Static Electricity Experiment Worksheet

Science experiments lesson 21: Static electricity: comb and paper bits · Set 473 · 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.⚖️ 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 measure it (c) we keep it the same
2. 2.🛟 Static from a comb is safe. Which electricity must children never play with? (a) a rubbed plastic comb (b) paper bits on a comb (c) a rubbed balloon (d) plug points at home
3. 3.⚡ A rubbed comb is held near dry hair. What happens? (a) jumps to the comb (b) does not move
4. 4.⚡ A rubbed comb is held near a thin water stream. What happens? (a) jumps to the comb (b) does not move
5. 5.⚡ Which of these does not move to a charged comb? (a) a thin water stream (b) dry hair (c) a brick (d) puffed rice
6. 6.🧺 Do we need dry hair for the static comb? (a) not needed (b) needed
7. 7.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a balloon (b) a mirror (c) tiny paper bits (d) a plastic comb
8. 8.⚖️ 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
9. 9.⚡ You comb dry hair and hold the comb near tiny paper bits. What happens? (a) they turn blue (b) they turn wet (c) nothing happens (d) the bits jump to it
10. 10.True or false: dry hair is needed for the static comb. (a) False (b) True
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 measure it (c) we keep it the same
12. 12.⚡ Which of these jumps to a charged comb? (a) a steel spoon (b) thermocol bits (c) a pebble (d) a heavy book
13. 13.⚖️ 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) distance to the paper
14. 14.🧺 Do we need a battery cell for the static comb? (a) not needed (b) needed
15. 15.True or false: a magnet is not needed for the static comb. (a) False (b) True
16. 16.🔮 Predict: you rub a balloon on dry hair and hold it on a wall. What happens? (a) it falls straight down (b) it turns into water (c) it sticks for a while (d) it bursts at once
17. 17.True or false: a heavy book jumps to a charged comb. (a) True (b) False
18. 18.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a balloon (b) tiny paper bits (c) a plastic comb (d) yeast
19. 19.🔮 Predict: you wet the comb before trying again. What happens? (a) it works better (b) it lights up (c) it hardly works (d) it becomes a magnet
20. 20.True or false: a heavy book does not move to a charged comb. (a) True (b) False
21. 21.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a plastic comb (b) vinegar (c) a balloon (d) dry hair
22. 22.🧺 Do we need tiny paper bits for the static comb? (a) needed (b) not needed
23. 23.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “the same comb”? (a) we measure it (b) we keep it the same (c) we change it
24. 24.True or false: thermocol bits jumps to a charged comb. (a) True (b) False
25. 25.🧺 Which of these is not needed for the static comb? (a) dry hair (b) a battery cell (c) a balloon (d) a plastic comb
26. 26.⚖️ 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 measure it (c) we change it
27. 27.🧺 Do we need turmeric powder for the static comb? (a) not needed (b) needed
28. 28.🔮 Predict: a charged comb is held near a thin stream of tap water. What happens? (a) the water freezes (b) nothing at all (c) the water stops (d) the stream bends
29. 29.⚡ A rubbed comb is held near thermocol bits. What happens? (a) jumps to the comb (b) does not move
30. 30.⚡ Which of these does not move to a charged comb? (a) dry hair (b) a heavy book (c) tiny paper bits (d) thermocol bits
31. 31.🧺 Do we need a mirror for the static comb? (a) needed (b) not needed
32. 32.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: number of rubs is kept the same. (a) False (b) True
33. 33.🧺 Which of these is not needed for the static comb? (a) turmeric powder (b) a balloon (c) dry hair (d) tiny paper bits
34. 34.🔍 Which is the odd one out? (a) a thin water stream (b) puffed rice (c) dry hair (d) a pebble
35. 35.🛟 There is lightning outside. Where is it safest to be? (a) under a tall tree (b) indoors (c) in an open field (d) on a rooftop
36. 36.True or false: a steel spoon jumps to a charged comb. (a) True (b) False
37. 37.⚡ Why does the comb trick work best on a dry day? (a) water adds charge (b) dry days are noisy (c) damp air leaks charge (d) wet hair is magnetic
38. 38.True or false: dry hair is not needed for the static comb. (a) False (b) True
39. 39.True or false: yeast is needed for the static comb. (a) False (b) True
40. 40.True or false: a mirror is not needed for the static comb. (a) False (b) True

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