Flashcards
Astronomy
Flashcards do conjunto (5)
- 1The size of gravitational force depends on...1. The masses of the two objects
2. The distance between the masses - 2What 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. - 3What is gravitational field strength?The strength of gravity on a planet/moon.
On Earth: approximately 10N/kg
On moon: 1.6N/kg - 4What 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. - 5What are comets?They orbit the Sun
They are made of dust and ice
Have elongated orbits
Informações
- Descrição
- Some definitions and details of astronomy.
- Criado por
- Caitlin Yao · mar 2018
- Atualizado
- 2 mar 2018
- Visualizações
- 7
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