Static Electricity Experiment Worksheet

Science experiments lesson 21: Static electricity: comb and paper bits · Set 104 · 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 jumps to a charged comb. (a) True (b) False
2. 2.⚡ 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
3. 3.🛟 Static from a comb is safe. Which electricity must children never play with? (a) paper bits on a comb (b) plug points at home (c) a rubbed balloon (d) a rubbed plastic comb
4. 4.🛟 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
5. 5.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: paper bits picked up is kept the same. (a) False (b) True
6. 6.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “paper bits picked up”? (a) we keep it the same (b) we measure it (c) we change it
7. 7.⚡ A rubbed comb is held near thermocol bits. What happens? (a) does not move (b) jumps to the comb
8. 8.⚡ A rubbed comb is held near tiny paper bits. What happens? (a) does not move (b) jumps to the comb
9. 9.⚖️ 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 paper bit size
10. 10.⚖️ 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) paper bits picked up (c) number of rubs (d) the same hair
11. 11.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) dry hair (b) a plastic comb (c) turmeric powder (d) tiny paper bits
12. 12.🧺 Do we need a magnet for the static comb? (a) needed (b) not needed
13. 13.⚡ Which of these jumps to a charged comb? (a) a brick (b) a steel spoon (c) a pebble (d) dry hair
14. 14.True or false: a plastic comb is not needed for the static comb. (a) True (b) False
15. 15.⚡ Which of these does not move to a charged comb? (a) a pebble (b) tiny paper bits (c) thermocol bits (d) dry hair
16. 16.🔮 Predict: you rub a balloon on dry hair and hold it on a wall. What happens? (a) it bursts at once (b) it falls straight down (c) it sticks for a while (d) it turns into water
17. 17.True or false: thermocol bits jumps to a charged comb. (a) False (b) True
18. 18.🧺 Which of these is not needed for the static comb? (a) yeast (b) dry hair (c) a balloon (d) a plastic comb
19. 19.True or false: dry hair jumps to a charged comb. (a) False (b) True
20. 20.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: number of rubs is kept the same. (a) True (b) False
21. 21.🧺 Do we need a battery cell for the static comb? (a) needed (b) not needed
22. 22.🧺 Do we need tiny paper bits for the static comb? (a) not needed (b) needed
23. 23.🧺 Do we need vinegar for the static comb? (a) not needed (b) needed
24. 24.🧺 Do we need a mirror for the static comb? (a) needed (b) not needed
25. 25.🔍 Which is the odd one out? (a) a heavy book (b) tiny paper bits (c) a brick (d) a pebble
26. 26.⚖️ 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
27. 27.⚡ A rubbed comb is held near a pebble. What happens? (a) jumps to the comb (b) does not move
28. 28.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: paper bits picked up is what we measure. (a) True (b) False
29. 29.⚡ A rubbed comb is held near dry hair. What happens? (a) jumps to the comb (b) does not move
30. 30.True or false: turmeric powder is needed for the static comb. (a) False (b) True
31. 31.⚡ You comb dry hair and hold the comb near tiny paper bits. What happens? (a) they turn blue (b) nothing happens (c) the bits jump to it (d) they turn wet
32. 32.⚖️ 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
33. 33.🔮 Predict: you wet the comb before trying again. What happens? (a) it works better (b) it hardly works (c) it lights up (d) it becomes a magnet
34. 34.True or false: a plastic comb is needed for the static comb. (a) True (b) False
35. 35.True or false: a steel spoon 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 balloon (b) vinegar (c) tiny paper bits (d) dry hair
37. 37.True or false: a battery cell is needed for the static comb. (a) True (b) False
38. 38.⚡ Which of these jumps to a charged comb? (a) a heavy book (b) a brick (c) a steel spoon (d) tiny paper bits
39. 39.True or false: a pebble does not move to a charged comb. (a) True (b) False
40. 40.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a plastic comb (b) tiny paper bits (c) dry hair (d) a magnet

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