1. static principles Static uses static problems review tests resources

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3. + + + + + + _ _ _ previous next smart + + + + + + _ _ _ _ _ _ _ _ _ smart activity

4. + + + + + + _ _ _ _ _ _ + + + + + + _ _ _ _ _ _ + + + + + + _ _ _ + + + + + + _ _ _ _ _ _ _ _ _ previous next 1.Friction charges the objects 2.Electrons move from the cloth to the rod 3.The rod becomes negative by gaining -charge 4.the cloth becomes positive by losing -charge 5.only -charges move

5. next + + + + + + _ _ _ _ _ _ _ _ _ _ previous Wall + + + _ + + Negatively charged strip moves towards the wall Negative charges are repelled away from the surface This makes the surface positively charged The rod is attracted to the wall The rod is moved away from the wall The negative charges return to the surface The wall becomes neutral again We say that charge has been INDUCED _ _ _ _ _

6. previous next When insulating materials rub together they can become charged. Charging is caused by _______ has been rubbed off one material onto the other. Charge

7. previous next One object becomes _________ charged and the other becomes charged. There are types of charge. We call them positive and negative. Only charges can move. friction negatively

8. Explain how objects become positively charged? LIKE CHARGES (- and –, + and +) UNLIKE CHARGES (+ and -)

9. Answers are on the next slide

10. previous next When insulating materials rub together they can become charged. (charging is caused by ______). _______ has been rubbed off one material onto the other. One object becomes _________ charged and the other becomes ________ charged. There are ___ types of charge. We call them positive and negative. Only _______ charges can move. How do objects become positively charged? LIKE CHARGES REPEL (- and –, + and +) UNLIKE CHARGES ATTRACT(+ and -) negative friction Charge negatively positively two

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13. previous next ++++++++++ How to print a full stop Positively charged nozzle

14. previous next +++++++++ To print a line the top plate can be made more negative.

15. previous next +++++++++ How is this letter i printed? The ink cartridge is moved horizontally at the same time. This allows any letters to be printed.

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17. previous next I wish the sun would hurry up and ripen this orange! I’m more worried about the farmers insecticide spray! The tale of the clever INSECT! Help!

18. previous next I wish the sun would hurry up and ripen this orange! I’m more worried about the farmers insecticide spray! The tale of the clever FARMER! Help! ++ OH NO! The farmer is using static electricity to charge the spray! Help! Can you explain what is happening here?

19. previous next ++ Why do the positively charged droplets spread out as they leave the nozzle? What happens to the droplets which go past the leaves? Click for the answers Like charges repel! Instead of falling the charged drops are attracted back to the orange!

20. Explain why:- 1The paint spreads out after leaving the nozzle 2 Why is this useful? 3 Explain what happens to paint which goes past the object 4 Why is this useful? 1 all the droplets are negatively charged so they 2 It gives a wider spray so you get better coverage and an coat 3 It is attracted to the back of the object by the 4 It paints the back of the object and less paint is

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22. previous next smartprevious next Metal chimney

23. next smart next previous next + -+ - - - Clean gases Smoke particles reach the positive metal plate electrons are removed and travel towards the plate the positive ions drift to the earthed metal wall Clean gases leave the chimney Smoke is deposited on the chimney walls The dust is removed and used to make breeze blocks

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26. smart previous next smart previous The problem!

27. next smart previous next previous The solution! The ground stroke is more likely to strike a pointed object The lightning conductor gives an path to the for the current The building is kept safe

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29. The most dangerous moment for any aircraft is NOT when it is flying NOT when it is landingwhen it is refuelling previous next previous next

30. previous next The most dangerous moment for any aircraft is when it is refuelling Click to find out what happens!

31. previous next The most dangerous moment for any aircraft is when it is refuelling A metal bonding line connects the tanker to the aircraft BEFORE refuelling starts.

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33. 1 Objects become charged by 2 Static electricity builds up on substances which are 3 Before rubbing objects together they will usually be

34. 4 An object becomes positively charged by 5 A negatively charged object has 6 Like charges always

35. 7 Unlike charges always 8 Only charges can move

36. Answers are on the next slide

37. 1 Objects become charged by __________ 2 Static electricity builds up on substances which are 3 Before rubbing objects together they will usually be 4 An object becomes positively charged by _______ _____________ 5 A negatively charged object has ______________ _______________ 6 Like charges always _______ 7 Unlike charges always _______ 8 Only _______ charges can move friction (rubbing) conductors/insulators neutral/charged losing electrons(negative charge) gaining electrons(negatives) repel attract negative

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