Static Electricity Experiment Worksheet

Science experiments lesson 21: Static electricity: comb and paper bits · Set 761 · 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 comb is kept the same. (a) True (b) False
2. 2.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) turmeric powder (b) tiny paper bits (c) dry hair (d) a plastic comb
3. 3.⚡ A rubbed comb is held near dry hair. What happens? (a) does not move (b) jumps to the comb
4. 4.🧺 Do we need a plastic comb for the static comb? (a) needed (b) not needed
5. 5.⚡ Which of these jumps to a charged comb? (a) a pebble (b) a steel spoon (c) a heavy book (d) puffed rice
6. 6.🛟 There is lightning outside. Where is it safest to be? (a) indoors (b) on a rooftop (c) in an open field (d) under a tall tree
7. 7.⚡ 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
8. 8.🔮 Predict: a charged comb is held near a thin stream of tap water. What happens? (a) nothing at all (b) the water stops (c) the water freezes (d) the stream bends
9. 9.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? Which of these is the one thing we change? (a) the paper bit size (b) the same comb (c) paper bits picked up (d) number of rubs
10. 10.🔮 Predict: you wet the comb before trying again. What happens? (a) it lights up (b) it hardly works (c) it becomes a magnet (d) it works better
11. 11.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) dry hair (b) a magnet (c) a balloon (d) tiny paper bits
12. 12.True or false: dry hair does not move to a charged comb. (a) False (b) True
13. 13.🧺 Do we need a battery cell for the static comb? (a) needed (b) not needed
14. 14.🛟 Static from a comb is safe. Which electricity must children never play with? (a) a rubbed balloon (b) paper bits on a comb (c) a rubbed plastic comb (d) plug points at home
15. 15.🧺 Do we need a balloon for the static comb? (a) not needed (b) needed
16. 16.⚖️ 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 measure it (c) we change it
17. 17.⚖️ 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 keep it the same (c) we measure it
18. 18.⚡ A rubbed comb is held near a brick. What happens? (a) jumps to the comb (b) does not move
19. 19.⚡ A rubbed comb is held near puffed rice. What happens? (a) jumps to the comb (b) does not move
20. 20.⚡ Why does the rubbed comb pull the paper bits? (a) it is sticky (b) it is a magnet (c) it is hot (d) it has static charge
21. 21.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: paper bits picked up is the one thing we change. (a) True (b) False
22. 22.⚖️ 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 same comb (c) the same hair (d) the paper bit size
23. 23.🔍 Which is the odd one out? (a) a thin water stream (b) puffed rice (c) a steel spoon (d) dry hair
24. 24.🧺 Which of these is not needed for the static comb? (a) a balloon (b) a plastic comb (c) dry hair (d) yeast
25. 25.⚡ Which of these does not move to a charged comb? (a) a thin water stream (b) dry hair (c) a heavy book (d) thermocol bits
26. 26.True or false: a heavy book does not move to a charged comb. (a) True (b) False
27. 27.⚡ Which of these does not move to a charged comb? (a) puffed rice (b) tiny paper bits (c) a brick (d) dry hair
28. 28.🧺 Which of these is needed for the static comb? (a) a magnet (b) dry hair (c) a battery cell (d) vinegar
29. 29.True or false: a magnet is not needed for the static comb. (a) False (b) True
30. 30.⚖️ 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
31. 31.🧺 Do we need a magnet for the static comb? (a) needed (b) not needed
32. 32.🧺 Which of these is needed for the static comb? (a) vinegar (b) yeast (c) a mirror (d) a balloon
33. 33.⚖️ 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) number of rubs (c) the paper bit size
34. 34.🔍 Which is the odd one out? (a) puffed rice (b) a heavy book (c) thermocol bits (d) a thin water stream
35. 35.⚡ Which of these jumps to a charged comb? (a) a steel spoon (b) a brick (c) thermocol bits (d) a pebble
36. 36.⚡ You comb dry hair and hold the comb near tiny paper bits. What happens? (a) they turn wet (b) nothing happens (c) the bits jump to it (d) they turn blue
37. 37.True or false: a battery cell is not needed for the static comb. (a) True (b) False
38. 38.🧺 Which of these is needed for the static comb? (a) a mirror (b) a plastic comb (c) a magnet (d) a battery cell
39. 39.⚖️ 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 same comb
40. 40.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) tiny paper bits (b) dry hair (c) a mirror (d) a balloon

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