Pre-AP Chemistry Unit 1 Review

When a substance melts, the kinetic energy _____________.

• decreases
• stays the same
• increases
• decreases then increases

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

The molecules in this picture are in what phase?

• solid
• liquid
• gas
• plasma

Tags

NGSS.MS-PS1-4

If this substance had kinetic energy ADDED, it would be in what phase?

• solid
• liquid
• gas
• plasma

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

What is the energy that an object has because it is moving?

• kinetic
• potential
• electric
• wind

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-5

What takes place when a liquid changes to a gas?

• condensation
• melting
• evaporation
• freezing

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

What takes place when a liquid changes to a solid?

• condensation
• melting
• evaporation
• freezing

Tags

NGSS.MS-PS1-4

What takes place when a gas changes to a liquid?

• melting
• freezing
• evaporation
• condensation

Tags

NGSS.MS-PS1-4

If energy is taken out of the substance, and the substance changed into a liquid,

• the substance started as a solid
• the substance started as a liquid
• the substance stayed the same
• the substance started as a gas

Tags

NGSS.MS-PS1-4

Are there molecules moving in a solid brick?

• yes
• no
• maybe
• not sure

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

When molecules move slower, kinetic energy

• increases
• stays the same
• decreases
• none of these

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-1