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Worksheets

PS Unit 1 & 2 Test

Total questions: 179

Worksheet time: 2hrs 51mins

Name
Class
Date
1.
A variable whose value changes as a result of changes to other variables is a(n)
a)
independent variable.
b)
dependent variable.
c)
constant.
d)
control.
2.
A standard used to compare the results of the experiment/remains constant from experiment to experiment is a(n)
a)
constant.
b)
control.
c)
dependent variable.
d)
independent variable.
3.
It represents an idea, event, or object to help people observe or test it to better understand 
a)
variable
b)
model
c)
bias
d)
theory
4.
The general pattern of investigational procedures
a)
Scientific Method
b)
Theory
c)
Scientific Law
d)
Hypothesis
5.
A possible explanation or prediction of a problem based on observation and prior knowledge that can be tested by experimentation
a)
Conclusion
b)
Problem
c)
Hypothesis
d)
Experiment
6.

The SI base unit of length is the

a)

kilometer

b)

meter

c)

liter

d)

kilogram

7.

Units obtained by combining SI units are called

a)

conversions

b)

multiples

c)

base units

d)

derived units

8.

_________ is the mass per unit volume of a material.

a)

volume

b)

size

c)

weight

d)

density

9.
What is the SI base unit for time?
a)
hour
b)
minute
c)
second
d)
What are you talking about? 
10.
What is the SI base unit for mass?
a)
pounds
b)
grams
c)
I have no idea! 
d)
Ounces
11.

A visual display of data or information

a)

model

b)

graph

c)

photograph

d)

percentages

12.

Information collected by counting can best be displayed on a

a)

line graph

b)

circle graph

c)

bar graph

d)

stem and plot graph

13.

In a line graph, the dependent variable is plotted on the _____

a)

x-axis

b)

y-axis

14.

A type of graph that is useful for showing trends or continuous change is a _________________

a)

line graph

b)

bar graph

c)

circle graph

d)

stem and plot graph

15.

Graphs are a quick way of communicating a lot of ________ in a small space.

a)

food

b)

variables

c)

information

d)

animals

16.

Mobiles and laptops are examples of

a)

Technological objects

b)

Technological skills

c)

Technological methods

d)

Technological system

17.

Airport systems and educational platforms are examples of

a)

Technological methods

b)

Technological objects

c)

Technological systems

d)

Technological skills

18.

Printing books and production of glass are examples of

a)

Technological methods

b)

Technological skills

c)

Technological systems

d)

Technological objects

19.

Computer programming and piloting a plane are examples of

a)

Technological systems

b)

Technological objects

c)

Technological skills

d)

Technological methods

20.

Technology that uses living things or living systems is called

a)

Biotechnology

b)

Biased technology

c)

Chemotechnology

d)

Synthetic science

21.
Bill runs 400 meters to Andy's house, turns around, and runs 400 meters back home.  What is Bill's distance?
a)
0 meters
b)
400 meters
c)
800 meters
d)
1600 meters
22.
"For every action, there is an equal and opposite reaction."
a)
Newton's 1st Law
b)
Newton's 2nd Law
c)
Newton's 3rd Law
d)
Newton's 4th Law
23.
Force = Mass x Acceleration
a)
Newton's 1st Law
b)
Newton's 2nd Law
c)
Newton's 3rd Law
d)
Newton's 4th Law
24.
"An object in motion (or at rest) will to stay in motion (or at rest) until an outside force acts upon it."
a)
Newton's 1st Law
b)
Newton's 2nd Law
c)
Newton's 3rd Law
d)
Newton's 4th Law
25.
The tendency of an object to resist changes in its motion is...
a)
inertia
b)
force
c)
acceleration
d)
velocity
26.
Any push or pull on an object.
a)
force
b)
velocity 
c)
inertia
d)
momentum
27.
The force that opposes motion between two surfaces in contact with each other.
a)
inertia
b)
friction
c)
momentum
d)
gravity
28.

Which of the following is the units for acceleration?

a)

kg*m/sec/sec

b)

kg*m/sec

c)

m/sec2

d)

m/sec

29.
A Newton is a unit of...
a)
force
b)
inertia
c)
acceleration
d)
velocity
30.
When all the forces on an object are equal and opposite, & the net force is zero, that's...
a)
balanced forces
b)
unbalanced forces
c)
terminal velocity
d)
reaction forces
31.
The combination of all the forces acting on an object is the...
a)
net force
b)
action force
c)
reaction force
d)
balance force
32.
An archer pulls the bowstring back, then releases the string and the arrow flies forward. Pulling the string back is the...
a)
action force
b)
reaction force
c)
net force
d)
inertia
33.
An archer pulls the bowstring back, then releases the string and the arrow flies forward. The arrow flying forward is the...
a)
action force
b)
reaction force
c)
net force
d)
inertia
34.

A cannonball with a mass of 0.5 kg is flying at an acceleration of 10 m/sec2. What is it's force?

a)

50 Newtons

b)

5 Newtons

c)

20 Newtons

d)

9.5 Newtons

35.

A cannonball with a mass of 10 kg is flying at an acceleration of 5 m/sec2. What is it's force?

a)

50 Newtons

b)

5 Newtons

c)

20 Newtons

d)

9.5 Newtons

36.
Mass x acceleration = ?
a)
force
b)
inertia
c)
momentum
d)
velocity
37.
A 10 lb. bowling ball hits a stationary 20 lb. bowling ball. Which of the following is not true about the 2nd ball?
a)
will have unbalanced forces acting on it
b)
move twice as fast as the original ball
c)
not move unless there is enough force to overcome its inertia
d)
take on the momentum of the original ball
38.
In the picture, the vehicle will move because of...
a)
Newton's 1st Law
b)
Newton's 2nd Law
c)
Newton's 3rd Law
d)
Newton's 9th Law
39.
To compare the two pictures would require...
a)
Newton's 1st Law
b)
Newton's 2nd Law
c)
Newton's 3rd Law
d)
Newton's 11th Law
40.
An automobile you are riding in suddenly stops, but you continue to go forward.
a)
Newton's
1st
Law of Motion
b)
Newton's
2nd
Law of Motion
c)
Newton's
3rd
Law of Motion
41.
A rocket in outer space continues to move.
a)
Newton's
1st
Law of Motion
b)
Newton's
2nd
Law of Motion
c)
Newton's
3rd
Law of Motion
42.
A magician pulls a table cloth from under a table of dishes.
a)
Newton's
1st
Law of Motion
b)
Newton's
2nd
Law of Motion
c)
Newton's
3rd
Law of Motion
43.
The harder you hit a baseball, the faster it accelerates.
a)
Newton's
1st
Law of Motion
b)
Newton's
2nd
Law of Motion
c)
Newton's
3rd
Law of Motion
44.
You push against a wall and the wall is pushing back on you.
a)
Newton's
1st
Law of Motion
b)
Newton's
2nd
Law of Motion
c)
Newton's
3rd
Law of Motion
45.
The acceleration of a 4 kg bowling ball will be greater than the acceleration of a 6 kg bowling ball if the same force is applied to both.
a)
Newton's
1st
Law of Motion
b)
Newton's
2nd
Law of Motion
c)
Newton's
3rd
Law of Motion
46.
As the fuel in a rocket ignites, the force of gas expansion and explosion pushes out the back of the rocket and pushes the rocket forward.
a)
Newton's
1st
Law of Motion
b)
Newton's
2nd
Law of Motion
c)
Newton's
3rd
Law of Motion
47.
You step from a boat to a dock.  The boat moves backwards as you move forwards and you fall in the water.
a)
Newton's
1st
Law of Motion
b)
Newton's
2nd
Law of Motion
c)
Newton's
3rd
Law of Motion
48.
You are carrying a lunch tray when you bump into the edge of a table.  Although the tray did not tip, your milk falls off of the front of the tray.
a)
Newton's
1st
Law of Motion
b)
Newton's
2nd
Law of Motion
c)
Newton's
3rd
Law of Motion
49.
You slide towards the window when a car makes a sudden turn.
a)
Newton's
1st
Law of Motion
b)
Newton's
2nd
Law of Motion
c)
Newton's
3rd
Law of Motion
50.
When you paddle a kayak, you push the paddle backwards in the water and the kayak goes forward.
a)
Newton's
1st
Law of Motion
b)
Newton's
2nd
Law of Motion
c)
Newton's
3rd
Law of Motion
51.

Determine the acceleration that results when a 12N net force is applied to a 3kg object.

a)

3 m/s

b)

4 ft/s

c)

13 m/s

d)

4 m/s2

52.
Which of Newtons laws most accurately explains the situation:
It is easier to throw a baseball fast than a bowling ball
a)
1st law
b)
2nd law
c)
3rd law
53.
Which of Newtons laws most accurately explains the situation:
A football on the ground will not move until someone kicks it
a)
1st law
b)
2nd law
c)
3rd law
54.
Balanced or Unbalanced?
a)
Balanced 
b)
Unbalanced
55.
What is the net force?
a)
400 N Up
b)
400 N Down
c)
- 400 N Down
d)
800 N Down
56.
45 m/s2 is the... 
a)
Mass
b)
Force 
c)
Acceleration
d)
weight
57.
Unit of mass
a)
m/s2
b)
m/s
c)
newtons
d)
kg
58.
If a 10 kilogram object accelerates suddenly at 15 m/s2, how much force was applied to the object?
a)
150 Newtons
b)
15 Newtons
c)
150 kilograms
d)
100 kilograms
59.
If an object was accelerating at 10 m/s2, and a force of 10 newtons was required to accelerate it, what was the object's mass?
a)
1 kilogram
b)
10 kilograms
c)
2 kilograms
d)
5 kilograms
60.
Why does a car accelerate as it round a corner at a constant speed?
a)
Its direction changes
b)
It doesn't
c)
It slows down
d)
Its speeds up  
61.
Acceleration only takes place when things speed up. 
a)
True
b)
False
62.
In each of the following cases, determine where the car has no acceleration ?
a)
A car shortly after a stoplight turns green.
b)
A car approaching a red light
c)
A car with the cruise control set at 80 km/h
d)
A car turning a curve at a constant speed
63.

The unit for acceleration is

a)

mph

b)

ft/sec2

c)

m/s2

64.

What are the three ways an object can accelerate?

a)

Speed up, slow down or change direction

b)

Go forward, go backward or stop

c)

Turn left, turn right or go straight

d)

distance, displacement or speed

65.
When are you undergoing an acceleration in a car? 
a)
speed up
b)
slow down
c)
make turns
d)
All of the above 
66.
Velocity is both ____ and _____. 
a)
speed , direction 
b)
direction, mass
c)
volume, density 
d)
direction, magnitude 
67.
Which of the following is accelerating?
a)
A cannonball sitting on the ground
b)
A boat traveling at a constant speed in a straight line
c)
A can being crushed under a person's foot
d)
A car going around a curve at a constant speed
68.
Which is an example of a car NOT accelerating?
a)
moving at 80km/h on a flat, straight highway
b)
slowing down to round a corner
c)
speeding up to win the race
d)
crossing the finish line and pulling into the pit
69.

Football A has a greater mass than football B. Which football will have greater acceleration when both are thrown with the same force in the same direction?

a)

Football A

b)

Football B

c)

They will have the same acceleration

d)

Mass has no effect on acceleration

70.
How can Newton's second law be represented  mathematically? 
a)
F=MA
b)
M= F/A
c)
A= F/M
d)
All are correct
71.
Which shopping cart will have more acceleration?  
a)
The empty shopping cart
b)
The shopping cart that's full
c)
They will be the same
72.
Will it take more force to push an empty shopping cart or a shopping cart that is full?
a)
The empty shopping cart
b)
The full shopping cart
c)
They will take the same amount of force
73.

Machines will not reduce the amount of _____________ that has to be done.

a)

effort force

b)

resistance force

c)

work

d)

friction

74.

A _____________ pulley will change the direction of movement, but not the force.

a)

fixed

b)

moveable

c)

block and tackle

d)

double

75.

If the resistance force is increased and the effort force is decreased, the mechanical advantage will _____________

a)

increase

b)

decrease

c)

remain the same

76.

A lever's input arm is 10m long and the output arm is 2m long, the MA is _____________.

a)

.20

b)

5

c)

20

d)

200

77.

Tommy does 15J of work to push the pencil over 1m. How much force did he use?

a)

0.15N

b)

15N

c)

16N

d)

14N

78.

Angela uses a force of 25N to lift her grocery bags while doing 50J of work. How far did she lift the grocery bags?

a)

0.5m

b)

2m

c)

75m

d)

1250m

79.

Who does more work? You, lifting a 600N box up one meter, or your friend using a 5m ramp to move the box up 1 meter?

a)

You

b)

Your Friend

c)

The work is the same, your friend used less force over a greater distance

80.

What happens to your effort force when you move the fulcrum closer to the load?

a)

it increases

b)

it decreases

c)

it depends on how large the load is

d)

it depends on how long the lever is

81.

A moveable pulley has a MA of _________

a)

0.5

b)

1

c)

2

d)

3

82.

What does a mechanical advantage of 10 mean?

a)

That you have to use 10x more force, because the machine divides your force by 10.

b)

That your object will move 10x farther, because the machine divides your force by 10.

c)

That you can use 1/10 as much force, because the machine multiples your force by 10

83.

Will a long ramp increase or decrease your mechanical advantage?

a)

increase

b)

decrease

c)

not enough information

84.

A football field is about 100m long. If it takes you 20 seconds to run its length, how fast were you running?

a)

0.2 m/s

b)

5 m/s

c)

120 m/s

d)

2000 m/s

85.

A car travels 400 m in 8 hours. Speed = _________

a)

0.02 m/hr

b)

50 m/hr

c)

408 m/hr

d)

32000 m/hr

86.

Velocity is

a)

the same as speed

b)

a change in speed

c)

speed in a certain direction

d)

the same as acceleration

87.

A car accelerates when it

a)

speeds up

b)

slows down

c)

changes direction

d)

all of the above

88.

A car accelerates from a standstill to 60 km/h in 10 seconds. What is its acceleration?

a)

1.7 km/h/s

b)

6 km/h/s

c)

10 km/h/s

d)

600 km/h/s

89.

A truck accelerates from 25 m/s to 55 m/s in 30 seconds? What is its acceleration?

a)

0.83 m/s2

b)

1 m/s2

c)

1.83 m/s2

d)

2.7 m/s2

90.

Inertia is the tendency to resist

a)

motion

b)

changes in motion

c)

speed

d)

friction

91.

Inertia is increased when

a)

an object moves faster

b)

an object is at rest

c)

mass decreases

d)

mass increases

92.

You throw a 5 kg ball that accelerates at 2 m/s/s. How much force did you use?

a)

2.5 N

b)

0.4 N

c)

10 N

d)

7 N

93.

Which law? A rocket is pushed into space by the gases and the gases are pushed out of the back of the rocket.

a)

1st Law

b)

2nd Law

c)

3rd Law

94.

Which law? Acceleration is determined by the force exerted and the mass of the object.

a)

1st Law

b)

2nd Law

c)

3rd Law

95.

Which law? A swimmer pushes water back with her arms, but her body moves forward.

a)

1st Law

b)

2nd Law

c)

3rd Law

96.

Which law? A truck stops suddenly and the boxes in the back slide forward.

a)

1st Law

b)

2nd Law

c)

3rd Law

97.

Which law? For every action, there is an equal and opposite reaction.

a)

1st Law

b)

2nd Law

c)

3rd Law

98.

Which law? The grocery cart is full, so it is harder to push.

a)

1st Law

b)

2nd Law

c)

3rd Law

99.

If you visit a smaller planet, your weight will

a)

not change

b)

increase

c)

decrease

100.

Weight is the measure of how much ___________ is pulling on an object's mass.

a)

friction

b)

gravity

c)

momentum

d)

air resistance

101.

Forces that do not change an object's motion are _________ forces

a)

balanced

b)

net

c)

sum

d)

unbalanced

102.

Balanced or unbalanced? A car travelling at 50 mi/h south.

a)

balanced

b)

unbalanced

103.

Balanced or unbalanced? a plane climbing in altitude.

a)

balanced

b)

unbalanced

104.

Balanced or unbalanced? A bike going around the track at a steady speed

a)

balanced

b)

unbalanced

105.

Balanced or unbalanced? using your brakes to slow down

a)

balanced

b)

unbalanced

106.

On an acceleration graph, what does a flat line (horizontal) mean? What does it mean on a speed graph?

a)

no movement on both graphs

b)

accel = constant speed, speed = no movement

c)

accel = no movement, speed = constant speed

d)

speed up on both graphs

107.

Kinetic Energy is the energy of _________

a)

thermal

b)

movement

c)

potential

d)

atoms

108.

Everything has thermal energy

a)

False

b)

True

109.

All matter is made up of atoms that are constantly moving

a)

True

b)

False

110.

Thermal energy is the __________ _________ energy of moving particles

a)

total potential

b)

average potential

c)

average kinetic

d)

total kinetic

111.

Temperature is the __________ _________ energy of moving particles

a)

average potential

b)

average kinetic

c)

total potential

d)

total kinetic

112.

Hot things have ____________ thermal energy than cold things

a)

more

b)

less

c)

same

d)

potato

113.

Objects with MORE MASS have______________

a)

lower potential energy

b)

lower number of atoms

c)

higher thermal energy

d)

higher temperature

114.

Temperature is a way we ____________ energy

a)

eat

b)

measure

c)

gain

d)

lose

115.

Cold things often have a _________ kinetic energy because_______

a)

lower; particles are moving around less

b)

lower; particles are moving around more

c)

higher; particles are moving around the same

d)

higher; particles do not move

116.

Potential energy is the _________

a)

energy of movement

b)

same as kinetic energy

c)

stored energy inside of something

d)

potato

117.

Temperature always measures the ___________ movement of molecules

a)

median

b)

mode

c)

total

d)

average

118.

For objects that have the SAME mass, which object will have a HIGHER thermal energy?

a)

the object with the higher temperature

b)

the object with the lower temperature

c)

the objects will have the same temperature

d)

the objects have no temperature

119.

Which will have the HIGHEST thermal energy?

a)

Hot cup of tea

b)

Cold bathtub water

c)

Huge lake

d)

Warm bowl of soup

120.

Which will have the LOWEST thermal energy?

a)

Large mug of hot coffee

b)

Baby bottle with warm milk

c)

Gatorade jug of cold Gatorade

d)

Large frozen puddle

121.

Objects with MORE MASS have MORE thermal energy because

a)

there are more molecules with energy in bonds

b)

there are less atoms

c)

there is less kinetic energy in the system

d)

there is no potential energy at all

122.

Energy is the ability to do __________

a)

bonds

b)

work

c)

atoms

d)

molecules

123.

Law of Conservation of Mass says...

a)

Energy is always created and destroyed

b)

Energy is only in hot things

c)

Energy can be destroyed easily

d)

Energy cannot be created or destroyed

124.

Dribbling a basketball is an example of

a)

potential energy

b)

stored energy

c)

temperature

d)

kinetic energy

125.

As temperature increases, molecules _____________

a)

move slower

b)

move the same

c)

move faster

d)

stop moving

126.

What happens to the molecules inside bridges when temperature increases? Why are there joints in the structure?

a)

Molecules move more, joints prevent them from hitting each other

b)

Molecules move less, they shrink in size

c)

Molecules move more, joints allow them room to expand without breaking bridge

d)

Molecules are not affected by temperature

127.

Kinetic Energy is the energy of _________

a)

thermal

b)

movement

c)

potential

d)

atoms

128.

Everything has thermal energy

a)

False

b)

True

129.

All matter is made up of atoms that are constantly moving

a)

True

b)

False

130.

Thermal energy is the __________ _________ energy of moving particles

a)

total potential

b)

average potential

c)

average kinetic

d)

total kinetic

131.

Temperature is the __________ _________ energy of moving particles

a)

average potential

b)

average kinetic

c)

total potential

d)

total kinetic

132.

Hot things have ____________ thermal energy than cold things

a)

more

b)

less

c)

same

d)

potato

133.

Objects with MORE MASS have______________

a)

lower potential energy

b)

lower number of atoms

c)

higher thermal energy

d)

higher temperature

134.

Temperature is a way we ____________ energy

a)

eat

b)

measure

c)

gain

d)

lose

135.

Cold things often have a _________ kinetic energy because_______

a)

lower; particles are moving around less

b)

lower; particles are moving around more

c)

higher; particles are moving around the same

d)

higher; particles do not move

136.

Potential energy is the _________

a)

energy of movement

b)

same as kinetic energy

c)

stored energy inside of something

d)

potato

137.

Temperature always measures the ___________ movement of molecules

a)

median

b)

mode

c)

total

d)

average

138.

For objects that have the SAME mass, which object will have a HIGHER thermal energy?

a)

the object with the higher temperature

b)

the object with the lower temperature

c)

the objects will have the same temperature

d)

the objects have no temperature

139.

Which will have the HIGHEST thermal energy?

a)

Hot cup of tea

b)

Cold bathtub water

c)

Huge lake

d)

Warm bowl of soup

140.

Which will have the LOWEST thermal energy?

a)

Large mug of hot coffee

b)

Baby bottle with warm milk

c)

Gatorade jug of cold Gatorade

d)

Large frozen puddle

141.

Objects with MORE MASS have MORE thermal energy because

a)

there are more molecules with energy in bonds

b)

there are less atoms

c)

there is less kinetic energy in the system

d)

there is no potential energy at all

142.

Energy is the ability to do __________

a)

bonds

b)

work

c)

atoms

d)

molecules

143.

Law of Conservation of Mass says...

a)

Energy is always created and destroyed

b)

Energy is only in hot things

c)

Energy can be destroyed easily

d)

Energy cannot be created or destroyed

144.

Dribbling a basketball is an example of

a)

potential energy

b)

stored energy

c)

temperature

d)

kinetic energy

145.

As temperature increases, molecules _____________

a)

move slower

b)

move the same

c)

move faster

d)

stop moving

146.

What happens to the molecules inside bridges when temperature increases? Why are there joints in the structure?

a)

Molecules move more, joints prevent them from hitting each other

b)

Molecules move less, they shrink in size

c)

Molecules move more, joints allow them room to expand without breaking bridge

d)

Molecules are not affected by temperature

147.

Where is the strongest attraction force of the magnet?

a)

Below the magnet

b)

At the poles

c)

Middle of the bar magnet

d)

Above the magnet

148.

As the distance between two magnets increases, the force between them

a)

decreases

b)

does not change

c)

increases

d)

stays the same

149.

As the distance between two magnets decreases, the force between them

a)

does not change

b)

decreases

c)

stays the same

d)

increases

150.

If you cut a magnet in half, what happens to the poles?

a)

None of these answers

b)

Both halves will get a South Pole

c)

Both halves with either get north or south pole

d)

Both halves will get a Norh Pole

151.

You can make an electromagnet stronger by

a)

Increasing the number of coils

b)

Decrease the number of coils

c)

Increase the current

d)

Decrease the current

152.

Electric charges always flow from

a)

negative to negative

b)

positive to positive

c)

positive to negative

d)

negative to positive

153.

A material through which electrons do NOT flow easily is a(n)

a)

insulator

b)

fuse

c)

circuit breaker

d)

conductor

154.

A material through which electrons DO flow easily is a(n) ______.

a)

fuse

b)

conductor

c)

insulator

d)

circuit breaker

155.

If you wrap more coils around an electromagnet, it will become

a)

brighter

b)

stronger

c)

weaker

d)

invisible

156.

A magnetic field exerts a force on

a)

magnetic materials

b)

materials close by

c)

materials far away

d)

none of these answers

157.

The function of a generator is to change

a)

electrical energy to mechanical

b)

electrical energy to thermal energy

c)

electrical energy to chemical energy

d)

mechanical energy to electrical energy

158.

What happens when electricity runs through a wire

a)

none of these

b)

it generates a magnetic field around the wire

c)

It uses magnetism to move the charge through the wire

d)

The magnetic field matches that of the Earth

159.

What makes a magnet weaker

a)

Dropping it

b)

Heating it

c)

Radiation

d)

All of these

160.

What do the lines around this magnet represent?

a)

South Pole

b)

magnetic domains

c)

magnetic field

d)

North Pole

161.

If you place the North pole of a magnet next to the South pole of another magnet, they will

a)

attract

b)

repel

c)

nothing will happen

d)

non of these

162.

oil, natural gas, and coal; formed from the remains of ancient plants and animals that were buried and altered over millions of years

a)

renewable resource

b)

fossil fuel

c)

biomass

d)

pollutant

163.

liquid fossil fuel formed from decayed remains of ancient organisms; can be refined into fuels and used to make plastics

a)

petroleum

b)

acid precipitation

c)

biomass

d)

coal

164.

natural resources, such as fossil fuels, that cannot be replaced by natural processes as quickly as they are used

a)

renewable resource

b)

pollutant

c)

nonrenewable resource

d)

photochemical smog

165.

reaction in which two or more atomic nuclei form a nucleus with a larger mass, releasing large amounts of energy

a)

photovoltaic cell

b)

nuclear reactor

c)

fission

d)

fusion

166.

process of splitting an atomic nucleus into two or more nuclei with smaller masses, releasing large amounts of energy

a)

fission

b)

fusion

c)

nuclear reactor

d)

nuclear waste

167.

an apparatus in which controlled nuclear chain reactions generate electricity

a)

photovoltaic cell

b)

turbine

c)

nuclear reactor

d)

generator

168.

radioactive by-product that results when radioactive materials are used

a)

pollutant

b)

hazardous waste

c)

nuclear waste

d)

acid precipitation

169.

energy source that is replaced by natural processes faster than it is used

a)

renewable resource

b)

nonrenewable resource

c)

fossil fuel

d)

petroleum

170.

device that converts solar energy into electricity; also called a solar cell

a)

nuclear cell

b)

photovoltaic cell

c)

transfer cell

d)

photochemical cell

171.

electricity produced from the energy of moving water

a)

hydroelectricity

b)

nuclear

c)

biomass

d)

geothermal

172.

thermal energy contained in and around magma; can be converted by a power plant into electrical energy

a)

fission

b)

fusion

c)

magmatic energy

d)

geothermal energy

173.

renewable organic matter from plants and animals, such as wood and animal manure, that can be burned to provide thermal energy

a)

biomass

b)

fossil fuel

c)

geothermal

d)

biothermal

174.

the total number of individuals of one species occupying the same area

a)

carrying capacity

b)

population

c)

pollution

d)

census

175.

maximum number of individuals of a given species that the environment can support

a)

population

b)

census

c)

carrying capacity

d)

limiting factor

176.

any substance that contaminates the environment

a)

nuclear waste

b)

hazardous waste

c)

pollutant

d)

photochemical smog

177.

wastes that are poisonous, cause cancer, or can catch fire

a)

hazardous waste

b)

pollutant

c)

nuclear waste

d)

acid precipitation

178.

the ozone-containing pollution that results from the reaction between sunlight and vehicular or industrial exhaust

a)

photovoltaic cell

b)

photochemical smog

c)

acid precipitation

d)

hazardous waste

179.

water with a pH below 5.6 that falls to Earth as rain or snow and can harm plants and animals and corrode buildings

a)

hydroelectricity

b)

hazardous waste

c)

acid precipitation

d)

photochemical smog

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