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Work & Power / Simple Machines

Science

8th Grade

NGSS covered

Used 6+ times

Work & Power / Simple Machines
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20 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The ramp on the back of a moving van is an example of what type of simple machine?

A pulley

An inclined plane

wheel & axle

A wedge

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

In the picture above,the input force is-

the force of gravity on the wheel barrow

the force of the load in the wheel barrow

the force of friction between the wheel and the ground

the boy applies force to the handles

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

Which simple machine is used in the picture?

Inclined plane

Lever

Wheel & axle

Pulley

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The number of times a machine multiples your effort force is called-

mechanical advantage

mechanical efficiency

work

power

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Caroline uses 20 N of force to move a box of books 15 m. How much work did she do?

300 J

35 J

0.75 J

1.33 J

Tags

NGSS.MS-PS3-5

6.

MULTIPLE SELECT QUESTION

30 sec • 1 pt

Identify all of the ways that make pulleys work easier.

Pulleys increase the amount of input force required to move an object

Pulleys reduce the amount of input force required to move an object

Pulleys increase the amount of work done.

Pulleys change the direction of a force that is exerted.

Pulleys decrease the amount of work that is done

Tags

NGSS.MS-ETS1-1

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

Which part of the wheel barrow represents the fulcrum?

the load

the wheel

the handle

there is no fulcrum

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