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Physical Science > Midterm Exam > Flashcards

Midterm Exam Flashcards

1
Q

Where does metamorphic rock come from?

A

Other rock that has been changed by heat and pressure

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2
Q

True or False: The ozone hole is seasonal.

A

True

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3
Q

A(n) __________ is two or more atoms linked together to make a substance with unique properties.

A

molecule

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4
Q

What is insolation?

A

Incoming solar radiation

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5
Q

Which of these statements is true about mass?

a) Gravity can change it
b) Altitude can change it
c) Location can change it
d) It is constant

A

It is constant

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6
Q

True or False: Most airplanes fly in the mesosphere.

A

False

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7
Q

The largest source of liquid freshwater is -

A

Groundwater

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8
Q

Which is most likely a status cloud?

A

A flat, layered cloud that covers the sky

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9
Q

Which of the following is NOT a mixture?

e) salad
f) trail mix
g) oil and water
h) lemonade

A

lemonade

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10
Q

Why don’t salts build up rapidly in the ocean?

A

Many salts are use by ocean life.

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11
Q

Some animals can walk on water because of its __________.

A

surface tension

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12
Q

If you want to study weather, which region of the atmosphere would you study?

A

Troposphere

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13
Q

What is most likely a lenticular cloud?

A

A cloud that forms over a mountain.

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14
Q

True or False: 97% of Earth’s water comes from the lakes.

A

False

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15
Q

True or False: All air pollution is a result of human activity.

A

False

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16
Q

If a substance will not dissolve in water, will it dissolve in vegetable oil which is a non-polar substance?

A

Yes, it will likely dissolve in vegetable oil.

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17
Q

True or False: The concentration of air pollutants is higher today than it was 25 years ago.

A

False

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18
Q

True or False: The greenhouse effect is necessary for life to exist on Earth.

A

True

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19
Q

True or False: Longitude is measured beginning at the equator.

A

False

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20
Q

If a region of the earth is on the boundary between two plates, what king of mountains do you expect to find there?

A

fault block mountains

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21
Q

The outermost layer of the Earth is called the __________.

A

Crust

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22
Q

Which unit is correct to express mass?

A

both kg and kilogram

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23
Q

What instrument do we use to measure atmospheric pressure?

A

Barometer

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24
Q

A(n) __________ is the smallest stable unit of matter in Creation.

A

atom

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25
Q

What does ATM the abbreviation of in relation to air pressure.

A

unit of atmosphere

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26
Q

True or False: Chemical bonds link atoms together to form molecules.

A

True

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27
Q

A thunderstorm cell is raining and there is no updraft. In what stage is the cell?

A

the dissipation stage

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28
Q

We exhale about 4% carbon dioxide.

A

True

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29
Q

In a Solution, the item being dissolved is -

A

the solute

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30
Q

You are reading a scientist’s notes and you notice a measurement that is listed as “34.6 kilograms.” What does this measurement represent?

A

Mass

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31
Q

Humans are responsible for 80% of ozone destroying chlorine. Why?

A

Because the chlorine we create can survive the trip into the atmosphere.

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32
Q

True or False: Scientists have drilled in to the Earth’s outer core in order to learn about Earth’s interior.

A

False

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33
Q

True or FalseThe dirt or dust particles needed for clouds to form are called cloud condensation nuclei.

A

True

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34
Q

Which of these has the shortest average residence time?

i) Swamps
j) Lakes
k) Soil moisture
l) Glaciers & Icebergs

A

Soil Moisture

35
Q

True or False: The earth has an ozone layer that keeps out all of the sun’s rays and protects us.

36
Q

What are the factors that affect wind?

m) Pressure gradient
n) Coriolis effect
o) Friction
p) All of the above

A

All of the above

37
Q

Why does the percentage of nitrogen in the air that we breathe in decrease when we breathe out?

A

Exhaled air has more molecules so the concentration of nitrogen decreases.

38
Q

True or False: When you heat up a sustance, you slow down its molecules.

39
Q

True or False: Plastic rock is a rock that behaves like something between a gas and a liquid.

40
Q

An object’s volume is 0.35 kL. What is its volume in liters?

41
Q

Choose the statement that is TRUE.

q) Scientists have actually seen atoms with the naked eye.
r) Everything is made of atoms is a fact.
s) Scientists can see atoms through a special microscope.
t) We have evidence to support the theory that everything is made of atoms.

A

We have evidence to support the theory that everything is made of atoms.

42
Q

True or False: A substance that conducts electricity really well is called an insulator.

43
Q

True or False: Most mereorites burn up in the stratosphere.

44
Q

True or False: Rain, sleet, snow, drizzle, and hail are all forms of precipitation.

45
Q

True or False: The calm area in the middle of a hurricane is called the mouth.

46
Q

True or False: The earth is closest to the sun at perihelion.

47
Q

Manipulated Variable -

A

something that is changed by a scientist

48
Q

True or False: The dynamo theory is more scientifically valid than the rapid decay theory.

49
Q

What water source has the greatest residence time?

50
Q

A large body of air with relativity uniform pressure, temperature, and humidity is called __________.

A

An air mass

51
Q

True or False: An updraft is a current of rising air.

52
Q

Airborne lead is no longer a problem because:

A

Cars no longer run on leaded gasoline.

53
Q

Which of the following is NOT a solution?

u) soda
v) air
w) trail mix
x) saltwater

54
Q

True or False: Lightning is caused by a buildup of electrical charges.

55
Q

The rock that composes the earth’s crust is mixture of sedimentary rock, igneous rock and __________.

A

Metamorpic rock

56
Q

True or False: The eruption of volcanoes causes pollution.

57
Q

True or False: All scientists are unbiased in the way they draw conclusions

58
Q

What percent oxygen is the air we breathe?

59
Q

What does the saltiness of the oceans tell us about the age of the Earth?

A

It is probably less than a million years old

60
Q

Heavy clouds that often bring precipitation are given the prefix __________.

61
Q

True or False: Jet streams blow from east to west.

62
Q

A pitcher of juice can hold 2500 mL. What is its volume in liters?

63
Q

True or False: No matter where you are on this planet, the air you breathe probably contains some moisture.

64
Q 
What is needed for clouds to form?
y) Particles in the air
z) Moisture in the air
A) Adiabatic cooling
B) All of the above
A

All of the above

65
Q

True or False: Hydrogen bonds link molecules together.

66
Q

A molecule that has slight positive and negative charges due to an imbalance in the way electrons are shared is a __________.

A

polar molecule

67
Q

What makes up the majority of the air we exhale?

68
Q

True or False: Narrow bands of high-speed winds that circle the earth are called jet streams.

69
Q

Complete this phrase: Mass is __________, but weight can __________.

A

constant, vary

70
Q

When you take a breath what makes up the majority of your breath?

71
Q

True or False: When looking at a graph, it is extremely important to check the scale on the x and y axis so you know the range the data covers.

72
Q

True or False: Meteorologists are scientists who study weather.

73
Q

The __________ separates the stratosphere and the mesosphere.

A

stratopause

74
Q

The largest source of water on Earth is -

75
Q

True or False: The ozone hole is when ozone seeps down to ground level.

76
Q

True or False: Chemical reactions sometimes turn rock back into sediment.

77
Q

The upper part of the mantle composed of solid rock and the earth’s crust is called:

A

Lithosphere

78
Q

The earth is approximately how old according to the rapid-decay theory?

A

Ten thousand years

79
Q

Carbon monoxide has decreased because:

A

devices called catalytic converters are used.

80
Q

What is weight?

A

The measure of the force of gravity on an object

81
Q

True or False: Hydrogen bonds are difficult to break.

82
Q

Chemical reactions that supply energy for our bodies are:

A

combustion reactions

83
Q

What is most likely a cumulus cloud?

A

A fluffy cloud

84
Q

The Aurora Borealis happen in which layer of the atmosphere?

A

Ionosphere

Physical Science (12 decks)

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