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Mini-Quiz: Gravity and Newton's Cannon

by Ron Kurtus (revised 7 March 2011)

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

1. Would Newton's Cannon have similar results on the Moon?

No, because the Moon has no gravity

It depends if a rocket could bring a cannon up to the Moon

Yes, except you use different values of g and R

2. How would Newton increase the radius of the circular orbit?

Shoot the cannonball from a higher mountain

Shoot the cannonball straight up

There is only one possible radius

3. How could a cannonball possibly fly off into space?

Newton had some magical powers

This is a thought experiment that follows laws of Physics

A very small cannonball would be necessary

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.

Imagination is great

Resources and references

Ron Kurtus' Credentials


Gravity Resources

Newton's Cannonball and the Speed of Orbiting Objects - Bucknell University Physics

Newton's cannonball - Wikipedia

Interactive Demonstration of Newton's Cannon


Top-rated books on Simple Gravity Science

Top-rated books on Advanced Gravity Physics

Questions and comments

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Mini-Quiz: Gravity and Newton's Cannon

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