Static Electricity Experiment Worksheet

Science experiments lesson 21: Static electricity: comb and paper bits · Set 181 · 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 vinegar for the static comb? (a) needed (b) not needed
2. 2.⚡ Which of these does not move to a charged comb? (a) thermocol bits (b) puffed rice (c) a thin water stream (d) a brick
3. 3.⚡ Why does the rubbed comb pull the paper bits? (a) it is hot (b) it has static charge (c) it is a magnet (d) it is sticky
4. 4.True or false: a thin water stream does not move to a charged comb. (a) True (b) False
5. 5.⚡ Why does the comb trick work best on a dry day? (a) damp air leaks charge (b) dry days are noisy (c) wet hair is magnetic (d) water adds charge
6. 6.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) dry hair (b) a plastic comb (c) tiny paper bits (d) a mirror
7. 7.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a balloon (b) a plastic comb (c) yeast (d) dry hair
8. 8.⚖️ 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) False (b) True
9. 9.🧺 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 magnet
10. 10.⚡ You comb dry hair and hold the comb near tiny paper bits. What happens? (a) nothing happens (b) they turn wet (c) the bits jump to it (d) they turn blue
11. 11.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: distance to the paper is kept the same. (a) False (b) True
12. 12.True or false: a steel spoon jumps to a charged comb. (a) False (b) True
13. 13.🔮 Predict: you rub a balloon on dry hair and hold it on a wall. What happens? (a) it sticks for a while (b) it falls straight down (c) it turns into water (d) it bursts at once
14. 14.🔮 Predict: you wet the comb before trying again. What happens? (a) it hardly works (b) it works better (c) it lights up (d) it becomes a magnet
15. 15.⚖️ 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
16. 16.🔍 Which is the odd one out? (a) thermocol bits (b) a heavy book (c) a steel spoon (d) a brick
17. 17.True or false: a magnet is not needed for the static comb. (a) True (b) False
18. 18.🧺 Do we need dry hair for the static comb? (a) needed (b) not needed
19. 19.True or false: tiny paper bits does not move to a charged comb. (a) False (b) True
20. 20.🧺 Do we need turmeric powder for the static comb? (a) needed (b) not needed
21. 21.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? Which of these is the one thing we change? (a) paper bits picked up (b) number of rubs (c) distance to the paper (d) the same hair
22. 22.⚡ A rubbed comb is held near a pebble. What happens? (a) does not move (b) jumps to the comb
23. 23.🧺 Which of these is not needed for the static comb? (a) a plastic comb (b) yeast (c) dry hair (d) a balloon
24. 24.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: the paper bit size is kept the same. (a) True (b) False
25. 25.🧺 Which of these is needed for the static comb? (a) a battery cell (b) yeast (c) a plastic comb (d) turmeric powder
26. 26.⚡ Which of these does not move to a charged comb? (a) a thin water stream (b) a steel spoon (c) thermocol bits (d) tiny paper bits
27. 27.True or false: a heavy book jumps to a charged comb. (a) False (b) True
28. 28.🧺 Which of these is needed for the static comb? (a) yeast (b) a battery cell (c) tiny paper bits (d) turmeric powder
29. 29.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “number of rubs”? (a) we change it (b) we measure it (c) we keep it the same
30. 30.⚡ A rubbed comb is held near a brick. What happens? (a) does not move (b) jumps to the comb
31. 31.🔍 Which is the odd one out? (a) a pebble (b) a thin water stream (c) puffed rice (d) dry hair
32. 32.⚡ Which of these does not move to a charged comb? (a) puffed rice (b) a pebble (c) tiny paper bits (d) a thin water stream
33. 33.🛟 There is lightning outside. Where is it safest to be? (a) under a tall tree (b) in an open field (c) indoors (d) on a rooftop
34. 34.🧺 Which of these is needed for the static comb? (a) a magnet (b) yeast (c) a mirror (d) dry hair
35. 35.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “paper bits picked up”? (a) we measure it (b) we change it (c) we keep it the same
36. 36.🧺 Which of these is not needed for the static comb? (a) dry hair (b) turmeric powder (c) a balloon (d) a plastic comb
37. 37.🧺 Which of these is not needed for the static comb? (a) dry hair (b) a magnet (c) tiny paper bits (d) a plastic comb
38. 38.⚡ A rubbed comb is held near thermocol bits. What happens? (a) jumps to the comb (b) does not move
39. 39.🧺 Do we need a plastic comb for the static comb? (a) not needed (b) needed
40. 40.🧺 Do we need a magnet for the static comb? (a) needed (b) not needed

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