Static Electricity Experiment Worksheet

Science experiments lesson 21: Static electricity: comb and paper bits · Set 239 · 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) tiny paper bits (c) a pebble (d) thermocol bits
2. 2.🛟 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
3. 3.🧺 Do we need a balloon for the static comb? (a) not needed (b) needed
4. 4.⚡ A rubbed comb is held near a thin water stream. What happens? (a) does not move (b) jumps to the comb
5. 5.⚡ A rubbed comb is held near dry hair. What happens? (a) jumps to the comb (b) does not move
6. 6.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: the same hair is what we measure. (a) False (b) True
7. 7.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “paper bits picked up”? (a) we keep it the same (b) we change it (c) we measure it
8. 8.🔮 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 turns into water (d) it sticks for a while
9. 9.⚖️ 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) distance to the paper (c) paper bits picked up
10. 10.🧺 Which of these is needed for the static comb? (a) a mirror (b) vinegar (c) a battery cell (d) dry hair
11. 11.True or false: puffed rice does not move to a charged comb. (a) True (b) False
12. 12.🧺 Do we need tiny paper bits for the static comb? (a) not needed (b) needed
13. 13.True or false: tiny paper bits jumps to a charged comb. (a) True (b) False
14. 14.⚡ Why does the comb trick work best on a dry day? (a) wet hair is magnetic (b) water adds charge (c) damp air leaks charge (d) dry days are noisy
15. 15.🔍 Which is the odd one out? (a) a heavy book (b) puffed rice (c) tiny paper bits (d) thermocol bits
16. 16.🧺 Do we need a battery cell for the static comb? (a) not needed (b) needed
17. 17.⚡ Which of these jumps to a charged comb? (a) a steel spoon (b) a brick (c) tiny paper bits (d) a heavy book
18. 18.⚖️ 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) the same hair (d) number of rubs
19. 19.🧺 Which of these is needed for the static comb? (a) tiny paper bits (b) a mirror (c) a magnet (d) yeast
20. 20.🛟 Static from a comb is safe. Which electricity must children never play with? (a) plug points at home (b) paper bits on a comb (c) a rubbed plastic comb (d) a rubbed balloon
21. 21.🧺 Which of these is not needed for the static comb? (a) a magnet (b) a balloon (c) tiny paper bits (d) a plastic comb
22. 22.🧺 Do we need vinegar for the static comb? (a) not needed (b) needed
23. 23.⚖️ 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) False (b) True
24. 24.📘 Rubbing moves tiny charges. What do we call the charge that builds up? (a) static electricity (b) sunlight (c) gravity (d) magnetism
25. 25.True or false: a brick jumps to a charged comb. (a) False (b) True
26. 26.True or false: a mirror is not needed for the static comb. (a) False (b) True
27. 27.🔍 Which is the odd one out? (a) puffed rice (b) dry hair (c) a pebble (d) thermocol bits
28. 28.True or false: vinegar is needed for the static comb. (a) True (b) False
29. 29.⚡ A rubbed comb is held near a heavy book. What happens? (a) jumps to the comb (b) does not move
30. 30.🔍 Which is the odd one out? (a) puffed rice (b) tiny paper bits (c) thermocol bits (d) a brick
31. 31.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a balloon (b) tiny paper bits (c) a magnet (d) dry hair
32. 32.⚡ A rubbed comb is held near a steel spoon. What happens? (a) does not move (b) jumps to the comb
33. 33.⚖️ 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
34. 34.🧺 Which of these is needed for the static comb? (a) a magnet (b) yeast (c) a balloon (d) vinegar
35. 35.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) dry hair (b) tiny paper bits (c) a plastic comb (d) vinegar
36. 36.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a plastic comb (b) dry hair (c) a balloon (d) a mirror
37. 37.⚖️ 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 keep it the same (c) we measure it
38. 38.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “the paper bit size”? (a) we measure it (b) we change it (c) we keep it the same
39. 39.🧺 Do we need yeast for the static comb? (a) not needed (b) needed
40. 40.⚡ You comb dry hair and hold the comb near tiny paper bits. What happens? (a) they turn blue (b) nothing happens (c) the bits jump to it (d) they turn wet

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