revision

Today we're going to finish off revising for the test tomorrow in class. make sure you have your handouts from last week, and complete the following in your books:

1. What is conduction? Give an example:
2. What does heat transfer through during convection?
3. Explain how density relates to convection:
4. Where does radiation occur? Give an example and explain how it is different from the ther two heat transfer methods.
5. Why are metals good at conducting heat? Why ISN'T wood a good heat conductor?
6. What is a heat insulator?
7. What are the two ends of a magnet called?
8. What 4 metals are attracted to magnets?
9. Explain how you would make an electromagnet. How is this different from a normal magnet?
10. How can magnets be made to repel each other? How can they attract each other?
11. Extension - Do some reading and find out how maglev trains work. Why are they better than normal trains?
12. This video helps you look at examples similar to those we saw in class.
13. Finally, try this activity. Which charges attract and repel each other?

HOMEWORK - Read through these questions and your notes from last week, to mae sure you're ready for the test in period 2 tomorrow! Come and ask Mr. Cole beforehand if you have any questions.