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Mini-Quiz of Escape Velocity from Gravity by Ron Kurtus - Succeed in Understanding Physics. Also refer to surface escape velocity, Universal Gravitational Constant, Earth, rocket, physical science, School for Champions. Copyright © Restrictions

Mini-Quiz: Escape Velocity from Gravity

by Ron Kurtus (revised 16 May 2011)

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

1. Why is it sometimes called surface escape velocity?

Because it is the attained velocity at or near the surface

To avoid confusion with underwater escape velocity

No one is sure where the expression came from

2. Why is the escape velocity of the Moon so much less than the Earth's?

Because the Moon is so far from the Earth

Because the gravity and radius of the Moon are much less than the Earth's

The escape velocity from the Moon is actually higher than from Earth

3. What might happen if a rocket blasted off at the gravity escape velocity from the Earth?

The rocket exterior might burn up before it left the atmosphere

The rocket would only make it to the Moon

The rocket would go into space and never come back

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.


A good vocabulary is important


Resources and references

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

Web sites

What is escape velocity? - From PhysLink

Escape Velocity - From Wikipedia

Physics Resources

Books

Top-rated books on Escape Velocity and Space Travel


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