Magnetism

Question 1

The study of how a material moves if there are a presence of magnetic field and force.

Answer 1

Magnetism

Question 2

Region of magnetic material where magnetism occurs.

Answer 2

Magnetic Field

Question 3

Reason why there’s repulsion and attraction between objects.

Answer 3

Magnetic Force

Question 4

Any material that has the ability to attract metal, producing magnetic field, attracting unlike poles and repelling like poles.

Answer 4

Magnet

Question 5

It is the latin word of Magnet that is derived from “Magnesia”

Answer 5

Magnetite

Question 6

He is a shephered who discovered the natural magnet (Lodestone)

Answer 6

Magnes

Question 7

How many types of magnet are there?

Answer 7

Three.

• Ferromagnetic
• Paramagnetic
• Electromagnetic

Question 8

A substance that is naturally and permanently magnetic like iron.

Answer 8

Ferromagnetic

Question 9

Becomes magnetic under the influence of a magnetic field. It wont magnetize unless there is a strong magnetic force that will act.

Answer 9

Paramagnetic

Question 10

Becomes magnetic under the influence of electric current.

Answer 10

Electromagnetic

Question 11

What are the end of a magnet are called?

Answer 11

Poles (free poles)

Question 12

Like poles ____.

Answer 12

Repel

Question 13

Unlike poles ____.

Answer 13

Attract

Question 14

A magnet has greatest strength at where?

Answer 14

Poles. The ends of a magnet.

Question 15

A magnet has little or no strength at where?

Answer 15

In the middle.

Question 16

What does the forces of attraction and repulsion depend on?

Answer 16

The strength of the magnet and the distance between the poles.

Question 17

It is when natural magnets are brought near magnetic substances such as iron, nickel, cobalt, etc. induces magnetic properties.

Answer 17

Magnetic Induction

Question 18

It is a twisted wire on a paper or wooden cylinder.

Answer 18

Solenoid

Question 19

An instrument used to measure current.

Answer 19

Galvanometer

Question 20

In case 1, what is the movement of the magnet when the reading of the voltage of the galvanometer is zero?

Answer 20

Stationary (Not moving)

Question 21

In case 2, what did the pointer of the galvanometer deflected to and the movement of the north pole to the solenoid?

Answer 21

The galvanometer deflected to the right as the north pole moved towards .

Question 22

In galvanometer, it is a change of direction.

Answer 22

Deflect

Question 23

It is a process of increasing electron flow.

Answer 23

Induced current

Question 24

If the movement is towards the solenoid, it will deflect towards ___.

Answer 24

Right

Question 25

In galvanometer, if the reading is right the current that its carrying is ____.

Answer 25

Positive

Question 26

In galvanometer, if the reading is left the current that its carrying is ____.

Answer 26

Negative

Question 27

In galvanometer, if the reading is in the middle the current that its carrying is ____.

Answer 27

Zero

Question 28

In case 3, what did the pointer of the galvanometer deflected to as the motion of the magnet stops?

Answer 28

It showed zero readings.

Question 29

TRUE OR FALSE: If there is no movement, there is no current.

Answer 29

TRUE

Question 30

TRUE OR FALSE: If there is no current, there will be a reading.

Answer 30

FALSE (No current, no reading)

Question 31

In case 4, what is the movement of the magnet and the direction of current flow as the galvanometer deflects towards the left?

Answer 31

The magnet is moved away and the current flows opposite in the solenoid.

Question 32

In case 5, what happens to the deflection if the magnet is moved alternatively with greater velocity?

Answer 32

Increases

Question 33

The definition of polarity is ___.

Answer 33

The poles

Question 34

In case 6, when the polarity of the magnet is reversed and brought close to solenoid what is the direction of the current flow and the galvanometer?

Answer 34

The current flows in an opposite direction and the galvanometer deflects to the left.

Question 35

In case 6, when the polarity of the magnet is reversed and brought far to solenoid what is the direction of the the galvanometer?

Answer 35

The galvanometer deflects to the right.

Question 36

If the magnet is at rest, will it deflect?

Answer 36

No deflection

Question 37

If the magnet moves towards the coil, it will deflect in ____?

Answer 37

In one direction

Question 38

If a magnet is held stationary at same position (near the coil), it will _____?

Answer 38

No deflection

Question 39

If the magnet is moved away from the coil, it will deflect in ___?

Answer 39

In opposite direction

Question 40

If a magnet is held stationary at same position (away the coil), it will _____?

Answer 40

No deflection

Question 41

It is a law that states whenever there is a change in the magnetic flux linked with a coil, an electromotive force (e.m.f) is induced .

Answer 41

Faraday’s Law of Induction

Question 42

In Faraday’s Law of Induction, if the magnetic field is changing, what will happen to the voltage?

Answer 42

There will be an induced voltage

Question 43

In Faraday’s Law of Induction, if there is higher voltage, the current will also be ___.

Answer 43

Higher

Question 44

It is the flow of the electron.

Answer 44

Current

Question 45

A force causing the electrons to move.

Answer 45

Voltage

Question 46

It is a magnetic field lines that is passing through an object.

Answer 46

Magnetic flux

Question 47

What are the factors affecting the magnitude of the e.m.f?

Answer 47

Change and time