8.3 Heat/Specific Heat

Front

What is specific heat?

Back

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

Front

Which material has a higher specific heat, clay or iron?

Back

Clay has a higher specific heat than iron, meaning it requires more energy to change its temperature.

Front

If two blocks of aluminum are heated with the same amount of energy, which will have the smallest change in temperature?

Back

The larger block (10 kg) will have the smallest change in temperature because it has more mass.

Front

What does a high specific heat indicate about a substance?

Back

A high specific heat indicates that the substance requires more energy to change its temperature.

Front

What is heat transfer?

Back

Heat transfer is the flow of thermal energy from warmer objects to cooler objects.

Front

What is the relationship between mass and temperature change when heating a substance?

Back

The greater the mass of a substance, the smaller the temperature change for a given amount of heat energy added.

Front

What is thermal energy?

Back

Thermal energy is the total kinetic energy of the particles in a substance, related to its temperature.

Front

How does the size of a container affect the thermal energy of a substance at the same temperature?

Back

A larger container holds more substance, thus it has more thermal energy at the same temperature compared to a smaller container.

Front

What is the formula for calculating heat energy?

Back

The formula is Q = mcΔT, where Q is heat energy, m is mass, c is specific heat, and ΔT is the change in temperature.

Front

What happens to the temperature of a substance when it absorbs heat?

Back

The temperature of the substance increases as it absorbs heat energy.