Static Electricity Experiment Worksheet

Science experiments lesson 21: Static electricity: comb and paper bits · Set 654 · 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 dry hair for the static comb? (a) not needed (b) needed
2. 2.True or false: a heavy book jumps to a charged comb. (a) True (b) False
3. 3.⚡ A rubbed comb is held near thermocol bits. What happens? (a) jumps to the comb (b) does not move
4. 4.⚖️ 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 change it (c) we keep it the same
5. 5.🧺 Do we need yeast for the static comb? (a) not needed (b) needed
6. 6.⚡ Which of these does not move to a charged comb? (a) a thin water stream (b) tiny paper bits (c) a heavy book (d) thermocol bits
7. 7.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) tiny paper bits (b) a plastic comb (c) a balloon (d) a battery cell
8. 8.True or false: turmeric powder is not needed for the static comb. (a) False (b) True
9. 9.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a balloon (b) tiny paper bits (c) dry hair (d) turmeric powder
10. 10.⚡ 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
11. 11.🧺 Do we need vinegar for the static comb? (a) not needed (b) needed
12. 12.⚡ Which of these jumps to a charged comb? (a) a brick (b) puffed rice (c) a pebble (d) a heavy book
13. 13.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a plastic comb (b) dry hair (c) a mirror (d) a balloon
14. 14.🧺 Which of these is needed for the static comb? (a) yeast (b) dry hair (c) vinegar (d) a mirror
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 measure it (b) we keep it the same (c) we change it
16. 16.True or false: dry hair is not needed for the static comb. (a) False (b) True
17. 17.🧺 Which of these is not needed for the static comb? (a) dry hair (b) a magnet (c) a plastic comb (d) a balloon
18. 18.True or false: yeast is not needed for the static comb. (a) True (b) False
19. 19.🧺 Which of these is not needed for the static comb? (a) a plastic comb (b) a balloon (c) dry hair (d) a mirror
20. 20.⚡ Why does the rubbed comb pull the paper bits? (a) it has static charge (b) it is hot (c) it is sticky (d) it is a magnet
21. 21.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a plastic comb (b) a balloon (c) yeast (d) dry hair
22. 22.True or false: a thin water stream jumps to a charged comb. (a) False (b) True
23. 23.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: the same hair is kept the same. (a) False (b) True
24. 24.🧺 Do we need a battery cell for the static comb? (a) needed (b) not needed
25. 25.⚡ A rubbed comb is held near a steel spoon. What happens? (a) jumps to the comb (b) does not move
26. 26.True or false: dry hair jumps to a charged comb. (a) False (b) True
27. 27.🛟 Static from a comb is safe. Which electricity must children never play with? (a) a rubbed plastic comb (b) plug points at home (c) a rubbed balloon (d) paper bits on a comb
28. 28.True or false: a pebble does not move to a charged comb. (a) False (b) True
29. 29.🔮 Predict: you rub a balloon on dry hair and hold it on a wall. What happens? (a) it falls straight down (b) it sticks for a while (c) it turns into water (d) it bursts at once
30. 30.🧺 Which of these is needed for the static comb? (a) yeast (b) a balloon (c) turmeric powder (d) vinegar
31. 31.🧺 Do we need a balloon for the static comb? (a) not needed (b) needed
32. 32.True or false: a magnet is not needed for the static comb. (a) True (b) False
33. 33.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “the same hair”? (a) we keep it the same (b) we measure it (c) we change it
34. 34.🧺 Do we need a plastic comb for the static comb? (a) needed (b) not needed
35. 35.⚡ You comb dry hair and hold the comb near tiny paper bits. What happens? (a) they turn blue (b) the bits jump to it (c) nothing happens (d) they turn wet
36. 36.⚖️ 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
37. 37.🔮 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 stream bends (d) the water freezes
38. 38.True or false: dry hair is needed for the static comb. (a) True (b) False
39. 39.⚖️ 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
40. 40.🔮 Predict: you wet the comb before trying again. What happens? (a) it becomes a magnet (b) it lights up (c) it hardly works (d) it works better

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