Static Electricity Experiment Worksheet

Science experiments lesson 21: Static electricity: comb and paper bits · Set 192 · 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.⚡ Why does the comb trick work best on a dry day? (a) water adds charge (b) wet hair is magnetic (c) damp air leaks charge (d) dry days are noisy
2. 2.🛟 There is lightning outside. Where is it safest to be? (a) on a rooftop (b) indoors (c) in an open field (d) under a tall tree
3. 3.⚖️ 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) True (b) False
4. 4.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: paper bits picked up is the one thing we change. (a) False (b) True
5. 5.⚖️ 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 change it (c) we measure it
6. 6.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) yeast (b) a balloon (c) dry hair (d) a plastic comb
7. 7.⚡ Which of these jumps to a charged comb? (a) a pebble (b) a thin water stream (c) a steel spoon (d) a brick
8. 8.⚡ Which of these does not move to a charged comb? (a) thermocol bits (b) a pebble (c) puffed rice (d) dry hair
9. 9.True or false: a pebble does not move to a charged comb. (a) True (b) False
10. 10.⚖️ 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
11. 11.True or false: a battery cell is needed for the static comb. (a) True (b) False
12. 12.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “distance to the paper”? (a) we change it (b) we keep it the same (c) we measure it
13. 13.True or false: thermocol bits jumps to a charged comb. (a) False (b) True
14. 14.🔮 Predict: you rub a balloon on dry hair and hold it on a wall. What happens? (a) it sticks for a while (b) it turns into water (c) it falls straight down (d) it bursts at once
15. 15.🧺 Do we need a magnet for the static comb? (a) not needed (b) needed
16. 16.⚡ Why does the rubbed comb pull the paper bits? (a) it is sticky (b) it is a magnet (c) it is hot (d) it has static charge
17. 17.True or false: a magnet is needed for the static comb. (a) True (b) False
18. 18.🧺 Which of these is needed for the static comb? (a) a magnet (b) a mirror (c) tiny paper bits (d) a battery cell
19. 19.⚡ Which of these jumps to a charged comb? (a) a brick (b) tiny paper bits (c) a heavy book (d) a steel spoon
20. 20.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “the same hair”? (a) we change it (b) we keep it the same (c) we measure it
21. 21.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a balloon (b) a battery cell (c) dry hair (d) tiny paper bits
22. 22.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) dry hair (b) a mirror (c) a balloon (d) a plastic comb
23. 23.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) tiny paper bits (b) dry hair (c) a balloon (d) vinegar
24. 24.🧺 Which of these is not needed for the static comb? (a) a balloon (b) turmeric powder (c) tiny paper bits (d) dry hair
25. 25.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “paper bits picked up”? (a) we measure it (b) we change it (c) we keep it the same
26. 26.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: distance to the paper is kept the same. (a) False (b) True
27. 27.True or false: yeast is not needed for the static comb. (a) True (b) False
28. 28.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? Which of these is the one thing we change? (a) the same hair (b) the same comb (c) the paper bit size (d) number of rubs
29. 29.🔍 Which is the odd one out? (a) a steel spoon (b) a heavy book (c) a brick (d) tiny paper bits
30. 30.🧺 Which of these is needed for the static comb? (a) a plastic comb (b) a battery cell (c) turmeric powder (d) vinegar
31. 31.🧺 Which of these is needed for the static comb? (a) a mirror (b) vinegar (c) a battery cell (d) a balloon
32. 32.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a magnet (b) a plastic comb (c) dry hair (d) a balloon
33. 33.🔍 Which is the odd one out? (a) a heavy book (b) tiny paper bits (c) thermocol bits (d) a thin water stream
34. 34.⚡ Which of these does not move to a charged comb? (a) tiny paper bits (b) a thin water stream (c) a brick (d) puffed rice
35. 35.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) tiny paper bits (b) a plastic comb (c) dry hair (d) turmeric powder
36. 36.True or false: tiny paper bits is needed for the static comb. (a) True (b) False
37. 37.🧺 Which of these is not needed for the static comb? (a) a balloon (b) a magnet (c) tiny paper bits (d) a plastic comb
38. 38.⚡ A rubbed comb is held near tiny paper bits. What happens? (a) does not move (b) jumps to the comb
39. 39.True or false: a plastic comb is needed for the static comb. (a) False (b) True
40. 40.🛟 Static from a comb is safe. Which electricity must children never play with? (a) a rubbed balloon (b) paper bits on a comb (c) a rubbed plastic comb (d) plug points at home

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