Thermal Energy Chapter 3 DL

Front

What is thermal energy?

Back

Thermal energy is the total kinetic energy of all the particles in an object. It is related to the temperature of the object.

Front

What happens when two objects at different temperatures come into contact?

Back

Heat energy transfers from the hotter object to the cooler object until they reach thermal equilibrium.

Front

What is thermal equilibrium?

Back

Thermal equilibrium is the state in which two objects in contact have reached the same temperature and no heat flows between them.

Front

How does the size of an object affect its thermal energy?

Back

Larger objects can have more thermal energy than smaller objects at the same temperature because they contain more particles.

Front

What is the relationship between temperature and thermal energy?

Back

Temperature is a measure of the average kinetic energy of the particles in a substance, while thermal energy is the total kinetic energy of all particles.

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 or gases) caused by differences in temperature.

Front

What is radiation?

Back

Radiation is the transfer of thermal energy through electromagnetic waves, such as sunlight.

Front

Why is water considered a good thermal conductor?

Back

Water has a high specific heat capacity, meaning it can absorb and store a lot of thermal energy without a significant change in temperature.

Front

What is specific heat capacity?

Back

Specific heat capacity is the amount of heat energy required to raise the temperature of 1 kilogram of a substance by 1 degree Celsius.