Energy

Question 1

Which of the following objects have kinetic energy? Check all that apply.

Revolt · Accepted Answer

a book inside a moving vehicle; a running cat; a falling meteorite

Question 2

Two cars, car A and car B, have equal mass. Which car has the greater kinetic energy if both cars have the same velocity?

Revolt · Accepted Answer

Both cars have equal kinetic energy.

Question 3

Which has more kinetic energy, a small sports car traveling at 30 km/hr or a large tractor-trailer traveling at 75 km/hr?

Revolt · Accepted Answer

The tractor-trailer has more kinetic energy.

Question 4

5. Change the initial energy source to sun, the intermediate energy source to the solar panel, and the final energy source to the windmill. In this system, is produced from the sun and transformed into electricity in the solar panel. Both of these types of energy are considered forms of . The result of this system is that the windmill produces mechanical energy.

Revolt · Accepted Answer

light energy

Question 5

5. Change the initial energy source to sun, the intermediate energy source to the solar panel, and the final energy source to the windmill. In this system, is produced from the sun and transformed into electricity in the solar panel. Both of these types of energy are considered forms of . The result of this system is that the windmill produces mechanical energy.

Revolt · Accepted Answer

electromagnetic energy

Energy Answers

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