Lesson 6: Orbital Motion Answers
Which statements accurately describe satellite motion? Check all that apply.Gravity is the only force acting on a satellite.Inertia is the only cause of a satellite’s circular motion.Air resistance prevents satellites from staying in orbit for very long.Circular orbits result from the interaction between gravity and inertia.Gravity provides the centripetal force for satellites.Satellites are in free fall around Earth or other central objects.
The period of a satellite in a circular orbit [___] as the distance from the central object increases.
[___] m/s
7.57 × 10³
[___] s
5.63 × 10³
A 1,160 kg satellite orbits Earth with a tangential speed of 7,446 m/s. If the satellite experiences a centripetal force of 8,955 N, what is the height of the satellite above the surface of Earth? Recall that Earth’s radius is 6.38 × 106 m and Earth’s mass is 5.97 × 1024 kg.
Which is greater, the tangential speed of Mars’s rotation or revolution? [___]
revolution
Which formulas have been correctly rearranged to solve for radius? Check all that apply.r = [image 1] r = [image 2] r = [image 3] r = [image 4] r = [image 5]
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