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Semester 1 final review

Total questions: 58

Worksheet time: 1hrs 15mins

Name
Class
Date
1.
A series of steps used by scientists to solve a problem or answer a question. 
a)
scientific method
b)
recipe
c)
data collection
d)
metric system
2.
A testable explanation to a problem that has not yet been tested. 
a)
data
b)
theory
c)
hypothesis
d)
fact
3.
Explaining the color of a chemical would be what kind of observation?
a)
Qualitative 
b)
Quanitative
4.
What is the part of the experiment that is left alone or “natural", and is used to compare back to?
a)
Independent Variable
b)
Dependent Variable
c)
Control Group
d)
Experimental Group 
5.
This is the group that we will compare our experimental group to. This group stays "normal."
a)
Control Group
b)
Experimental Group
c)
 Normal Group
d)
Weird Group
6.
This is the group that is affected by the independent variable or the group that is changed.
a)
Control Group
b)
Experimental Group
c)
Changed Group
d)
Cool Group
7.
Is the phrase an inference, qualitative observation, or a quantitative observation? 
She had six fingers.
a)
Inference
b)
Qualitative 
c)
Quantitative
8.
How many significant figures does the following number have: 0.002040
a)
6
b)
4
c)
3
d)
2
9.
How many significant figures does the following number have: 100.00210
a)
7
b)
5
c)
10
d)
8
10.
How many sig figs are there?
100.00
a)
1
b)
3
c)
4
d)
5
11.
How many sig figs are there?
100000000
a)
1
b)
9
c)
10
12.
How many sig figs are there?
4004
a)
1
b)
2
c)
3
d)
4
13.
Calculate 0.020 cm x 50 cm x 11.1 cm and give your answer with the correct number of significant figures.
a)
10 cm3
b)
11.1 cm3
c)
11 cm3
d)
11. cm3
14.
Calculate 923 g ÷ 20312 cm3 and give your answer with the appropriate number of significant figures.
a)
0.04 g/cm3
b)
0.045 g/cm3
c)
0.0454 g/cm3
d)
4 x 10-2 g/cm3
15.
Round 1047.78 to three sig figs
a)
104
b)
105
c)
1050
d)
1050.00
16.

Solve. Round using SigFig math rules.

12.5 mL + 20.05 mL + 2.69 mL

a)

35 mL

b)

35.2 mL

c)

35.24 mL

d)

35.240 mL

17.
How many Significant Figures in the number below?
4.56 x 103
a)
5
b)
4
c)
6
d)
3
18.
Calculate 345.009 g - 23.00 g and give your answer with the correct number of significant figures.
a)
322.01 g
b)
322 g
c)
322.009 g
d)
322.0
19.

Write the following numbers (and round if necessary) to 3 significant figures: 1,234,000,000

a)

1.234 x 109

b)

1.23 x 108

c)

1.23 x 1010

d)

1.23 x 109

20.

0.0095678212

a)

9.57 x 10-2

b)

9.57 x 100

c)

9.57 x 10-3

d)

9.57 x 104

21.

Write the following numbers (and round if necessary) to 3 significant figures. 235,755,000,000

a)

2.35 x 1011

b)

2.358 x 1010

c)

2.36 x 1011

d)

2.358 x 1011

22.

Write the following numbers (and round if necessary) to 3 significant figures. 0.0000006563

a)

6.56 x 10-6

b)

6.56 x 10-7

c)

6.56 x 10-8

d)

6.56 x 10-9

23.
How would you write 0.0005 in scientific notation?
a)
50 x 105
b)
5 x 10-4
c)
5 x 103
d)
0.5 x 103
24.

Which number is expressed in scientific notation?

a)

0.75 x 10-3

b)

6 x 53

c)

21.3 x 10-1

d)

8.03 x 10-6

25.
When a substance melts, the kinetic energy _____________.
a)
decreases
b)
stays the same
c)
increases
d)
decreases then increases
26.
What is the phase change of a solid to a liquid?
a)
freezing
b)
melting
c)
boiling
d)
condensation
27.
2. A change of state from a liquid to a solid is called....
a)
Melting
b)
Freezing
c)
Evaporation
28.
5. What is it called when a solid turns directly into a gas?
a)
Sublimation
b)
Condensation
c)
Liquid
29.
Change from gas to liquid...
a)
condensation
b)
evaporation
c)
expansion
d)
movement
30.
change from liquid to gas is called....
a)
expansion
b)
evaporation
c)
condensation
d)
sublimation
31.
All changes in the state of matter of a substance requires
a)
vibration
b)
water
c)
permission
d)
energy
32.
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
33.
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
34.
The phase change from water vapor to liquid water is known as...
a)
evaporation
b)
precipitation
c)
condensation
d)
sublimation
35.
Boiling is ...
a)
liquid to gas
b)
gas to solid
c)
gas to liquid
d)
solid to liquid
36.

Which SI unit is used to measure mass?

a)

s

b)

m

c)

kg

d)

Pa

37.

Which SI unit is used to measure length?

a)

mol

b)

m

c)

kg

d)

m2

38.
Convert 6.52 kg to grams
a)
6520 g
b)
652 g
c)
65.2 g
d)
0.652 g
39.

how many mL in 4 liters?

a)

4,000 mL

b)

400 mL

c)

40 mL

d)

4 mL

40.
Convert 4 m to cm
a)
40 cm
b)
400 cm
c)
0.4 cm
d)
0.04 cm
41.
Convert 3 kg to grams
a)
3000 g
b)
300 g
c)
30 g
d)
0.3 g
42.
Convert 140 cm to m
a)
14 m
b)
0.14 m
c)
1.4 m
d)
1400 m
43.
Convert 4.65 m to cm
a)
46.5 cm
b)
0.465 cm
c)
4650 cm
d)
465 cm
44.
heat always travels from _____ to ______ objects
a)
hot to cold
b)
cold to hot
c)
cold to cold
d)
hot to hot
45.

The condition where two substances in physical contact with each other exchange no heat energy. They are said to be the same temperature.

a)

Thermal Energy

b)

Cooler to Warmer

c)

Energy Transfer

d)

Thermal Equilibrium

46.
High temperature is connected to:
a)
Low kinetic energy.
b)
High kinetic energy.
c)
Zero net energy.
d)
Equal kinetic energies.
47.
The unit Joules is for ___________
a)
heat energy
b)
temperature
c)
specific heat
48.
A great conductor of energy is:
a)
wood
b)
plastic
c)
metal
d)
cloth
49.
What is the BEST example of a conductor? 
a)
A wooden block
b)
A ceramic mug
c)
A glass cup
d)
A metal bowl
50.
A jacket is a good example of an . . .
a)
Insulator
b)
Investigator
c)
Insider
d)
Interrogator
51.
Which is NOT an insulator.
a)
Wool
b)
Plastic
c)
Copper
d)
Glass
52.
The movement of thermal energy from a warmer object to a cooler object is called:
a)
heat
b)
temperature
c)
motion
d)
momentum
53.
The Law of Conservation of Energy states:
a)
Energy can created or destroyed but not transformed 
b)
Energy cannot be created or destroyed, it can only transformed
c)
Energy can't be created, destroyed or transformed
54.

Observe the diagram. Which statement is true about the kinetic energy of the molecules in the containers?

a)

The molecules are moving faster in Diagram A

b)

The molecules are moving slower in Diagram A

c)

The molecules are moving at the same rate in both diagrams

55.

Particles at a higher temperature, move _____________ than those at a lower temperature.

a)

faster

b)

slower

56.
Number 2 represents a ________
a)
solid
b)
liquid
c)
gas
d)
plasma
57.
What is the volume of the rock? The water level is displaced from 20 mL to 23 mL with the rock.
a)
3 mL
b)
23 mL
c)
20 mL
d)
43 mL
58.
Which liquid has the greatest density?
a)
lamp oil
b)
karo syrup
c)
water
d)
honey

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