Static Electricity Experiment Worksheet

Science experiments lesson 21: Static electricity: comb and paper bits · Set 650 · 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.True or false: a plastic comb is needed for the static comb. (a) False (b) True
2. 2.🧺 Which of these is needed for the static comb? (a) a mirror (b) turmeric powder (c) dry hair (d) vinegar
3. 3.⚡ Why does the comb trick work best on a dry day? (a) wet hair is magnetic (b) water adds charge (c) dry days are noisy (d) damp air leaks charge
4. 4.🛟 Static from a comb is safe. Which electricity must children never play with? (a) a rubbed balloon (b) plug points at home (c) paper bits on a comb (d) a rubbed plastic comb
5. 5.🧺 Do we need a plastic comb for the static comb? (a) not needed (b) needed
6. 6.🔮 Predict: a charged comb is held near a thin stream of tap water. What happens? (a) the water stops (b) nothing at all (c) the water freezes (d) the stream bends
7. 7.🛟 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
8. 8.⚡ A rubbed comb is held near puffed rice. What happens? (a) does not move (b) jumps to the comb
9. 9.🧺 Do we need tiny paper bits for the static comb? (a) not needed (b) needed
10. 10.True or false: a steel spoon jumps to a charged comb. (a) True (b) False
11. 11.⚡ Why does the rubbed comb pull the paper bits? (a) it is a magnet (b) it is sticky (c) it has static charge (d) it is hot
12. 12.🧺 Do we need a mirror for the static comb? (a) needed (b) not needed
13. 13.⚖️ 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
14. 14.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a balloon (b) tiny paper bits (c) yeast (d) dry hair
15. 15.⚖️ 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
16. 16.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “paper bits picked up”? (a) we change it (b) we keep it the same (c) we measure it
17. 17.True or false: vinegar is needed for the static comb. (a) True (b) False
18. 18.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: the same comb is kept the same. (a) True (b) False
19. 19.⚡ Which of these jumps to a charged comb? (a) a pebble (b) a steel spoon (c) a brick (d) a thin water stream
20. 20.🧺 Which of these is not needed for the static comb? (a) a mirror (b) dry hair (c) a plastic comb (d) a balloon
21. 21.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: distance to the paper is the one thing we change. (a) True (b) False
22. 22.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) tiny paper bits (b) vinegar (c) a plastic comb (d) dry hair
23. 23.True or false: turmeric powder is needed for the static comb. (a) False (b) True
24. 24.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) dry hair (b) a mirror (c) a plastic comb (d) tiny paper bits
25. 25.True or false: a brick jumps to a charged comb. (a) False (b) True
26. 26.⚡ Which of these does not move to a charged comb? (a) thermocol bits (b) dry hair (c) a brick (d) a thin water stream
27. 27.⚡ A rubbed comb is held near a thin water stream. What happens? (a) jumps to the comb (b) does not move
28. 28.🧺 Which of these is needed for the static comb? (a) a battery cell (b) a balloon (c) vinegar (d) a magnet
29. 29.⚖️ 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
30. 30.True or false: a plastic comb is not needed for the static comb. (a) True (b) False
31. 31.⚖️ 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 comb (b) the paper bit size (c) number of rubs (d) distance to the paper
32. 32.⚡ A rubbed comb is held near a pebble. What happens? (a) jumps to the comb (b) does not move
33. 33.⚖️ 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 measure it (c) we change it
34. 34.🔮 Predict: you wet the comb before trying again. What happens? (a) it hardly works (b) it becomes a magnet (c) it works better (d) it lights up
35. 35.🔍 Which is the odd one out? (a) dry hair (b) a brick (c) a thin water stream (d) puffed rice
36. 36.🔍 Which is the odd one out? (a) puffed rice (b) a brick (c) a steel spoon (d) a heavy book
37. 37.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “the same hair”? (a) we measure it (b) we change it (c) we keep it the same
38. 38.🧺 Do we need dry hair for the static comb? (a) not needed (b) needed
39. 39.🧺 Which of these is not needed for the static comb? (a) dry hair (b) a balloon (c) vinegar (d) tiny paper bits
40. 40.⚖️ 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) number of rubs (c) the same hair (d) paper bits picked up

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