Thermal Energy Test

Front

What is thermal energy?

Back

Thermal energy is the total kinetic energy of the particles in an object, which determines its temperature.

Front

How does thermal energy transfer occur?

Back

Thermal energy transfers through conduction, convection, and radiation.

Front

What is conduction?

Back

Conduction is the transfer of thermal energy through direct contact between materials.

Front

What is convection?

Back

Convection is the transfer of thermal energy through the movement of fluids (liquids and gases) caused by differences in temperature.

Front

What is radiation?

Back

Radiation is the transfer of thermal energy through electromagnetic waves, such as heat from the sun.

Front

What determines the temperature of an object?

Back

The temperature of an object is determined by the speed of its atoms; faster atoms mean higher temperature.

Front

What happens to thermal energy when hot soup is poured into a room-temperature bowl?

Back

Thermal energy flows from the higher-temperature soup to the bowl until they reach the same temperature.

Front

Which cup has the most thermal energy if all are at the same temperature?

Back

The larger cup (Trenta) has the most thermal energy because it contains more liquid.

Front

What is the role of radiation when warming hands by a campfire?

Back

Radiation transfers thermal energy from the campfire to the students' hands.

Front

What is the difference between temperature and thermal energy?

Back

Temperature measures the average kinetic energy of particles, while thermal energy is the total kinetic energy of all particles in an object.