Orbital Speed

Gravity Decreases as you get further away

• With very large masses like stars and planets, gravity is very big and acts a long way out
• The closer you get to a star or a planet, the stronger the force of attraction
• Because of this stronger force, planets nearer the sun move faster and cover their orbit quicker.
• Moons and artificial satellites are also held in orbit by gravity. The further out from earth they orbit, the slower they move.

There are different…