Energy

Question 1

In a mechanical clock, the swinging of a pendulum causes the hands to move. The diagram shows the path of the pendulum as it swings. At which point in its swing does the pendulum have the least gravitational potential energy?

Revolt · Accepted Answer

C: point C

Question 2

A spring is compressed.

Revolt · Accepted Answer

B: potential energy

Question 3

Chemical energy is transformed into energy in the person’s muscles. Kinetic energy is from the person’s legs to the pedals. Kinetic energy is thermal energy due to friction when the wheels get warm.

Revolt · Accepted Answer

B: kinetic

Question 4

Oxygen bonds with carbon.

Revolt · Accepted Answer

A: chemical energy

Question 5

Which has the most thermal energy?

Revolt · Accepted Answer

B: a lake at 10°C

Question 6

Kinetic energy is from the person’s legs to the pedals.

Revolt · Accepted Answer

A: transferred

Question 7

An electron generates an electric field.

Revolt · Accepted Answer

C: electromagnetic energy

Question 8

Which has the least gravitational potential energy?

Revolt · Accepted Answer

B: a 10 kg barbell resting on the floor

Question 9

Kinetic energy is thermal energy due to friction when the wheels get warm.

Revolt · Accepted Answer

B: transformed into

Question 10

A soccer ball rolls along the grass.

Revolt · Accepted Answer

C: kinetic energy

Energy Answers

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