Static Electricity Experiment Worksheet

Science experiments lesson 21: Static electricity: comb and paper bits · Set 871 · 40 questions

What you do (Rub and charge): 1. Tear a sheet of paper into tiny bits on a table. 2. Comb dry, clean hair quickly 10 times. 3. Hold the comb just above the paper bits and watch. 4. Try again with 20 combs, and count the bits each time.

1. 1.🧺 Which of these is needed for the static comb? (a) turmeric powder (b) a battery cell (c) yeast (d) tiny paper bits
2. 2.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “paper bits picked up”? (a) we change it (b) we measure it (c) we keep it the same
3. 3.⚡ A rubbed comb is held near a heavy book. What happens? (a) does not move (b) jumps to the comb
4. 4.True or false: tiny paper bits jumps to a charged comb. (a) False (b) True
5. 5.⚡ A rubbed comb is held near tiny paper bits. What happens? (a) does not move (b) jumps to the comb
6. 6.🔮 Predict: a charged comb is held near a thin stream of tap water. What happens? (a) the water stops (b) nothing at all (c) the water freezes (d) the stream bends
7. 7.🧺 Which of these is needed for the static comb? (a) a battery cell (b) a plastic comb (c) yeast (d) a mirror
8. 8.🛟 There is lightning outside. Where is it safest to be? (a) under a tall tree (b) in an open field (c) on a rooftop (d) indoors
9. 9.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? Which of these is what we measure? (a) distance to the paper (b) paper bits picked up (c) the same comb (d) number of rubs
10. 10.⚡ Which of these does not move to a charged comb? (a) puffed rice (b) a pebble (c) tiny paper bits (d) a thin water stream
11. 11.🧺 Do we need turmeric powder for the static comb? (a) not needed (b) needed
12. 12.⚡ A rubbed comb is held near dry hair. What happens? (a) jumps to the comb (b) does not move
13. 13.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a plastic comb (b) a balloon (c) turmeric powder (d) dry hair
14. 14.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “the paper bit size”? (a) we change it (b) we measure it (c) we keep it the same
15. 15.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “number of rubs”? (a) we keep it the same (b) we measure it (c) we change it
16. 16.⚡ A rubbed comb is held near thermocol bits. What happens? (a) does not move (b) jumps to the comb
17. 17.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “the same comb”? (a) we keep it the same (b) we change it (c) we measure it
18. 18.🛟 Static from a comb is safe. Which electricity must children never play with? (a) plug points at home (b) a rubbed balloon (c) a rubbed plastic comb (d) paper bits on a comb
19. 19.🧺 Do we need a balloon for the static comb? (a) not needed (b) needed
20. 20.⚡ Why does the comb trick work best on a dry day? (a) dry days are noisy (b) wet hair is magnetic (c) damp air leaks charge (d) water adds charge
21. 21.⚡ Which of these does not move to a charged comb? (a) thermocol bits (b) a heavy book (c) a thin water stream (d) tiny paper bits
22. 22.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? Which of these is the one thing we change? (a) the paper bit size (b) distance to the paper (c) number of rubs (d) the same hair
23. 23.True or false: puffed rice jumps to a charged comb. (a) False (b) True
24. 24.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) tiny paper bits (b) a mirror (c) a plastic comb (d) dry hair
25. 25.True or false: dry hair jumps to a charged comb. (a) True (b) False
26. 26.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: paper bits picked up is what we measure. (a) True (b) False
27. 27.True or false: yeast is not needed for the static comb. (a) False (b) True
28. 28.🧺 Do we need tiny paper bits for the static comb? (a) needed (b) not needed
29. 29.True or false: a plastic comb is needed for the static comb. (a) False (b) True
30. 30.True or false: thermocol bits does not move to a charged comb. (a) True (b) False
31. 31.🔍 Which is the odd one out? (a) a heavy book (b) a pebble (c) puffed rice (d) a steel spoon
32. 32.🔮 Predict: you wet the comb before trying again. What happens? (a) it becomes a magnet (b) it lights up (c) it works better (d) it hardly works
33. 33.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) dry hair (b) vinegar (c) tiny paper bits (d) a plastic comb
34. 34.🧺 Which of these is needed for the static comb? (a) a mirror (b) dry hair (c) yeast (d) a battery cell
35. 35.True or false: vinegar is not needed for the static comb. (a) False (b) True
36. 36.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: the paper bit size is what we measure. (a) True (b) False
37. 37.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: number of rubs is the one thing we change. (a) False (b) True
38. 38.⚡ A rubbed comb is held near puffed rice. What happens? (a) jumps to the comb (b) does not move
39. 39.True or false: a balloon is not needed for the static comb. (a) False (b) True
40. 40.🧺 Do we need a battery cell for the static comb? (a) not needed (b) needed

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