What is an example of freezing?

Chocolate bar turning into liquid chocolate

What is an example of condensation?

Chocolate bar turning into liquid chocolate

What is an example of evaporation?

Chocolate bar turning into liquid chocolate

What is an example of melting?

Chocolate bar turning into liquid chocolate

Adding heat to a substance ....

increases the distance between particles

decreases the distance between particles

slows down the vibrations of the particles

As thermal energy is added to a substance, which of the following changes can be predicted?

Vibration of individual particles will increase

Spacing between particles will decrease

Temperature of the substance will decrease

The pressure of the substance will increase

Which of the following statements best describes the relationship between temperature and kinetic energy of particles in a substance

As kinetic energy increases, temperature increases

As kinetic energy decreases, temperature is not affected

As kinetic energy increases, temperature decreases

As kinetic energy decreases, temperature increases

Which of the following labels would be most appropriate for completing the diagram?

C = kinetic energy of particles increases

A = particles become more tightly packed

B = the pressure of the substance decreases

D = particles become more widely spaced

This is an unknown substance that had heat added to it until it underwent phases changes. What phase change is happening at A?

a solid is changing into a liquid

a liquid is changing into a gas

. When you touch a cold doorknob, your hand feels cold because ___________________________.

Heat travels from your hand into the doorknob so your hand feels cold.

Cold travels from the doorknob into your hand. so your hand feels cold.

Energy and Phase Changes

Authored by Charles Martinez

Chemistry

6th - 7th Grade

NGSS covered

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30 questions

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MULTIPLE CHOICE QUESTION

1 min • 1 pt

What causes a phase change?

Motion

Speed

Energy

Friction

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

What happens to particle movement/speed when energy is added to a phase?

Particles slow down

Particles go faster

Particles don't move

Particles stay the same speed

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Solid changed into a liquid

Freezing

Condensation

Melting

Evaporation

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Liquid changed into a gas

Freezing

Condensation

Melting

Evaporation

Tags

NGSS.MS-PS1-4

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Gas changed into a liquid

Freezing

Condensation

Melting

Evaporation

Tags

NGSS.MS-PS1-4

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Liquid changed into a solid

Freezing

Condensation

Melting

Evaporation

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Which two phases changes add energy?

Freezing, Melting

Condensation, Evaporation

Freezing, Condensation

Melting, Evaporation

Tags

NGSS.MS-PS1-4

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Energy and Phase Changes

What causes a phase change?

What happens to particle movement/speed when energy is added to a phase?

Solid changed into a liquid

Liquid changed into a gas

Gas changed into a liquid

Liquid changed into a solid

Which two phases changes add energy?

Which two phases changes remove energy?

What is an example of freezing?

What is an example of condensation?

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