Thermal Energy and Matter

A pile of snow slowly disappears into the air, even though the temperature remains below freezing. Which process explains this?

• condensation

• deposition

• evaporation

• sublimation

Tags

NGSS.MS-PS1-4

What is happening to the fluid inside the thermometer in this image?

• thermal expansion

• thermal contraction

• vaporization

• boiling

Tags

NGSS.MS-PS1-4

Which effect of heating can cause chemical changes?

• boiling

• melting

• sublimation

• burning

Tags

NGSS.MS-PS1-2

Why does water expand when it forms ice?

• because its particles are moving more quickly

• because its particles are increasing in thermal energy

• because of intermolecular forces

• because all substances expand as they freeze

Tags

NGSS.MS-PS1-4

These two processes are both types of which?

• melting

• vaporization

• sublimation

• radiation

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

When a material gains thermal energy and melts, it is undergoing a physical change.

• True

• False

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

When a material loses thermal energy, it usually contracts.

• True

• False

Tags

NGSS.MS-PS1-4

Water boils at 100°C.

• True

• False

Tags

NGSS.MS-PS1-4

During a change of state, the thermal energy gained or lost by a material changes the kinetic energy of its particles.

• True

• False

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

The melting point of gold is more than 1,000°C

• True

• False