1. Which of these is not a magnetic material?
- A). Aluminium
- B). Steel.
- C). Nickel.
- D). Iron.
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2. Which of these diagrams shows the magnetic field lines around the north pole of a magnet?
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3. When magnets and metal bars are close together they experience forces.
Which row gives the correct description of the effect between these materials?
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North Pole and North Pole |
North Pole and South Pole |
North Pole and Iron Bar |
A). |
attract |
repel |
attract |
B). |
repel |
attract |
repel |
C). |
repel |
attract |
attract |
D). |
attract |
attract |
attract |
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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.
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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.
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6. Which of these diagrams shows the magnetic field line pattern (red lines) around a single straight wire carrying a current?
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7. A student cariies 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 contstant. 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.
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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
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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.
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10. Fleming's Left hand Rule can be used to predict the direction of the force on a wire carrying a current, when placed in a magnetic field. |
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Which of these correctly identifies the fingers/thumb?
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Force on wire |
current in wire |
Magnetic Field direction |
A |
thumb |
first finger |
second finger |
B |
thumb |
second finger |
first finger |
C |
second finger |
first finger |
thumb |
D |
first finger |
thumb |
second finger |
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