Static Electricity Experiment Worksheet

Science experiments lesson 21: Static electricity: comb and paper bits · Set 351 · 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 of these is needed for the static comb? (a) a battery cell (b) a magnet (c) dry hair (d) vinegar
2. 2.🔮 Predict: a charged comb is held near a thin stream of tap water. What happens? (a) nothing at all (b) the water freezes (c) the water stops (d) the stream bends
3. 3.🔍 Which is the odd one out? (a) a pebble (b) a heavy book (c) a steel spoon (d) thermocol bits
4. 4.True or false: yeast is not needed for the static comb. (a) True (b) False
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 measure it (c) we change it
6. 6.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? Which of these is the one thing we change? (a) number of rubs (b) the same comb (c) distance to the paper (d) paper bits picked up
7. 7.🧺 Which of these is needed for the static comb? (a) vinegar (b) a balloon (c) a mirror (d) a magnet
8. 8.True or false: a magnet is needed for the static comb. (a) True (b) False
9. 9.🧺 Do we need a plastic comb for the static comb? (a) not needed (b) needed
10. 10.⚡ Which of these jumps to a charged comb? (a) tiny paper bits (b) a pebble (c) a steel spoon (d) a heavy book
11. 11.True or false: a brick jumps to a charged comb. (a) False (b) True
12. 12.🛟 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
13. 13.⚖️ 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) False (b) True
14. 14.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “distance to the paper”? (a) we measure it (b) we keep it the same (c) we change it
15. 15.True or false: thermocol bits jumps to a charged comb. (a) True (b) False
16. 16.True or false: a thin water stream does not move to a charged comb. (a) True (b) False
17. 17.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? Which of these is what we measure? (a) paper bits picked up (b) number of rubs (c) the same hair (d) the paper bit size
18. 18.⚡ Why does the rubbed comb pull the paper bits? (a) it is a magnet (b) it has static charge (c) it is hot (d) it is sticky
19. 19.🔮 Predict: you rub a balloon on dry hair and hold it on a wall. What happens? (a) it bursts at once (b) it sticks for a while (c) it turns into water (d) it falls straight down
20. 20.🧺 Do we need a magnet for the static comb? (a) needed (b) not needed
21. 21.True or false: a plastic comb is needed for the static comb. (a) False (b) True
22. 22.⚖️ 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 keep it the same (c) we change it
23. 23.🧺 Which of these is needed for the static comb? (a) yeast (b) a plastic comb (c) a mirror (d) turmeric powder
24. 24.⚡ Why does the comb trick work best on a dry day? (a) damp air leaks charge (b) wet hair is magnetic (c) dry days are noisy (d) water adds charge
25. 25.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: number of rubs is what we measure. (a) False (b) True
26. 26.🧺 Do we need turmeric powder for the static comb? (a) not needed (b) needed
27. 27.True or false: a plastic comb is not needed for the static comb. (a) True (b) False
28. 28.🔍 Which is the odd one out? (a) puffed rice (b) a brick (c) a thin water stream (d) tiny paper bits
29. 29.🧺 Which of these is not needed for the static comb? (a) a plastic comb (b) tiny paper bits (c) dry hair (d) turmeric powder
30. 30.🧺 Do we need yeast for the static comb? (a) needed (b) not needed
31. 31.True or false: a steel spoon does not move to a charged comb. (a) True (b) False
32. 32.⚡ Which of these jumps to a charged comb? (a) thermocol bits (b) a heavy book (c) a brick (d) a steel spoon
33. 33.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a plastic comb (b) dry hair (c) yeast (d) tiny paper bits
34. 34.⚡ Which of these does not move to a charged comb? (a) a pebble (b) dry hair (c) puffed rice (d) tiny paper bits
35. 35.True or false: turmeric powder is needed for the static comb. (a) False (b) True
36. 36.⚡ A rubbed comb is held near a heavy book. What happens? (a) does not move (b) jumps to the comb
37. 37.🛟 Static from a comb is safe. Which electricity must children never play with? (a) paper bits on a comb (b) a rubbed balloon (c) a rubbed plastic comb (d) plug points at home
38. 38.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “the paper bit size”? (a) we keep it the same (b) we change it (c) we measure it
39. 39.True or false: a battery cell is not needed for the static comb. (a) True (b) False
40. 40.⚡ A rubbed comb is held near thermocol bits. What happens? (a) does not move (b) jumps to the comb

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