Static Electricity Experiment Worksheet

Science experiments lesson 21: Static electricity: comb and paper bits · Set 191 · 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.🧺 Do we need turmeric powder for the static comb? (a) not needed (b) needed
2. 2.⚡ Which of these does not move to a charged comb? (a) dry hair (b) a brick (c) tiny paper bits (d) a thin water stream
3. 3.⚡ Why does the comb trick work best on a dry day? (a) dry days are noisy (b) wet hair is magnetic (c) water adds charge (d) damp air leaks charge
4. 4.🧺 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
5. 5.🧺 Do we need yeast for the static comb? (a) needed (b) not needed
6. 6.⚡ A rubbed comb is held near a heavy book. What happens? (a) does not move (b) jumps to the comb
7. 7.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “the same comb”? (a) we change it (b) we measure it (c) we keep it the same
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) the same hair (c) number of rubs (d) the same comb
9. 9.🧺 Which of these is not needed for the static comb? (a) dry hair (b) a balloon (c) a magnet (d) tiny paper bits
10. 10.⚡ Which of these jumps to a charged comb? (a) a brick (b) a heavy book (c) a pebble (d) thermocol bits
11. 11.True or false: a heavy book jumps to a charged comb. (a) True (b) False
12. 12.🔍 Which is the odd one out? (a) tiny paper bits (b) thermocol bits (c) a thin water stream (d) a steel spoon
13. 13.⚡ A rubbed comb is held near tiny paper bits. What happens? (a) jumps to the comb (b) does not move
14. 14.True or false: puffed rice does not move to a charged comb. (a) True (b) False
15. 15.🧺 Which of these is needed for the static comb? (a) a mirror (b) dry hair (c) turmeric powder (d) a battery cell
16. 16.⚡ A rubbed comb is held near thermocol bits. What happens? (a) jumps to the comb (b) does not move
17. 17.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? Which of these is kept the same? (a) paper bits picked up (b) distance to the paper (c) number of rubs
18. 18.🛟 There is lightning outside. Where is it safest to be? (a) on a rooftop (b) under a tall tree (c) indoors (d) in an open field
19. 19.🧺 Which of these is needed for the static comb? (a) a mirror (b) a plastic comb (c) a magnet (d) vinegar
20. 20.🧺 Which of these is not needed for the static comb? (a) a balloon (b) vinegar (c) tiny paper bits (d) a plastic comb
21. 21.⚡ A rubbed comb is held near a steel spoon. What happens? (a) jumps to the comb (b) does not move
22. 22.⚖️ 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) the paper bit size
23. 23.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a balloon (b) dry hair (c) a magnet (d) tiny paper bits
24. 24.⚡ A rubbed comb is held near puffed rice. What happens? (a) jumps to the comb (b) does not move
25. 25.🔍 Which is the odd one out? (a) a steel spoon (b) puffed rice (c) a heavy book (d) a brick
26. 26.⚖️ 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
27. 27.🧺 Do we need dry hair for the static comb? (a) not needed (b) needed
28. 28.⚡ Which of these does not move to a charged comb? (a) thermocol bits (b) a thin water stream (c) a pebble (d) tiny paper bits
29. 29.⚖️ 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
30. 30.True or false: a brick jumps to a charged comb. (a) True (b) False
31. 31.⚖️ 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 change it (c) we measure it
32. 32.⚖️ 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) False (b) True
33. 33.⚖️ 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
34. 34.🧺 Which of these is not needed for the static comb? (a) a battery cell (b) dry hair (c) a plastic comb (d) a balloon
35. 35.🔮 Predict: you rub a balloon on dry hair and hold it on a wall. What happens? (a) it turns into water (b) it bursts at once (c) it falls straight down (d) it sticks for a while
36. 36.🔮 Predict: you wet the comb before trying again. What happens? (a) it hardly works (b) it works better (c) it lights up (d) it becomes a magnet
37. 37.True or false: tiny paper bits is not needed for the static comb. (a) True (b) False
38. 38.True or false: dry hair is not needed for the static comb. (a) True (b) False
39. 39.🛟 Static from a comb is safe. Which electricity must children never play with? (a) paper bits on a comb (b) plug points at home (c) a rubbed balloon (d) a rubbed plastic comb
40. 40.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: the same hair is what we measure. (a) False (b) True

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