Thermal Energy Quiz

On a cold winter day, Jasmine warms her hands by holding a cup of hot coffee. How is thermal energy (heat) transferred to Jasmine’s hands?

• evaporation

• conduction

• convection

• radiation

When does thermal energy (heat) stop moving between two objects?

• when one object loses all its thermal energy

• when one object gains enough thermal energy to melt

• when one object loses enough thermal energy to freeze

• when both objects reach the same temperature

Which of the following is an example of cooling (heat energy moving out of a material)?

• Liquid water changes to solid ice.

• Liquid water changes to water vapor (gas).

• Snow changes to liquid water.

• Ice cream left in a bowl changes to liquid.

How does the Sun’s energy reach the Earth?

• radiation

• convection

• conduction

• melting

The picture below shows a pot of stew warming on the stove. Which of the following is a result of convection?

• Heat energy will transfer from the stove to the pot.

• Heat energy will transfer to the pot and some of the stew.

• Heat energy will transfer from the pot to the stove.

• Heat energy will transfer throughout the entire pot of stew.

Many restaurants serve drinks in Styrofoam cups like the one pictured below. Why might a hot drink served in a Styrofoam cup stay hot longer than a hot drink served in a paper or plastic cup? (5.P.3.2)

• A. A paper cup is a poor conductor of heat.

• B. A Styrofoam cup is a good conductor of heat.

• C. A Styrofoam cup is a poor conductor of heat.

• D. A plastic cup is a poor conductor of heat.

Which of the following statements best describes convection? (5.P.3.1)

• A. The transfer of heat by electromagnetic waves.

• B. The transfer of heat by the movement of liquids and gases.

• C. The transfer of heat between objects that are touching one another.

• D. The transfer of heat from a cooler object to a warmer object.

Which of the following is the main source of electromagnetic energy on Earth? (5.P.3.1)

• A. The Atlantic Ocean

• B. The Moon

• C. The Sun

• D. The Equator

Which picture is the best example of a transfer of thermal energy by radiation?

• water rapidly boiling in a pot on the stove

• icicles melting on a sunny day

• eggs frying in a pan on the stove

• smoke and gases rising from a campfire

Which picture is the best example of a transfer of thermal energy by conduction?

• water rapidly boiling in a pot on the stove

• icicles melting on a sunny day

• eggs frying in a pan on the stove

• smoke and gases rising from a campfire