Topic 4: Thermal Energy Test Corrections

Front

If the objects contain the same amount of matter, the object at the ______ temperature has less thermal energy.

Back

lower

Front

Which has more total thermal energy? A cup of tea at 70 degrees Celsius, a kettle of tea at 70 degrees Celsius, or a teaspoon of tea at 70 degrees Celsius?

Back

Kettle of tea at 70 degrees Celsius

Front

T/F: The particles slow down and lose energy when the object is heated.

Back

False

Front

The Law of Conservation of Energy states that...

Back

energy cannot be created or destroyed.

Front

T/F: The thermal properties of an object determine how it will respond to heat.

Back

True

Front

What is thermal energy?

Back

Thermal energy is the total kinetic energy of the particles in an object.

Front

What happens to particles in an object when it is heated?

Back

The particles move faster and gain energy.

Front

What is the relationship between temperature and thermal energy?

Back

Higher temperature usually means higher thermal energy.

Front

What is conduction?

Back

Conduction is the transfer of thermal energy through direct contact.

Front

What is convection?

Back

Convection is the transfer of thermal energy through the movement of fluids (liquids and gases).