Search Header Logo

Work, Force, and Power Review

Authored by Mark Horton

Science

6th - 8th Grade

NGSS covered

Used 21+ times

Work, Force, and Power Review
AI

AI Actions

Add similar questions

Adjust reading levels

Convert to real-world scenario

Translate activity

More...

    Content View

    Student View

10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

George uses 15 N of force to move a box of books 20 m.

How much work did he do?

W= F x d 

1.33 J

0.75 J

300 J

300 N

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

A crane lifts an 8,000 N beam, 80 m to the top of a building in 50 s. Using the equation P= W/t, calculate how much power the crane uses.

W= F x d

P = W/t

13,800 W

9,800 W

12,800 W

10,800 W

Tags

NGSS.MS-PS3-4

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

An example of work not being done is:

A man carrying a tray across the room.

A woman lifting a baby out of bed.

A child pushing his baby brother in a stroller.

A man pulling his boat out of the water from a boat launch.

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In order for work to happen a force must be applied and:

The object must move in the same direction as the applied force.

The object is not moving or moving in a straight line at a constant speed.

The direction has no bearing on the force.

The object must move in the opposite direction as the force.

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following actions do more work on an object?  

Lifting an 90 N box 1 m up off the floor

Lifting a 90 N box 3 m up off the floor

Lifting a 100 N box 1 m up off the floor

Lifting a 100 N box 3 m up off the floor

Tags

NGSS.MS-PS3-5

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

A force of 30 N is applied to a crowbar to pry the lid off of a can of paint. The crowbar applies 75 N of force to the lid. What is the mechanical advantage of the crowbar?

Mechanical Advantage = Output Force/Input Force

0.4

2.5

45

30

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which takes more power: using 15 N to lift a ball 2 meters in 5 seconds or using 100 N to push a box 2 meters in 60 seconds?

P = W/t

W = F x d

15 N to lift a ball 2 meters in 5 seconds

100 N to push a box 2 meters in 60 seconds

Tags

NGSS.HS-PS3-2

Access all questions and much more by creating a free account

Create resources

Host any resource

Get auto-graded reports

Google

Continue with Google

Email

Continue with Email

Classlink

Continue with Classlink

Clever

Continue with Clever

or continue with

Microsoft

Microsoft

Apple

Apple

Others

Others

Already have an account?