Flashcard - Thermal Energy

Front

Carl was at a work party. He held a cube of chocolate in his hand and forgot about it. The chocolate began to melt. His boss walked over and shook his hand. Which of the following statements about thermal energy is true?

Options:

Thermal energy traveled from Carl's hand to the chocolate.

,

Thermal energy traveled from the chocolate to Carl's hand.

,

Thermal energy did not travel between any substances.

Back

Thermal energy traveled from Carl's hand to the chocolate.

Front

Which type of energy transfer is taking place when Henry places the ice pack on his head?

Back

Conduction

Front

What type of energy transfer occurred when Carly's marshmallow was cooked without touching the fire?

Back

Radiation

Front

Which of the following statements about thermal energy is true?

• Hot air rises and cold air sinks.
• Cold air rises and hot air sinks.
• Hot and cold air move does not rise and sink.

Back

Hot air rises and cold air sinks.

Front

The hot air balloon rose into the air because the flame inside the balloon heated the air and caused it to rise. This is an example of...

Back

Convection

Front

What will happen to the thermal energy of a hot metal block placed on a cold brick after being heated with a flame?

Back

The temperature of the iron will lower and the temperature of the brick will rise until their temperatures are the same.

Front

The substance on the left has slow moving particles.

The substance on the right has fast moving particles. Which statement is true?

Options: The left substance has a higher temperature than the right substance, The left substance has a lower temperature than the right substance, The left substance has the same temperature as the right substance.

Back

The left substance has a lower temperature than the right substance.

Front

What is the transfer of thermal energy by infrared waves that can travel across space?

Back

Radiation

Front

What is the transfer of thermal energy, in a liquid or gas, in which the warmer substance rises and the cooler substance sinks and forms a current?

Back

Convection

Front

What is the transfer of heat through direct contact from a warmer substance to a cooler substance?

Back

Conduction