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Final exam first semester

Total questions: 111

Worksheet time: 2hrs 45mins

Name
Class
Date
1.

Hot sand, in the summertime, burning your feet as you walk across it would be...

a)

Radiation

b)

Convection

c)

Conduction

2.

Hot sand, in the summertime, burning your feet as you walk across it would be...

a)

Radiation

b)

Convection

c)

Conduction

3.

Hot sand, in the summertime, burning your feet as you walk across it would be...

a)

Radiation

b)

Convection

c)

Conduction

4.

Less dense warm air rises and more dense cool air sinks in this kind of heat transfer...

a)

Radiation

b)

Conduction

c)

Convection

5.

What happens to particles as you add thermal energy?

a)

Molecules speed up and contract, causing the material to expand.

b)

Molecules break apart and the atoms spread out.

c)

Molecules speed up and spread out, causing the material to expand.

d)

Molecules slow down and begin to contract.

6.

The sun's rays heating the earth is an example of...

a)

radiation

b)

convection

c)

conduction

7.

Heat always travels...

a)

alone

b)

by air

c)

with a partner

d)

from hot to cold

8.

Heat energy is also known as

a)

Thermal Energy

b)

Kinetic Energy

c)

Potential Energy

9.

When particles are heated they,

a)

expand and move apart

b)

expand and move together

c)

contract and move apart

d)

contract and move together

10.

Which state of matter does this picture show?

a)

Solid

b)

Liquid

c)

Gas

11.

What state of matter does this picture show?

a)

Solid

b)

Liquid

c)

Gas

12.

Which state of matter does this picture show?

a)

Solid

b)

Liquid

c)

Gas

13.

What is happening in this picture of water boiling?

a)

Molecules are speeding up

b)

Molecules are slowing down

14.
The amount of energy required to raise the temperature 1ºC for every kilogram is called____?
a)
Thermal Energy
b)
Specific Heat
c)
Temperature
d)
Kinetic Energy
15.
What is the symbol for Thermal Energy?
a)
Q
b)
t
c)
m
d)
C
16.
What unit do you use to measure Thermal Energy?
a)
J/Kg ºC
b)
Kg
c)
ºC
d)
J
17.
What is the symbol for Specific Heat
a)
Q
b)
t
c)
m
d)
C
18.
What is the equation to measure change in Thermal Energy?
a)
Q=mc∆t
b)
Q=mc
c)
Q= ∆mct
d)
m=QC
19.
Water has a specific heat of 4184 J/KgºC.  Wood has a specific heat of 1760 J/KgºC.  What material needs more energy to raise the temperature 1ºC
a)
Wood
b)
Water
c)
Both are the same
20.
Copper, Stainless Steel, Carbon Steel, and Zinc were all heated using the same thermal energy.  What material would be the coolest after being heated?
a)
Copper
b)
Carbon Steel
c)
Zinc
d)
Stainless Steel
21.
A material was cooled from 100ºC to 40ºC.  What is the temperature change?
a)
60ºC
b)
40ºC
c)
-60ºC
d)
-40ºC
22.

What does temperature measure?

a)

Heat

b)

ºC

c)

Kinetic Energy of Molecules

d)

Thermal Energy

23.
Convert from meters to cm:  9 meters
a)
900 cm
b)
90 cm
c)
0.9 cm
d)
0.09 cm
24.
Convert 17 m to cm:
a)
0.17 cm
b)
0.017 cm
c)
1,700 cm
d)
170 cm
25.
Convert 300 meters to centimeters:
a)
3000 cm
b)
0.3 cm
c)
30,000 cm
d)
3 cn
26.
240 cm = ___________ m
a)
2400
b)
24
c)
2.4
d)
0.24
27.
15.6 L = ___________ mL
a)
15,600
b)
156,000
c)
1,560,000
d)
15,600,000
28.
2804 mg = ___________ g
a)
0.2804
b)
2.804
c)
28.04
d)
280.4
29.
490,000 g =____ kg
a)
490
b)
49
c)
4,900
d)
0.49
30.
Is 20 g greater than, less than, or equal to 2 kg?
a)
greater than
b)
less than
c)
equal to
31.
42 L = ___mL
a)
4,200
b)
.0042
c)
4.20
d)
42,000
32.

When we measure a distance the number will get bigger as the units get _______________.

a)

bigger

b)

smaller

33.

When we measure a distance the number will get smaller as the units get _______________.

a)

bigger

b)

smaller

34.
Convert 300 cm to m:
a)
3 m
b)
30 m
c)
0.3 m
d)
0.03 m
35.
If an eraser is 25 millimeters long, how many centimeters long is it?
a)
2
b)
2.5
c)
25
d)
250
36.
820 mg = _____ cg
a)
82,000
b)
82
c)
0.82
d)
0.0082
37.

Density

a)

Physical property

b)

Chemical property

38.

Flammability

a)

Physical property

b)

Chemical property

39.

Solubility (ability to dissolve)

a)

Physical property

b)

Chemical property

40.

Can react with acid

a)

Physical property

b)

Chemical property

41.

Melting point

a)

Physical property

b)

Chemical property

42.

Can react with water

a)

Physical property

b)

Chemical property

43.

Hardness

a)

Physical property

b)

Chemical property

44.

Boiling point

a)

Physical property

b)

Chemical property

45.

Luster (shine)

a)

Physical property

b)

Chemical property

46.

Can react with air

a)

Physical property

b)

Chemical property

47.

Odor

a)

Physical property

b)

Chemical property

48.

Freezing point

a)

Physical property

b)

Chemical property

49.

Copper can oxidize

a)

Physical property

b)

Chemical property

50.

Which of the following is the proper definition of chemistry?

a)

the study of the composition, structure, and properties of matter and the changes it undergoes

b)

the study of life

c)

the study of scientific processes

d)

the study of the human body

51.

Anything that has mass and takes up space

a)

compound

b)

element

c)

matter

d)

substance

52.

Rusting metal is an example of a ____ change.

a)

chemical

b)

phase

c)

state

d)

physical

53.

Josh decided to mix some vinegar with baking soda. He knew that a reaction occurred because he made careful observations. He noted that the mixture started to foam up and bubble, and it was white in color. How did Josh know that a chemical reaction occurred?

He was sure a reaction occurred because of

a)

the color of the mixture

b)

the smell of the vinegar

c)

the volume of the mixture

d)

the formation of a gas

54.

Use the basic properties of solids, liquids, and gases to identify the correct state of matter in the image.

a)

(A) gas, (B) liquid, (C) solid

b)

(A) solid, (B) liquid, (C) gas

c)

(A) liquid, (B) solid, (C) gas

d)

(A) solid, (B) gas, (C) liquid

55.

a change in a substance that does not involve a change in the identity of the substance

a)

Physical change

b)

Chemical Change

56.

a change in which one or more substances are converted into different substances

a)

physica change

b)

chemical change

57.

Which of the following is NOT a physical change?

a)

Crushing a can

b)

boiling water

c)

shredding paper

d)

burning paper

58.

Which of the following is NOT a sign of a chemical change?

a)

formation of a precipitate

b)

unexpected color change

c)

unexpected temperature change

d)

change in state of matter

59.

Which of the following is a physical change?

a)

Baking a cake

b)

Rusting iron

c)

Burning wood

d)

Melting ice

60.

Which of the following is a sign that a chemical reaction has occurred?

a)

Production of heat or light

b)

Change in texture

c)

Change in size

d)

Change in shape

61.
The amount of energy required to raise the temperature 1ºC for every kilogram is called____?
a)
Thermal Energy
b)
Specific Heat
c)
Temperature
d)
Kinetic Energy
62.
What unit do you use to measure Thermal Energy?
a)
J/Kg ºC
b)
Kg
c)
ºC
d)
J
63.
What is the symbol for Specific Heat
a)
Q
b)
t
c)
m
d)
C
64.
What is the equation to measure change in Thermal Energy?
a)
Q=mc∆t
b)
Q=mc
c)
Q= ∆mct
d)
m=QC
65.
What does temperature measure?
a)
Heat
b)
ºC
c)
Kinetic Energy
d)
Thermal Energy
66.
How does heat flow?
a)
Always from cold to warm
b)
Always from warm to cold
c)
Both warm to cold & cold to warm
d)
It depends on the temperature
67.
If a balloon is cooled what will happen to the volume?
a)
Volume will increase
b)
Volume will decrease
c)
Volume will not change
68.
Gases have...
a)
A definite shape and volume
b)
A definite shape but no definite volume
c)
No definite shape but a definite volume
d)
No definite shape or volume
69.
Gas molecules can easily be compressed  because ___________. 
a)
gas molecules are soft
b)
gas molecules are far apart
c)
gas molecules follow the shape of the container
70.
Pressure is caused by ______.
a)
gravity.
b)
gas molecules colliding with each other.
c)
gas molecules colliding with surfaces of the container.
d)
gas molecules reacting with each other.
71.
How could you "re-inflate" the balloon?
a)
Heat the balloon up 
b)
Cool the balloon down
c)
Remove some helium
d)
Ask the balloon to re-inflate
72.
Pick the best answer to explain all properties of gases....
a)
They're fluids 
Can be compressed
Little space between particles 
b)
They're solids 
Can be compressed
Lots of space between particles 
c)
They're fluids 
Cannot be compressed
Lots of space between particles 
d)
They're fluids 
Can be compressed
Lots of space between particles 
73.
What will happen to the volume of a gas under constant temperature if the pressure increases?
a)
Increase
b)
Decrease
c)
Nothing
d)
Explosion!
74.
If you increase the pressure of a constant volume of gas, what will happen to the temperature?
a)
Increase
b)
Decrease
c)
Stay the same
d)
It will Blow Up
75.
Which container will have lower pressure?
a)
left
b)
right
c)
they both have the same pressure
76.
Which model of matter is most likely a liquid? 
a)
A
b)
B
c)
C
77.
If a balloon is cooled what will happen to the volume?
a)
Volume will increase
b)
Volume will decrease
c)
Volume will not change
78.
Which state of matter has molecules that slide past each other but stay close together? They do not form a regular pattern.
a)
solid
b)
liquid
c)
gas
79.
Which description best matches this particle model?
a)
Closely packed and can't move a lot. 
b)
Particles are close together but can move a little. 
c)
Particles have lots of energy and can move around. 
80.
Which description best matches this particle model?
a)
Closely packed and can't move a lot. 
b)
Particles are close together but can move a little. 
c)
Particles have lots of energy and can move around. 
81.

Evaporation and condensation are both types of vaporization.

a)

True

b)

False

82.

The temperature at which a liquid turns to a gas is called the _____ point.

a)

boiling

b)

freezing

c)

amorphous

d)

crystalline

83.

The temperature at which liquid turns to a gas is called the boiling point.

a)

True

b)

False

84.

Vaporization is the reverse of condensation.

a)

True

b)

False

85.

Sublimation and boiling both happen at the surface of the substance.

a)

True

b)

False

86.

A puddle dries up by the process of _____.

a)

evaporation

b)

melting

c)

freezing

d)

condensation

87.

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

a)

True

b)

False

88.

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

a)

a gas

b)

a liquid

c)

a solid

d)

an amorphous solid

89.

When you see fog or clouds, you are seeing water in the ______ state.

a)

Liquid

b)

Gas

c)

Solid

90.

Boiling is the reverse of freezing.

a)

True

b)

False

91.

Water particles in gas coming off of a pan of boiling water are moving slower than the particles of the water in the pan.

a)

true

b)

false

92.

When you open a solid room air freshener, the solid slowly loses mass and volume as the solid turns into a gas as the room freshener's particles escape and mix with the air in the room. This process is known as ______.

a)

Sublimation

b)

boiling

c)

freezing

d)

condensation

93.

The process that makes ice cubes shrink as they sit in a freezer is called ____.

a)

sublimation

b)

condensation

c)

evaporation

d)

personification

94.

Is the substance gaining or losing energy?

a)

Gaining

b)

Losing

95.
At what temperature is this substance melting?
a)
50C
b)
100C
c)
0C
96.

Emerson places a beaker of water on a hotplate and turns the hotplate on. The temperature in the room is 25 ºC. After the water heats to 75 ºC, she adds pieces of ice to the beaker.


Which of the following describes a transfer of heat energy that occurs during this experiment?

a)

from the air to the water

b)

from the ice to the beaker

c)

from the water to the ice

d)

from the water to the hotplate

97.

Joe places two solid objects in contact with each other. Which property determines the direction of the flow of heat between the two objects?

a)

material of the objects

b)

volume of objects

c)

density of objects

d)

temperature of objects

98.

How does heat transfer when you hold an ice cube in your hand?

a)

from the cold ice cube to your warm hand

b)

the cold ice cube makes your hand cold

c)

from your warm hand to the cold ice cube

d)

very carefully

99.

Which description defines heat?

a)

total thermal energy of an object or substance

b)

change in the temperature of a substance in degrees Celsius

c)

energy transferred between objects at different temperatures

d)

average kinetic energy of the particles that make up a substance

100.

If two objects have different temperatures, heat will flow from the warmer object to the cooler one UNTIL ____________

a)

one reaches a temperature of zero

b)

they both have an equal temperature

c)

one runs out of energy

101.
What is the formula for density?
a)
density = mass x volume
b)
density = mass / volume
c)
density = mass + volume
d)
density = mass - volume
102.
Frank has an eraser. It has a mass of 4g, and a volume of 2cm3. What is its density?
a)
8 g/cm3
b)
2 g/cm3
c)
1/2 g/cm3
d)
24 g/cm3
103.
Why do some substances float on water?
a)
they are warmer than water
b)
they are cooler than water
c)
they are more dense than water
d)
they are less dense than water
104.
What units are used to measure mass?
a)
g
b)
cm3
c)
g/cm3
d)
cm3/g
105.
True or False:  The density of a specific type of material never changes.  
a)
True
b)
False
106.

Which box has a higher density?

a)

A

b)

B

c)

They are the same

107.
A piece of copper has a mass of 89g and a volume of 10 cm3.  What would be the density of the copper?
a)
0.89 g/cm3
b)
89 g/cm3
c)
8.9 g/cm3
d)
890 g/cm3
108.
How does heat flow?
a)
Always from cold to warm
b)
Always from warm to cold
c)
Both warm to cold & cold to warm
d)
It depends on the temperature
109.

The specific heat(c) of copper is 0.39 J/g °C. The 20 g chunk of copper is heated from 30˚C to 98˚C. It absorbed 100 Joules.

Which is the change in ∆T?

a)

30˚C

b)

98˚C

c)

68˚C

d)

100 J

110.

The specific heat(c) of copper is 0.39 J/g °C. The 20 g chunk of copper is heated from 30˚C to 98˚C. It absorbed 100 Joules.

Which is the amount of heat in this situation?

a)

0.39 J/g˚C

b)

20 g

c)

100 J

d)

68˚C

111.
20 g of water. specific heat of water is 4.18 J/x°C.  temperature changes from 25° C to 20° Chow much heat energy (Q) moves from the water to the surroundings?
a)
418 Joules
b)
209 J
c)
83 J
d)
4.18 J