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WorksheetsSA 2 Fields
Total questions: 47
Worksheet time: 58mins
Name
Class
Date
1.
In a magnetic field, how doe the field lines travel?
a)
The field lines travel in random, unpredictable directions
b)
The field lines travel from the south pole to the north pole.
c)
The field lines travel from the north pole to the south pole.
d)
The field lines travel from the south pole out away from the magnet.
2.
Distance and mass are two factors that affect
a)
Gravitational Force Fields
b)
Magnetic Force Fields
c)
Electric Force Fields
d)
Electrostatic Force Fields
3.
To increase the strength of an electromagnet you should
a)
Increase the number of coils
b)
Increase the voltage of the battery
c)
Use an iron core
d)
All of the above
4.
Which is a factor that affects the strength of gravitational, magnetic, and electrical fields?
a)
Mass
b)
Volume
c)
Distance
d)
Density
5.
Which statement is true about magnetic forces?
a)
Distance does not affect the strength of the force field
b)
The charge of the magnet affects the strength of the force field.
c)
There is an east pole and west pole to every magnet
d)
Distance and the strength of the magnet affect the strength of the force field
6.
A soft metal core that becomes magnetic when an electric current passes through coils around the core
a)
Magnet
b)
Electromagnet
c)
Electricity
d)
Copper Wire
7.
How are electromagnets different from 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
8.
Surrounding every magnet is a __________ __________.
a)
magnetic field
b)
electrical current
c)
another magnet
9.
In order for an electromagnet to be formed, an __________ current must pass through a coil of __________ wrapped around an ________ core.
a)
wire, iron, electric
b)
electric, wire, iron
c)
iron, electric, wire
10.
Opposite magnetic forces _____ each other.
a)
Attract
b)
Repel
11.
This is a picture of a simple electromagnet. How can the electromagnet be made stronger?
a)
Add more coils of wire to the nail.
b)
Use a smaller battery.
c)
Reverse the poles of the magnet.
d)
Remove all the coils and the nail.
12.
The magnet's shown will
a)
not move
b)
attract
c)
repel
d)
all of the above
13.
The magnet's shown will
a)
not move
b)
attract
c)
repel
d)
all of the above
14.
What is Electromagnetic Induction?
a)
The process of generating current though a wire in a changing magnetic field
b)
A device with a negative and positive pole
c)
A magnet that doesn't stay magnetizes
d)
ALL OF THEM
15.
When magnet domains line up, the metal becomes what?
a)
magnetized
b)
unmagnitized
16.
Where is Earth's magnetic field strongest?
a)
Along the outside lines
b)
Along the inside lines on either side
c)
Where the lines are close together at the poles
d)
In the space outside of the lines
17.
Earth's magnetic field and a bar magnet attract particles to the same locations. Where are they?
a)
The middle
b)
All around the outside
c)
The north and south poles
d)
First to the middle, then to the ends
18.
Magnetic domains are a grouping of atoms that have their magnetic fields lined up in DIFFERENT directions.
a)
True
b)
False
19.
When domains are aligned, this means a magnet is formed.
a)
True
b)
False
c)
Smile
d)
Happy
20.
If a magnet is cut in half, there will be two magnets because each half contains _____
a)
Only a north pole
b)
charged particles
c)
domains
d)
none of the above
21.
A region of influence surrounding an object is best defined as:
a)
An electric field
b)
A field
c)
A force
d)
A gravitational field
22.
The electric field surrounding a positively charged object is
a)
Away from the charge
b)
Toward the charge
23.
The picture is an example of an:
a)
Electric circuit
b)
Electromagnet
c)
Electric nail
d)
Electric power cell
24.
You can make an electromagnet stronger by: having a __________________ current in the wire
a)
smaller
b)
larger
c)
greener
d)
water
25.
While electric current is flowing through a wire, what surrounds the wire?
a)
a magnetic field
b)
a glowing light
c)
neutrons
d)
protons
26.
Surrounding every magnet is a __________ __________.
a)
magnetic field
b)
electrical current
c)
another magnet
27.
In general for magnetic, gravity, and electric fields, as distance increases what happens to the strength of these fields?
a)
The strength doubles
b)
The strength triples
c)
The strength increases
d)
The strength decreases
28.
Electrical charges are either:
a)
Happy or sad
b)
Positive or negative
c)
North or south
d)
Up or down
29.
Why does the Earth have a magnetic field?
a)
Because of the liquid iron core transferring charged particles to the outer core.
b)
Because of Aliens.
c)
Because a stream of charged particles circle the earth.
d)
Because of intense weather patterns.
30.
When electrons flow through a wire, what is caused?
a)
Potential energy and a magnetic field
b)
Static electricity.
c)
Current and a magnetic field surrounding the wire.
d)
Thermal energy and flux.
31.
Q is a negatively charged particle. Which location, A, B, C, or D will experience the strongest charge?
a)
A
b)
B
c)
C
d)
D
32.
According to the image, this red particle is a ______ charged particle because the field lines are pointing away from it.
a)
Negatively
b)
Positively
33.
According to the image, what is true about negatively charged particles?
a)
The field lines point toward the particle.
b)
The field lines point away from the particle.
34.
A device that uses mechanical energy to generate electrical energy is called a:
a)
Motor
b)
Generator
c)
Turbine
d)
Transformer.
35.
A device that uses electrical energy to generate mechanical energy is called a:
a)
Motor
b)
Generator
c)
Turbine
d)
Transformer.
36.
Two factors effecting the magnitude of the force of gravity between 2 objects are...
a)
mass and distance
b)
mass and matter
c)
distance and weight
d)
weight and mass
37.
Gravity attracts all objects towards one another.
a)
False
b)
True
c)
It depends
d)
I don't care
38.
Any object with mass is surrounded by a gravitational field.
a)
True
b)
Fallse
c)
False
d)
Tru
39.
As distance between two objects increase the pull of gravity
a)
Increases
b)
Decreases
c)
Stays the same
40.
The force of gravity acting on an object is the object's ______.
a)
mass
b)
matter
c)
weight
d)
terminal velocity
41.
Which of the following will not change in different gravitational fields?
a)
weight
b)
force
c)
mass
d)
pounds
42.
Which of the following will change with different gravitational forces?
a)
mass
b)
amount of matter in an object
c)
weight
d)
kilograms
43.
Force of gravity is directly proportional to
a)
Mass
b)
Weight
c)
Distance
d)
Time
44.
A force of attraction between 2 object that is directly related to mass and indirectly related to distance.
a)
mass
b)
weight
c)
gravity
d)
kilogram
45.
As mass increases, what happens to gravitational force?
a)
increases
b)
decreases
c)
stays the same
d)
i don't know
46.
Two factors effecting the magnitude of the force of gravity between 2 objects are...
a)
mass and distance
b)
mass and matter
c)
distance and weight
d)
weight and mass
47.
Jupiter has about 317 times more mass than Earth. What can you infer from this fact?
a)
That Jupiter’s gravitational force is much weaker than on Earth’s gravitational force.
b)
That Jupiter’s gravitational force is much stronger than Earth’s gravitational force.
c)
That Jupiter’s and Earth’s gravitational forces are equal.
d)
Mass has no effect on the gravitational force between two objects
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