Study guide Temperature and Kinetic Energy

Front

Occurs when objects are heated

Back

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

Front

The temperature scale commonly used by scientists is ______.

Back

Kelvin is the temperature scale used by scientists, where absolute zero is 0 K.

Front

Occurs when objects are cooled

Back

Thermal contraction is the decrease in volume of a substance due to a decrease in temperature.

Front

At this temperature scale, water boils at 373 degrees and freezes at 273 degrees.

Back

Kelvin is the temperature scale where water boils at 373 K and freezes at 273 K.

Front

The temperature at which there is very little or no molecular motion.

Back

Absolute zero is the theoretical temperature at which a system's entropy reaches its minimum value, and molecular motion stops.

Front

What is the relationship between temperature and kinetic energy?

Back

As temperature increases, the kinetic energy of the molecules in a substance also increases.

Front

What happens to the volume of a gas when it is heated?

Back

The volume of a gas generally increases when it is heated, due to thermal expansion.

Front

What is the freezing point of water in Celsius?

Back

The freezing point of water is 0 degrees Celsius.

Front

What is the boiling point of water in Celsius?

Back

The boiling point of water is 100 degrees Celsius.

Front

What is thermal equilibrium?

Back

Thermal equilibrium is the state in which two objects in contact do not exchange heat, meaning they are at the same temperature.