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Mini-Quiz: Equivalence Principles of Gravitation

by Ron Kurtus (revised 21 January 2011)

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



1. What is a requirement for the Weak Equivalence Principle?

Falling objects must be close to the mass of the Earth

The objects fall freely

The force of gravity must be very weak

2. If you double the acceleration of an object, how would that affect its inertia mass?

The acceleration has no effect on the mass of the object

The mass would double, since it is proportionate to the acceleration

The mass would become gravitational mass, provided a = g

3. What is an application of the Strong Equivalence Principle?

There are no applications, since it is just a theory

Time can be made to stand still

You can simulate gravity in a spaceship

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.


You can learn from performing experiments


Resources and references

Ron Kurtus' Credentials

Websites

Weak Equivalence Principle - Smoot Group Astrophysics

Equivalence Principle of Gravitation - Living Reviews in Relativity Journal - Max Planck Institute for Gravitational Physics

Equivalence principle - Wikipedia

The Principle of Equivalence - University of Tennessee-Knoxville Astronomy

Gravitation Resources

Books

Top-rated books on Gravity

Top-rated books on Gravitation


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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