IS_Section Quiz_5.2_e

An electric toaster can convert electrical energy into thermal energy.

• True

• False

Plants can convert thermal energy from the Sun into chemical energy stored in them.

• True

• False

Energy cannot be created or destroyed.

• True

• False

In a Sankey diagram, the lengths of the arrows are proportional to the amount of energy they represent.

• True

• False

An electric fan is an energy converter.

• True

• False

When a magnesium ribbon is burned, its chemical energy is converted into light energy and thermal energy.

• True

• False

The total amount of energy in the Universe always remains constant.

• True

• False

(E) A low-efficiency appliance consumes less energy than a high-efficiency appliance when they do the same job.

• True

• False

A light bulb can convert electrical energy into

(1) light energy.

(2) thermal energy.

(3) chemical energy.

• A. (1) only

• B. (3) only

• C. (1) and (2) only

• D. (1) and (3) only

Which of the following correctly describes the energy conversion that takes place in the rubber band?

• A. chemical energy → kinetic energy

• B. kinetic energy → potential energy

• C. potential energy → chemical energy

• D. potential energy → kinetic energy