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Description
Flashcards by Caitlin Yao, updated more than 1 year ago
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Created by Caitlin Yao
about 6 years ago
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| Question | Answer |
| The size of gravitational force depends on... | 1. The masses of the two objects 2. The distance between the masses |
| What are asteroids? | Minor planets or rocks that orbit the sun Vary greatly in size Possibly the rocky remains of a plant that broke apart/failed to form. |
| What is gravitational field strength? | The strength of gravity on a planet/moon. On Earth: approximately 10N/kg On moon: 1.6N/kg |
| What are moons? | Natural objects that orbit around a planet. Non-luminous objects Takes 29.5 days for the Moon to orbit around the Earth Some planets have 1 moon and some more than 1, some has none. |
| What are comets? | They orbit the Sun They are made of dust and ice Have elongated orbits |
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