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science

Science

4th Grade

science
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11 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is work?

The use of a force to move an object across a distance.

Solving a math problem.

A simple machine.

When you don't move an object.

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

Read and choose the correct simple machine.


Is made of a round object, a wheel, attached to a post, called an axle.

Wheel and axle

Wedge

Lever

Inclined plane

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

Read and choose the correct simple machine.


Is a simple machine made from two slanted sides that end in a sharp edge.

Wheel and axle

Wedge

Lever

Inclined plane

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

Read and choose the correct simple machine.


Is a stiff bar that rests on a support.

Wheel and axle

Wedge

Lever

Inclined plane

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

Read and choose the correct simple machine.


... or a ramp, is a slanted surface.

Wheel and axle

Wedge

Lever

Inclined plane

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

Read and choose the correct simple machine.


Can make work easier in two ways. It can decrease the amount of force needed to move an object. It can also change the direction that the force is applied.

pulley

screw

Lever

Inclined plane

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

Read and choose the correct simple machine.


Is an inclined plane wrapped around a center post.

pulley

screw

Lever

Inclined plane

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