numericals on workdone

Force multiplied by distance equals...

• work
• power

The unit of work is the ...

• joule
• force

Tags

NGSS.HS-PS3-2

The FARTHER you move an object, the more work you do.

• True
• False

Tags

NGSS.MS-PS3-5

A kid applies a force of 70 N to a ball over 1.1 meters. How much work did he do on the ball? 

• 77 J
• 7.7 J 
• 0.7 J 
• 770 J 

Tags

NGSS.HS-PS3-2

A weightlifter lifts two 300 newton weights 1.5 meters off the ground. How much work has he done?

• 600 J 
• 660 J
• 900 J 
• 1200 J 

Tags

NGSS.HS-PS3-1

How far will an object travel if a force of 350 N that is applied on it produces zero amount of work?

• 3 m

• 2 m

• 1 m

• 0 m

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

• doing homework

• lifting a box

• pushing a stationary box

• holding a box

Tags

NGSS.HS-PS2-1

1 joule =

• 1 N x 1 m

• 1 N / 1 m

• 1 m / 1 N

• 100 N x m

workdone according to the picture is _____

• F x A

• F x B

• A x B

• F x S

How much force is applied on a box if 150 Joules of work is done on it in order to move it a distance of 10 meters ?

• 1500 N

• 15 N

• 1.5 N

• 150 N