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#022 Ch.2 Test Review

Total questions: 50

Worksheet time: 51mins

Name
Class
Date
1.

The relationship between electricity and magnetism is called

a)

Electrical Energy

b)

Induced Current

c)

Electromagnetism

d)

Ferromagnetism

2.

A magnet is attracted to a soup can because the can has

a)

A north pole

b)

A south pole

c)

A magnetic Field

d)

Iron in it

3.

What happen if you bring a north pole and a south pole together?

a)

The Repel

b)

They Attract

c)

The pull apart

d)

None of the Above

4.

Which direction does the magnetic field move towards?

a)

South to North

b)

North to South

c)

Left to Right

d)

Magnetic Fields to not move towards anywhere

5.

The magnetic field is strongest at the poles, where the field lines are most concentrated?

a)

True

b)

False

6.

If you bring two north poles together, or two south poles together, they attract and the magnets stick together?

a)

True

b)

False

7.

Which direction does the needle of a compass point to?

a)

North

b)

South

c)

East

d)

West

e)

None of the above

8.

How can you make an Electromagnet stronger?

a)

Change the shape

b)

Add more coils

c)

Make the current higher

d)

All of the above

9.

What can we use to find the shape of a magnetic field?

a)

Compass

b)

Cobalt

c)

Steel

d)

Iron filings

10.
Like poles on a magnet
a)
attract
b)
repel
11.
Unlike poles on a magnet
a)
repel
b)
attract
12.
The Earth produces its own magnetic field.  True or false?
a)
False
b)
True
13.
What is magnetism?
a)
invisible objects coming together
b)
a force that either attracts or repels certain materials
c)
full of electricity
d)
metals
14.
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
15.
What are the ends of a magnet called?
a)
East and west poles
b)
Left and Right ends
c)
North and South ends
d)
North and South poles
16.
Any material that attracts iron or materials containing iron is a(n) 
a)
A. electric generator
b)
B. solenoid
c)
C. magnet
d)
D. magnetic force
17.
What kind of magnet can be turned on and off?
a)
refridgerator magnet
b)
electromagnet
c)
magnetite
d)
iron
18.
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.
19.
Which of the following is NOT part of an electromagnet?
a)
Wire
b)
Iron
c)
Toothpick
d)
Power source
20.
Using more coils increases the strength of the electromagnet.
a)
true
b)
false
21.
Surrounding every magnet is a __________  __________.
a)
magnetic field
b)
electrical current
c)
another magnet
d)
an enemy
22.
When a magnet attracts an object, it ________ the object.
a)
pushes
b)
spins
c)
pulls
d)
turns
23.
If a magnet attracts a paperclip, the paperclip must be made of __________.
a)
plastic
b)
rocks
c)
copper
d)
iron
24.
What will occur if opposite poles of a magnet or electromagnet are brought near each other?
a)
The poles will repel
b)
The poles will attract
c)
The poles will do nothing
d)
The magnets will become stronger
25.
What is true about magnets and electromagnets?
a)
Magnets are attracted to wood
b)
Magnets do not attract other magnets
c)
Magnets repel objects that are made of iron
d)
Magnets have a north pole and a south pole
26.
What is force?
a)
How close or far away something is
b)
how large or small something is
c)
a push or pull on an object
d)
to change the shape of an object
27.
Why would a magnet attract a paperclip but not a penny?
a)
Magnets only attract to silver objects
b)
magnets are not attracted to all kinds of metal.
c)
Magnets do not attract to round objects
d)
Magnets do not attract to objects that are orange. 
28.
_______ magnets have a North pole and a South pole.
a)
No
b)
Some
c)
All
d)
Broken
29.
A south pole of a magnet will ATTRACT the north pole of another magnet. T/F
a)
True
b)
False
c)
none of the above
d)
none of the above
30.
A compass needle points north because ________. 
a)
ships need it to navigate
b)
it is a magnet
c)
none of the above
d)
shields from cosmic rays
31.
When like poles are brought together, they __________each other.
a)
attract
b)
pull on
c)
repel
d)
none of the above
32.

The process of generating an electric current from the motion of a conductor through a magnetic field.

a)

Electromagnetic Induction

b)

Direct Current

c)

Taco Bell

d)

The "Force"

33.
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 
34.
Generators are devices that convert _____ energy into _____ energy.
a)
chemical; mechanical
b)
mechanical; electrical
c)
electrical; mechanical
d)
potential; kinetic
35.
What happens to the strength of an electromagnet as you add more coils around it?
a)
Increases
b)
Decreases
c)
Stays the same
d)
Stops completely
36.
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
37.
What type of energy comes OUT of a generator?
a)
Mechanical
b)
Electrical
c)
Thermal
d)
Potential
38.
The area of magnetic force around a magnet is known as its 
a)
magnet
b)
magnetic area
c)
magnetism
d)
magnetic field
39.
A coil of wire with a current is called 
a)
spring
b)
solenoids
c)
magnet
d)
current
40.
A solenoid with a ferromagnetic core is called a
a)
battery
b)
solenoid
c)
magnet
d)
electromagnet
41.

Explain what Oersted conclude from his experiment?

a)

Compasses be trippin'

b)

An electric current produces a magnetic field

c)

That corn heated to a certain temperature will produce popcorn

d)

Magnetism has a direct relationship with our ability to produce high-quality electricity

42.

You can increase the strength of an electromagnet in 4 ways:

a)

Increase the current in the solenoid

b)

Add more loops of wire to the solenoid

c)

A static friction to the solenoid of the hippocampus producing closer field lines

d)

Use a material more magnetic than iron for the core

43.

The ability to move an object over a distance

a)

Energy

b)

Friction

c)

Force

d)

Carpooling

44.

The energy associated with electrical currents

a)

Electrical Energy

b)

Mechanical Energy

c)

Potential Energy

d)

Definitely not this one

45.

The energy an object has due to its movement or position

a)

Mechanical Energy

b)

Electrical Energy

c)

Energy^2 (squared)

d)

Potential Energy

46.

When a wire with a current is placed in a magnetic field, electrical energy transforms into

a)

Electrical Energy

b)

Mechanical Energy

c)

Kinetic Energy

d)

Potential Energy

47.

Which coil has more loops in a step-down transformer?

a)

Primary

b)

Secondary

c)

Tertiary

d)

Quatinary

48.

Which coil has more loops in a step-up Transformer?

a)

Primary

b)

Secondary

c)

Tertiary

d)

Quaternary

49.

What do electric generators do

a)

transform mechanical energy to electrical energy

b)

transform mechanical energy to sound

c)

transform electrical energy to mechanical energy

d)

transform electrical energy to potential energy

50.

What type of device can increase and decrease voltage?

a)

Generators

b)

Transformers

c)

Galvanometers

d)

Electric motors

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