Work and Power Quizizz

What is the unit used to measure work?

• Joule

• Watt

• Newton

• Pascal

________________ is the rate at which work is done.

• Power

• Work

• Time

• Energy

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

• doing homework

• lifting a box

• pushing a stationary box

• holding a bottle of water

True or false: when the distance an object moves is zero, the work done on the object is also zero.

• True

• False

If you increase your work and decrease your time, you will have

• more power

• less power

• same amount of power

• power rating can not be determined

If you do the same amount of work as someone, but do it in less time then

• You are more powerful

• You are less powerful

• You have the same power

Which of the following is a true statement about work?

• It measures how quickly an object accelerates

• It measures how much energy is gained or lost from a system

• It measures the change in an object's rate of velocity

• It measures how much time it takes to move an object

Which of these is a measurement of power?

• 100 joules
• 100 watts
• 100 meters per second
• 100 hertz

When is positive work done?

• When an object moves in the same direction as its force.
• When an object moves in the opposite direction as its force.
• When a force causes the object to move more quickly.
• When an object stops moving.

Which situation is work not done?

• lifting a 20 pound box off the floor

• holding a 20 pound box in place

• sliding a 20 pound box across the floor

• sliding a 20 pound box up an inclined plane