Quizizz Recovery: Work and Power

Multiple Choice

What is Energy?

• The ability to do anything

• The ability to cause change or do work

• The investigation of nature

• A fact of life

Multiple Choice

What would 54N be an example of?

• work

• power

• distance

• force

Multiple Choice

what would 1m be an example of?

• work

• power

• time

• distance

Multiple Choice

what would 14J be an example of?

• work

• distance

• time

• force

Multiple Choice

Which of the following is true about work?

• It measures how quickly an object accelerates
• It measures how much effort is applied over a distance.
• It measures the change of an object's rate of speed.
• It measures how much time it takes to move an object.

Multiple Choice

Work is done only if

• a force is applied.

• the force applied causes the object's motion.

• an object is in motion.

Multiple Choice

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

• 600 J

• 450 J

• 900 J

• 1200 J

Multiple Choice

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

Multiple Choice

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

Multiple Choice

You do 90 joules of work in 30 seconds. How much power have you generated?

• 30 watts
• 3 watts
• 120 watts
• 270 watts

Multiple Choice

How much power is required to do 40.2 J of work in 3.3 s?

• 12.18 W

• 132.66 W

• 43.5 W

• 0.08 W

Multiple Choice

In order to do 20.5 J of work in 0.46 s, how much power is required?

• 44.57 W

• 9.43 W

• 32.35 W

• 11.56 W

Multiple Choice

You move a 8 N object five meters in 4 seconds. How much power have you generated?

• 160 watts

• 10 watts

• 6.4 watts

• 17 watts

Multiple Choice

Which of the following would produce the most power?

• A mass of 10 kilograms lifted 10 meters in 10 seconds 
• A mass of 10 kilograms lifted 10 meters in 5 seconds
• A mass of 5 kilograms lifted 10 meters in 5 seconds
• A mass of 5 kilograms lifted 5 meters in 10 seconds