Karteikarten

Astronomy

Caitlin Yao Physics IGCSE Englisch 5 Karten

Karten in diesem Stapel (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