GCSE Matter

Boiling is...

• liquid to gas
• gas to solid
• gas to liquid
• solid to liquid

Particles (molecules) in a ______________________ have more energy than the other states of matter.

• gas
• solid
• liquid

At higher temperatures

• particles in an object have less internal energy
• particles in an object have more internal energy

Which state of matter has tightly packed molecules?

• solid
• liquid
• gas

Tags

NGSS.MS-PS1-4

Particles of a liquid

• are tightly packed together and stay in a fixed position.
• have no viscosity.
• decrease in volume with increasing temperature.
• are free to move around one another but still touch.

Tags

NGSS.MS-PS1-4

What term describes a solid changing to a gas?

• Deposition
• Sublimation
• Evaporation
• Freezing

Tags

NGSS.MS-PS1-4

What is condensation?

• gas to solid
• gas to liquid
• liquid to solid 
• solid to liquid 

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

What is internal energy?

• The relationship between mass and volume
• A measure of temperature
• A measure of pressure
• The sum of kinetic and potential energies of particles

The slower the particles in a substance move,

• the colder it is.
• the warmer it is.
• the more energy it has.
• the less energy it has.

Thermal energy is...

• heat energy.
• the energy of motion
• energy of nuclear processes.
• an indication of physical change.