Static Electricity Experiment Worksheet

Science experiments lesson 21: Static electricity: comb and paper bits · Set 942 · 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.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: the same hair is what we measure. (a) True (b) False
2. 2.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “distance to the paper”? (a) we keep it the same (b) we measure it (c) we change it
3. 3.🔍 Which is the odd one out? (a) a heavy book (b) a pebble (c) puffed rice (d) a steel spoon
4. 4.🔍 Which is the odd one out? (a) a brick (b) dry hair (c) tiny paper bits (d) thermocol bits
5. 5.⚖️ 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
6. 6.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a plastic comb (b) tiny paper bits (c) a mirror (d) a balloon
7. 7.🔮 Predict: a charged comb is held near a thin stream of tap water. What happens? (a) the water stops (b) the water freezes (c) the stream bends (d) nothing at all
8. 8.🔍 Which is the odd one out? (a) puffed rice (b) dry hair (c) a thin water stream (d) a pebble
9. 9.🔮 Predict: you rub a balloon on dry hair and hold it on a wall. What happens? (a) it sticks for a while (b) it turns into water (c) it bursts at once (d) it falls straight down
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) the paper bit size (c) paper bits picked up (d) number of rubs
11. 11.⚡ A rubbed comb is held near thermocol bits. What happens? (a) does not move (b) jumps to the comb
12. 12.🧺 Which of these is needed for the static comb? (a) a battery cell (b) dry hair (c) turmeric powder (d) a magnet
13. 13.🧺 Which of these is not needed for the static comb? (a) tiny paper bits (b) a balloon (c) a plastic comb (d) turmeric powder
14. 14.True or false: a balloon is needed for the static comb. (a) True (b) False
15. 15.🧺 Do we need dry hair for the static comb? (a) not needed (b) needed
16. 16.⚡ Why does the rubbed comb pull the paper bits? (a) it is hot (b) it is sticky (c) it has static charge (d) it is a magnet
17. 17.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “the same hair”? (a) we keep it the same (b) we measure it (c) we change it
18. 18.🛟 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
19. 19.True or false: puffed rice jumps to a charged comb. (a) False (b) True
20. 20.🧺 Do we need tiny paper bits for the static comb? (a) needed (b) not needed
21. 21.⚡ Which of these does not move to a charged comb? (a) puffed rice (b) thermocol bits (c) dry hair (d) a brick
22. 22.🧺 Which of these is not needed for the static comb? (a) dry hair (b) a balloon (c) a mirror (d) a plastic comb
23. 23.⚡ Why does the comb trick work best on a dry day? (a) wet hair is magnetic (b) water adds charge (c) dry days are noisy (d) damp air leaks charge
24. 24.⚡ Which of these jumps to a charged comb? (a) a heavy book (b) a steel spoon (c) a pebble (d) tiny paper bits
25. 25.⚡ A rubbed comb is held near puffed rice. What happens? (a) does not move (b) jumps to the comb
26. 26.True or false: puffed rice does not move to a charged comb. (a) True (b) False
27. 27.⚖️ 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 change it (c) we measure it
28. 28.True or false: thermocol bits jumps to a charged comb. (a) True (b) False
29. 29.⚡ A rubbed comb is held near a heavy book. What happens? (a) does not move (b) jumps to the comb
30. 30.🧺 Which of these is not needed for the static comb? (a) a balloon (b) tiny paper bits (c) vinegar (d) dry hair
31. 31.⚡ Which of these does not move to a charged comb? (a) tiny paper bits (b) puffed rice (c) a pebble (d) a thin water stream
32. 32.🔍 Which is the odd one out? (a) thermocol bits (b) a pebble (c) a steel spoon (d) a brick
33. 33.True or false: tiny paper bits is needed for the static comb. (a) False (b) True
34. 34.True or false: turmeric powder is not needed for the static comb. (a) True (b) False
35. 35.⚡ A rubbed comb is held near dry hair. What happens? (a) jumps to the comb (b) does not move
36. 36.🧺 Which of these is not needed for the static comb? (a) a plastic comb (b) a balloon (c) a magnet (d) tiny paper bits
37. 37.🧺 Do we need a magnet for the static comb? (a) not needed (b) needed
38. 38.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a plastic comb (b) a magnet (c) tiny paper bits (d) a balloon
39. 39.🧺 Do we need yeast for the static comb? (a) not needed (b) needed
40. 40.⚖️ 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 change it (c) we measure it

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