AP Physics 1 6.6.A Motion of Orbiting Satellites

Practise AP Physics 1 6.6.A by relating orbital radius and speed to kinetic and potential energy, angular momentum, and escape velocity in two-body systems.

Exam points

Calculate satellite kinetic energy from orbital radius using gravity as centripetal force
Use energy and angular-momentum conservation to compare elliptical-orbit states and escape speed

[Maximum number: 1]

Which of the following expressions is equivalent to the magnitude of the escape velocity in terms of the magnitude of the orbital velocity v for a spacecraft?

2 v

4 v

$\sqrt{2} v$

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6.6.A—Describe the motions of a system consisting of two objects interacting only via gravitational forces. AP Physics… question 1