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Matter S23 Celebration of Knowledge

Total questions: 25

Worksheet time: 28mins

Name
Class
Date
1.
When molecules flow around each other, they are in this phase
a)
solid
b)
liquid
c)
gas
d)
plasma
2.

What takes place when a solid changes DIRECTLY to a gas? (ex: dry ice)

a)

condensation

b)

melting

c)

evaporation

d)

sublimation

3.

If energy _______, molecules in matter move slower.

a)

increases

b)

stays the same

c)

decreases

d)

none of these

4.

2. A change of state from a gas to a liquid is called....

a)

Melting

b)

Freezing

c)

Evaporation

d)

Condensation

5.
What happens to particles when they are heated?
a)
They speed up and spread out
b)
They slow down and compress
c)
They stop moving
d)
They move closer together and speed up
6.
What is deposition?
a)
Phase change from gas to solid
b)
phase change from liquid to solid
c)
Phase change from solid to gas
d)
Phase change from liquid to gas
7.
What line segment represents only the solid state?
a)
A-B
b)
B-C
c)
C-D
d)
D-E
8.
A substance's heating curve is shown in the graph.  What is its boiling point?
a)
100 C
b)
60 C
c)
80 C
d)
20 C
9.
The graph shows a cooling curve for an unknown substance.  What is happening during segment DE?
a)

boiling

b)

condensation

c)

freezing

d)

melting

10.
What state of matter is segment 5?
a)
Solid
b)
Liquid
c)
Gas
d)
Plasma
11.
From 30 degrees to 55 degrees, what state of matter is the substance?
a)
Solid
b)
Liquid
c)
Gas
d)
Plasma
12.

The boiling point of acetone is 50.5 degrees celsius, while the boiling point of water is 100 degrees celsius.

You are heating these two liquids. At what temperature will they likely separate?

a)

49.5

b)

60

c)

100

d)

150.5

13.

If object X has a density of 3 g/ml, what is the mass of object X?

a)

27 g

b)

0.12 g

c)

8.3 g

d)

75 g

14.

Calculate the mass of a substance which has a volume of 35.0 ml and a density of 0.50 g/ml.

a)

17.5 g

b)

0.014 g

c)

70 g 

d)

0.5 g

15.

Will an object that has a mass of 25g and a volume of 30ml float on pure water?

(hint: what's the density of water?)

a)

YES. It has a density less than water.

b)

YES. It has a density higher than water.

c)

NO. It has a density less than water.

d)

NO. It has a density higher than water.

16.

If an unknown substance had a mass of 64 g and a volume of 8.1 mL, which substance could it be?

a)

Aluminum

b)

Iron

c)

Lead

d)

Tin

17.

Which of the following liquids is LEAST dense?

a)

Corn Oil

b)

Water

c)

Glycerin

d)

Corn Syrup 

18.
The ability for a substance to dissolve in water is a physical property known as
a)
Density
b)
Solubility
c)
Texture
d)
Conductivity
19.

A student has a sample of Aluminum that has a volume of 10ml. Aluminum has a density of 2.7g/ml. What is the mass of the sample?

a)

270 g

b)

.27 g

c)

27.0 g

d)

27.0 g/mL

20.

If 96.5 grams of gold has a volume of 5 cm3 , what is the density of gold?

a)

482.5 g/cm3

b)

19.3 g/cm3

c)

0.05 g/cm3

d)

101.5 g/cm3

21.

If the object has a mass of 24.2 g, what is its density?

a)

0.41 g/ml

b)

2.42 g/ml

c)

242 g/ml

d)

84.2 g/ml

22.

What type of mixture is shown?

a)

Homogeneous

b)

Heterogeneous

c)

Compound

d)

Element

23.

Which of the following is NOT a part of the Kinetic Theory of Matter?

a)

All matter is made up of tiny particles.

b)

Particles are always moving in random paths

c)

Occasionally, particles stop moving.

d)

The type of movement of particles depends on the amount of energy.

24.

You calculated the density of an unknown substance to be 7.8g/cm3. According to the chart, which of the substances doe you most likely have?

a)

Zinc

b)

Copper

c)

Tin

d)

Iron

25.

During a phase change, temperature is _______.

a)

decreasing

b)

increasing

c)

constant

d)

zero

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