Energy Transformations

Question 1

The image shows a dam.

Revolt · Accepted Answer

X: potential energyY: kinetic energy

Question 2

The diagram shows a swinging pendulum.

Revolt · Accepted Answer

The pendulum will slow down and eventually stop moving as the mechanical energy transforms to thermal energy.

Question 3

During nuclear fission and fusion, what is matter that seems to disappear actually converted into?

Revolt · Accepted Answer

energy

Question 4

Which activity directly converts energy from the Sun into chemical energy?

Revolt · Accepted Answer

a bean plant making its own food to grow

Question 5

The human body stores chemical energy from digested food. Some of the chemical energy is converted into mechanical energy when the body moves. Which statement is best supported by this information?

Revolt · Accepted Answer

Digested food is a source of potential energy.

Question 6

What are the two main types of energy?

Revolt · Accepted Answer

kinetic and potential

Question 7

Solar-powered cars use energy from the Sun to work. A panel on the car absorbs light energy from the Sun, which then generates an electric current. This electric current, in turn, allows the car to move. Which shows the correct order of energy transformations that take place in a solar-powered car?

Revolt · Accepted Answer

radiant, electrical, mechanical

Question 8

Which change is an example of transforming potential energy to kinetic energy?

Revolt · Accepted Answer

changing nuclear energy to radiant energy

Question 9

Plants are responsible for a very important energy transformation, as shown.

Revolt · Accepted Answer

radiant to chemical

Question 10

Energy can be transformed from one form to another. The diagram shows one such process.

Revolt · Accepted Answer

nuclear to thermal and radiant

Energy Transformations Answers

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