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PS Midterm Review

Total questions: 206

Worksheet time: 6hrs 52mins

Name
Class
Date
1.

The rate of change in velocity; how quickly velocity is changing

a)

speed

b)

velocity

c)

resultant speed

d)

acceleration

2.

The unit for acceleration is

a)

m2/s

b)

m/s

c)

m/s2

d)

m/s3

3.

For acceleration, what quantity tells the direction of an object?

a)

distance

b)

time

c)

velocity

4.

If velocity and acceleration are in the same direction an objects ____________.

a)

speeds up

b)

slows done

c)

stops

d)

turns

5.

If velocity and acceleration are in the opposite direction, the object _________.

a)

stops

b)

none

c)

slows down

d)

speeds up

6.

Acceleration due to gravity is 9.0 m/s2

a)

True

b)

False

7.

In which of the following conditions does the car not accelerate?

a)

A car moves at 80 km/h on a flat, straight highway

b)

the car slows down from 80 km/h to 35 km/h

c)

the car turns acorner

d)

the car speeds up from 35 km/h to 80 km/h

8.
The momentum of an object depends on the object's __________ and  ____________.
a)
size and shape
b)
mass and energy
c)
mass and speed
d)
mass and velocity
9.
The equation to calculate momentum is
a)
p=mv
b)
p=1/2mv^2
c)
p=mgh
d)
p=mg
10.

In any collision, the ____________ is always conserved.

a)

total momentum

b)

total speed

c)

total velocity

d)

energy

11.
How fast an object moves over a certain distance
a)
speed
b)
position
12.
A car is driven for 3 hours. What else do you need to know to describe this car’s speed?
a)
the road the car in driven on
b)
the time of day
c)
the distance the car is driven
d)
the number of passengers in the car
13.

What is the speed of a runner who runs 400 meters in 40 seconds?

a)

10 meters/second

b)

40 meters/second

c)

100 meters/second

d)

1,600 meters/second

14.
Which information is needed to determine how fast a truck is traveling?
a)
direction and mass
b)
distance and time
c)
size and speed
d)
time and weight
15.
The average speed of this object between points C and D is
a)
.375 km/s
b)
.375 m/s
c)
2.67 km/s
d)
2.67 m/s
16.
The average speed between 4 and 16 seconds is?
a)
5.2 km/s
b)
.192 m/s
c)
.181 km/s
d)
5.5 km/s
17.
A change in velocity over time is
a)
Scalar
b)
Speed
c)
Acceleration
d)
Motion
18.
Which graph shows an object not moving?
a)
A
b)
B
c)
C
d)
D
19.
Which graph shows an object increasing speed?
a)
A
b)
B
c)
D
d)
E
20.
Which term means speed with a direction?
a)
Speeding
b)
Acceleration
c)
Velocity
d)
Gravity
21.
The correct equation for acceleration is?
a)
a = d/t
b)
a = s/vf
c)
a = vf - vi / t
d)
p = m/v
22.
What are the two variables that determine momentum?
a)
speed and height
b)
mass and velocity
c)
car and truck
d)
momentum and distance
23.
If an object decreases its speed each second it moves before stopping, it is...
a)
conserving momentum
b)
insane
c)
accelerating
d)
conserving energy
24.
During which interval is the object speeding up?
a)
A to B
b)
B to C
c)
D to E
d)
E to F
25.
Acceleration occurs when an object changes its speed or ______.
a)
direction
b)
force
c)
inertia
d)
mass
26.
Which runner stopped for a rest?
a)
Albert
b)
Bob
c)
Charlie
27.
Which runner won the race?
a)
Albert
b)
Bob
c)
Charlie
28.
This is a velocity-time graph.  What is the object doing in segment A?
a)
Positive acceleration
b)
Negative acceleration
c)
Constant Velocity
d)
Not moving
29.
This is a velocity-time graph.  What is the object doing in segment C?
a)
Positive acceleration
b)
Negative acceleration
c)
Constant Velocity
d)
Not moving
30.
What does this graph represent?
a)
Constant Speed
b)
Acceleration
c)
Not moving
31.
What does this graph represent?
a)
Constant speed
b)
Acceleration
c)
Not moving
32.
Acceleration of an object happens when things ________
a)
slow down
b)
go faster
c)
change direction (turn)
d)
All of the above
33.
The SI unit for acceleration is
a)
mph
b)
m/s
c)
m/s2
34.
Acceleration: is the rate of change in ___________.
a)
speed
b)
distance
c)
velocity 
d)
displacement 
35.
An object is _____ if its position changes relative to another object.
a)
in motion
b)
at reset
c)
a frame of refence
d)
magical
36.
A distance vs. time graph shows an object's
a)
frame of reference
b)
speed
c)
acceleration
d)
favorite food
37.
A place or object used for comparison to determine if another object is in motion is called a
a)
comparison point
b)
reference point
c)
point of view
d)
motion detector
38.
All motion is described as relative because
a)
how do you ever really know if something is in motion
b)
motion means different things to different people
c)
everything in the universe is constantly in motion, so it depends on your frame of reference
39.
Speed =
a)
distance / time
b)
time / distance
c)
distance * time
40.
The difference between speed and velocity is
a)
Velocity involves time, speed does not
b)
Velocity has direction while speed does not
c)
Speed involves time while velocity does not
d)
 Speed involves direction while velocity does not
41.
What is another word used for negative acceleration?
a)
speeding up
b)
accelerating
c)
deceleration
d)
velocity
42.
motion is the change in what?
a)
speed
b)
velocity
c)
acceleration
d)
position
43.
On a distance vs. time graph, the steeper the slope _____
a)
the slower the speed
b)
the faster the speed
c)
less acceleration
d)
greater acceleration
44.
This graph shows
a)
An object stopped
b)
An object moving at constant speed
c)
An object slowing down
d)
An object speeding up
45.
This graph shows
a)
An object stopped
b)
An object slowing down
c)
An object speeding up
d)
An object moving at constant speed
46.
All are units of speed except
a)
m/s
b)
miles per hour
c)
km/hour
d)
m/s/s
47.
What is the SI unit used to measure force? 
a)
Pounds 
b)
Grams 
c)
Newtons 
d)
kg/ m2
48.

The sum of all forces acting on an object.

a)

newton

b)

force

c)

net force

d)

balanced force

49.

When forces are unbalanced, the object will move in the direction of the _______ force.

a)
larger 
b)
smaller 
c)
equal 
d)

Frictional

50.
To calculate net force, when forces are acting in the same direction, the forces are ...
a)
added 
b)
subtracted 
c)
mutiplied 
d)
divided 
51.

When the net forces equal 0 N, they are which of the following?

a)

unbalanced

b)

a push

c)

a pull

d)

balanced

52.

Select the non-contact forces.

a)

Magnetism

b)

friction

c)

normal force

d)

gravity

53.

Which of the following causes a change in motion?

a)

balanced forces

b)

either balanced or unbalanced forces

c)

unbalanced forces

d)

any combination of forces

54.
To calculate net force, when forces are acting in opposite directions, the forces are ...
a)
added 
b)
subtracted 
c)
multiplied 
d)
divided 
55.

Select 3 statements that are true about a balanced force: 

a)

The is no change in movement/velocity

b)

Net Force =0

c)

Forces acting on the object are equal

d)

An example is rolling friction

56.

Calculate the net force for the following: 

a)

1 N to the right

b)

7 N to the left

c)

7 N

d)

7 N to the right

57.

This is a force that opposes any two surfaces that come in contact 

a)

Friction

b)

Acceleration

c)

Stationary force

d)

Net Force

58.

In physics the term fluid friction refers to...

a)
Both gases and liquids
b)
Gases only
c)
Liquids only
d)

Both solids & liquids

59.

Which surface would you expect the MOST friction?

a)
b)
c)
d)
60.

Which of the following frictional forces would be classified as kinetic? (Select 3) 

a)

Fluid

b)

Unbalanced

c)

Sliding

d)

Static

e)

Rolling

61.

This type of friction is also known as "drag" 

a)

Static

b)

Sliding

c)

Fluid

d)

Kinetic

62.
What type of fluid friction acts on an object moving through the air?
a)
Friction 
b)
Normal Force 
c)
Gravity 
d)
Air resistance 
63.
The combination of all forces acting on an object is...
a)
Force
b)
Net Force
c)
Resultant Velocity
d)
Speed
64.
An action exerted on a body in order to change the body's state of rest or motion is...
a)
Force
b)
Friction
c)
Net Force
d)
Cats
65.
A force that opposes motion between two surfaces that are in contact is...
a)
Friction
b)
Force
c)
Net Force
d)
Lazers
66.
Which is stronger, static friction or kinetic friction?
a)
Static
b)
Kinetic
67.
What are the three types of kinetic friction?
a)
Sliding, Rolling, Fluid
b)
Fluid, Gas, Plasma
c)
Molecular, Rolling, Fluid
d)
Gas, Sliding, Rolling
68.

What is the force due to the pull of gravity?

a)

friction

b)
weight
c)

tension

d)
mass
69.

A 6 kilogram mass is accelerated to 4 m/s/s. What is the net force acting on it?

a)

60 N

b)

16 N

c)

20 N

d)

24 N

70.

Match the following

a)

Push or a pull

1.

Definition of force

b)

Net Force

2.

When forces are unbalanced

c)

Newton's First Law

3.

Object at rest stays unless force acts.

d)

Newton's Second Law

4.

F=ma

e)

Newton's Third Law

5.

Action / Reaction Pairs

71.

You apply the same force to two objects. The more massive object will accelerate ​ (a)   the smaller object.

Choose from the below words
less than
more than
the same as
72.

You apply the same force to two objects. The less massive object will accelerate ​ (a)   the larger object.

Choose from the below words
the same as
more than
less than
73.

What is the unit of weight?

a)

Newton (N)

b)

Kilogram (kg)

c)

Joule (J)

d)

Meter per second squared (m/s^2)

74.

A 5 kilogram mass is accelerated to 3 m/s/s. What is the net force acting on it?

a)

8 N

b)

15 N

c)

50 N

d)

25 N

75.

What is the force that acts perpendicular to the surface?

a)

Friction

b)

Gravity

c)

Normal

d)

Magnetic

76.

You are standing on Earth in a spacesuit, when all of a sudden you're transported in the middle of space. Does your mass and weight change?

a)

Mass changes, but weight doesn't

b)

Mass stays the same, weight changes

c)

Both mass and weight change.

d)

Neither mass or weight change.

77.

A 4 kilogram mass is accelerated to 5 m/s/s. What is the net force acting on it?

a)

9 N

b)

20 N

c)

40 N

d)

25 N

78.
While electric current is flowing through a wire, what surrounds the wire?
a)
a magnetic field
b)
a glowing light
c)
neutrons
d)
protons
79.

What two forces are required for generators and electric motors to work?

a)

magnetism and thermal

b)

electricity and thermal

c)

electricity and magnetism

d)

magnetism and radiant

80.
What is the transfer of electricity in a generator?
a)
Mechanical to Electrical 
b)
Physical to Potential 
c)
Electrical to Mechanical
d)
Yogurt to Light
81.
What is the transfer of electricity in a motor?
a)
chemical to mechanical 
b)
electrical to mechanical
c)
mechanical to electrical 
d)
physical to potential 
82.
This picture shows a turbine generator used to produce electricity at a geothermal power plant.
Electricity is produced by using steam to _____________.
a)
heat the turbine generators
b)
spin the turbine generators 
c)
reduce friction in the turbine generators
d)
reduce emissions from the turbine generators
83.

What would happen if you broke a bar magnet into 8 pieces?

a)

You would have 8 half magnets

b)

You would have 4 complete magnets

c)

You would have 8 complete magnets

d)

They wouldn't be magnets anymore

84.

A transformer actually transforms

a)

voltage

b)

magnetic field lines

c)

generators into motors

85.

A device that transforms mechanical energy to electrical energy is a

a)

generator

b)

motor

c)

transformer

d)

magnet

86.

A device that transforms electrical energy to mechanical energy is a

a)

generator

b)

motor

c)

transformer

d)

magnet

87.
The transformer shown is what type?
a)
step-up
b)
step-down
c)
current transformer
d)
isolation transformer
88.

Why did this simple electric motor work?

a)

The current from the battery induces a magnetic field in the copper loop, turning it into an electromagnet that repels from/attracts to the permanent magnet

b)

The electromagnet on top of the battery pulls on the magnetic copper wire

c)

The magnet induces a current in the copper loop which makes it rotate.

d)

The magnetic field from the battery induces an electric current in the copper loop, turning it into an electromagnet that repels from/attracts to the permanent magnet

89.
An electric motor changes electrical energy to _________ energy. 
a)
mechanical 
b)
chemical
c)
potential
d)
free
90.

How are electromagnets different from permanent magnets?

a)

magnets can be turned on/off

b)

you can turn an electromagnet on/off

c)

magnets are more powerful

d)

magnets have a North and South pole

91.
In large generators in power plants, ___________ rotate inside a coil of wire to produce an electric current.
a)
Wind
b)
Water
c)
Magnets
d)
Circuits
92.
Based on this picture, which side will have a higher voltage?
a)
Secondary
b)
Primary
c)
Both sides have the same voltage
d)
Cannot be determined
93.
A magnet is moved in and out of a coil of wire connected to a high-resistance voltmeter. If the number of coils doubles, the induced voltage 
a)
quadruples
b)
doubles
c)
is the same
d)
halves
94.

An ideal transformer has 12 V input voltage with 10 turns on the primary (input) coil, and 100 turns on the secondary coil has. What is the secondary voltage?

a)

0.12 V

b)

1.20 V

c)

12.0 V

d)

120.0 V

95.
What is the device seen here?
a)
generator
b)
electric motor
c)
electromagnet
d)
magnet
96.
When John plugs in a toy and turns it on, a marble is carried up to the top of a slide. At the top, a marble is released and it goes down a slide. What kind of energy transformation occurs to make this toy work?
a)
chemical to heat
b)
electrical to chemical
c)
sound to electrical
d)
electrical to mechanical
97.
A device that converts kinetic energy into electrical energy
a)
A. electric generator
b)
B. electric motor
c)
C. electromagnetic induction
d)
D. electricity
98.
What is the relationship between electrical current and magnetic field strength in an electromagnet?
a)
When current is increased, magnetic field strength increases
b)
When current is increased the strength of magnetic field decreases
c)
When the current is decreased, the strenght of the magnetic field is increased.
d)
There is an "indirect proportion," meaning, if the value of one goes up, the value of the other goes down.
99.

The force or push that causes electric charges to move is called ______ .

a)

resistance

b)

voltage difference

c)

static electricity

d)

current

100.

Electric charges always flow from _____ areas to _____ areas.

a)

positive; negative

b)

negative; positive

c)

neutral; negative

d)

neutral; positive

101.

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

a)

insulator

b)

conductor

c)

fuse

d)

circuit breaker

102.

Which of the following statements about electric charge is true?

a)

Objects must be touching on another to exert electrical force.

b)

Electrical forces act at a distance.

c)

Air cannot conduct electricity; it is conducted only by solid materials.

d)

Opposite electric charges always repel one another.

103.

Mr. Robinson and his class are conducting an experiment. The class needs to choose a good insulator. Which of the following could be used as an insulator?

a)

plastic plate

b)

silver spoon

c)

copper wire

d)

gold necklace

104.

Which of the following will increase the resistance of a wire?

a)

using a thicker/wider wire

b)

using a shorter wire

c)

increasing the temperature of the wire

d)

using silver instead of copper

105.

What is the current produced by a 9-volt battery flowing through a resistance of 0.2 ohms?

a)

1.8 amps

b)

45 amps

c)

0.022 amps

d)

8.8 amps

106.

Which two areas of physical science are closely related to the development of electric motors and generators?

a)

sound and light

b)

electricity and sound

c)

light and magnetism

d)

electricity and magnetism

107.

Which of the following will decrease the strength of the magnetic field around a wire?

a)

increasing the current flowing through the wire

b)

using less loops around the iron core

c)

flipping the direction of the current flowing through the wire

d)

using a larger iron core

108.

Silver has a resistance of 0.0198 ohms. What voltage would produce a current of 100 amps?

a)

1.98 V

b)

0.000198 V

c)

5050 V

d)

100.0198 V

109.

This contains a piece of metal that melts if it gets too hot in order to open a circuit.

a)

conductor

b)

insulator

c)

fuse

d)

circuit breaker

110.

The function of a generator is to change ______

a)

chemical energy to electrical energy

b)

electrical energy to chemical energy

c)

mechanical energy to electrical energy

d)

electrical energy to mechanical energy

111.

This exerts a force that causes other electric charges to move.

a)

electrical poles

b)

electrical fields

c)

insulators

d)

conductors

112.

Which circuit below contains the greatest voltage?

a)

A circuit with a current of 20 amps and a resistance of 16 ohms

b)

A circuit with a current of 10 amps and a resistance of 10 ohms

c)

A circuit with a current of 25 amps and a resistance of 16 ohms

d)

A circuit with a current of 20 amps and a resistance of 10 ohms

113.

What process is the method by which a neutral object obtains an electrical charge from a distance?

a)

convection

b)

conduction

c)

radiation

d)

induction

114.

Which of the following objects would NOT be a good insulator of electric charge?

a)

skin

b)

wood

c)

plastic

d)

rubber

115.

The Law of Conservation of Charge states that _____.

a)

charge can be created and destroyed but NOT transferred.

b)

charge cannot be created and destroyed but it can be transferred.

c)

charge cannot be created and destroyed and it cannot be transferred.

d)

none of the answers

116.

Alexandra was preparing to go on a hike in the woods. She gathered the equipment she would need and placed it on the kitchen counter. By chance, she placed her compass near an electrical outlet. Although the compass was not moving, the compass needle turned because ______.

a)

the electric current in the outlet produced a magnetic field

b)

the compass could only be used outdoors

c)

the kitchen counter was made of a magnetic substance

d)

the kitchen had a microwave oven

117.

In a closed circuit containing one resistor and a battery, if the voltage in the battery increases, the current going through the resistor increases. Why does this occur?

a)

As the electrons are sped up, they bunch closer together.

b)

As the electrons have more energy, they vibrate more rapidly.

c)

As the electrons are pushed more by the battery, they move faster through the circuit.

d)

As the distance around the circuit increases, the electrons take longer to travel around.

118.

Laser printers work with the use of heat and positive and negative charges. The laser etches a negative charge on spots of the printer drum in the form of text or images. The plastic ink dust is attracted to the places on the drum with this negative charge. What is the charge of the plastic ink dots themselves?

a)

electron

b)

negative

c)

neutral

d)

positive

119.
Magnets have a north and a south ___________
a)
shape
b)
color
c)
pole
d)
region
120.
The strongest part of a magnet is...
a)
the bars.
b)
the force field.
c)
the poles. 
d)
the middle.
121.
If you wrap more coils around an electromagnet, it will become...
a)
brighter
b)
stronger
c)
weaker
d)
invisible
122.

What happens if you line the magnets up so that two of the same poles face each other? (ex. North Pole & North Pole)

a)

They will attract

b)

They will repel

123.

This is an example of what type of circuit?

a)

simple

b)

series

c)

parallel

124.
This is the circuit symbol for ...
a)
an AC current source
b)
a DC current source
c)
a battery
d)
a single cell
125.
this is the symbol for a _____?
a)
switch
b)
light 
c)
battery
d)
wires
126.
Static electricity is an electric charge caused by friction that can build up on a material or surface. One example of static electricity is:
a)
solar power
b)
magnetism
c)
lightning
127.

The SI unit for WORK is:

a)

Joules

b)

Watts

c)

Newtons

d)

Kilogram

128.

The SI unit for POWER is:

a)

Watts

b)

Joules

c)

Newtons

d)

Meters

129.
What is the formula for Gravitational Potential Energy?
a)
PE = m*g*h
b)
KE = 1/2m*v2
c)
W = F*d
d)
P = W/t
130.
What is the formula for Kinetic Energy?
a)

PE = m*g*h

b)

KE = 12mv2\frac{1}{2}mv^2

c)

W = F*d

d)

P = W/t

131.

A 180 gram softball is thrown into the air using 40 J of work. The ball rises to its maximum height in 1.96 seconds. How much power was exerted throwing the ball?

a)

144 W

b)

20.4 W

c)

3.52 W

d)

2.11W

132.

Assuming no friction or air resistance, at what point in a pendulum's swing is its Mechanical energy the least?

a)

At the very bottom of its path

b)

Its mechanical energy is constant throughout

c)

Half way between the top and bottom of its path

d)

At the very top of its path

133.

Where does the pendulum have the least amount of potential energy?

a)

A

b)

B

c)

C

d)

D

e)

E

134.

Newtons (N) are the unit for __________.

a)

Work

b)

Distance

c)

Acceleration

d)

Force

135.

Kinetic Energy is defined as:

a)

Energy stored due to its location

b)

Energy of motion

c)

Energy stored in the bonds of molecules

d)

Thermal (Heat) energy

136.

What is the height of a 3200-kg plane if it has 960000 J of potential energy?

a)

10.2 m

b)

30.6 m

c)

307200000 m

d)

300 m

137.

A driver continuously pushes a car stuck in the mud with 900N of force for 70 seconds. The car does not budge. How much work has the driver done on the car?

a)

63000 J

b)

0 J

c)

12.9 J

d)

6300 J

138.
A girl on a motorbike passes by at a speed of 15 m/s. Her mass is 40 kg. What is her kinetic energy? 
a)
300 Joules
b)
600 Joules
c)
950 Joules
d)
4500 Joules
139.
Which character has the greatest gravitational potential energy?
a)
Character A
b)
Character B
c)
Character C
d)
Character D
140.
According to the Law of Conservation of Energy, energy cannot be _________ or ____________. 
a)
destroyed, destroyed
b)
created, saved
c)
created, destroyed
d)
lost, found
141.

A runner exerts 222,000 J when she runs for 60 seconds. What is the runner's power?

a)

3700 W

b)

600 W

c)

400 J

d)

60 J

142.

A typical internal combustion engine only converts 20-40% of the potential energy stored in fuel to the mechanical movement of the car. Where does a majority of the energy go?

a)

Lost as Light Kinetic energy

b)

Lost as Thermal energy

c)

Lost as Elastic Potential energy

d)

Lost as Gravitational Potential energy

143.

Energy stored inside a leaf would be considered to be:

a)

electrical

b)

chemical

c)

thermal

d)

mechanical

144.

Energy from a compressed spring would be an example of:

a)

kinetic

b)

elastic potential

c)

gravitational potential

d)

chemical potential

145.

What is the difference between calculating Power and Work?

a)

Power takes the time of a task into account

b)

Work takes into account the time it takes to complete a task

c)

Power is the amount of force divided by area used

d)

Work is the amount of seconds needed for energy transfer

146.

Energy that is stored in bonds between atoms in compounds is:

a)

Mechanical energy

b)

Chemical energy

c)

Kinetic energy

d)

Nuclear energy

147.
When does an object have no kinetic energy?
a)
when it is at rest
b)
when it is moving very slowly
c)
when the only force that is acting on it is gravity
d)
when it has no electrical charge
148.

What is the formula for calculating Power?

a)

P = Fd

b)

P = ham

c)

P = W/t

d)

P = Wt

149.

Energy cannot be created or destroyed. But, it can be _____.

a)

transformed

b)

increased

c)

decreased

d)

evaporated

150.

Energy made available through the flow of electric current through a conductor is called:

a)

Radiant

b)

Thermal

c)

Electrical

d)

Kinetic

151.

Energy that is carried by light is referred to as:

a)

Radiant

b)

Thermal

c)

Kinetic

d)

Potential

e)

Electrical

152.

What is potential energy?

a)

The energy an object has due to its atomic structure.

b)

The energy an object has due to its chemical composition.

c)

The energy an object has due to its motion.

d)

The energy an object has due to its position or condition.

153.

Gravitational potential energy depends on the strength of gravity, ________ and ________ of the object.

a)

height and mass

b)

friction and movement

c)

mass and movement

d)

height and friction

154.

Wood, batteries, gasoline, and food are all examples of ____________.

a)

gravitational potential energy

b)

elastic potential energy

c)

chemical potential energy

d)

kinetic (heat) energy

155.

A exercise ball is on a table 2.5 m above the ground. What is the mass of the ball if it has a GPE of 56.8 J?

a)

71 kg

b)

22.72 kg

c)

142 kg

d)

2.32 kg

156.
Which energy conversion is taking place when you put gasoline in a car?
a)

nuclear kinetic -> electrical, radiant, and sound

b)

mechanical potential -> electrical and elastic

c)

chemical potential -> Kinetic, sound and thermal

d)

thermal -> electromagnetic and kinetic

157.
Which of these is an example of light energy being transformed into chemical energy?
a)
A glow stick lights up when broken.
b)
Water heated by the sun evaporates.
c)
A plant makes sugar in the sunlight.
d)
A battery causes a buzzer to vibrate.
158.

What would 54N be an example of?

a)

work

b)

power

c)

distance

d)

force

159.

If you increase your work and decrease your time, you will have:

a)

more power

b)

less power

c)

the same amount of power

d)

power rating cannot be determined

160.

What are the two types of Mechanical Energy (ME)?

a)

Kinetic & Potential

b)

Potential & Thermal

c)

Kinetic & Electrical

d)

Electrical & Thermal

161.

This picture represents a diver’s motion from the top of a high diving board into a pool of water. At what point does the diver have the greatest kinetic energy and the least potential energy?

a)

1

b)

2

c)

3

d)

4

162.

Water currents that flow from the equator to the poles move heat from warmer climates to colder ones are an example of which transfer of heat?

a)

Conduction

b)

Convection

c)

Radiation

d)

Reduction

163.

What type of heat transfer is the following?

Solar panels are used to collect sunlight for energy.

a)

Convection

b)

Conduction

c)

Radiation

d)

None of the above

164.

In the following example, identify the type of heat transfer.

You hold an ice cube in your hand and it begins to melt.

a)

Radiation

b)

Convection

c)

Conduction

165.

In the following example, identify the correct type of heat transfer:

You feel the warmth from the sun on your face.

a)

Convection

b)

Conduction

c)

Radiation

d)

Reduction

166.

In terms of Thermal Energy, heat will:

a)

Always flow from the warmer object when its above 50⁰C

b)

Always flow from higher temperatures to lower temperatures

c)

Always flow from lower temperatures to higher temperatures

d)

It depends on the temperature

167.
What is the equation to measure change in Thermal Energy?
a)
Q=mc∆t
b)
Q=mc
c)
Q= ∆mct
d)
m=QC
168.

There are four cups of hot cocoa. The cup sizes are shown. The temperature of the cocoa in each cup is 25 degrees Celsius. Which cup has the MOST thermal energy?

a)

Large cup (Trenta)

b)

Small cup (Tall)

c)

Medium cup (Venti)

d)

All three are the same temperature so they have the same thermal energy

e)

Grande cup

169.

Which material from the list will take the most energy to heat and raise its temperature?

a)

liquid water

b)

Lead

c)

Granite

d)

Iron

e)

water vapor

170.

If 68 W of power is produced in 18 seconds, how much Work is done?

a)

1224 J

b)

0.264 J

c)

3774 J

d)

12.24 J

171.
How much time is needed to produce 720 Joules of work if 90 watts of power is used? 
a)

0.125 s

b)

8 s

c)

64800 s

d)

80 s

172.

A 5.8 kg crate is pushed across the floor for 4.5 meters. How much Work was done on the crate?

a)

26.1 J

b)

255.78 J

c)

12.63 J

d)

272.32 J 

173.
As the skier goes down the hill, ________ energy increases while _______ energy decreases.
a)
Gravitational; Kinetic
b)
Kinetic; Gravitational
c)
Elastic; Kinetic
d)
Kinetic; Elastic
174.

If mass is doubled what happens to the amount of kinetic energy an object has?

a)

KE doubles

b)

KE is cut in half

c)

KE is reduced to 1/4

d)

KE is quadrupled

175.

____________ is the ability to do work or cause change.

a)

Energy

b)

Force

c)

Friction

d)

Motion

176.

What is the correct unit for mass in energy equations?

a)

Kilogram (Kg)

b)

Newton (N)

c)

Joule (J)

d)

Watt (W)

e)

Gram (g)

177.

What is the KE half way down the ramp?

a)

50 J

b)

25 J

c)

0 J

d)

100 J

178.

What is Thermal Energy?

a)

Energy produced while moving through an electric current

b)

Energy that sound carries in the form of large waves

c)

The sum of the potential and kinetic energy of the particles in an object.

d)

The energy that electromagnetic waves carry through atomosphere

179.

What is an example of sound energy?

a)

A thermometer heating up

b)

Solar panels generating electricity

c)

A guitar string being plucked

d)

A machine in an assembly line

180.

What type of energy transformation occurs in a toaster?

a)

Electrical to radiant only

b)

Electrical to thermal and radiant

c)

Thermal to mechanical and electromagnetic

d)

Solar to electrical and chemical

181.

What type of energy transformation occurs when a piece of wood burns?

a)

Electrical energy is released as radiant and chemical energy

b)

Chemical energy is released as thermal and radiant energy

c)

Mechanical energy is stored as chemical energy

d)

No transformation occurs

182.
What would be the effect on the particles if more heat is supplied to the system?
a)
They would slow down
b)
They would stop moving
c)
They would speed up
d)
There would be no effect
183.

A sample of iron receives 50.0 J of heat energy that raises the temperature of the iron by 25.0°C. If iron has a specific heat of  0.10 J/g°C, what is the mass of the iron sample?

a)

25 g

b)

30 g

c)

20 g

d)

50 g

184.
What is the symbol for Thermal Energy?
a)
Q
b)
T
c)
m
d)
Cp
185.

What is the measurement of the average kinetic energy of the particles of a substance? (a)  

Choose from the below words
Temperature
Kinetic energy
Thermal energy
Potential energy
186.

Match the following

a)

conduction

1.

ironing a shirt

b)

convection

2.

hot air currents heating a cold room

c)

radiation

3.

a microwave heating food

187.

The amount of energy required to raise the temperature 1ºC for every gram or kilogram is called____?

a)

Thermal Energy

b)

Specific Heat

c)

Temperature

d)

Kinetic Energy

e)

Heat Value

188.
What is a insulator?
a)

a material that slows the transfer of heat

b)

a material that transfers heat easily

c)

a material that is fluffy and soft

d)

a material that is kept at a lower temperature

189.

What is the BEST example of a conductor of thermal energy?

a)

A wooden block

b)

A wool oven mitt

c)

A plastic mug

d)

A metal pan

190.

What is a Conductor?

a)

a material that slows the transfer of heat

b)

a material that transfers heat easily

c)

a material that is retains and measures heat transfer

d)

a material that is temperature controlled

191.

Which of the following is a good conductor of heat and electricity?

a)

newspaper

b)

copper wire

c)

glass plate

d)

plastic bottle

192.

All of the following are true regarding Einstein's equation, E=mc2 EXCEPT:

a)

The equation evaluates something called "Rest Energy"

b)

It proves that mass and energy are interrelated

c)

It proves that the speed of light a constant value (3 x 108 m/s)

d)

It proves that energy can be created at the speed of light

193.
What type of simple machine is found on the cap of a pickle jar?
a)
lever
b)
inclined plane
c)
screw
d)
wheel and axle
194.
What is the fixed point upon which a lever rotates?
a)
fulton
b)
fulcrum
c)
furmen
d)
falcon
195.
Which of these is an example of a wedge?
a)
skateboard
b)
broom
c)
stairs
d)
butter knife
196.
A screw is made up of _________ wrapped around a post or rod.
a)
treads
b)
springs
c)
threads
d)
strings
197.
Which is an example of someone using a simple machine to do work?
a)
a boy runs across a football field
b)
a banker counts money
c)
a mother puchses a stroller up a ramp into a building
d)
a girl eats a sandwich
198.
Jan is using a screwdriver to insert a screw.  The screwdriver is being used as
a)
a pulley
b)
a screw
c)
a lever
d)
a wheel and axle
199.
Thomas is using a screwdriver to pry open a paint can,  The screwdriver is being used as
a)
a pulley
b)
an inclined plane
c)
a screw
d)
a lever
200.
The wheel and rope make up which simple machine?
a)
pulley
b)
lever
c)
wheel and axle
d)
inclined plane
201.
What simple machine has a fulcrum and can be used to lift a weight?
a)
Pulley
b)
lever
c)
screw
d)
wedge
202.
A push or pull that can move an object is a
a)
fulcrum
b)
force
c)
machine
d)
lever
203.
What is anything that makes work easier called?
a)
screw
b)
wedge
c)
force
d)
machine
204.
What type of simple machine is this?
a)
Pulley
b)
Screw
c)
Inclined Plane
d)
Lever
205.

If you needed to use a lever to move a heavy object, where is the best place to place the load?

a)

next to where the force is applied

b)

directly under the fulcrum

c)

opposite end of the fulcrum

d)

near the fulcrum.

206.
The man is using which simple machine to enable him to lift 200 km?
a)
wheel and axle
b)
pulley
c)
wedge
d)
screw

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