Work and Power Practice Quizizz

If the object does not move then what is happening

• nothing

• work

• power

• no work is being done on the object

Fred kicks a ball with a force of 20N to George, who is 5M away.

How much work was done to the ball?

• 25 J

• 100 J

• 4 J

• 75 J

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

Work divided by time equals...

• energy
• power

The unit used to measure power is the 

• Watt
• Newton
• Joule
• Newton*meter

Person A and Person B are both using the same amount of work to lift something. Person A takes half as much time to do it. Who has greater power.

• Person A

• Person B

If 150 Joules of work is needed to move a box 10 meters, what force was used? 

• 1500 N
• 15 N
• 1.5 N
• 150 N

Work is done when a weightlifter holds a barbell still above his head.

• True
• False

You push against the back of your friends car that is stuck. You push and be become very tired, but the car does not move. Did you do work?

• Yes, work was done

• No, work wasn't done

If you have the same work as someone, but in less time

• You are more powerful

• You are less powerful

• You have the same power