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Fall sem Review #4 2023

Total questions: 111

Worksheet time: 1hrs 29mins

Name
Class
Date
1.
The buildup of charges on an object is called
a)
static discharge
b)
positive charge
c)
static electricity
d)
negative charge
2.
According to Ohm’s law, resistance is equal to voltage divided by
a)
time
b)
conduction
c)
current
d)
potential
3.
A complete, unbroken path through which electric charges can flow is a(n)
a)
electric circuit
b)
electrical resistance
c)
magnetic field line
d)
magnetic pole
4.
Materials through which charge can flow easily are called
a)
insulators
b)
resistors
c)
conductors
d)
magnets
5.
An example of an insulator is
a)
rubber
b)
copper
c)
silver
d)
iron
6.
The unit of measure for voltage is the 
a)
Volt
b)
Amp
c)
Ohm
7.
The unit for resistance is the 
a)
ohm
b)
amp
c)
volt
d)
cenitmeter
8.
As the temperature of a conductors increases , the resistance ___________.
a)
increases 
b)
decreases 
c)
stays the same 
9.
Magnetic field lines around a bar magnet..........................
a)
are only perpendicular to the magnet.
b)
spread out from one pole and curve around to the other.
c)
cross back and forth over one another
d)
are perfectly straight
10.
Every magnet, regardless of its shape, has two.....
a)
magnetic poles.
b)
magnetic fields.
c)
magnetic charges
d)
magnetic needles
11.
Magnetic poles that are unlike......
a)
attract each other.
b)
repel each other.
c)
do not interact.
d)
point in the same direction.
12.
You can increase the strength of an electromagnet’s field by......
a)
decreasing the current in the solenoid.
b)
decreasing the number of loops in the solenoid.
c)
using a more magnetic material for the core.
d)
winding the coils more loosely.
13.
As Earth’s magnetic poles move, the magnetic declination in a given location will......
a)
stay the same
b)
change
c)
switch to point south
d)
return to zero
14.
An electric current produces a(n)
a)
magnetic field
b)
solenoid.
c)
gravitational field
d)
insulator.
15.
A magnetic pole is the part of a magnet where the magnetic force is the __________.
a)
weakest
b)
strongest
c)
uniform
d)
the same
16.
A compass behaves as it does because the _________ acts as a giant magnet.
a)
sun
b)
moon
c)
earth
d)
astroid belt
17.
Increasing the # of loops in a solenoid will cause the strength its magnetic field to __________
a)
decrease
b)
increase
18.
Is this a solenoid or electromagnet ?
a)
Solenoid 
b)
Electromagnet
19.
Electrical energy is transformed into mechanical energy in a................
a)
electric motor
b)
solenoid
c)
electromagnet
d)
transformer
20.
The relationship between electricity and magnetism is called..................
a)
electrical energy
b)
induced current
c)
electromagetism
d)
ferromagnetic
21.
A coil of of wire with no object within the coils is called a solenoid.......
a)
True
b)
False
22.
__________is an imbalance of electric charges within or on the surface of a material that builds up.
a)
static electricity
b)
current electricity
c)
circuits
d)
load
23.
A pathway for electricity to travel is called___________
a)
current
b)
static electrcity
c)
circuit
d)
circle
24.
A continuous flow of electricity is called_____________
a)
series
b)
circuit
c)
static
d)
current
25.
What kind of circuit is this?
a)
series
b)
parallel
26.
In a parallel circuit if one light bulb goes OUT; then they ALL go out. TRUE OR FALSE?
a)
TRUE
b)
FALSE
27.
How do you make an electromagnet stronger?
a)
Add a motor and/or lightbulbs
b)
Add more light bulbs and/or wire coils
c)
add more wire coils and/or a switch
d)
add more wire coils and/or batteries
28.
What is a switch's function in a circuit?
a)
to make the current hotter or colder
b)
turn on and off the flow of current
c)
the pathway that current flows
d)
to add more power to the circuit
29.
When socks get stuck to towels in your dryer, this is an example of________________
a)
current electricity
b)
static electricity
30.
When two magnets repel each other which poles are facing each other?
a)
North and South
b)
South and North
c)
North and North
d)
Positive and Negative
31.
When is an object negatively charged?
a)
When it gains electrons
b)
When it gains protons
c)
When it loses electrons
d)
When it has more neutrons
32.
What happens to the magnetic force as an object gets further away from the magnetic field?
a)
The force increases
b)
The force decreases
c)
The force stays the same
d)
There was no force to begin with
33.
What is a conductor?
a)
A material that stops electric current from flowing
b)
A material that allows electric current to flow easily
34.
Which is an example of a conductor?
a)
Glass
b)
Plastic
c)
Copper
d)
Wood
35.
What is an insulator?
a)
A material that DOES NOT allow electric current to flow
b)
A material that DOES allow electric current to flow
36.
Which is an example of an insulator?
a)
Rubber
b)
Copper
c)
Iron
d)
Steel
37.
What particles of an atom are attracted to each other? 
a)
Protons and Electrons
b)
Electrons and Electrons
c)
Protons and Protons
d)
Electrons and Neutrons
38.
How are the domains of a magnet organized?
a)
The domains are very weak
b)
The domains are all mixed up
c)
The domains all point in the same direction
d)
There are no domains
39.
How do you increase the strength of an electromagnet?
a)
Decrease the number of batteries and increase the number of coils
b)
Increase the electric current and decrease the batteries
c)
You cannot strengthen an electromagnet
d)
Increase the electric current and increase the number of coils
40.
Ms Jo Jo rubbed two balloons with a piece of wool. What will happen when the balloons are brought near each other?
a)
The balloons will repel each other.
b)
The balloons will attract each other.
c)
The balloons will become positively (+) charged.
d)
The balloons will pop.
41.
When socks get stuck to towels in your dryer, this is an example of________________
a)
current electricity
b)
static electricity
42.
Which of the following is caused by static electricity?
a)
a stove getting hot when it is turned on
b)
a magnet being attracted to a refrigerator
c)
a lightning strike during a storm
d)
a light bulb coming on when a switch is turned on
43.

Where is a magnetic field the strongest?

a)

at both poles

b)

in the middle

c)

at the south seeking pole

d)

at the north seeking pole

44.

Why does a compass needle point in a north south direction

a)

the needle reacts to the earth's magnetic poles

b)

the needle forms an electromagnet with Earth's poles

c)

the needle is lightweight, so it always spins to the south

d)

the needle is pulled in the middle by Earth's equator

45.

The ground has a positive charge. what type of charged particle will collect near the bottom of a cloud before it creates lightning?

a)

neutral particles

b)

positive particles

c)

negative particles

d)

both positive and negative particles

46.
The relationship between electricity and magnetism is called..................
a)
electrical energy
b)
induced current
c)
electromagetism
d)
ferromagnetic
47.
A particle that carries a negative electric charge is called a(n) ______.
a)
neutron
b)
atom
c)
proton
d)
electron
48.

The region in which a magnetic force acts is called a

a)

line of force

b)

pole

c)

magnetic field

d)

field of attractio

49.

A coiled current carrying wire is called

a)

an electromagnet

b)

a solenoid

c)

a compass

d)

a ferromagnet

50.

Unlike poles of different magnets

a)

attract each other

b)

cancel each other out

c)

repel each other

51.

The magnetic field is strongest

a)

at the poles

b)

in the middle

c)

at the north pole

d)

at the south pole

52.

THe north end of a compass needle always points to

a)

our geographic north pole

b)

our geographic south pole

c)

our magnetic north pole

d)

our magnetic south pole

53.

Earth acts like a magnet because its core contains

a)

molton carbon

b)

solid nickel and iron

c)

rocks

d)

molten nickel and iron

54.

Which of the following would be an example of an insulator?

a)

iron

b)

aluminum

c)

rubber

d)

silver

55.

The rule of charged particles states that

a)

opposites attract

b)

opposites repel

c)

opposites don't interact

d)

likes attract

56.

These are responsible for the flow of electricity

a)

protons

b)

electrons

c)

neutrons

d)

wires

57.

Conduction is the transfer of electric charges by

a)

interaction of electric fields

b)

direct contact

c)

rubbing

d)

jumping

58.

If the magnets above were brought close together they would…

a)

attract each other with a a strong force

b)

repel each other with a strong force

c)

attract each other with a weak force

d)

repel each other with a weak force

59.

Which position of the two magnets results in the greatest attraction between them?

a)

A

b)

B

c)

C

d)

D

60.

Charging by rubbing is called

a)

friction

b)

induction

c)

conduction

d)

polarization

61.

Induction is the charging of an object through

a)

direct contact

b)

rubbing

c)

interaction of electric fields

d)

pugging it in

62.
A particle that carries a negative electric charge is called a(n) ______.
a)
neutron
b)
atom
c)
proton
d)
electron
63.
When you charge an electroscope by touching it with a charged balloon, the process is called _____.
a)
friction
b)
conduction
c)
induction
d)
grounding
64.
A neutral object becomes negatively charged when it loses electrons.
a)
true
b)
false
65.
Conduction is the process of charging an object without touching it.
a)
true
b)
false
66.
What do the lines around this magnet represent?
a)
North Pole
b)
South Pole
c)
Magnetic Declination
d)
Magnetic Field
67.
As the distance between two magnets increases (they get farther apart), the force between them:
a)
Increases
b)
Decreases
c)
Stays the Same
68.
What kind of magnet can be turned on and off?
a)

refridgerator magnet

b)

electromagnet

c)

magnetite

d)

iron

69.

How can the strength of an electromagnet be increased? (mark all that apply)

a)

increase the current flowing through the coil

b)

increase the number of coils

c)

add an amplifier to it

d)

put iron core inside the coil

70.

Which electromagnet is stronger?

a)

A

b)

B

71.

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

72.
Magnetic poles that are unlike......
a)

attract each other.

b)

repel each other.

c)

do not interact.

d)

point in the same direction.

73.
The relationship between electricity and magnetism is called..................
a)
electrical energy
b)
induced current
c)
electromagetism
d)
ferromagnetic
74.

How do objects become positively charged?

a)

They gain electrons

b)

They lose electrons

c)

Rubbing or Friction

75.

How do objects become negatively charged?

a)

They gain electrons

b)

They lose electrons

c)

Rubbing or Friction

76.

The size or quantity of something

a)

Magnetic Force

b)

Magnitude

c)

Electromagnetic Force

d)

Current

77.

As the distance between magnets increases-the attraction between them will

a)

Decrease

b)

Stay the Same

c)

Increase

78.

How can the strength of an electromagnet increase?

a)

Remove the battery

b)

Remove loops (coils) of wire from around the iron nail

c)

Add more loops (coils) of wire around the iron nail

d)

Remove the iron nail, leaving only the coils of wire

79.

What is magnetic force?

a)

Attraction or repulsion that arises between electrically charged particles because of their motion

b)

How strong a magnet is

c)

Force resulting from interaction between electrically charged particles

d)

The size or quantity of something

80.

What will happen as an electron (-) gets closer to a proton (+)?

a)

The repulsion will be stronger.

b)

The attraction will be stronger.

c)

The attraction will be weaker.

d)

Nothing will happen to the electric field.

81.

What will happen if the north ends of two magnets are placed near each other?

a)

Both magnets will get weaker.

b)

They will repulse (repel) each other.

c)

They will attract each other.

d)

Nothing will happen.

82.

Displacement is the difference between your

a)

reference point and reference direction

b)

total distance traveled

c)

starting position and your final position

d)

average speed

83.

You ride your bike 10 miles East but then head West for 6 miles. What is your displacement?

a)

16 miles East

b)

4 miles East

c)

4 mile West

d)

6 miles West

84.

You are in a car that drives away from Beaver Stadium. How would you describe your motion relative to the stadium? To the car?

a)

Stadium- Not moving; Car- Moving away

b)

Stadium- Moving toward; Car- Not moving

c)

Stadium- Moving away; Car- Moving closer

d)

Stadium- Moving away; Car- Not moving

85.

Suppose you travel 10 miles East on your bike from your house and then 6 miles West. If the reference direction is East, then what is final position relative to your house?

a)

+4 miles

b)

-4 miles

c)

+16 miles

d)

-6 miles

86.

An object's location or _______________ is the distance from a reference point.

a)

distance

b)

position

c)

acceleration

d)

displacement

87.

Which line on the graph represents the fastest constant speed?

a)

A

b)

B

c)

C

d)

They are all moving at the same speed.

88.

How would a distance-time graph appear for an object that is not moving?

a)

A line that curves upward

b)

A straight vertical line

c)

A straight horizontal line

d)

A line that goes up and to the right

89.

If the reference point is your home and you travel 5 miles to get to Quaker Steak and then come back home, what is the total distance traveled?

a)

5 miles

b)

10 miles

c)

0 miles

d)

25 miles

90.

An object that keeps getting faster away from a reference point on a distance-time graph will appear as a line that

a)

is straight and moves up and to the right.

b)

is straight and horizontal.

c)

curves downward (down and to the right).

d)

curves upward (up and to the right).

91.

How can you tell if an object is getting closer to a reference point using a distance-time graph?

a)

You cannot tell if an object is getting closer to a reference point.

b)

The line approaches the y-axis (distance decreases).

c)

The line approaches the x-axis (distance decreases).

d)

The line curves upward.

92.

How do we find distance?

a)

speed ÷ time

b)

speed x time

c)

time + speed

d)

time - speed

93.

How do we find time?

a)

distance x speed

b)

speed - distance

c)

distance ÷ speed

d)

speed + distance

94.

A toy car moved along a 1.2 km track in 6 min. Find the speed of the toy car.

a)

0.2 km/h

b)

1.2 m/min

c)

12 km/h

d)

200 m/h

95.

The location of a place or an object is called...

a)

position

b)

motion

c)

speed

d)

reference point

96.
A location to which you can compare other locations is called
a)
reference point
b)
motion
c)
location
d)
position
97.
The change of position over time is called
a)
position
b)
motion
c)
speed
d)
location
98.

True or False:

When determining position, you can use cardinal directions or general directions.

a)

true

b)

false

99.

Giving out descriptions of your location always helps you in identifying your ____________.

a)

Direction

b)

Reference point

c)

Position

d)

Distance

100.
 Jermaine runs exactly 2 laps around a 400 meter track. What is the displacement?
a)
800
b)
400
c)
0
d)
200
101.
A change in position or location
a)
Magnetism
b)
Gravity
c)
Position
d)
Movement
102.
How far an object has moved?
a)
displacement
b)
distance
c)
motion
d)
reference point
103.
 Jermaine runs exactly 2 laps around a 400 meter track. What is the displacement?
a)
800
b)
400
c)
0
d)
200
104.
A change in position or location
a)
Magnetism
b)
Gravity
c)
Position
d)
Movement
105.
How far an object has moved?
a)
displacement
b)
distance
c)
motion
d)
reference point
106.
An object is _____ if its position changes relative to another object.
a)
in motion
b)
at reset
c)
a frame of refence
d)
magical
107.
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
108.
An object’s position always depends on its what?
a)
Reference point
b)
Location
c)
Direction
d)
Distance
109.

Catherine's house is _________ of David's house.

a)

North

b)

South

c)

East

d)

West

110.

Dale Lane is _____________ of the Supermarket.

a)

North

b)

South

c)

East

d)

West

111.
What do u call a pig that knows KARATE?
a)
Porkchop
b)
kid pig
c)
KUNG FU
d)
kapig

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