1) What are the ends of a bar magnet called? a) Points b) Poles c) Pieces d) Ports 2) What are the poles of a magnet called? a) Up and Down b) Left and Right c) North and South d) East and West 3) Where does the magnetic field flow from and to? a) From the North pole to the South pole b) From the poles towards the middle c) From the middle towards the poles d) From the south to the North pole 4) Where is the magnetic field the strongest? a) The middle b) Both poles c) North pole d) South pole 5) As you move closer to the magnet how does the field strength change? a) Gets stronger b) Stays the same c) Gets weaker 6) Which would be the most likely not to stick to your fridge with a magnet? a) 1 sheet of paper b) 10 sheets of paper c) 15 sheets of paper 7) If you move a compass near to a magnet, where will its North pole point to? a) Magnet's North pole b) Middle of the magnet c) Magnet's South pole 8) What types of material can stop a magnetic field passing through them? a) Plastics b) Metals c) Magnetic materials d) Non-magnetic materials 9) If you put the North pole of a magnet near to a magnetic material it will... a) ...attract it. b) ...repel it. c) ...not affect it. 10) Which of the materials below is NOT magnetic? a) Iron b) Steel c) Nickel d) Copper 11) Why do electromagnets work? a) The current creates a magnetic field b) They are made of coils c) The iron is magnetic d) The power pack increase the strength 12) How can an electromagnet be made stronger? a) Decreasing the number of coils b) Increasing the number of coils c) Decreasing the current d) Removing the iron bar 13) Why does a motor spin? a) Because it is made using electricity b) The forces of the magnetic fields push each side of the coil in opposite directions c) The coil can be made longer d) The power can be increased 14) How do you make a motor turn faster? a) Add more coils b) Add more current c) Use a wire with less resistance d) All of the above 15) Which of the following things use magnetism to work? a) Electric door bell b) Motor c) Loudspeaker d) All of the above

AW Yr 8 Magnetism

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