Student Guide Part 2_Slide 3_Thermal Energy & Temperature Scales

Front

What is thermal energy?

Back

The TOTAL amount of kinetic energy of the molecules in a system, taking into account size and mass.

Front

What is thermal equilibrium?

Back

The state in which all objects in the same room reach the same temperature.

Front

What happens to the average kinetic energy of particles as temperature increases?

Back

The average kinetic energy of its particles increases.

Front

What is a thermometer?

Back

A device (tool) that measures temperature.

Front

What temperature scales do scientists use?

Back

Celsius and Kelvin.

Front

What does a higher temperature indicate about molecular motion?

Back

It indicates that the molecules are moving faster.

Front

What is the relationship between thermal energy and temperature?

Back

Thermal energy is the total kinetic energy, while temperature measures the average kinetic energy of particles.

Front

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

Back

The thermal energy increases as the temperature rises.

Front

What is the Celsius scale based on?

Back

The freezing point of water at 0°C and the boiling point at 100°C.

Front

What is the Kelvin scale used for?

Back

It is used in scientific contexts and starts at absolute zero.