Thermal Energy and Particle Model

How do materials change from one state of matter to another?

• They gain or lose energy

• They break apart

• The particles get stickier

• They are magnetized to themselves

Which description best matches this particle model?

• Closely packed and can't move a lot.

• Particles are close together but can move a lot.

• Particles have lots of energy and can move around.

Which description best describes what a particle model shows?

• How many particles are in a solid, liquid or gas.
• How the particles in a solid, liquid or gas are arranged. 
• If there are any particles in a solid liquid or gas. 

What happens to particles as they heat up?

• They slow down
• Nothing
• They don't move
• They speed up

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Which state of matter has particles that move the least/slowest?

• solid

• water

• gas

Tags

NGSS.MS-PS1-4

Adding HEAT to matter causes its particles to:

• Move faster and farther apart

• Move slower and farther apart

• Move faster and closer together

• Move slower and closer together

Which of the following occurs when a liquid becomes a gas?

• the particles slow down

• the particles break away from one another

• the particles move closer together

How do the particles of matter move as the matter changes state in the diagram?

• The particles released energy and move as matter changed state?
• The particles released energy and moved more quickly.
• The particles gained energy and moved more slowly.
• The particles gained energy and moved more quickly.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

The condition where two substances in physical contact with each other exchange no heat energy. They are said to be the same temperature.

• Thermal Energy

• Cooler to Warmer

• Energy Transfer

• Thermal Equilibrium

Tags

NGSS.MS-PS1-4

Heat always travels from _____ to ______ objects.

• hot to cold

• cold to hot

• cold to cold

• hot to hot