Thermal Expansion and Temperature Flashcard

Front

What happens to the volume of an object when it is heated?

Back

The volume of the object increases as it expands.

Front

How does the movement of molecules relate to the temperature of an object?

Back

The slower the molecules are moving, the lower the temperature of the object.

Front

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

Back

Energy is transferred from the warmer object to the colder object.

Front

Do all substances expand equally with the same change in temperature?

Back

No, different substances expand at different rates.

Front

What happens to the temperature of a substance during a phase change?

Back

The temperature remains the same during a phase change.

Front

What is thermal expansion?

Back

Thermal expansion is the increase in volume of a substance due to an increase in temperature.

Front

What is the relationship between temperature and kinetic energy?

Back

Temperature is a measure of the average kinetic energy of the molecules in a substance.

Front

What is specific heat capacity?

Back

Specific heat capacity is the amount of heat required to raise the temperature of a unit mass of a substance by one degree Celsius.

Front

What is the formula for calculating thermal expansion?

Back

The formula is ΔL = αL0ΔT, where ΔL is the change in length, α is the coefficient of linear expansion, L0 is the original length, and ΔT is the change in temperature.

Front

What is the coefficient of linear expansion?

Back

The coefficient of linear expansion is a material property that quantifies how much a material expands per degree of temperature increase.