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EL Physical science midterm exam review part 1

Total questions: 78

Worksheet time: 2hrs 4mins

Name
Class
Date
1.

The base measurement for mass is...

a)

kilogram

b)

liters

c)

grams

d)

meters

2.
240 cm = ___________ m
a)
2400
b)
24
c)
2.4
d)
0.24
3.
1000 m = ___________ km
a)
100
b)
10
c)
1
d)
0.1
4.
15.6 L = ___________ mL
a)
15,600
b)
156,000
c)
1,560,000
d)
15,600,000
5.
 330 cm = ___________ m
a)
3,300
b)
33
c)
3.3
d)
0.33
6.
1000 grams = _____ kilograms
a)
0.0001
b)
1,000,000
c)
10
d)
1
7.
Convert 5 cm to mm:
a)
5,000mm
b)
0.5 mm
c)
0.05 mm
d)
50 mm
8.
Is 20 g greater than, less than, or equal to 2 kg?
a)
greater than
b)
less than
c)
equal to
9.

900 cm ____ 9000 mm

a)

<

b)

=

c)

>

10.
Which unit is a a measure of volume?
a)
meters
b)
grams
c)
inches
d)
liters
11.

How many significant figures are there in 1225?

a)

1

b)

2

c)

3

d)

4

12.

How many significant figures are in there in 1.0027?

a)

2

b)

3

c)

4

d)

5

13.

How many significant figures are there in 0.024574?

a)

0

b)

3

c)

5

d)

7

14.

How many significant figures are there in 0.024507400?

a)

5

b)

6

c)

7

d)

8

15.

What is the maximum number of significant figures in 2000?

a)

1

b)

2

c)

3

d)

4

16.
How many estimated digits should there be when reading a measurement from a piece of lab equipment?
a)
0
b)
1
c)
2
d)
3
17.

Which of the following choices best represents the length reading from the metric ruler pictured?

a)

87 mm

b)

87.4 mm

c)

87.40 mm

d)

87.400 mm

18.

Which of the following choices best represents the length reading from the metric ruler pictured?

a)

0.8 cm

b)

0.80 cm

c)

0.800 cm

d)

8 cm

19.

Which of the following choices best represents the volume reading from the graduated cylinder pictured?

a)

61 mL

b)

61.5 mL

c)

67 mL

d)

67.0 mL

20.

Read the graduated cylinder

a)

76.0

b)

76.15

c)

71.9

21.

Name the lab equipment shown in the picture

a)

graduated cylinder

b)

beaker

c)

flask

d)

test tube

22.

G represents which of the following measurements?

a)

11.98 cm

b)

12 mm

c)

12.0 cm

d)

11.9 mm

23.

What is the measurement on the graduated cylinder to the correct number of significant digits?

a)

6.300 mL

b)

6.5 mL

c)

6.32 mL

d)

6.60 mL

24.

How much liquid is in the graduated cylinder?

a)

12 mL

b)

12.0 L

c)

10.2 mL

d)

11.8 mL

25.

What is Science?

a)

A series of procedures to help you solve problems.

b)

A way to find out what is wrong in this world.

c)

An organized way of studying the natural world and finding solutions to common problems.

d)

The way scientists make up general rules.

26.

Scientists design _____________________ to test ideas, theories, and hypothesis about the world around them.

a)

experiments

b)

observations

c)

tests

d)

fairs

27.

facts or information that can be used to analyze, discuss or calculate something.

a)

conclusion

b)

data

c)

experiment

28.

a judgment that you form after considering all the evidence.

a)

conclusion

b)

data

c)

experiment

29.

a test or procedure done for the purpose of learning or proving something.

a)

conclusion

b)

data

c)

experiment

30.

Scientist is ....

a)

to find the size or weight of something.

b)

a person who studies or is trained in one or more sciences.

c)

the study of the natural world through observations and experiments.

31.
What tool do scientists use to measure volume of a liquid?
a)
graduated cylinder
b)
meter stick
c)
spring scale
d)
triple-beam balance
32.
What do we use a meter stick to measure?
a)
volume
b)
distance/length
c)
mass
d)
weight
33.

A combination of substances that can be physically separated from one another

a)

mixtures

b)

compound

c)

element

d)

molecule

34.

a substance in which the parts are clearly different shapes and colors; different throughout

a)

mixture

b)

homogeneous

c)

heterogeneous

d)

element

35.

a substance in which all of the parts are the same throughout

a)

homogeneous

b)

element

c)

heterogeneous

d)

pure substance

36.
a)
element
b)
compound
c)
mixture of elements
d)
mixture of compounds and elements
37.

Sugar ( C12 H22 O11 ) + Water ( H2 O )

a)

 Homogeneous 

b)

 Element 

c)

 Compound 

d)

 Heterogeneous 

38.

 Soil 

a)

 Homogeneous 

b)

 Heterogeneous 

c)

 Pure Substance

d)

Element

39.

 Sugar 

a)

 Homogeneous 

 

b)

 Heterogeneous 

c)

 Compound 

d)

Element

40.

 Table Salt (NaCl) 

a)

 Heterogeneous 

b)

 Homogeneous 

c)

 Compound 

d)

 Element 

41.

 Copper 

a)

 Homogeneous 

b)

 Heterogeneous 

c)

Compound

d)

Element

42.

Ice water

a)

 Homogeneous 

b)

 Heterogeneous 

c)

 Element 

d)

 Compound

43.

Pure Substances: matter that is always made up of the same combination of atoms.

Elements and compounds can both be considered pure substances.

a)

True

b)

False

44.

Heterogeneous: A mixture in which the substances that make up the mixture are not evenly mixed.

a)

True

b)

False

45.

_________ is a substance made of atoms from two or more elements.

a)

Compound

b)
Composition
c)

Heterogeneous

d)

Homogeneous

46.

_________ is the smallest particle of an element that can exist.

a)

Atom

b)

Evaporate

c)

Gas

d)

Liquid

47.

_________ is to turn from liquid to vapor or gas.

a)

Melt

b)

Evaporate

c)

Gas

d)

Liquid

48.

_________ is a solid, to become liquid.

a)

Melt

b)

Evaporate

c)

Solid

d)

Liquid

49.

_________ is a measurement of how hot or cold something is on an established scale.

a)

Energy

b)

Temperature

c)

Matter

d)

State

50.

_________ is a condition or phase of matter.

a)

Energy

b)

Temperature

c)

Matter

d)

State

51.

_______ can be separated by physical means.

a)

An element

b)

A compound

c)

Pure substances

d)

Mixtures

52.

Which of the following is an example of an element?

a)

A

b)

B

c)

C

d)

D

53.

Which of the following is an example of a mixture?

a)

A

b)

B

c)

C

d)

D

54.

Which of the following is an example of a compound?

a)

A

b)

B

c)

C

d)

D

55.

What kind of matter is this?

a)

Element

b)

Compound

c)

Mixture

56.

What kind of matter is this?

a)

Element

b)

Compound

c)

Mixture

57.

What kind of matter is this?

a)

Element

b)

Compound

c)

Mixture

58.

What kind of matter is this?

a)

Element

b)

Compound

c)

Mixture

59.
The positive particles of an atom are 
a)
electrons 
b)
positrons 
c)
neutrons 
d)
protons 
60.
The central region of an atom where neutrons and protons are located is the __________________.
a)
nucleus 
b)
electron cloud
c)
core 
d)
center 
61.
Particles in an atom that are neutral and have no charge are 
a)
negatrons 
b)
electrons 
c)
neutrons 
d)
protons 
62.

How many neutrons would Fe-59 have?

a)
56
b)
26
c)
30
d)
33
63.

How many protons does S-32 have?

a)
30
b)
16
c)
12
d)
15
64.

How many neutrons does the isotope of Na-23 have?

a)

23

b)

10

c)

11

d)

12

65.
How many protons does this isotope of titanium have?
a)
48
b)
22
c)
26
d)
70
66.

What quantities vary between isotopes of an element?

a)

protons, electrons, and atomic mass

b)

protons, electrons, and atomic number

c)

neutrons and electrons

d)

neutrons and mass number

67.

If the number of protons in an atom changes you make a(n) __________________.

a)

ion

b)

isotope

c)

new element

d)

isomer

68.

If the number of neutrons in an atom changes you make a(n) __________________.

a)

ion

b)

isotope

c)

new element

d)

isomer

69.

An atom with atomic number 3 would have how many protons?

a)
6
b)
12
c)
3
d)
cannot be determined 
70.

What is the term for the number of protons plus neutrons in an atom?

a)

Atomic number

b)

Atomic mass

c)

Isotope number

d)

Valency

71.

An atom that has a neutral charge has 13 protons how many electrons does it have?

a)

11

b)

0

c)

13

d)

26

72.
What are the 3 subatomic particles that make-up the atom?
a)
protons, neutrons, and isotopes
b)
neutrons, isotopes, and electrons
c)
positives, negatives, and electrons
d)
protons, neutrons, and electrons
73.

An atom has a mass number of 127 and has 74 neutrons. Find the number of protons to determine what element this is.

a)

iodine

b)

Vanadium

c)

Zinc

74.

What is the mass of an atom that has 4 protons, 6 neutrons, and 4 electrons?

a)

4 amu

b)

6 amu

c)

10 amu

75.
Which letter represents a proton?
a)
A
b)
B
c)
C
d)
D
76.
Which letter represents a neutron?
a)
A
b)
B
c)
C
d)
D
77.
Which letter represents an electron?
a)
A
b)
B
c)
C
d)
D
78.
How many protons does Pb-209 have?
a)
127
b)
209
c)
82
d)
291

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