Particles in Motion

The energy of motion is called ....................................energy.

• liquid

• kinetic

• rise

• pot

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-4

NGSS.MS-PS3-5

Water has been left in a pot on a hot stove.

Bubbles form throughout the liquid and rise to the top.

Which type of change is this?

• boiling

• evaporation

• density

• condensation

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

NGSS.MS-PS3-5

Temperature is a measure of _________ of the particles in an object.

• the difference between the potential energy and kinetic energy

• the sum of the potential energy and kinetic energy

• the average potential energy

• the average kinetic energy

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

NGSS.MS-PS3-5

When a substance is heated, the particles gain energy and move apart, increasing the volume.

The mass of the substance being heated _______.

• increases

• decreases

• varies unpredictably

• stays the same

Tags

NGSS.MS-PS1-4

When temperature increases, average _____ increases.

• potential energy

• kinetic energy

• gravitational potential energy

• chemical energy

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Bars of different metals are all heated to 100°C to determine how their volume and

length would be affected.

Which statement describes the most likely outcome of this

experiment?

• All of the volumes change and so do their lengths.

• All of the volumes change, but the lengths remain the same.

• The volumes and lengths do not change.

• All of the volumes change the same amount and the lengths remain constant.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

A liquid thermometer works because liquid ________ when warmed.

• expands

• contracts

• solidifies

• condenses

Tags

NGSS.MS-PS1-4

Hot-air balloons typically fly in the early morning or late afternoon.

Briefly explain why.

• The cool air is less dense, allowing the balloon to rise more easily.

• The cool air is denser, which allows the balloon to rise more easily.

• The cold air has no density, and the balloon is not allowed to rise

• Cold air is more dense, and the balloon is not allowed to rise