Chapter 3: Simple Machines Quiz

An example of a compound machine is

• ramp

• bicycle

• see-saw

• pulley

Why do we get more tired running than walking up the stairs?

• we use more power

• we travel a longer distance

• we use more force

• we do more work

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Which of the following is a requirement for work to be done?

• use a machine

• force moves an object

• object is held

• force is added

This is an example of work: A rocket accelerates through space.

• True

• False

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This is an example of work:

A teacher applies a force to a wall and the wall does not move.

• True

• False

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Which of the following is defined as work done per unit of time?

• force

• energy

• work

• power

Which unit do we measure force with?

• Meter

• Joule

• Newton

• Watt

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What unit do we measure work with?

• Gallon

• Newton

• Joule

• Meter

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What is a compound machine?

• a screw is a type of inclined plane

• made up of one simple machine

• made up of two or more simple machines

• none of the above

Which example is someone using a simple machine to do work?

• a man pushes his trolley up a ramp

• a boy runs across a field

• a woman drinks tea

• a grirl eats a pizza