Static Electricity Experiment Worksheet

Science experiments lesson 21: Static electricity: comb and paper bits · Set 429 · 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 of these does not move to a charged comb? (a) dry hair (b) a thin water stream (c) a heavy book (d) thermocol bits
2. 2.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “paper bits picked up”? (a) we change it (b) we measure it (c) we keep it the same
3. 3.⚖️ 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
4. 4.⚡ A rubbed comb is held near puffed rice. What happens? (a) does not move (b) jumps to the comb
5. 5.🔮 Predict: you wet the comb before trying again. What happens? (a) it becomes a magnet (b) it hardly works (c) it works better (d) it lights up
6. 6.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “the same hair”? (a) we measure it (b) we change it (c) we keep it the same
7. 7.🧺 Which of these is not needed for the static comb? (a) dry hair (b) turmeric powder (c) tiny paper bits (d) a plastic comb
8. 8.🛟 Static from a comb is safe. Which electricity must children never play with? (a) plug points at home (b) a rubbed plastic comb (c) paper bits on a comb (d) a rubbed balloon
9. 9.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: the same comb is the one thing we change. (a) False (b) True
10. 10.⚡ Which of these does not move to a charged comb? (a) a thin water stream (b) puffed rice (c) dry hair (d) a brick
11. 11.🧺 Which of these is not needed for the static comb? (a) dry hair (b) tiny paper bits (c) vinegar (d) a balloon
12. 12.🧺 Which of these is needed for the static comb? (a) yeast (b) vinegar (c) a battery cell (d) a plastic comb
13. 13.🔍 Which is the odd one out? (a) puffed rice (b) a steel spoon (c) a thin water stream (d) tiny paper bits
14. 14.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? Which of these is what we measure? (a) paper bits picked up (b) the paper bit size (c) the same comb (d) number of rubs
15. 15.⚖️ 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
16. 16.🧺 Do we need a mirror for the static comb? (a) needed (b) not needed
17. 17.⚡ A rubbed comb is held near a brick. What happens? (a) jumps to the comb (b) does not move
18. 18.⚡ A rubbed comb is held near a steel spoon. What happens? (a) does not move (b) jumps to the comb
19. 19.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? Which of these is kept the same? (a) paper bits picked up (b) distance to the paper (c) number of rubs
20. 20.🛟 There is lightning outside. Where is it safest to be? (a) indoors (b) under a tall tree (c) on a rooftop (d) in an open field
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) the same comb (b) number of rubs (c) the same hair (d) paper bits picked up
22. 22.True or false: a steel spoon jumps to a charged comb. (a) True (b) False
23. 23.True or false: vinegar is not needed for the static comb. (a) False (b) True
24. 24.⚡ Why does the rubbed comb pull the paper bits? (a) it is a magnet (b) it is hot (c) it has static charge (d) it is sticky
25. 25.🧺 Which of these is not needed for the static comb? (a) a balloon (b) a magnet (c) a plastic comb (d) dry hair
26. 26.⚖️ 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 change it (c) we keep it the same
27. 27.🧺 Which of these is needed for the static comb? (a) dry hair (b) a mirror (c) vinegar (d) a battery cell
28. 28.True or false: a pebble does not move to a charged comb. (a) False (b) True
29. 29.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a mirror (b) dry hair (c) a plastic comb (d) tiny paper bits
30. 30.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a balloon (b) a plastic comb (c) a battery cell (d) dry hair
31. 31.⚡ Which of these does not move to a charged comb? (a) tiny paper bits (b) thermocol bits (c) a steel spoon (d) dry hair
32. 32.🧺 Which of these is needed for the static comb? (a) yeast (b) turmeric powder (c) a mirror (d) tiny paper bits
33. 33.🧺 Do we need a battery cell for the static comb? (a) needed (b) not needed
34. 34.True or false: a mirror is not needed for the static comb. (a) False (b) True
35. 35.⚡ Which of these jumps to a charged comb? (a) a steel spoon (b) a pebble (c) a brick (d) dry hair
36. 36.True or false: tiny paper bits is not needed for the static comb. (a) True (b) False
37. 37.⚡ Why does the comb trick work best on a dry day? (a) water adds charge (b) wet hair is magnetic (c) damp air leaks charge (d) dry days are noisy
38. 38.🔍 Which is the odd one out? (a) a thin water stream (b) a heavy book (c) a steel spoon (d) a pebble
39. 39.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? Which of these is kept the same? (a) paper bits picked up (b) the same comb (c) number of rubs
40. 40.⚖️ 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

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