KMT and Heat Transfer Practice Quiz

According to the Kinetic Molecular Theory, what is true about molecules?

• They are in constant motion

• They are static

• They only move when energy is applied

• They move faster in solids than in gases

According to the Kinetic Molecular Theory, how do molecules in a solid behave?

• Molecules are very far apart and in random motion.

• Molecules flow or glide over each other.

• Molecules are in continual motion and are much farther apart than in liquids.

• Molecules are very close to each other due to attraction of charge and have an ordered arrangement.

How does the kinetic energy of molecules in a gas compare to that in solids and liquids?

• It is less than in solids but more than in liquids.

• It is the same as in solids and liquids.

• It is greater than in solids and liquids.

• It is only greater than in solids but less than in liquids.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-5

What happens to the molecules in a substance when thermal energy is added to it?

• The molecules move slower and get closer together.

• The molecules move faster and space themselves farther apart.

• The molecules do not change their behavior.

• The molecules move faster and get closer together.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

What is absolute zero?

• The temperature at which molecules move at their fastest speed.

• The temperature at which molecules have maximum kinetic energy.

• The temperature used to describe when the movement of molecules is as slow as it can possibly be.

• The temperature at which water freezes.

Tags

NGSS.MS-PS1-4

What is temperature a measure of?

• The average speed of molecules in a substance.

• The average kinetic energy of molecules in a substance.

• The total potential energy of molecules in a substance.

• The total thermal energy in a substance.

Tags

NGSS.HS-PS1-5

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As the kinetic energy of molecules decreases, what happens to the temperature?

• The temperature increases.

• The temperature does not change.

• The temperature fluctuates unpredictably.

• The temperature decreases.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Which state of matter has particles with the lowest kinetic energy?

• Solid

• Liquid

• Gas

Tags

NGSS.MS-PS1-4

As molecules move faster, what happens to their spacing?

• They move closer together

• They don't change

• They move further apart

Tags

NGSS.MS-PS1-4

Which two phase changes happen because energy leaves or is removed from the substance?

• Freezing

• Condensation

• Vaporization (Boiling/Evaporation)

• Melting

Tags

NGSS.MS-PS1-4