Question 1

When freely suspended, a magnet will come to rest aligned with the magnetic field linking

Accepted Answer

A)   True North and True South
B)   Magnetic North and Magnetic SouthC) A) and B)
D) undefined B

Question 2

When a magnet's 'domains' are all aligned, the magnet is said to be

Accepted Answer

A)   hard'
B)   permanent'
C)   saturated'D) All of the above
E) None of the above

Question 3

Hard' magnetic materials are used to make __________ magnets

Accepted Answer

A)   permanent
B)   temporaryC) A) and B)
D) undefined

Question 4

The magnetic poles of a magnet are named after

Accepted Answer

A)   the directions in which they point
B)   the magnetic polarities that attract themC) A) and B)
D) undefined

Question 5

The 'direction' of magnetic flux lines is defined in terms of the direction in which __________ when placed within the magnetic field

Accepted Answer

A)   an isolated positive charge will move
B)   an isolated negative charge will move
C)   a compass needle will pointD) None of the above
E) All of the above

Question 6

The 'direction' of magnetic flux lines is defined as

Accepted Answer

A)   north to south
B)   south to northC) A) and B)
D) undefined A

Question 7

When a magnet is broken in two, the result is

Accepted Answer

A)   two, separate, magnets
B)   two magnets, each having just one pole
C)   two magnets with like poles
D)   the loss of the magnetic fieldE) C) and D)
F) A) and B)

Question 8

The intensity of a magnetic field is termed its __________, whose SI unit is the __________

Accepted Answer

A)   flux density, tesla
B)   flux density, weber
C)   magnetic field strength, tesla
D)   magnetic field strength, weberE) A) and D)
F) All of the above

Question 9

Sprinkling iron filings over a sheet of card resting on a magnet will reveal

Accepted Answer

A)   the polarity of the magnet's poles
B)   the direction of the magnet's flux lines
C)   the pattern formed by the magnet's magnetic fieldD) A) and B)
E) A) and C)

Question 10

Steel is generally considered to be a '__________' magnetic material, and can be used to make __________ magnets

Accepted Answer

A)   hard, temporary
B)   hard, permanent
C)   soft, temporary
D)   soft, permanentE) B) and D)
F) None of the above

Question 11

Soft iron is generally considered to be a '__________' magnetic material, and can be used to make __________ magnets

Accepted Answer

A)   hard, temporary
B)   hard, permanent
C)   soft, temporary
D)   soft, permanentE) None of the above
F) A) and D)

Question 12

The term, 'Magnetic North', describes

Accepted Answer

A)   a location near True North
B)   the magnetic polarity of a location near Magnetic NorthC) A) and B)
D) undefined A

Question 13

The area surrounding a magnet in which its effects may be observed is termed

Accepted Answer

A)   a magnetic field
B)   magnetic fluxC) A) and B)
D) undefined

Question 14

The fundamental law of magnetism states that 'like poles __________'

Accepted Answer

A)   attract each other
B)   repel each otherC) A) and B)
D) undefined

Question 15

Soft' magnetic materials are used to make __________ magnets

Accepted Answer

A)   permanent
B)   temporaryC) A) and B)
D) undefined

Question 16

The magnetic polarity of Magnetic North is a

Accepted Answer

A)   north pole
B)   south poleC) A) and B)
D) undefined

Question 17

Hard' magnetic materials are __________ to magnetise, and __________ their magnetism once the external magnetising force is removed

Accepted Answer

A)   easy, lose
B)   easy, retain
C)   hard, lose
D)   hard, retainE) None of the above
F) C) and D)

Question 18

The end of a compass needle which points to Magnetic North is a

Accepted Answer

A)   north magnetic pole
B)   a south magnetic poleC) A) and B)
D) undefined

Question 19

The poles of an unmarked magnet can be identified using a compass, which will always point to the magnet's

Accepted Answer

A)   north pole
B)   south poleC) A) and B)
D) undefined

Question 20

Soft' magnetic materials are _________ to magnetise, and __________ their magnetism once the external magnetising force is removed

Accepted Answer

A)   easy, lose
B)   easy, retain
C)   hard, lose
D)   hard, retainE) B) and D)
F) B) and C)

Exam 12: Magnetism

When freely suspended, a magnet will come to rest aligned with the magnetic field linking

Correct AnswerverifiedB

When a magnet's 'domains' are all aligned, the magnet is said to be

Correct AnswerverifiedShow Answer

Hard' magnetic materials are used to make __________ magnets

Correct AnswerverifiedShow Answer

The magnetic poles of a magnet are named after

Correct AnswerverifiedShow Answer

The 'direction' of magnetic flux lines is defined in terms of the direction in which __________ when placed within the magnetic field

Correct AnswerverifiedShow Answer

The 'direction' of magnetic flux lines is defined as

Correct AnswerverifiedA

When a magnet is broken in two, the result is

Correct AnswerverifiedShow Answer

The intensity of a magnetic field is termed its __________, whose SI unit is the __________

Correct AnswerverifiedShow Answer

Sprinkling iron filings over a sheet of card resting on a magnet will reveal

Correct AnswerverifiedShow Answer

Steel is generally considered to be a '__________' magnetic material, and can be used to make __________ magnets

Correct AnswerverifiedShow Answer

Soft iron is generally considered to be a '__________' magnetic material, and can be used to make __________ magnets

Correct AnswerverifiedShow Answer

The term, 'Magnetic North', describes

Correct AnswerverifiedA

The area surrounding a magnet in which its effects may be observed is termed

Correct AnswerverifiedShow Answer

The fundamental law of magnetism states that 'like poles __________'

Correct AnswerverifiedShow Answer

Soft' magnetic materials are used to make __________ magnets

Correct AnswerverifiedShow Answer

The magnetic polarity of Magnetic North is a

Correct AnswerverifiedShow Answer

Hard' magnetic materials are __________ to magnetise, and __________ their magnetism once the external magnetising force is removed

Correct AnswerverifiedShow Answer

The end of a compass needle which points to Magnetic North is a

Correct AnswerverifiedShow Answer

The poles of an unmarked magnet can be identified using a compass, which will always point to the magnet's

Correct AnswerverifiedShow Answer

Soft' magnetic materials are _________ to magnetise, and __________ their magnetism once the external magnetising force is removed

Correct AnswerverifiedShow Answer

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B

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A

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The intensity of a magnetic field is termed its , whose SI unit is the

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Steel is generally considered to be a '' magnetic material, and can be used to make magnets

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Soft iron is generally considered to be a '' magnetic material, and can be used to make magnets

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A

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Hard' magnetic materials are to magnetise, and their magnetism once the external magnetising force is removed

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Soft' magnetic materials are _ to magnetise, and __ their magnetism once the external magnetising force is removed

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