Physics 12 - Quiz 3


 Satellite 2

A 1.0 x 103 kg satellite is in an orbit at a radial distance of 2 Earth radii. The satellite is then moved a little further away from Earth, to a radial distance of 3 Earth radii. Answer the following questions.

a) What is the magnitude of the gravitational force acting on the satellite at 2Re ? (2 marks)

b) What is the satellite's orbital velocity at 2Re ? (2 marks)

c) What is the satellite's orbital period at 2Re ? (2 marks)

d) What is the gravitational field strength at 2Re ? (2 marks)

e) What is the gravitational potential energy at 2Re ? (2 marks)

f) What is the satellite's kinetic energy at 2Re ? (2 marks)

g) How much work was required by an external agent to move the satellite from Earth's surface to 2Re? (5 marks)

h) How much work was required by an external agent to move the satellite from 2 Re to 3Re? (2 marks) 

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