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Gcse Phy Spec PAPER 2 > Magnetism And Electromagnetism > Flashcards

Magnetism And Electromagnetism Flashcards

1
Q

What are the poles of the magnet places where

A

The magnet forces are strongest

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2
Q

What happens when two magnets are brought together?

A

They exert a force-on each other

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3
Q

What is attraction and repulsion between two magnet poles examples of

A

Non- contact forc

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4
Q

What does a permanent magnet produce its own?

A

Magnetic field

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5
Q

What is an induced magnet?

A

It’s a material that becomes a magnet when placed in a magnetic field

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6
Q

What is induced magnetism?

A

Always a force of attraction

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7
Q

When removed from the magnetic field, what happens to an induced magnet?

A

It loses most or all of its magnetism quickly

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8
Q

What are the magnetic material?

A

Iron ,steel, cobalt and nickel

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9
Q

What is a magnetic field

A

the reingn around a magnet where a force acts on another magnet or a magnetic field

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10
Q

The force between a magnet, and a magnetic material is always what ?

A

One with attraction

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11
Q

What is the strength of a magnetic field depend on?

A

The distance from the magnet

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12
Q

Where is the field strongest at ?

A

The poles of the magnet

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13
Q

What is the direction of the magnetic field at any point given by?

A

The distance of the first would act on another north pole placed at that point

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14
Q

What does a magnetic compass contain?

A

A small bar magnet

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15
Q

What does the Earth have?

A

A magnetic field

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16
Q

What direction is the compass needle points

A

The direction of the earths magnetic field

17
Q

What happens when a current flows through a conducting wire ?

A

A magnetic field is produced around the wire

18
Q

What does a strength of the magnetic field around the wire depend on?

A

The current through the wire and the distance from the wire

19
Q

What does shaping a wire to form a solenoid increase?

A

The strength of the magnetic field created by occur through the wire. The magnetic field inside the solenoid is strong and uniform.

20
Q

Describe the magnetic field around a solenoid

A

It has a similar shape to that of a bar magnet

21
Q

What does adding iron core increase?in a soilnoid

A

Strength of the magnetic field

22
Q

What is a electromagnet

A

A soilnoid with an ion core

23
Q

What is the motor effect?

A

When a conductor carrying a current is placed in a magnetic field, the magnet producing the field and the conductor exert a force on each other

24
Q

How is magnetic flux density written as

A

B

25
Q

What is magnetic flux density meausured In

A

Tesla (T)

26
Q

What is the basis of an electric motor?

A

A coil of wire carrying a current in a magnetic field, tends to rotate

Gcse Phy Spec PAPER 2 (3 decks)

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