Heat Energy

Front

What is the primary source of energy for most processes on Earth?

Back

The sun.

Front

What happens to the heat energy when a glass of water is placed in the freezer?

Back

The heat moves from the glass of water to the freezer.

Front

What is the process called when heat is transferred through direct contact between two objects?

Back

Conduction.

Front

How is heat transferred from an electric stove to a pan of water sitting on it?

Back

Conduction.

Front

What type of heat transfer occurs when a person touches a hot metal spoon?

Back

Conduction.

Front

Define conduction in the context of heat transfer.

Back

Conduction is the transfer of heat through direct contact between materials.

Front

What is convection and how does it differ from conduction?

Back

Convection is the transfer of heat through the movement of fluids (liquids or gases), while conduction is through direct contact.

Front

What is radiation in terms of heat transfer?

Back

Radiation is the transfer of heat in the form of electromagnetic waves, such as infrared radiation.

Front

How does the temperature of an object affect the rate of heat transfer?

Back

The greater the temperature difference between two objects, the faster the rate of heat transfer.

Front

What is thermal equilibrium?

Back

Thermal equilibrium is the state reached when two objects in contact no longer transfer heat, meaning they are at the same temperature.