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Weekly Test -3 - Magnetism

Total questions: 65

Worksheet time: 45mins

Name
Class
Date
1.

Magnetism is a charge

a)

True

b)

False

2.

Magnetism is a force of repulsion or attraction caused by movement of charged particles.

a)

True

b)

False

3.

Magnetic poles can be isolated

a)

True

b)

False

4.

A freely suspended magnet points in a east-west direction

a)

True

b)

False

5.

When a magnet breaks in half, one end will have north pole and the other end will have a south pole

a)

True

b)

False

6.

A magnet has to touch a paper to attract it

a)

True

b)

False

7.

The space around a magnet in which a magnetic force is exerted is called a magnetic field

a)

True

b)

False

8.

You can see and touch a magnetic field

a)

True

b)

False

9.

Earth is a huge magnet

a)

True

b)

False

10.

ALL metals are attracted to magnets?

a)

True

b)

False

11.

What types of metals are attracted to a magnet?

a)

Steel

b)

Iron

c)

Nickel

d)

All of the above are attracted to magnets

12.
What will happen when these magnets are brought close together?
a)
They will attract each other.
b)
They will repel each other.
c)
Both magnets will turn to the left
d)
Both magnets will turn to the right
13.

WHERE is the strongest attraction force of the magnet?

a)

at the poles

b)

in the middle

c)

above the magnet

d)

below the magnet

14.

Which object would a magnet attract?

a)

a glass bottle

b)

a piece of paper

c)

a steel paper clip

d)

a rubber eraser

15.
A magnet will attract scissors if the scissors contain: 
a)
copper
b)
aluminum
c)
gold
d)
nickel
16.
What do the lines around this magnet represent?
a)
North Pole
b)
South Pole
c)
Magnetic Declination
d)
Magnetic Field
17.
Which is not a property of all magnets?
a)
Has a magnetic field
b)
exerts forces
c)
has 2 magnetic poles
d)

has 2 geographic poles

18.
Inside of magnets there are tiny magnets called _______
a)
atoms
b)
domains
c)
mini magnets
19.
If the end of an unknown magnet sticks to a magnet pole labeled "North" the unknown end must be...
a)
North
b)
South
c)
East 
d)
West
20.
Electricity can be used to create a magnet
a)
True
b)
False
21.
A Magnet can be used to create electricity
a)
True
b)
False
22.

Magnetism is a force of ____________________________ that occurs between two _____________ objects.

a)

attraction or repulsion, magnetic

b)

external or internal, magnetic

c)

external or repulsion, electronic

d)

attraction or internal, electronic

23.

The magnetic ____________ around a bar magnet is shown above.

a)

legs

b)

flowers

c)

field

d)

direction

24.

In magnetic materials, all of the ________ are pointing in the same direction.

a)

doors

b)

electrons

c)

domains

d)

orbits

25.

Every magnet has both a _________ pole and a __________ pole.

a)

North, South

b)

East, West

c)

Positive, Negative

d)

Positive, South

26.

Some objects that normally aren't magnetic can become magnetized when connected to a circuit. Items that are magnetized in this way are called ________.

a)

electromagnets

b)

electrons

c)

electrochromic devices

d)

permanent magnets

27.

Although magnetic fields are _____________, one common way that people investigate them is to use ________ filings.

a)

invisible, iron

b)

touchable, iron

c)

invisible, plastic

d)

touchable, plastic

28.
A magnet cannot not move which of the following objects?
a)
a paper clip
b)
a nail
c)
a toothpick
d)
a staple
29.
How is a permanent magnet DIFFERENT from a temporary magnet?
a)
A permanent magnet attracts materials made of iron.
b)
A permanent magnet has poles.
c)
A permanent magnet has a magnetic field.
d)
A permanent magnet keeps its magnetism for a long time.
30.
When two magnets attract, they ______________
a)
push apart
b)
change color
c)
get colder
d)
pull together
31.
When two magnets repel, they ________________
a)
change color
b)
pull together
c)
push apart
d)
get colder
32.
What characteristics do magnetic substances have?
a)
They can give you a "shock" when you touch them
b)
They can push or pull objects without touching them
c)
They are always black and cold to touch
d)
They fall faster than other objects when you drop them
33.
Magnetism is generated by moving
a)
protons.
b)
electrons.
c)
neutrons.
d)
elements.
34.
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
35.

What are the microscopic regions of atoms with a commonly aligned magnetic field called?

a)

micromagnets

b)

amps

c)

magnetic zones

d)

magnetic domains

36.
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
37.
NICKEL
Magnetic or
Non-Magnetic?
a)
magnetic
b)
non-magnetic
38.
GLASS
Magnetic or Non-Magnetic?
a)
magnetic
b)
non-magnetic
39.
As the distance between two magnets increases (they get farther apart), the force between them:
a)
Increases
b)
Decreases
c)
Stays the Same
40.
In un-magnetized materials the domains are __________ aligned.
a)
super
b)
slightly
c)
randomly
d)
always
41.

Which statement is true?

a)

All Magnets have a North and South Pole

b)

All magnets can attract large objects

c)

Magnets can not pull through Solids.

d)

All Magnets have the Same shape and Size

42.
What subatomic particle causes magnetism in an atom? 
a)
protons
b)
neutrons
c)
electrons
d)
nucleus
43.
Which metals are attracted to magnets? 
a)
iron, nickel, cobalt
b)
gold, silver, platinum
c)
copper, magnesium, aluminum
44.
This substance is
a)
magnetized
b)
unmagnetized
c)
positively charged
d)
negatively charged
45.
You know this substance is magnetized because
a)
all the domains have right angles
b)
the arrows are drawn in red
c)
the domains are aligned
d)
the domains are random
46.

Magnetic field lines always connect _________ poles

a)

Like

b)

Opposite

47.

Which image shows magnets being attracted to each other?

a)
b)
48.

The earth's north pole is the magnetic _____________

a)

North

b)

South

c)

East

d)

West

49.

Magnetic field lines always go from the ____________ to the ___________

a)

South to south

b)

North to north

c)

North to south

d)

South to north

50.

All magnets are affected by Earth's magnetic field

a)

True

b)

False

51.

A ________ is a device that has a magnet on a needle that spins freely. It is used for navigation because its needle usually points north.

a)

calculator

b)

ruler

c)

compass

d)

map

52.

The geomagnetic North pole is near the geographic southepole

a)

True

b)

False

53.

The geomagnetic South pole is near the geographic south pole

a)

True

b)

False

54.

The magnetic induction line of the geomagnetic field starts from the north pole and returns the the south pole

a)

True

b)

False

55.

______is the first country in the world where people began to study the magnetic phenomenon.

a)

China

b)

USA

c)

Egypt

d)

Canada

56.

The magnetic field of the Earth...

a)

reaches from the core all the way out into space

b)

is only at the North pole

c)

is only at the South pole

d)

None of the above

57.

Name 4 characteristics of magnets

4 lines
58.

lodestone, pyrrhotite, columbite and basalt are

a)

man - made magnets

b)

Natural magnets

c)

Temporary magnets

d)

Plastic Magnets

59.
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
60.

Like poles _____________each other, while unlike poles_______ each other.

(a)  

61.

(a)   magnets retain their properties only for a short period of time.

62.

All (a)   magnets are permanent magnets.

63.

Iron, nickel and cobalt are (a)   materials

64.

Opposite poles/ Unlike poles (a)   each other.

65.

Same poles/like pole (a)   each other.

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