Static Electricity Experiment Worksheet

Science experiments lesson 21: Static electricity: comb and paper bits · Set 954 · 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.🔍 Which is the odd one out? (a) dry hair (b) a thin water stream (c) a brick (d) thermocol bits
2. 2.⚖️ 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) the same comb (d) number of rubs
3. 3.⚡ Which of these jumps to a charged comb? (a) a brick (b) a heavy book (c) tiny paper bits (d) a pebble
4. 4.🧺 Which of these is needed for the static comb? (a) dry hair (b) a battery cell (c) turmeric powder (d) a mirror
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) a rubbed balloon (d) plug points at home
6. 6.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) tiny paper bits (b) turmeric powder (c) a balloon (d) dry hair
7. 7.True or false: a magnet is needed for the static comb. (a) True (b) False
8. 8.⚡ A rubbed comb is held near a thin water stream. What happens? (a) does not move (b) jumps to the comb
9. 9.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a plastic comb (b) a balloon (c) yeast (d) tiny paper bits
10. 10.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) dry hair (b) a mirror (c) a balloon (d) tiny paper bits
11. 11.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? Which of these is kept the same? (a) the paper bit size (b) number of rubs (c) paper bits picked up
12. 12.True or false: a plastic comb is not needed for the static comb. (a) True (b) False
13. 13.True or false: a battery cell is needed for the static comb. (a) True (b) False
14. 14.🧺 Which of these is not needed for the static comb? (a) vinegar (b) tiny paper bits (c) a plastic comb (d) a balloon
15. 15.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) dry hair (b) vinegar (c) tiny paper bits (d) a balloon
16. 16.🔮 Predict: a charged comb is held near a thin stream of tap water. What happens? (a) the stream bends (b) nothing at all (c) the water stops (d) the water freezes
17. 17.⚡ Which of these jumps to a charged comb? (a) a heavy book (b) a pebble (c) dry hair (d) a steel spoon
18. 18.🛟 There is lightning outside. Where is it safest to be? (a) in an open field (b) indoors (c) under a tall tree (d) on a rooftop
19. 19.⚡ Why does the comb trick work best on a dry day? (a) dry days are noisy (b) water adds charge (c) wet hair is magnetic (d) damp air leaks charge
20. 20.⚡ 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
21. 21.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “distance to the paper”? (a) we measure it (b) we keep it the same (c) we change it
22. 22.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a balloon (b) tiny paper bits (c) dry hair (d) a battery cell
23. 23.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: the same hair is kept the same. (a) False (b) True
24. 24.🧺 Which of these is needed for the static comb? (a) vinegar (b) turmeric powder (c) a plastic comb (d) a mirror
25. 25.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? Which of these is the one thing we change? (a) number of rubs (b) distance to the paper (c) the paper bit size (d) paper bits picked up
26. 26.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “the paper bit size”? (a) we keep it the same (b) we change it (c) we measure it
27. 27.⚡ Which of these jumps to a charged comb? (a) a heavy book (b) a steel spoon (c) a pebble (d) thermocol bits
28. 28.True or false: puffed rice does not move to a charged comb. (a) False (b) True
29. 29.🔍 Which is the odd one out? (a) puffed rice (b) a steel spoon (c) tiny paper bits (d) a thin water stream
30. 30.🧺 Do we need a magnet for the static comb? (a) needed (b) not needed
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) False (b) True
32. 32.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a magnet (b) dry hair (c) a balloon (d) tiny paper bits
33. 33.True or false: a thin water stream jumps to a charged comb. (a) False (b) True
34. 34.⚖️ 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
35. 35.⚖️ 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
36. 36.🔍 Which is the odd one out? (a) a pebble (b) a thin water stream (c) a heavy book (d) a steel spoon
37. 37.🧺 Which of these is not needed for the static comb? (a) a plastic comb (b) a balloon (c) dry hair (d) yeast
38. 38.🧺 Do we need dry hair for the static comb? (a) not needed (b) needed
39. 39.🧺 Which of these is needed for the static comb? (a) a mirror (b) a magnet (c) a battery cell (d) a balloon
40. 40.🧺 Which of these is needed for the static comb? (a) a battery cell (b) a magnet (c) tiny paper bits (d) turmeric powder

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