SITEMAP * HOME PAGE * SEARCH * UK KS3 level Science Quizzes for students aged ~13-14

UK GCSE level BiologyChemistryPhysics age ~14-16 * Advanced Level Chemistry age ~16-18

School-college Physics Notes: Astronomy 7. The phases of the Moon

ASTRONOMY: 7. Explaining the phases of the Earth's moon

Doc Brown's Physics exam study revision notes

INDEX physics notes on ASTRONOMY

Astronomy 7.

Explaining the phases of the Earth's moon

Phases of the moon waxing waning as seen from Earth

In sequence as the Moon orbits the Earth in 28 days. The phases in sequence are:

1. new moon,  2. waxing crescent moon,  3.first quarter moon,  4. waxing gibbous moon

5. full moon,  6. waning gibbous moon,  7. third quarter moon,  8. waning crescent moon

A few details about our moon

The gravitational field strength on the moon is much smaller than on Earth because of its much smaller mass.

Gravitational field strengths: Earth 9.8 m/s2 or 9.81 N/kg;  Moon 1.62 m/s2 or 1.62 N/kg (~1/6th of Earth)

The moon does NOT have an atmosphere, its mass, and hence its gravity, is too low to hold on to an atmosphere.

There are no sedimentary rocks on the moon because there is no atmosphere, so there has been no weather to bring about weathering, erosion, transportation, deposition and compression to form sedimentary rocks.

There will be metamorphic rocks on the moon because there is evidence of volcanic activity and even igneous rocks when heated can re-crystallise to form a 'new' metamorphic rock.

INDEX of my physics notes on ASTRONOMY

Keywords, phrases and learning objectives for astronomy

With the help of a diagram be able to explaining the phases of the moon.

Know the moon has a much weaker gravitational field (1/6th of Earth), geologically the rocks are similar to those found on Earth (but no sedimentary rocks) and the moon has no atmosphere.


TOP of page

INDEX for physics notes on ASTRONOMY

INDEX of all notes on waves, radiation, astronomy etc.


email doc brown - comments - query?

BIG website, using the [SEARCH BOX] below, maybe quicker than navigating the many sub-indexes

HOME PAGE of Doc Brown's Science

Basic Science Quizzes for UK KS3 science students aged ~12-14, ~US grades 6-8

BiologyChemistryPhysics for UK GCSE level students aged ~14-16, ~US grades 9-10

Advanced Level Chemistry for pre-university age ~16-18 ~US grades 11-12, K12 Honors

Find your GCSE/IGCSE science course for more help links to all science revision notes

Use your mobile phone in 'landscape' mode?

SITEMAP Website content Dr Phil Brown 2000+. All copyrights reserved on Doc Brown's physics revision notes, images, quizzes, worksheets etc. Copying of website material is NOT permitted. Exam revision summaries and references to GCSE science course specifications are unofficial.

Using SEARCH some initial results may be ad links you can ignore - look for docbrown

INDEX of my physics notes on ASTRONOMY