [7L-76]
At what time is the Sun highest in the sky?Which of the following explains why the Sun seems to move across the sky? [7L-78] From the point of view of plant growth, which is the best direction for a short narrow garden attached to a house to face? [7L-79]
Which object is the Sun? [7L-81] Which object is a comet? [7L-82] Which object could be the Earth? [7L-83] Which object is our Moon? [7L-84] Which object could be Mars? [7L-85] Which object could be an asteroid? [7L-86] Which object is a star? [7L-87]