Work and Power

True or false
You do work only when you exert a force on an object and move it

• true
• false

Tags

NGSS.MS-PS3-5

NGSS.MS-PS3-4

Two factors that determine work are

• size of the force, and distance
• size of the force, and type of force
• mass, and distance

work is a measurement of how much force is applied over a certain

• distance
• velocity
• shape
• size

units for work are

• netwons
• joules
• meters
• seconds

Tags

NGSS.MS-PS3-5

NGSS.MS-PS3-4

if you push a cart with a force of 60 N for 2 m... how much work have you done

• 120 J
• 30 J
• 120 N 
• 30 N

Tags

NGSS.MS-PS3-5

work transfers

• sweat
• energy
• velocity
• effort

Tags

NGSS.MS-PS3-5

NGSS.MS-PS3-4

The unit used to measure power is the 

• Watt
• Newton
• Joule
• Newton*meter

Which of the following is the best example of work being done.

• doing homework

• lifting a box

• pushing a stationary box

• holding a box

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

• 50000 J
• 5000 J
• 500 J
• 50 J

Tags

NGSS.MS-PS3-2

 Work done = Force x _________

• a. distance
• b. acceleration
• c. velocity
• d. speed