Understanding Particle Motion and Energy

What happens to the particles of a substance when thermal energy is added?

• The particles move slower and come closer together.

• The particles move faster and spread apart.

• The particles stop moving completely.

• The particles change into a different substance.

Tags

NGSS.MS-PS1-4

Which of the following best describes the change in state from solid to liquid?

• Condensation

• Freezing

• Melting

• Sublimation

Tags

NGSS.MS-PS1-4

If a gas is cooled, what change in state might occur?

• It becomes a solid.

• It becomes a liquid.

• It remains a gas.

• It becomes plasma.

Tags

NGSS.MS-PS1-4

Which of the following is an example of a physical change due to the removal of thermal energy?

• Burning wood

• Freezing water

• Rusting iron

• Baking a cake

Tags

NGSS.MS-PS1-4

What is the effect of adding thermal energy to a liquid?

• The liquid will freeze.

• The liquid will evaporate.

• The liquid will condense.

• The liquid will solidify.

Tags

NGSS.MS-PS1-4

Which of the following processes involves the removal of thermal energy?

• Evaporation

• Melting

• Condensation

• Boiling

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NGSS.MS-PS1-4

Which state of matter has particles that are tightly packed and only vibrate in place?

• Gas

• Liquid

• Solid

• Plasma

What is the process called when a solid changes directly into a gas?

• Melting

• Freezing

• Sublimation

• Condensation

Tags

NGSS.MS-PS1-4

How does the motion of particles in a gas compare to those in a liquid?

• Particles in a gas move slower than in a liquid.

• Particles in a gas move faster and are more spread out than in a liquid.

• Particles in a gas are more tightly packed than in a liquid.

• Particles in a gas do not move.

What is the term for the change from liquid to gas at the surface of a liquid?

• Boiling

• Evaporation

• Freezing

• Condensation

Tags

NGSS.MS-PS3-4