Practice questions Unit 1

Which phase changes absorb heat [gain energy]? (select 3)

• Freezing

• Vaporization

• Sublimation

• Condensation

• Melting

Tags

NGSS.MS-PS1-4

Which phase change release heat (release energy)? (select 2)

• Freezing

• Melting

• Condensation

• Sublimation

• Vaporization

Tags

NGSS.MS-PS1-4

Which is a physical change? (select 3)

• Decomposition

• Freezing

• Melting

• Dissolving

• Burning

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Which is a chemical change? (select 3)

• Burning

• Tearing

• Rusting

• Decomposition

• Dissolving

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Which are true about the phase changes in the graph? (select 3)

• 1 or 3 : Arrows show particles getting closer together

• 1 or 3 : Arrow show particles gaining energy.

• 2 or 4 : Arrows show particles getting closer together

• 2 or 4 : Arrow show particles gaining energy.

• 1 or 3 : Arrow show particles releasing (losing) energy

Tags

NGSS.MS-PS1-4

Which statements are true about solids? (select 4)

• State of matter with definite shape

• maintains a fixed volume and shape

• State of matter that would fill any container

• Particles can only vibrate in place

• Lowest kinetic energy

Tags

NGSS.MS-PS2-2

Which are true about Liquids? (Select 3)

• Particles can slip over each other to change places

• State of matter with definite volume but NOT shape

• Particles collide with one another constantly

• conforms to the shape of its container but retains a nearly constant volume independent of pressure

• has both variable volume and shape; expands to fill container.

Which is true about Gas? (Select 4)

• State of matter that would fill any container

• Highest kinetic energy

• State of matter with definte volume but NOT shape

• has both variable volume and shape; expands to fill container.

• Particles collide with one another constantly

Which action represents a transformation of chemical energy into thermal energy. (select 3)

• A dog chasing a ball after eating

• A match lighting a candle

• A windmill spinning in the breeze

• A solar panel charging a phone

• Gasoline combusting inside an engine

Which of these are examples of a chemical change? (select 4)

• Burning wood

• Rusting Iron

• Baking a Cake

• Boiling Water

• Souring Milk

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5