Simple Machines

Simple Machines

8th Grade

20 Qs

quiz-placeholder

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Simple Machines

Simple Machines

Assessment

Quiz

Science

8th Grade

Practice Problem

Medium

NGSS
MS-PS2-2, MS-PS3-5, MS-ETS1-1

+3

Standards-aligned

Created by

Tabitha Thacker

Used 1+ times

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20 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What simple machine is used to move objects up or down a slope?

Inclined plane

Wheel and axle

Pulley

Lever

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

A librarian lifts a box of books that weighs 93N a distance of 1.5m. How much work does he do?

139.5 J

1395 J

13.95 J

1.395 J

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What simple machine is used to change the direction of a force applied?

Inclined plane

Pulley

Wedge

Screw

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In a third-class lever, where is the effort located?

Between the load and the fulcrum

At the end of the lever

Between the fulcrum and the load

At the point of load

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

If the output force of a wheel is 100N and the input force is 200N, what is the efficiency of the wheel?

200%

100%

50%

25%

Tags

NGSS.MS-PS2-2

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the main benefit of mechanical advantage in machines?

Increasing the amount of work done

Reducing the amount of force needed

Increasing the time taken to do work

Reducing the efficiency of machines

Tags

NGSS.MS-ETS1-4

NGSS.MS-PS2-2

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the mechanical advantage for a simple machine?

The ratio of input force to output force

The ratio of output force to input force

The sum of input and output forces

The difference between input and output forces

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