Static Electricity Experiment Worksheet

Science experiments lesson 21: Static electricity: comb and paper bits · Set 332 · 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) not needed (b) needed
2. 2.🔍 Which is the odd one out? (a) dry hair (b) a pebble (c) thermocol bits (d) puffed rice
3. 3.True or false: dry hair jumps to a charged comb. (a) False (b) True
4. 4.🧺 Do we need a mirror for the static comb? (a) not needed (b) needed
5. 5.🛟 Static from a comb is safe. Which electricity must children never play with? (a) paper bits on a comb (b) a rubbed plastic comb (c) plug points at home (d) a rubbed balloon
6. 6.True or false: a heavy book does not move to a charged comb. (a) False (b) True
7. 7.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? Which of these is what we measure? (a) the same hair (b) paper bits picked up (c) distance to the paper (d) number of rubs
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) dry hair (b) a balloon (c) tiny paper bits (d) a magnet
10. 10.🔍 Which is the odd one out? (a) dry hair (b) puffed rice (c) a steel spoon (d) thermocol bits
11. 11.🧺 Do we need dry hair for the static comb? (a) needed (b) not needed
12. 12.⚡ You comb dry hair and hold the comb near tiny paper bits. What happens? (a) the bits jump to it (b) nothing happens (c) they turn blue (d) they turn wet
13. 13.⚡ A rubbed comb is held near puffed rice. What happens? (a) does not move (b) jumps to the comb
14. 14.⚖️ 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
15. 15.True or false: vinegar is needed for the static comb. (a) False (b) True
16. 16.⚡ Which of these jumps to a charged comb? (a) a brick (b) a steel spoon (c) tiny paper bits (d) a heavy book
17. 17.True or false: yeast is needed for the static comb. (a) False (b) True
18. 18.🔮 Predict: you rub a balloon on dry hair and hold it on a wall. What happens? (a) it falls straight down (b) it bursts at once (c) it sticks for a while (d) it turns into water
19. 19.🧺 Do we need tiny paper bits for the static comb? (a) not needed (b) needed
20. 20.⚡ Why does the comb trick work best on a dry day? (a) wet hair is magnetic (b) dry days are noisy (c) water adds charge (d) damp air leaks charge
21. 21.🧺 Do we need yeast for the static comb? (a) not needed (b) needed
22. 22.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) vinegar (b) a plastic comb (c) dry hair (d) tiny paper bits
23. 23.True or false: a balloon is not needed for the static comb. (a) False (b) True
24. 24.True or false: turmeric powder is needed for the static comb. (a) True (b) False
25. 25.⚖️ 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) the same comb (c) paper bits picked up
26. 26.🛟 There is lightning outside. Where is it safest to be? (a) in an open field (b) on a rooftop (c) under a tall tree (d) indoors
27. 27.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) dry hair (b) a balloon (c) a plastic comb (d) turmeric powder
28. 28.🔍 Which is the odd one out? (a) dry hair (b) thermocol bits (c) a thin water stream (d) a heavy book
29. 29.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: the same comb is kept the same. (a) False (b) True
30. 30.🔮 Predict: you wet the comb before trying again. What happens? (a) it hardly works (b) it lights up (c) it becomes a magnet (d) it works better
31. 31.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: the same comb is what we measure. (a) True (b) False
32. 32.⚖️ 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) False (b) True
33. 33.⚡ Which of these does not move to a charged comb? (a) a thin water stream (b) a heavy book (c) tiny paper bits (d) dry hair
34. 34.🧺 Do we need a balloon for the static comb? (a) not needed (b) needed
35. 35.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a plastic comb (b) dry hair (c) tiny paper bits (d) a mirror
36. 36.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “distance to the paper”? (a) we change it (b) we measure it (c) we keep it the same
37. 37.⚖️ 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) False (b) True
38. 38.🧺 Which of these is not needed for the static comb? (a) a mirror (b) dry hair (c) a plastic comb (d) tiny paper bits
39. 39.True or false: tiny paper bits does not move to a charged comb. (a) True (b) False
40. 40.⚡ Which of these does not move to a charged comb? (a) a steel spoon (b) thermocol bits (c) dry hair (d) puffed rice

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