Thermal expansion and contarction

What is Thermal Contraction ?

• Decreases in a materials  volume when its temperature decreases 

• The movement of fluids in a cycle because of convection 

• A material through which  thermal energy does not flow easily.

• increases in a materials  volume when its temperature increase

What is Thermal expansion?

• Decreases in a materials  volume when its temperature decreases 

• The movement of fluids in a cycle because of convection 

• A material through which  thermal energy does not flow easily.

• increases in a materials  volume when its temperature increase

Objects gain heat and _________.

• expand

• contract

An increase in the volume of a material due to a temperature increase in the material.

• Thermal contraction

• Thermal expansion

• Thermal heat

• Thermal energy

When temperature increases, distance between particles ______________

• decreases

• increases

• stays the same

When temperature decreases, distance between molecules ____________.

• increases

• decreases

• stays the same

What is happening to the fluid inside the thermometer in this image?

• vaporization

• thermal contraction

• boiling

• thermal expansion

Which of the following would cause the particles to spread out faster in the  liquid?

• decreasing the   temperature

• freezing the mixture

• adding heat energy

• removing heat energy

The faster the particles in an object move, the higher the …….of the object.

• temperature

• heat energy

• chemical properties

• potential energy