Static Electricity Experiment Worksheet

Science experiments lesson 21: Static electricity: comb and paper bits · Set 603 · 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.True or false: a pebble jumps to a charged comb. (a) False (b) True
2. 2.⚖️ 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
3. 3.True or false: a thin water stream jumps to a charged comb. (a) False (b) True
4. 4.🛟 There is lightning outside. Where is it safest to be? (a) in an open field (b) under a tall tree (c) indoors (d) on a rooftop
5. 5.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “the paper bit size”? (a) we measure it (b) we change it (c) we keep it the same
6. 6.🧺 Which of these is needed for the static comb? (a) vinegar (b) a mirror (c) a magnet (d) a balloon
7. 7.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? Which of these is the one thing we change? (a) distance to the paper (b) paper bits picked up (c) the paper bit size (d) number of rubs
8. 8.🧺 Do we need tiny paper bits for the static comb? (a) not needed (b) needed
9. 9.⚡ Which of these jumps to a charged comb? (a) tiny paper bits (b) a brick (c) a steel spoon (d) a heavy book
10. 10.🧺 Do we need turmeric powder for the static comb? (a) not needed (b) needed
11. 11.🧺 Do we need vinegar for the static comb? (a) not needed (b) needed
12. 12.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “the same hair”? (a) we keep it the same (b) we measure it (c) we change it
13. 13.🧺 Do we need a balloon for the static comb? (a) not needed (b) needed
14. 14.🛟 Static from a comb is safe. Which electricity must children never play with? (a) plug points at home (b) a rubbed balloon (c) paper bits on a comb (d) a rubbed plastic comb
15. 15.True or false: a heavy book jumps to a charged comb. (a) False (b) True
16. 16.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: number of rubs is kept the same. (a) True (b) False
17. 17.⚡ Which of these jumps to a charged comb? (a) a steel spoon (b) a heavy book (c) a brick (d) a thin water stream
18. 18.🔍 Which is the odd one out? (a) a heavy book (b) a pebble (c) a steel spoon (d) tiny paper bits
19. 19.⚡ Why does the comb trick work best on a dry day? (a) water adds charge (b) damp air leaks charge (c) wet hair is magnetic (d) dry days are noisy
20. 20.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: distance to the paper is what we measure. (a) True (b) False
21. 21.True or false: dry hair is needed for the static comb. (a) False (b) True
22. 22.🔍 Which is the odd one out? (a) dry hair (b) a brick (c) a steel spoon (d) a heavy book
23. 23.⚡ A rubbed comb is held near a steel spoon. What happens? (a) jumps to the comb (b) does not move
24. 24.⚡ Which of these jumps to a charged comb? (a) a steel spoon (b) a heavy book (c) dry hair (d) a pebble
25. 25.🔮 Predict: you wet the comb before trying again. What happens? (a) it lights up (b) it becomes a magnet (c) it works better (d) it hardly works
26. 26.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) turmeric powder (b) tiny paper bits (c) a plastic comb (d) dry hair
27. 27.⚡ Which of these jumps to a charged comb? (a) a steel spoon (b) a heavy book (c) thermocol bits (d) a brick
28. 28.True or false: dry hair is not needed for the static comb. (a) True (b) False
29. 29.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: the paper bit size is kept the same. (a) False (b) True
30. 30.True or false: a brick jumps to a charged comb. (a) False (b) True
31. 31.🧺 Which of these is not needed for the static comb? (a) a balloon (b) yeast (c) a plastic comb (d) tiny paper bits
32. 32.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “distance to the paper”? (a) we keep it the same (b) we measure it (c) we change it
33. 33.True or false: yeast is not needed for the static comb. (a) True (b) False
34. 34.True or false: dry hair jumps to a charged comb. (a) False (b) True
35. 35.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a balloon (b) dry hair (c) a plastic comb (d) yeast
36. 36.True or false: a battery cell is needed for the static comb. (a) False (b) True
37. 37.⚡ Which of these does not move to a charged comb? (a) a pebble (b) thermocol bits (c) dry hair (d) a thin water stream
38. 38.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a plastic comb (b) a mirror (c) a balloon (d) tiny paper bits
39. 39.🧺 Which of these is needed for the static comb? (a) vinegar (b) a battery cell (c) a magnet (d) tiny paper bits
40. 40.⚡ Which big natural spark is caused by static electricity? (a) a rainbow (b) dew (c) the wind (d) lightning

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