Static Electricity Experiment Worksheet

Science experiments lesson 21: Static electricity: comb and paper bits · Set 4 · 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 brick does not move to a charged comb. (a) True (b) False
2. 2.⚖️ 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 same hair (c) the same comb (d) paper bits picked up
3. 3.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: number of rubs is the one thing we change. (a) True (b) False
4. 4.🧺 Which of these is not needed for the static comb? (a) a balloon (b) tiny paper bits (c) a mirror (d) dry hair
5. 5.True or false: a heavy book does not move to a charged comb. (a) True (b) False
6. 6.⚡ You comb dry hair and hold the comb near tiny paper bits. What happens? (a) they turn blue (b) they turn wet (c) the bits jump to it (d) nothing happens
7. 7.🧺 Which of these is needed for the static comb? (a) a mirror (b) a battery cell (c) dry hair (d) vinegar
8. 8.🧺 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
9. 9.⚖️ 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
10. 10.🧺 Do we need a mirror for the static comb? (a) not needed (b) needed
11. 11.🔍 Which is the odd one out? (a) tiny paper bits (b) a steel spoon (c) a thin water stream (d) thermocol bits
12. 12.🧺 Which of these is needed for the static comb? (a) a balloon (b) a battery cell (c) vinegar (d) a magnet
13. 13.⚡ A rubbed comb is held near a thin water stream. What happens? (a) jumps to the comb (b) does not move
14. 14.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “the same comb”? (a) we change it (b) we keep it the same (c) we measure it
15. 15.🔮 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
16. 16.⚡ A rubbed comb is held near a heavy book. What happens? (a) jumps to the comb (b) does not move
17. 17.🛟 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
18. 18.True or false: dry hair does not move to a charged comb. (a) True (b) False
19. 19.⚖️ 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 hair (b) distance to the paper (c) number of rubs (d) the paper bit size
20. 20.🧺 Do we need a battery cell for the static comb? (a) needed (b) not needed
21. 21.🔍 Which is the odd one out? (a) a heavy book (b) thermocol bits (c) puffed rice (d) tiny paper bits
22. 22.True or false: a heavy book jumps to a charged comb. (a) True (b) False
23. 23.True or false: vinegar is needed for the static comb. (a) False (b) True
24. 24.⚡ Which of these jumps to a charged comb? (a) a brick (b) a pebble (c) a steel spoon (d) puffed rice
25. 25.⚡ A rubbed comb is held near dry hair. What happens? (a) jumps to the comb (b) does not move
26. 26.⚡ Which big natural spark is caused by static electricity? (a) the wind (b) a rainbow (c) dew (d) lightning
27. 27.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? Which of these is kept the same? (a) paper bits picked up (b) number of rubs (c) the same comb
28. 28.⚡ Which of these does not move to a charged comb? (a) a steel spoon (b) puffed rice (c) dry hair (d) tiny paper bits
29. 29.⚡ Which of these jumps to a charged comb? (a) a brick (b) a heavy book (c) a steel spoon (d) thermocol bits
30. 30.🧺 Do we need a magnet for the static comb? (a) needed (b) not needed
31. 31.True or false: a balloon is needed for the static comb. (a) False (b) True
32. 32.🧺 Which of these is needed for the static comb? (a) turmeric powder (b) tiny paper bits (c) yeast (d) a magnet
33. 33.True or false: a battery cell is not needed for the static comb. (a) False (b) True
34. 34.🧺 Which of these is not needed for the static comb? (a) vinegar (b) a balloon (c) tiny paper bits (d) dry hair
35. 35.True or false: puffed rice does not move to a charged comb. (a) True (b) False
36. 36.🧺 Which of these is not needed for the static comb? (a) a plastic comb (b) a magnet (c) tiny paper bits (d) a balloon
37. 37.⚡ Which of these jumps to a charged comb? (a) a steel spoon (b) tiny paper bits (c) a heavy book (d) a pebble
38. 38.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a mirror (b) a plastic comb (c) tiny paper bits (d) dry hair
39. 39.🧺 Do we need a plastic comb for the static comb? (a) needed (b) not needed
40. 40.🔮 Predict: you rub a balloon on dry hair and hold it on a wall. What happens? (a) it turns into water (b) it sticks for a while (c) it falls straight down (d) it bursts at once

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