HEAT ENERGY

Study the chart below.

Which of the following is wrongly classified?

• Sun

• Oven

• Volcano

• Light bulb

Poor conductors of heat are also called insulators.

• True

• False

Which of the following is/are good conductors of heat?

A. Steel

B. Glass

C. Copper

D. Aluminium

• A only.

• A and B only.

• A, C and D only.

• All of the above.

Which of the following is natural source of heat?

• Iron

• Oven

• Light Bulb

• Sun

A bowl of hot maggi was left on the table. After an hour, the soup was cooler.

Which of the statements below is correct?

• The hot soup gained heat.

• The surrounding air lost heat.

• Heat was transferred from the hot soup to the surrounding air.

• Heat was transferred from the surrounding air to the hot soup.

Amira was given the following objects.

- Beach ball

- Copper wire

- Aluminium foil

- Cotton wool

- Towel

Tick which of the objects above are good conductors of heat. (You can tick more than one)

• Beach ball

• Copper wire

• Aluminium foil

• Cotton wool

• Towel

A good conductor of heat means it __________________________________.

Which of the following is/are poor conductors of heat?

A. Wood

B. Ceramic

C. Copper

D. Gold

• A only.

• A and B only.

• A, C and D only.

• All of the above.

Heat is measured by ______________.

• height

• weight

• brightness

• temperature

Which of the following mugs contains juice with the lowest temperature?

• 1

• 2

• 3

• 4