Lesson 2 - Changes of State

1.

Multiple Choice

30 sec

1 pt

The temperature at which a liquid turns to a gas is

called the freezing point

called the boiling point

0 degrees Celsius

the same for an amorphous or a crystalline solid

2.

Multiple Choice

30 sec

1 pt

Particles of which of the following have the greatest thermal energy?

a gas

a liquid

a solid

an amorphous solid

3.

Multiple Choice

30 sec

1 pt

What is the melting point of water?

212°C

100°C

32°C

0°C

4.

Multiple Choice

30 sec

1 pt

How do you make matter change state?

Add energy to it

Take energy away from it

Both of these

5.

Multiple Choice

30 sec

1 pt

Adding more heat energy to particles of matter will

make them move slower

make them move faster

make them stop moving

destroy them

6.

Multiple Choice

30 sec

1 pt

What is it called when the state of matter changes from a liquid to a solid?

Vaporization

Freezing

Condensation

Melting

7.

Multiple Choice

30 sec

1 pt

What is it called when the state of matter changes from a solid to a liquid?

Vaporization

Freezing

Condensation

Melting

8.

Multiple Choice

30 sec

1 pt

What is it called when the state of matter changes from a liquid to a gas?

Boiling/ Evaporation

Freezing

Condensation

Melting

9.

Multiple Choice

30 sec

1 pt

What is it called when the state of matter changes from a gas to a liquid?

Vaporization

Freezing

Condensation

Melting

10.

Multiple Choice

30 sec

1 pt

In Condensation, the particles in a gas lose enough thermal energy and turn into a __________.

solid

liquid

gas

11.

Multiple Choice

30 sec

1 pt

What is the boiling point of water?

212°C

100°C

32°C

0°C

12.

Multiple Choice

30 sec

1 pt

When water begins to freeze, it's temperature stays at ______.

100°C

0°C

32°C

212°C

13.

Multiple Choice

30 sec

1 pt

Which of the following describes the process of freezing?

Freezing occurs when the particles of a solid vibrate so fast that they break free.

Freezing occurs when the temperature drops enough a gas turns into a solid.

Freezing occurs when the particles in a liquid slow down and take fixed positions.

Freezing occurs when the temperature of a substance drops to 0 degrees Celsius.

14.

Multiple Choice

30 sec

1 pt

Which state of matter cannot be compressed?

solid

gas

15.

Multiple Choice

30 sec

1 pt

When melting occurs what happens to heat and particle movement?

increase of heat and faster particles

decrease of heat and slower particles

16.

Multiple Choice

30 sec

1 pt

When melting occurs what happens to heat and particle movement?

increase of heat and faster particles

decrease of heat and slower particles

17.

Multiple Choice

30 sec

1 pt

When freezing occurs what happens to heat and particle movement?

increase of heat and faster particles

decrease of heat and slower particles

18.

Multiple Choice

30 sec

1 pt

When condensation occurs what happens to heat and particle movement?

increase of heat and faster particles

decrease of heat and slower particles

19.

Multiple Choice

30 sec

1 pt

Molten (liquid) steel cooling to form a solid is an example of __________________________________.

sublimation

freezing

boiling

deposition

20.

Multiple Choice

30 sec

1 pt

An iceberg changing from a solid to a liquid is called _______________________________.

sublimation

freezing

melting

condensation

21.

Multiple Choice

30 sec

1 pt

Adding heat to a substance decreases the kinetic energy of the particles within a substance, and makes them move closer to each other.

True

False

22.

Multiple Choice

20 sec

1 pt

Molecules have energy and _________ stop moving

rarely

always

never

sometimes

23.

Multiple Choice

20 sec

1 pt

Matter changes state when...

energy is added or removed

energy is added

energy is removed

there is no energy

24.

Multiple Choice

20 sec

1 pt

As molecules gain energy, they move _____ and spread apart, and vise versa.

faster

slower

less

inside

25.

Multiple Choice

20 sec

1 pt

Energy(heat) is removed in order to go from ....

gas to solid

solid to liquid

solid to gas

liquid to gas

26.

Multiple Choice

20 sec

1 pt

Matter will change state when enough energy (heat) is added to , or removed from, the molecules.

true

false

27.

Multiple Choice

45 sec

1 pt

Suppose you pour a glass of ice water and set it on the kitchen table. After a few minutes, the outside of the glass will be covered with drops of water. Why did this happen?

Oxygen in the air cooled and condensed onto the cold glass.

Water vapor in the air cooled and condensed onto the cold glass.

Water vapor in the air cooled and evaporated onto the cold glass.

Water seeped through pores in the glass.

28.

Multiple Choice

20 sec

1 pt

What happens to a substance when it changes from a liquid to a solid?

it gains mass

it gains energy

it loses mass

it loses energy

29.

Multiple Choice

20 sec

1 pt

What type of energy does a substance lose when it cools?

thermal

gravitational

nuclear

potential

30.

Multiple Choice

30 sec

1 pt

What happens to particles during changes of state between solid and liquid.

Particles move so fast they break from their fixed position.

Particles melt and become a liquid.

Particles find a circular orbit around an atom's nucleus.

Particles stop vibrating and change into their liquid form.

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