Free Printable M3.10 Magnetism Cat B

Worksheets

M3.10 Magnetism Cat B

Total questions: 20

Worksheet time: 1hrs 27mins

Name

Class

Date

_{^{The magnet's shown will}}

not move

attract

repel

all of the above

_{^{The magnet's sho}}_{^{wn will}}

not move

attract

repel

all of the above

What do the lines around this magnet represent?

North Pole

South Pole

Magnetic Declination

Magnetic Field

Why does a compass needle point north?

The compass is a bar magnet

Because north is up

Because it's magic

It lines up with the Earth's magnetic field

The force of magnetism is stronger when magnets are ________________

cold

round

closer together

farther apart

Which rule do we use to predict the direction a current carrying wire will move in a magnetic field?

Fleming's Left Hand Rule

Fleming's Right Hand Rule

Faraday's Left Hand Rule

Faraday's Right Hand Rule

The current in the green wire flows from the left to the right. What direction does the wire move?

Down

Into the page

Out of the page

Which of the following may be done to increase the force felt during the motor effect?

Increase the current, length of wire in the field or the strength of the magnetic

Increase the voltage, length of wire in the field or the strength of the magnetic

Increase the current, increase the voltage or increase the strength of the magnetic field

Increase the resistance in the wire or increase the magnetic field strength

Which of the above diagrams shows the magnetic field lines around the north pole of a magnet?

10.

Which of these is not a magnetic material?

aluminium

steel

nickel

iron

11.

Some magnets are easily magnetised when placed in a magnetic field, and then quickly lose their magnetism once the field is removed. These materials are used in electromagnets, and are called...

soft magnetic materials

hard magnetic materials

temporary magnets

partial magnets

12.

The diagram shows a coil of wire with a current flowing through it in the direction shown by the arrows. The coil is between 2 magnets as shown.

Using Fleming's Left hand Rule, which way will the coil move?

upwards

downwards

rotate clockwise

rotate anticlockwise

13.

Which of these appliances does not use the effect of force on a current in a magnetic field?

loudspeaker

motor

lightbulb

electric fan

14.

The force on a wire can be made stronger in several ways. Which one of these will not work?

Increase the current

Use stronger magnets

Use a coil with many turns

Make the wire thicker

15.

A magnet is dropped through a coil connected to a millivoltmeter as shown. The voltmeter needle moves to the right showing a positive reading.

Which of these will make the voltmeter reading smaller but still positive?

Drop the south pole through first

Add more turns to the coil

Move the magnet slowly through the coil

Use a stronger magnet

16.

A magnet is dropped through a coil connected to a millivoltmeter as shown. The voltmeter needle moves to the right showing a positive reading.

Which of these will make the voltmeter move to the left?

Drop the south pole through first

Add more turns to the coil

Move the magnet slowly through the coil

Use a stronger magnet

17.

What can demagnetize a magnet?

A. high altitudes

B. high temperatures

C. low altitudes

D. low temperatures

18.

What happens if you cut a magnet in half?

Nothing

The magnets repel

There will be two magnets

19.

What is the unit of magnetic flux density?

(a)

20.

The force exerted by a magnetic field depends on 3 things. What is the 3rd?

1) Magnetic flux density 2) Current 3) ...

(a)

Reset

M3.10 Magnetism Cat B

Total questions: 20

Worksheet time: 1hrs 27mins

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