Simple Machines | 1.7K plays

Simple Machines

Assessment

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Physics

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4th Grade

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1K plays

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Medium

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20 questions

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1.

Multiple Choice

1 min

1 pt

Which is the following is an example of work, to a scientist?

solving a mental math problem

carrying a book across the room

pushing against the floor

lifting a chair of the floor?

2.

Multiple Choice

1 min

1 pt

A simple machine is a device that helps to reduce the amount of _____ required to work.

force

energy

work

3.

Multiple Choice

1 min

1 pt

____ is done when a force is applied over a distance.

energy

work

force

4.

Multiple Choice

1 min

1 pt

A _____ is a fixed bar that us free to move around a fixed point known as a fulcrum.

pulley

inclined plane

lever

5.

Multiple Choice

1 min

1 pt

A ______ is a grooved wheel with a rope running along the groove.

lever

pulley

screw

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