Work, Energy, and Power

A force exerted over a distance to move an object is ______________________.

• power

• work

• momentum

• Watt

Tags

NGSS.MS-PS3-4

NGSS.MS-PS3-5

A 5000N block is lifted 10 m. How much work was done?

• 50000 J

• 5000 J

• 500 J

• 50 J

Tags

NGSS.MS-PS3-4

If a group of workers can apply a force of 1,000 Newtons to move a crate 20 meters, what amount of work will they have accomplished?

• 20,000 J

• 200 J

• 2,000 J

• 20 J

If 68 W of power is produced in 18 seconds, how much work is done?

• 1,224 J

• 0.264 J

• 3.77 J

• 12.24 J

Tags

NGSS.HS-PS3-1

How much work is being done with 200 N of force over 426 meters?

• 85,200 J

• 45,620 J

• 90,480 J

• 62,329 J

Tags

NGSS.HS-PS2-1

What is power?

• transfer a force through a distance

• the rate of speed 

• the rate of work being done

• transfer of space over time

Tags

NGSS.MS-PS3-4

NGSS.MS-PS3-5

How much work is produced when 350 N is used to move a car 5 m (W=Fd)?

• 70 J

• 1750 J

• 355 J

• 175 J

A 5000N block is lifted 10 m. Calculate the work done.

• 50000 J

• 5000 J

• 500 J

• 50 J

Tags

NGSS.MS-PS3-5

What are the units for the power formula:

power=work/time

• W=s/J

• J=W/s

• J=s/W

• W=J/s

The rate (how fast) at which work is being done.

• Power

• Joules

• Work

• Newton

• No choice is correct