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Mini-Quiz: Effect of Velocity on Orbital Motion

by Ron Kurtus

Take this Mini-Quiz to check your understanding of the lesson material.

1. What are factors that determine whether the objects will collide?

Tangential velocity and size of the objects

Objects never collide when moving in space

Separation of objects

2. What happens when the tangential velocity is slightly greater than required for a circular orbit?

The object will spiral into the ground

The object will go into an elliptical orbit

The velocity will stabilize so that a circular orbit is maintained

3. What happens when the velocity is greater than the escape velocity?

The object takes a parabolic path

The object takes a hyperbolic path

It is impossible for a velocity to be greater than the escape velocity

If you got all three correct, you are on your way to becoming a Champion in Physics. If you had problems, you had better look over the material again.

Stay in orbit with your goals

Resources and references

Ron Kurtus' Credentials


Circular Orbits - Wikipedia

Center of Mass Calculator - Univ. of Tennessee - Knoxville (Java applet)

Center of Mass - Wikipedia

Gravitation Resources


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Top-rated books on Gravity

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Gravitation topics

Mini-Quiz: Effect of Velocity on Orbital Motion

Gravity and Gravitation

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Center of Mass

Orbital motion

Escape velocity


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