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WorksheetsAQA GCSE PHYSICS - MAGNETISM & ELECTROMAGNETISM
Total questions: 24
Worksheet time: 12mins
When drawing magnetic field lines, they should have…
arrows pointing south to north
arrows pointing in both directions
no arrows
arrows pointing north to south
An unmagnetised iron nail is passed through a coil of wire attached to a sensitive ammeter.
What happens?
The nail is attracted
The nail is repelled
A current is induced
No current is induced
A magnetic field is acting away from you and a conductor moves upwards through this field.
If you use Fleming's right hand rule, what can you conclude?
No current will be induced
A current will be induced upwards
A current will be induced to the left
A current will be induced away from you
A current passes through this solenoid from the left to right end. How should the magnetic field arrows be drawn?
The magnetic field arrows should be drawn inward at both ends
The magnetic field arrows should be drawn outward at both ends
The magnetic field arrows should be drawn into the left end and out of the right end
The magnetic field arrows should be drawn into the right end and out of the left end
The region around a magnet where the effect of the magnet can be felt is called the…
magnetic pole
magnetic field
magnetic force
magnetic line
An iron nail that isn't initially magnetic is brought close to a magnet and becomes magnetised.
What is the nail now called?
A constant magnet
A permanent magnet
A temporary magnet
An induced magnet
Which piece of equipment would you NOT need to use in order to show how a current is induced?
A magnet
A battery
A wire
An ammeter
Which of the following describes what a relay switch can be used for?
To attract a hammer to hit a bell
To attract the switch terminals of a circuit to turn on something needing a larger current
To attract an iron bolt to pull it back
To attract an iron bar to activate an electronic counter
When you move towards a magnet, the magnetic field becomes…
stronger
more spread out
weaker
parallel
A magnet is moved past a straight wire and a current is induced.
Which of the following would increase the induced current?
Turning the magnet round
Moving the magnet past in the opposite direction
Making the wire into a coil
Moving the magnet more slowly
Which of the following would NOT make an electromagnet stronger?
Having the wire coils turn in both directions
Wrapping more turns of wire round the core
Using a soft iron core instead of air
Increasing the current through the wire
A magnet is passed through a coil of wire at a steady speed.
It is then passed back through the same coil of wire at the same speed but in the opposite direction.
Which of the following is true?
The current is now stronger, but in the same direction
The current is the same strength and in the same direction
The current is the same strength but in the opposite direction
The current is now stronger and in the opposite direction
The magnetic field around a solenoid is the same shape as the magnetic field…
between two north poles
between two south poles
between two opposite poles
surrounding a bar magnet
A coil of wire is connected to a sensitive voltmeter.
A magnet is pushed into the coil then left there.
What does the voltmeter needle do?
The needle does not respond
The needle flicks to the right then stays in that position
The needle flicks right then left
The needle flicks right then returns to zero when the magnet stops moving
Look at this solenoid. How would a permanent magnet stood underneath the solenoid be affected?
A permanent magnet stood under this solenoid with the south pole upwards would be attracted
A permanent magnet stood under this solenoid with the south pole upwards would be repelled
A permanent magnet stood under this solenoid with the north pole upwards would be repelled
A permanent magnet stood under this solenoid with the north pole upwards would be unaffected
How could you investigate the strength of an electromagnet?
See how many plastic beads it can hold
See how many steel paper clips it can hold
See how many copper nails it can hold
See how many brass tacks it can hold
What does this image show?
This image shows two opposite poles repelling
This image shows two opposite poles attracting
This image shows two like poles repelling
This image shows two like poles attracting
How are the two poles on a bar magnet named?
North and north
South and south
North and south
East and west
When a current passes through a straight length of wire, the magnetic field created is…
alongside the wire in the direction of the current
alongside the wire but in the opposite direction to the current
circular, along the length of the wire
radiating outwards from the wire in all directions
A magnet is dropped through a coil of wire.
Which of these suggestions will NOT affect the strength of current that is induced?
Drop the magnet through with the other pole pointing downwards
Drop a stronger magnet through the coil
Use a coil with more turns of wire
Lower the magnet through on a string instead of dropping it
Which of these devices does NOT use a solenoid?
A door bell
A relay switch
An electric door lock
An electric fan
An iron bar is made to be magnetic all the time.
What is the iron bar called?
A constant magnet
A permanent magnet
A temporary magnet
An induced magnet
Which of the following is NOT an advantage of an electromagnet?
Can be turned on and off easily
Can be made stronger or weaker easily
Poles can be reversed easily
Doesn't need a power supply
Electromagnetic induction causes a current to flow when…
currents cut through a field
a field experiences a force
a conductor cuts through magnetic field lines
a conductor aligns with magnetic field lines
