Static Electricity Experiment Worksheet

Science experiments lesson 21: Static electricity: comb and paper bits · Set 420 · 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 is the odd one out? (a) thermocol bits (b) a heavy book (c) puffed rice (d) a thin water stream
2. 2.🔍 Which is the odd one out? (a) a thin water stream (b) dry hair (c) puffed rice (d) a steel spoon
3. 3.⚡ Which of these does not move to a charged comb? (a) a heavy book (b) a thin water stream (c) puffed rice (d) thermocol bits
4. 4.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: number of rubs is what we measure. (a) True (b) False
5. 5.⚡ Which of these jumps to a charged comb? (a) a pebble (b) a brick (c) a steel spoon (d) dry hair
6. 6.⚡ Which of these jumps to a charged comb? (a) a brick (b) tiny paper bits (c) a heavy book (d) a pebble
7. 7.🧺 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) a plastic comb
8. 8.⚖️ 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) number of rubs (c) distance to the paper (d) paper bits picked up
9. 9.⚡ A rubbed comb is held near tiny paper bits. What happens? (a) does not move (b) jumps to the comb
10. 10.⚡ A rubbed comb is held near a thin water stream. What happens? (a) does not move (b) jumps to the comb
11. 11.⚖️ 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
12. 12.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a plastic comb (b) a mirror (c) dry hair (d) tiny paper bits
13. 13.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “paper bits picked up”? (a) we keep it the same (b) we change it (c) we measure it
14. 14.🧺 Do we need dry hair for the static comb? (a) needed (b) not needed
15. 15.True or false: a magnet is needed for the static comb. (a) True (b) False
16. 16.⚡ 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
17. 17.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) dry hair (b) tiny paper bits (c) turmeric powder (d) a balloon
18. 18.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? Which of these is what we measure? (a) number of rubs (b) the paper bit size (c) paper bits picked up (d) the same comb
19. 19.True or false: a balloon is needed for the static comb. (a) False (b) True
20. 20.🧺 Which of these is not needed for the static comb? (a) a plastic comb (b) dry hair (c) tiny paper bits (d) a mirror
21. 21.🧺 Do we need yeast for the static comb? (a) not needed (b) needed
22. 22.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “number of rubs”? (a) we measure it (b) we change it (c) we keep it the same
23. 23.True or false: a balloon is not needed for the static comb. (a) False (b) True
24. 24.True or false: vinegar is not needed for the static comb. (a) False (b) True
25. 25.True or false: turmeric powder is not needed for the static comb. (a) False (b) True
26. 26.🛟 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
27. 27.⚖️ 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
28. 28.⚖️ 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
29. 29.⚖️ 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) True (b) False
30. 30.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: paper bits picked up is kept the same. (a) True (b) False
31. 31.⚡ A rubbed comb is held near a brick. What happens? (a) jumps to the comb (b) does not move
32. 32.⚖️ 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
33. 33.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) tiny paper bits (b) vinegar (c) dry hair (d) a balloon
34. 34.🔮 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 bursts at once (d) it falls straight down
35. 35.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? Which of these is kept the same? (a) distance to the paper (b) number of rubs (c) paper bits picked up
36. 36.True or false: a mirror is not needed for the static comb. (a) True (b) False
37. 37.True or false: a pebble jumps to a charged comb. (a) False (b) True
38. 38.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: the same comb is the one thing we change. (a) True (b) False
39. 39.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: the same comb is kept the same. (a) False (b) True
40. 40.True or false: a thin water stream jumps to a charged comb. (a) True (b) False

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