Static Electricity Experiment Worksheet

Science experiments lesson 21: Static electricity: comb and paper bits · Set 864 · 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.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) turmeric powder (b) dry hair (c) a balloon (d) a plastic comb
2. 2.🔍 Which is the odd one out? (a) a pebble (b) dry hair (c) a thin water stream (d) puffed rice
3. 3.🧺 Do we need yeast for the static comb? (a) not needed (b) needed
4. 4.🛟 There is lightning outside. Where is it safest to be? (a) under a tall tree (b) on a rooftop (c) in an open field (d) indoors
5. 5.True or false: a magnet is not needed for the static comb. (a) False (b) True
6. 6.True or false: vinegar is not needed for the static comb. (a) True (b) False
7. 7.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? Which of these is kept the same? (a) number of rubs (b) paper bits picked up (c) the same hair
8. 8.🔍 Which is the odd one out? (a) a heavy book (b) tiny paper bits (c) a thin water stream (d) dry hair
9. 9.🧺 Do we need tiny paper bits for the static comb? (a) needed (b) not needed
10. 10.⚡ Which of these jumps to a charged comb? (a) a brick (b) dry hair (c) a heavy book (d) a pebble
11. 11.⚖️ 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 change it (c) we keep it the same
12. 12.⚖️ 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) paper bits picked up (d) the same hair
13. 13.🔍 Which is the odd one out? (a) a steel spoon (b) thermocol bits (c) a thin water stream (d) puffed rice
14. 14.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) tiny paper bits (b) a balloon (c) a plastic comb (d) a mirror
15. 15.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) dry hair (b) tiny paper bits (c) a balloon (d) a magnet
16. 16.🧺 Do we need dry hair for the static comb? (a) not needed (b) needed
17. 17.⚡ Which of these does not move to a charged comb? (a) a thin water stream (b) thermocol bits (c) tiny paper bits (d) a heavy book
18. 18.⚡ A rubbed comb is held near a steel spoon. What happens? (a) does not move (b) jumps to the comb
19. 19.⚖️ 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
20. 20.True or false: a plastic comb is needed for the static comb. (a) False (b) True
21. 21.🔮 Predict: you wet the comb before trying again. What happens? (a) it becomes a magnet (b) it works better (c) it hardly works (d) it lights up
22. 22.True or false: tiny paper bits jumps to a charged comb. (a) False (b) True
23. 23.⚡ Which of these does not move to a charged comb? (a) a thin water stream (b) a brick (c) puffed rice (d) thermocol bits
24. 24.⚖️ 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
25. 25.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a battery cell (b) tiny paper bits (c) a balloon (d) a plastic comb
26. 26.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? Which of these is kept the same? (a) distance to the paper (b) paper bits picked up (c) number of rubs
27. 27.True or false: a steel spoon jumps to a charged comb. (a) False (b) True
28. 28.True or false: turmeric powder is needed for the static comb. (a) True (b) False
29. 29.⚖️ 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
30. 30.🛟 Static from a comb is safe. Which electricity must children never play with? (a) plug points at home (b) paper bits on a comb (c) a rubbed plastic comb (d) a rubbed balloon
31. 31.⚡ Why does the comb trick work best on a dry day? (a) wet hair is magnetic (b) damp air leaks charge (c) water adds charge (d) dry days are noisy
32. 32.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a balloon (b) dry hair (c) vinegar (d) a plastic comb
33. 33.⚖️ 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) paper bits picked up (c) the same comb (d) distance to the paper
34. 34.⚡ Which of these does not move to a charged comb? (a) a thin water stream (b) a steel spoon (c) tiny paper bits (d) dry hair
35. 35.⚡ Which of these jumps to a charged comb? (a) a pebble (b) a steel spoon (c) a heavy book (d) thermocol bits
36. 36.🧺 Which of these is not needed for the static comb? (a) turmeric powder (b) tiny paper bits (c) a balloon (d) a plastic comb
37. 37.🧺 Do we need a magnet for the static comb? (a) not needed (b) needed
38. 38.True or false: puffed rice jumps to a charged 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 “paper bits picked up”? (a) we change it (b) we measure it (c) we keep it the same
40. 40.⚖️ 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

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