E&E Review Unit 3

How many steps are there in the product life cycle?

• 6

• 8

• 5

• 7

Denny uses 30 N of force to push a lawn mower 3 meters. Find the amount of work used.

• 10 J

• 90 N

• 90 J

• 10 N

What is the force of a 90 Kg book that is falling at 3 m/s^2?

• 30 J

• 270 N

• 270 J

• 30 N

How much power is required to pull a car if you use 20 J of work in 2 seconds?

• 10 N

• 10 W

• 10 J

• 40 W

How much power is required to pull a car if you use 75 J of work in 25 seconds?

• 1875 W

• 3 W

• 3 N

• 3 J

What is the force of a 20 kg book that is falling at 4 m/s^2?

• 5 W

• 80 N

• 80 J

• 5 N

Valeria uses 12 N of force to push a lawn mower 12 meters. Find the amount of work.

• 144 N

• 144 W

• 1 N

• 144 J

The six forms of energy includes which of the following?

• Kinetic

• Chemical

• Light/Radiant

• Nuclear

The six forms of energy include which of the following?

• Light/radiant

• Kinetic

• Nuclear

• Potential

The six forms of energy include which of the following?

• Heat/thermal

• Chemical

• Mechanical

• Electrical