Work and simple machines

Work and simple machines

7th Grade

29 Qs

quiz-placeholder

Similar activities

7P23

7P23

7th Grade

29 Qs

Academic  Vocabulary Pre and Post Assessment

Academic Vocabulary Pre and Post Assessment

6th - 8th Grade

25 Qs

Simple Machines

Simple Machines

7th Grade

30 Qs

Work and Simple Machine

Work and Simple Machine

7th Grade

30 Qs

Energy

Energy

7th Grade

28 Qs

Math Review: Mechanical Systems

Math Review: Mechanical Systems

7th - 8th Grade

25 Qs

Work/Power Vocabulary

Work/Power Vocabulary

7th - 10th Grade

27 Qs

Work, Force & Mechanical Advantage

Work, Force & Mechanical Advantage

6th - 12th Grade

27 Qs

Work and simple machines

Work and simple machines

Assessment

Quiz

Science

7th Grade

Hard

NGSS
MS-PS3-5, MS-PS3-2, MS-PS3-3

+2

Standards-aligned

Created by

Brittany Schiele

Used 9+ times

FREE Resource

29 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is work?

the transfer of energy that occurs when a force is applied over a distance

the force that draws things to the earth

the force that generates thermal energy

the transfer of energy that occurs due to friction

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is power?

W=Fd

the rate at which work is done

How efficient a machine is

MA=output force/input force

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Lifting a stone block 146m to the top of the Great Pyramid required 146,000J of work. How much work was done to lift the block halfway to the top?

36.5 N

73,000J

146,000 W

292,000%

Tags

NGSS.MS-PS3-2

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

Is working being done when HOLDING a suit case

Yes

No

25J

10W

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

A motor applies a 5000-N force and raises an elevator 10 stories. If each story is 4M tall, how much work does the motor do?

75W

3.3333%

200,000J

24 J

Tags

NGSS.MS-PS3-2

NGSS.MS-PS3-4

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Calculate the power in wats, needed to mow a lawn in 50 minutes. If the work required is 500,000J.

10 W

20 W

30%

30W

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the equation for efficiency?

output work / input work x 100

output force + input force X Work

Input work/ output work

MA = output force/input force

Create a free account and access millions of resources

Create resources
Host any resource
Get auto-graded reports
or continue with
Microsoft
Apple
Others
By signing up, you agree to our Terms of Service & Privacy Policy
Already have an account?