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Mini-Quiz: Theories of Gravitation

by Ron Kurtus (revised 30 January 2010)

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



1. Why did Newton say that gravitation is a force at a distance?

Newton could not think of a better name

The force acts even when there is no physical contact between objects

The force disappears at a distance

2. According to Einstein's theory, what happens as you increase the mass of an object?

Space curves more towards the object

The object falls faster

It becomes relative

3. How can waves be particles at the same time?

It is part of the wave-particle duality theory

It is impossible

It happens when they fall in an elevator

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.


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