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Human Impact, Forces, Energy and Waves - Review Questions

Total questions: 116

Worksheet time: 2hrs 49mins

Name
Class
Date
1.

What type of pollution is this?

a)

Visual

b)

Air

c)

Noise

d)

Water

2.

What type of pollution is this?

a)

Visual

b)

Air

c)

Noise

d)

Water

3.

What type of pollution is this?

a)

Visual

b)

Air

c)

Noise

d)

Water

4.

What type of pollution is this?

a)

Visual

b)

Air

c)

Noise

d)

Water

5.

What type of pollution is this?

a)

Visual

b)

Air

c)

Noise

d)

Water

6.
Oil spillage in water is what type of pollution?
a)
Land Pollution
b)
Water Pollution
c)
Noise Pollution
7.
Which pollution is caused by burning of fossil fuels such as cars and airplanes?
a)
Air
b)
Noise
c)
Land
8.

Which of the following is a source of air pollution?

a)

Difficulty in breathing

b)

Factories

c)

Eye irritation

d)

Drinking water

9.
This picture shows people walking through a highly-polluted city in China. From what type of pollution are they protecting themselves based on what they are wearing?

a)
air pollution
b)
water pollution
c)
land pollution
d)
noise pollution
10.

Pollution _________________________.

a)

is harmful materials put into the environment

b)

is found in air, water, and land

c)

effects plants, animals, and people

d)

All of the above

11.

Sludge run off from factories and industries is an example of _______ pollution.

a)

air

b)

land

c)

water

12.

Water pollution occurs when:

a)

Harmful substances enter a water supply

b)

Industries dispose of waste safely and correctly.

c)

Industries cut costs with waste disposal.

d)

None of the above.

13.

1.What does the picture represent?

a)

Lines of latitude

b)

Greenhouse effect

c)

Climatic zones

d)

Weather patterns

14.

Which two are likely to result from global warming?

a)

increase in surface temperatures

b)

reduction in greenhouse gases

c)

rise in ocean levels

d)

decrease in air pollution

15.

Why are forests important in reducing climate change? Trees ____

a)

use Carbon Dioxide to make food

b)

provide building materials

c)

are an important food source

d)

reflect all sunlight away from the Earth

16.

Which TWO activities produce the greatest amount of greenhouse gases?

a)

Deforestation

b)

Electricity generation

c)

Transportation

d)

Landfills

17.
What happens to the temperature if more greenhouse gases are released into the atmosphere?
a)
Temperature goes up
b)
Temperature goes down
18.
Melting of glaciers and polar ice caps....
a)
will result in cooler temperatures in the Arctic
b)
will result in sea-levels rising
c)
Will have no effect on ecosystems
d)
None of the above
19.
 Which of the following activities contributes the most to carbon emissions globally?
a)
Deforestation
b)
Agriculture
c)
Burning fossil fuels
d)
Respiration
20.
What is the greenhouse effect?
a)
The warming of a planet due to trapped radiation.
b)
The cooling of Earth due to air pollution.
c)
The heating of a solid, such as a rock.
21.

The graph shows us that

a)

the earth temperature is always increasing

b)

the earth's temperature has steadily increased since 1900

c)

the earth's temperature is steadily rising since the 1960s

d)

the earth's temperature decreased during the 19th and 20th centuries

22.

Cutting down large forests (deforestation) can result in:

a)

little to no changes

b)

more homes for animals

c)

less plants to absorb carbon dioxide, a greenhouse gas

23.
Burning fossil fuels is one of the main causes for global warming.
a)
True
b)
False
24.
What is the mixture of gases surrounding the Earth called?
a)
carbon
b)
concentration
c)
atmosphere
d)
emissions
25.
The main human activity that releases greenhouse gases is
a)
using bottled water
b)
burning fossil fuels
c)
texting on cellphones
d)
eating meat
26.

Why are too many greenhouse gases bad for the environment?

a)

They cause trees to die.

b)

They release heat and will be the cause of the next ice age.

c)

They trap heat in our atmosphere causing the planet to warm up.

d)

They are fossil fuels which pollute our environment.

27.

Which one is not a fossil source?

a)

petrol

b)

sun

c)

coal

d)

natural gas

28.

Solar Power is a __________ energy resource.

a)

Renewable

b)

Non renewable

29.

__________ is an energy resource that WILL run out in the next several hundred years.

a)

Renewable Energy

b)

Fossil Fuels

c)

Nonrenewable Energy

30.

__________ is an energy resource that WILL NOT run out in the next several hundred years.

a)

Fossil Fuel

b)

Nonrenewable Energy

c)

Renewable Energy

31.

Wind is a __________ energy resource.

a)

Non renewable

b)

Renewable

32.

Non-renewable or Renewable: Water

a)

Renewable

b)

Non renewable

33.

Why are fossil fuels like coal, oil, and natural gas called nonrenewable resources?

a)

They can be made in factories.

b)

They can be recycled

c)

They cannot be easily replaced

d)

They can never be replaced

34.

Which of these is a practice that sustains or conserves natural resources?

a)

Leaving the TV on all day

b)

Leaving the light switch on all day

c)

Burning newspapers

d)

Recycling cans

35.

What are examples of fossil fuels?

a)

Coal

b)

Water

c)

Oil (petroleum)

d)

Natural Gas

e)

Solar energy

36.

Sunlight, water, and wind are examples of inexhaustible forms of energy. What does inexhaustible mean?

a)

We will run out at any minute

b)

We will run out in 100 years

c)

We will never run out

d)

We will run out in 20 years

37.

Examples of renewable energy resources include –

a)

Solar energy

b)

Nuclear power

c)

Wind energy

d)

Hydro power

e)

Geothermal energy

38.

Solar energy is energy from the....

a)

Ocean

b)

Air

c)

Sun

d)

Ground

39.

Energy that uses heat that comes from within the Earth is called

a)

Geophysical

b)

Geography

c)

Geothermal

d)

Geographic

40.

What is the net force?

a)

3 N

b)

3 N, right

c)

17 N, right

d)

3 N, left

41.
Who wins the tug of war with what net force?
a)
The person on the left with 20 N
b)
The person on the left with 80 N
c)
The people on the right with 20 N
d)
The people on the right with 100 N
42.
What is the net force?
a)
20 N 
b)
0 N 
c)
400 N 
d)
40 N 
43.

What is the unit to MEASURE force?

a)

Kilogram

b)

Meter

c)

Pounds

d)

Newton

44.

A ____________ is a push or a pull on an object.

a)

friction

b)

force

c)

magnet

d)

gravity

45.
If these teams are pulling with the same amount of force what will happen?
a)
The boy in blue will win.
b)
They will not move at all.
c)
The boy in red will win.
d)
Both will fall down.
46.
Balanced or unbalanced?
a)
balanced
b)
unbalanced
47.
Calculate the Net Force. 
a)
60N, Left 
b)
40N, Right 
c)
0N
d)
60N, Right
48.

Is this force balanced or unbalanced?

a)

Balanced

b)

Unbalanced

49.

What is the net force pulling on the cart and in which direction?

a)

3 N Right

b)

5 N Right

c)

5 N Left

d)

8 N Left

50.

A balanced force causes an object to...

a)

Stay in place

b)

Accelerate in speed

c)

Decelerate in speed

d)

Move in a constant speed

51.

Is this force balanced or unbalanced?

a)

Balanced

b)

Unbalanced

52.

Is this force balanced or unbalanced?

a)

Balanced

b)

Unbalanced

53.

What is the net force and in what direction?

a)

10 N Right

b)

10 N Left

c)

2 N Left

d)

0 N

54.

Can an unbalanced force have a net force of 0 N?

a)

No

b)

Yes

55.

Which of the following is an example of an unbalanced force?

a)
b)
c)
d)
56.

How will this object move?

a)

The object will move to the left, as the forces are balanced.

b)

The object will move to the right, as the forces are unbalanced.

c)

The object will move to the left, as the forces are unbalanced.

d)

The object will move to the right, as the forces are balanced.

57.

In the tug of war image, if both teams are pulling with the same amount of force, what will happen?

a)

The green team will win.

b)

The blue team will win.

c)

Both teams will not move.

58.

What is energy?

a)

moving energy

b)

stored energy

c)

renewable energy

d)

The ability to do work.

59.

What is potential energy?

a)

moving energy

b)

stored energy

c)

renewable energy

d)

non renewable energy

60.

What is kinetic energy?

a)

moving energy

b)

potential energy

c)

stored energy

d)

renewable energy

61.

What is the energy transformation that occurs in an electric pencil sharpener?

a)

mechanical energy to electrical energy

b)

electrical energy to mechanical energy

c)

radiant energy to sound energy

d)

chemical energy to mechanical energy

62.

Which object shows an energy transformation from electrical to mechanical?

a)
b)
c)
d)
63.

When a car burns gasoline it creates hot air to move the pistons in the engine, which causes the car to move. What energy transformation occur from the fuel to the movement of a car?

a)

thermal energy to mechanical energy

b)

thermal energy to chemical energy to mechanical energy

c)

chemical energy to thermal energy to mechanical energy

d)

chemical energy to electrical energy

64.
Electrical Energy is transferred to _____ Energy.
a)
Thermal
b)
Solar
c)
Electrical
d)
None
65.

What type of energy transformation happens in hydro-electric power?

a)

kinetic to potential

b)

sound to mechanical

c)

chemical to electrical

d)

mechanical to electrical

66.
Energy of motion is which type of energy?
a)
Potential
b)
Kinetic
c)
Sound
d)
Gravitational
67.
What kind of energy is represented in the picture?
a)
Thermal
b)
Chemical
c)
Sound
d)
Nuclear
68.
According to the Law of Conservation of Energy, energy cannot be _________ or ____________. 
a)
destroyed, destroyed
b)
created, saved
c)
created, destroyed
d)
lost, found
69.
What kind of energy is represented in this picture?
a)
Thermal
b)
Potential
c)
Nuclear
d)
Mechanical
70.

Where is the kinetic energy the greatest?

a)

A

b)

B

c)

C

d)

D

71.

The roller coaster cart has the most kinetic energy at position-

a)

W

b)

X

c)

Y

d)

Z

72.

Which form of energy would most likely be affected by change in weather

a)

geothermal

b)

natural gas

c)

wind

d)

nuclear

73.

What type of energy is stored in batteries or food?

a)

Potential energy

b)

Thermal energy

c)

Chemical energy

d)

Mechanical energy

74.

A solar calculator has to have light in order to work. What does the radiant light energy transform into?

a)

Radiant

b)

Mechanical

c)

Potential

d)

Chemical because of the battery.

75.
According to the Law of Conservation of Energy, energy cannot be _________ or ____________. 
a)
destroyed, destroyed
b)
created, saved
c)
created, destroyed
d)
lost, found
76.
Solar Energy is transferred to _____ Energy.
a)
Mechanical
b)
Solar
c)
Sound
d)
Electrical
77.

Frequency is always measured in _________

a)

kilometers

b)

Hertz

c)

centimeters

78.

the number of waves that pass a certain point.

a)

wave speed

b)

frequency

79.

This is a high frequency wave. Which part of the wave is "B"

a)

crest/peak

b)

wavelength

c)

trough

80.

Look at this wave. "A" is which part of a wave?

a)

Crest/Peak

b)

Wave Speed

c)

Resting Point

81.

Which wave has the longest wave length?

a)

top wave

b)

bottom wave

82.
Which wave in the diagram has the greatest frequency?
a)
1
b)
2
c)
3
d)
4
83.
What kind of wave is pictured below?
a)
compressional wave
b)
transverse wave
c)
sound wave
d)
mechanical wave
84.
Which type of wave is pictured here?
a)
Longitudinal
b)
Transverse
c)
Light 
d)
Electromagnetic
85.

It is the high pressure part of the wave where the particles are close together. It is part A on this picture.

a)

Compression

b)

Amplituide

c)

Rarefaction

d)

Wavelength

86.
What are the highest parts of a transverse wave called?
a)
amplitude
b)
trough
c)
resting point
d)
crest
87.

What is the red line showing?

a)

crest

b)

trough

c)

wavelength

d)

amplitude

88.

What the letter b showing?

a)

crest

b)

trough

c)

wavelength

d)

amplitude

89.

What is the letter d showing?

a)

crest

b)

trough

c)

wavelength

d)

amplitude

90.

Which wave has the longest wave length?

a)

top wave

b)

bottom wave

91.
 A wave has frequency of 50 Hz and a wavelength of 10 m. What is the speed of the wave?
a)
500 m/s
b)
50 m/s
c)
5 m/s
d)
0.5 m/s
92.
 A wave has frequency of 5 Hz and a speed of 25 m/s. What is the wavelength of the wave?
a)
25 m
b)
125 m
c)
5 m
d)
25 m/s
93.

What is the correct unit for energy?

a)

meters (m)

b)

kilogram meters per second (kg m/s)

c)

Newtons (N)

d)

Joules (J)

94.

Calculate the potential energy of a car with a mass of 2,500 kg that is on a hill 100 meters above sea level. (g = 10 Nkg-1)

a)

250,000 J

b)

2,500,000 J

c)

25,000,000 J

d)

250 J

95.

Lilly's cat ran through your yard. The cat has a mass of 5 kg. He is running at a speed of 3 m/s. What is the kinetic energy of the cat as he runs? (KE = 1/2mv2)

a)

8.5 J

b)

45 J

c)

7.5 J

d)

22.5 J

96.

Alice kicks a soccer ball with a mass of 2.1 kg. The ball leaves the ground moving 30 meters per second. What is the kinetic energy of the soccer ball? (KE = 1/2mv2)

a)

567 J

b)

900 J

c)

945 J

d)

30 J

97.

If the 0.3 kg marble was moving at 6 m/s at the bottom of the ramp, how much kinetic energy did the marble have? (KE = 1/2mv2)

a)

5.4 J

b)

1.8 J

c)

3 J

d)

6 J

98.

If the 1.2 kg basketball rolls at 3 m/s, what is it's kinetic energy? (KE = 1/2mv2)

a)

2.7

b)

5.4

c)

3.6

d)

9

99.
Energy due to motion is ____________ energy. 
a)
Potential 
b)
Energy
c)
Kinetic
d)
Friction
100.
The faster an object moves, the ________ kinetic energy it has. 
a)
more
b)
less
c)
none of the above
d)
all of the above 
101.

What is an observation?

a)

Something you measure or detect with your senses.

b)

The way you feel about something

c)

An educated guess

d)

A theory that has been disproved

102.

A scientific observation is:

a)

Based on facts

b)

based on your personal beliefs

c)

Based on opinions

d)

Based on a rumor you heard in the bathroom

103.

What is the scientific method?

a)

A systematic procedure for how to conduct a scientific experiment

b)

The process of solving a problem

c)

A way of making non-scientific observations

d)

A way to summarize findings from multiple investigations

104.

What is a hypothesis?

a)

An educated prediction or answer to a testable question

b)

A random guess

c)

An observation based on feelings or emotions

d)
105.

What is the best way to collect and record data?

a)

In a data table

b)

On post-it notes

c)

On scrap paper

d)

interpretive dance

106.

A series of steps designed to help you solve problems and answer questions is

a)

the scientific method

b)

results

c)

observations

d)

the two step

107.

After the data is analyzed the hypothesis is stated as correct or incorrect in the __________

a)

conclusion

b)

experiment

c)

hypothesis

d)

table of contents

108.

The name of the information that you get from your experiment (you organize it into tables).

a)

observations

conclusion

b)

data

c)

variables

d)

hypothesis

109.
What step does every scientific experiment begin with?
a)
hypothesis
b)
question/problem
c)
procedures
d)
conclusion
110.
An experiment is performed on plants to see how different liquids affect plant growth. Each plant in the experiment is given a different liquid; water, apple juice, or milk. Each plant has the same amount of soil, sunlight, and listens to the same music. In this investigation, the independent variable is ...
a)
The type of plant
b)
The amount of sunlight
c)
The type of music
d)
The type of liquid
111.
Research Question: Does the type of gasoline put in a car effect how fast the car can drive. What is the independent variable?
a)
Type of gasoline
b)
which car the gas is put into
c)
how fast the car can drive
d)
how much gas is put into the car
112.
Ms. S set up an experiment to see how the mass of a ball affects the distance it rolls off a ramp. What is the dependent variable?
a)
Distance traveled by the ball
b)
Height of the ramp
c)
Mass of the ball
d)
Where the experiment took place.
113.
Ms. S set up an experiment to see how the mass of a ball affects the distance it rolls off a ramp. Identify the independent variable.
a)
Distance traveled by the ball
b)
Height of the ramp
c)
Mass of the ball
d)
Who set up the experiment (Ms. S, etc)
114.

What is the definition of an independent variable?

a)

factors that stay the same

b)

factor that is being observed

c)

factor that is being measured

d)

factor that is being changed by the scientist

115.

What is the definition of a control variable?

a)

factor that is being measured in an experiment

b)

factors that stay the same in an experiment

c)

factor that is being changed by the scientist

d)

factor that is being observed in an experiment

116.

What is the definition of a dependent variable?

a)

factor that is being measured in an experiment

b)

factors that stay the same in an experiment

c)

factor that is being changed by the scientist

d)

factor that is controled at the beginning of the experiment

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