Watch the video and answer the questions below it.
1. What is the difference between a permanent magnet and a temporary magnet?
2. Tom wants to make a cartoon sticker to put on the door of his refrigerator. He wants a sticker that is made from a magnet. Which of the three types of magnets (temporary, permanent or electromagnet) would you advise him to use to make his magnetic sticker? Explain your answer.
3. From the video, why were the ends of the paper clips marked with a red coloured marker?
4. Explain why it was necessary to stroke the paper clip with the magnet approximately 50 times.
Construct a temporary magnet using the instructions given in the video and then answer question 5 and 6.
5. Use a timer (stopwatch on the phone can be used) to time how long your temporary magnet stayed magnetised for.
6. How many paper clips (or pins) were you able to pick up using your temporary magnet?
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