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Physical Science Spring Review

Total questions: 99

Worksheet time: 2hrs 37mins

Name
Class
Date
1.
What is a PUSH or PULL of an object?
a)
Motion
b)
Force
c)
Friction
d)
Gravity
2.
Why is it harder for the boy in Image B to get down the hill?
a)
Motion
b)
Friction
c)
Work
d)
Displacement
3.
Which force produces a change in motion?
a)
unbalanced force
b)
balanced force
c)
gravitational force
d)
frictional force
4.
If these boys 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.
5.
What happens when two forces act in the same direction?
a)
They cancel each other out.
b)
The stronger one prevails.
c)
Their strengths are added.
d)
Their sum divided by the two is the total force.
6.
What is the formula for force?
a)
F=M/A
b)
F=A/M
c)
F=M*A
d)
F=M*F
7.
Any time the forces are unbalanced, an object will remain at rest. True or false?
a)
true
b)
false
8.
When you tell the direction and speed of an object, you give its
a)
motion
b)
velocity
c)
acceleration
d)
mass
9.
What is the net force on the block? (click on the words to view the picture)
a)
5 Newtons up
b)
5 Newtons down
c)
15 Newtons up
d)
15 Newtons down
10.
Which of the following statements is true? 
a)
Balanced forces cause a change in motion. 
b)
Unbalanced forces cause a change in motion. 
c)
Forces do not effect the change in motion. 
11.
What does this graph represent?
a)
Constant speed
b)
Acceleration
c)
Not moving
12.
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
13.
Which of the following objects has the least acceleration?
a)
a. an empty shopping cart pushed with a hard force
b)
b. a full shopping cart pushed with a hard force
c)
c. an empty shopping cart pushed with a light force
d)
d. a full shopping cart pushed with a light force
14.
A baseball is thrown a distance of 50 meters. What is the speed if it takes 2 seconds to cover that distance?
a)
100 m/s2
b)
25 m/s2
c)
52 m/s2
d)
100 seconds
15.
Speed is equal to 
a)
Distance/Time
b)
Time/Distance
c)
Time x Distance
d)
Acceleration
16.
Speed is different from velocity because
a)
Velocity has a direction
b)
Speed uses Distance /Time
c)
Velocity doesn't include time
d)
Velocity doesn't include distance
17.
During which interval is the object speeding up?
a)
A to B
b)
B to C
c)
D to E
d)
E to F
18.
What is this graph showing?
a)
Constant Speed
b)
Acceleration (speeding up)
c)
Deceleration (slowing down)
d)
No motion
19.
8 N to the left , and 4 N to the right. Find the net force. Is this balanced 
a)
12 N Right  No
b)
4 N Left  No
c)
12 N Right  Yes
d)
4 N Left  Yes
20.
A woman lifts 20 bricks, each of weight 6N.
What other information is needed to calculate the useful work done in lifting the bricks?
a)
the distance she lifts the bricks
b)
the mass of the bricks
c)
the time taken to lift the bricks
d)
the volume of the bricks
21.
How far does the car travel before it reaches a steady speed?
a)
10m
b)
20m
c)
100m
d)
200m
22.
Which statement about mass and weight is correct?
a)
Mass and weight are both forces
b)
Neither mass nor weight is a force
c)
Only mass is a force
d)
Only weight is a force
23.
a)
  A
b)
  B
c)
  C
d)
  D
24.
a)
   A
b)
  B
c)
   C
d)
   D
25.
In a race, a car travels 60 times around a 3.6km track. This takes 2.4 hours. What is the average speed of the car?
a)
1.5 km/h
b)
90 km/h
c)
144 km/h
d)
216 km/h
26.
Two forces act on an object.
In which situation is it IMPOSSIBLE for the object to be in equilibrium?
a)
The two forces act in the same direction
b)
The two forces act through the same point
c)
The two forces are of the same type
d)
The two forces are the same size
27.

The greater mass a moving object has, the more kinetic energy it has.

a)

True

b)

False

28.

A rock at the edge of a cliff has kinetic energy because of its position.

a)

True

b)

False - electrical

c)

False - chemical potential

d)

False - gravitational potential

29.

Energy that is stored is kinetic energy.

a)

True

b)

False - potential

c)

False - efficiency

d)

False - temporary

30.

Chemical potential energy is energy stored in chemical bonds.

a)

True

b)

False - thermal energy

c)

False - gravitational potential

d)

False - elastic potential

31.

Thermal energy is energy stored by things that stretch or compress.

a)

True

b)

False - gravitational potential

c)

False - chemical potential

d)

False - elastic potential

32.

A toaster uses chemical energy to make toast.

a)

True

b)

False - electrical

c)

False - kinetic

d)

False - potential

33.

The rate at which energy is converted is called power.

a)

True

b)

False - efficiency

c)

False - mechanical advantage

d)

False - gravity

34.

GPE = mga

a)

True

b)

False - mgh

c)

False - mgW

d)

False - mgv

35.

Heating a substance causes its molecules to slow down.

a)

True

b)

False - speed up

c)

False - be still

36.

* energy is the energy an object has because of its motion.

a)

Kinetic

b)

Potential

c)

Chemical

d)

Magnetic

37.

Compared to water, most metals have low specific heats.

a)

True

b)

False - high

c)

False - similar

38.

* energy is stored energy due to position.

a)

Kinetic

b)

Gravitational potential

c)

Chemical potential

d)

Elastic potential

39.

If work stays the same and distance is increased, then force will be needed.

a)

less

b)

more

c)

the same

d)

no

40.

Energy stored in chemical bonds is called .

a)

elastic potential energy

b)

chemical potential energy

c)

kinetic energy

d)

none of these

41.

Anything that can fall has stored energy called

a)

elastic potential energy

b)

chemical potential energy

c)

kinetic energy

d)

gravitational potential energy

42.

Which of the following is not used to calculate potential energy?

a)

mass

b)

gravitational acceleration

c)

height

d)

speed

43.

The kinetic energy of an object increases as its increases.

a)

height above Earth

b)

speed

c)

potential energy

d)

volume

44.

Mechanical energy is the total kinetic and.......... energies in a system

a)

thermal

b)

chemical

c)

potential

d)

electrical

45.

Green plants convert light energy from the sun into .

a)

gravitational potential energy

b)

chemical potential energy

c)

thermal energy

d)

mechanical energy

46.

All of the following are good conductors EXCEPT .

a)

air

b)

aluminum

c)

copper

d)

silver

47.

Which of the following would be the best insulator?

a)

air

b)

aluminum

c)

copper

d)

silver

48.

When you put on the brakes of a bicycle, friction causes some of the mechanical energy to change to thermal energy.

a)

True

b)

False - remain

c)

False - return to

d)

False - ignore

49.

Elastic energy is the total potential and kinetic energy in a system.

a)

True

b)

False - mechanical

c)

False - gravitational potential

d)

False - chemical potential

50.

Which of the following devices does not make use of electrical energy?

a)

upright piano

b)

radio

c)

toaster

d)

digital camera

51.

The SI unit for energy is the

a)

calorie

b)

joule

c)

meter per second

d)

kilogram

52.

The unit of power is the .

a)

joule

b)

watt

c)

m/s

d)

second

53.

At what point on a roller coaster is the gravitational potential energy the lowest?

a)

at the top of the highest drop

b)

at the lowest point of the roller coaster

c)

while on the decline

d)

while on the incline

54.

Which gives the correct relationship for kinetic energy?

a)

KE = mv

b)

KE = mv2

c)

KE = 1/2mv

d)

KE = 1/2mv2

55.

You can calculate gravitational potential energy by using the equation .

a)

GPE = 1/2m x 1/2h

b)

GPE = m x 9.8 N/m x h

c)

GPE = h x 9.8 N/m

d)

GPE = 1/2 h x w

56.

Increasing the speed of an object its potential energy.

a)

does not affect

b)

increases

c)

decreases

d)

changes

57.

Increasing the speed of an object its kinetic energy.

a)

does not affect

b)

increases

c)

decreases

d)

changes

58.

The thermal energy of an object is .

a)

its potential energy

b)

its average kinetic energy

c)

its potential energy minus its kinetic energy

d)

its kinetic energy plus its potential energy

59.
A north pole and a south pole will attract.
a)
True
b)
False
60.
If you place the North pole of a magnet next to the South pole of another magnet, they will:
a)
Attract
b)
Repel
c)
Do nothing
d)
Shatter
61.
Magnetism is generated by moving
a)
protons.
b)
electrons.
c)
neutrons.
d)
elements.
62.
What do the lines around this magnet represent?
a)
North Pole
b)
South Pole
c)
Magnetic Declination
d)
Magnetic Field
63.
On Earth, where is Magnetic North approximately located?
a)
The Equator
b)
The North Pole
c)
The South Pole
d)
New Brighton
64.
As the distance between two magnets increases (they get farther apart), the force between them:
a)
Increases
b)
Decreases
c)
Stays the Same
65.
If you cut a magnet in half, what happens to the poles?
a)
One half gets the North Pole, the other half gets the South Pole
b)
Both halves get only a North Pole
c)
Both halves get only a South Pole
d)
Both halves get a North pole and a South Pole
66.
A paper clip is an example of a:
a)
magnetic material
b)
permanent magnet
c)
bar magnet
d)
insulator
67.
Magnetic force can pass through many materials (paper, plastic, etc.)
a)
True
b)
False
68.
If the North Pole of a permanent magnet is placed next to a compass as seen in the picture, which direction will the needle move?
a)
Clockwise
b)
Counter-clockwise
c)
It will not move
d)
Need more information
69.
An electromagnet's poles may be reversed by:
a)
decreasing the voltage of the coil
b)
increasing the number of coils
c)
changing the direction of current flow
d)
altering the material used to make the coils
70.
A device that is able to reverse the direction of current in an electromagnet causing a motor to spin the opposite way is known as:
a)
a rotor
b)
a generator
c)
a magnet
d)
a commutator
71.
A device that is able to reverse the direction of current in an electromagnet causing a motor to spin the opposite way is known as:
a)
a rotor
b)
a generator
c)
a magnet
d)
a commutator
72.
Where could you hold a south pole of a permanent magnet to get the rotor to move counter-clockwise?
a)
A & B
b)
B & C
c)
A & C
d)
B & D
73.
Magnetism is a type of ____________
a)
force
b)
book
c)
plant
d)
animal
74.
When two magnets attract, they ______________
a)
push apart
b)
change color
c)
get colder
d)
pull together
75.
When two magnets repel, they ________________
a)
change color
b)
pull together
c)
push apart
d)
get colder
76.
What would we call a nail that can pick up a paperclip because it is touching a magnet?
a)
temporary magnet
b)
poles
c)
force
d)
detector
77.
The force of magnetism is stronger when magnets are ________________
a)
cold
b)
round
c)
closer together
d)
farther apart
78.
What kind of magnet can be turned on and off?
a)
refridgerator magnet
b)
electromagnet
c)
magnetite
d)
iron
79.
What is an electromagnet?
a)
a magnet that creates an electric current
b)
a magnet created by an electric current
c)
a magnet that has an electric charge
d)
an electric charge that is magnetic
80.
The strongest point on a magnet is located
a)
In the magnetic field
b)
Center of the magnet
c)
At the Poles (close)
d)
At the Poles (further away) 
81.
2 ways to increase the magnetic force of an electro-magnet
a)
Increase the current flow, reduce the number of coils
b)
Increase the voltage, decrease the number of coils
c)
Increase the number of coils and the current flow
d)
Spread out the coils, replace iron core with rubber.
82.
The groups of atoms which can align to create a magnet are called ________.
a)
domains
b)
magnetic units
c)
molecules
d)
electrons
83.
A material in which electrons are able to move easily is called
a)
Insulators
b)
Conductors
84.
Which on the following is NOT an example of an insulator.
a)
Rubber
b)
Glass
c)
Penny 
d)
Wood
85.

The flow of electric charges is

Select all that apply

a)

voltage

b)

current

c)

resistance

d)

electricity

86.
A closed path that electric current flows is a
a)
circuit
b)
series circuit
c)
parallel circuit
87.
Which way do electrons flow?
a)
Positive to Negative
b)
Negative to Positive
88.
Which of the following is not a source of electricity 
a)
Windmills
b)
Batteries
c)
wires
d)
Hydroelectric dams
89.
What is the unit of measurement for current
a)
Ohm's
b)
Amperes
c)
Volts
90.
The job of the electron is to ...?
a)
Control which way the current flows.
b)
Use electricity in a circuit
c)
Carry electricity around a circuit
91.
What it the formula to find voltage. 
a)
I= V/R
b)
R=V/I
c)
V= I x R 
92.
In a parallel circuit with 2 lightbulbs, if you take out one lightbulb what will happen to the rest?
a)
They will all go out.
b)
The other one will stay on 
93.
What kind of circuit does the picture show?
a)
Series Circuit
b)
Parallel Circuit
94.
What kind of picture does the picture show? 
a)
Closed/Complete
b)
Open/Incomplete
95.
What kind of circuit dow the picture show?
a)
Parallel Circuit
b)
Series Circuit
96.
What kind of circuit does the picture show?
a)
Series 
b)
Parallel
97.
What is the unit of measurement for resistance?
a)
Amperes
b)
Ohm's
c)
Volts
98.
What is static electricity?
a)
the flow of electric charges
b)
the build-up of an electrical charge on a surface.
c)
the opposition of current flow. 
99.

In a series circuit what happens when you add another bulb?

a)

The bulbs gets brighter

b)

The bulbs gets dimmer

c)

Nothing changes

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