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

point C

Question 2

Oxygen bonds with carbon.

Revolt · Accepted Answer

chemical energy

Question 3

An electron generates an electric field.

Revolt · Accepted Answer

electromagnetic energy

Question 4

A soccer ball rolls along the grass.

Revolt · Accepted Answer

kinetic energy

Question 5

A spring is compressed.

Revolt · Accepted Answer

potential energy

Question 6

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

kinetic; Selection 1: kinetic; Selection 2: transferred; Selection 3: transformed into

Question 7

Which has the most thermal energy?

Revolt · Accepted Answer

a lake at 10°C

Question 8

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

Revolt · Accepted Answer

transferred

Question 9

Which has the least gravitational potential energy?

Revolt · Accepted Answer

a 10 kg barbell resting on the floor

Question 10

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

Revolt · Accepted Answer

transformed into

Energy Answers

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