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Mini-Quiz: Gravitational Potential Energy

by Ron Kurtus (revised 17 May 2011)

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

1. Where is the zero reference point for gravitation?

At the surface of the Earth

At infinity

At zero

2. Why is the gravitational potential energy a negative number?

It is decreasing as you get further from the zero reference point

It is always less than the kinetic energy

It is the escape velocity

3. What are two applications of the combination of PE and KE?

There are no applications, since they are different forms of energy

Force and work

Escape velocity and orbits

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.

Use your potential

Resources and references

The following resources can be used for further study on the subject.

Web sites

Gravitational Potential Energy - HyperPhysics

Gravitation Resources


Top-rated books on Escape Velocity and Space Travel

Questions and comments

Do you have any questions, comments, or opinions on this subject? If so, send an email with your feedback. I will try to get back to you as soon as possible.

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Mini-Quiz: Gravitational Potential Energy

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