Internal energy

Which change of state? Solid to liquid

• Melting

• Evaporation

• Condensation

• Freezing

Which change of state? Liquid to gas

• Melting

• Evaporation

• Condensation

• Freezing

Which change of state? Gas to liquid

• Melting

• Evaporation

• Condensation

• Freezing

Which change of state? Liquid to solid

• Melting

• Evaporation

• Condensation

• Freezing

Matter changes state when...

• energy is added or removed
• energy is added
• energy is removed
• there is no energy

As molecules gain energy, they move _____ and spread apart, and vise versa.

• faster
• slower
• less
• inside

Tags

NGSS.MS-PS1-4

What state is a substance in if the temperature of a substance is between its melting point and its boiling point?

• solid
• liquid
• gas
• plasma

What is the internal energy of a substance

• The sum of the kinetic and potential energies of the particles

• The kinetic energy of the particles

• The potential energy of the particles

• The speed of the particles

The diagram shows a heating curve. What is happening between B and C?

• Melting

• Evaporating

• Condensing

• Freezing

The diagram shows a heating curve. What is happening between D and E?

• Melting

• Evaporating

• Condensing

• Freezing