1. Which of these is not a magnetic material?

• A). Aluminium
• B). Steel.
• C). Nickel.
• D). Iron.

2. Which of these diagrams shows the magnetic field lines around the north pole of a magnet?

3. When magnets and metal bars are close together they experience forces.

Which row gives the correct description of the effect between these materials?

4. A magnetic compass points North. This shows that...

• A). the Earth is tilted on its axis.
• B). the Earth is spinning.
• C). the Earth has a magnetic field.
• D). the Earth has gravity.

5. A magnetic field line shows the direction of force acting on

• A). a magnetic north pole.
• B). a magnetic south pole.
• C). a bar magnet.
• D). a current carrying wire.

6. Which of these diagrams shows the magnetic field line pattern (red lines) around a single straight wire carrying a current?

7. A student carries out some experiments to see which variables affect the strength of the field near to the wire above. They change one variable at a time, keeping the others constant. Only 2 of the experiments gave a result.

Which 2 variables were found to affect the field strength?

• A). Distance from the wire, thickness of the wire.
• B). Thickness of the wire, type of metal used.
• C). Type of metal used, current in the wire.
• D). Current in the wire, distance from the wire.

8. What is the name of a long (empty) coil of wire used to produce a magnetic field?

• A). A transformer
• B). A potentiometer
• C). A solenoid
• D). An alternator

9. If an iron bar is placed in the middle of this coil, a strong electromagnet is produced. The magnetic field can then be turned on and off.

This type of magnet is ...

• A). a permanent magnet.
• B). an induced magnet.
• C). a Fleming magnet.
• D). a motor effect magnet.

Which of these correctly identifies the fingers/thumb?