Static Electricity Experiment Worksheet

Science experiments lesson 21: Static electricity: comb and paper bits · Set 111 · 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.⚡ A rubbed comb is held near dry hair. What happens? (a) jumps to the comb (b) does not move
2. 2.🧺 Which of these is needed for the static comb? (a) a mirror (b) turmeric powder (c) a plastic comb (d) vinegar
3. 3.⚡ A rubbed comb is held near a pebble. What happens? (a) jumps to the comb (b) does not move
4. 4.🛟 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
5. 5.⚖️ 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) the same comb
6. 6.True or false: a steel spoon jumps to a charged comb. (a) False (b) True
7. 7.🧺 Which of these is needed for the static comb? (a) turmeric powder (b) tiny paper bits (c) a magnet (d) yeast
8. 8.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a balloon (b) a battery cell (c) dry hair (d) tiny paper bits
9. 9.🧺 Which of these is not needed for the static comb? (a) tiny paper bits (b) a mirror (c) a plastic comb (d) dry hair
10. 10.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: the paper bit size is what we measure. (a) True (b) False
11. 11.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? Which of these is what we measure? (a) distance to the paper (b) paper bits picked up (c) number of rubs (d) the paper bit size
12. 12.🧺 Do we need vinegar for the static comb? (a) not needed (b) needed
13. 13.🧺 Do we need turmeric powder for the static comb? (a) not needed (b) needed
14. 14.True or false: a balloon is not needed for the static comb. (a) False (b) True
15. 15.True or false: a brick jumps to a charged comb. (a) True (b) False
16. 16.⚖️ 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
17. 17.⚡ Why does the rubbed comb pull the paper bits? (a) it has static charge (b) it is hot (c) it is sticky (d) it is a magnet
18. 18.🧺 Do we need tiny paper bits for the static comb? (a) not needed (b) needed
19. 19.🔮 Predict: you wet the comb before trying again. What happens? (a) it hardly works (b) it becomes a magnet (c) it works better (d) it lights up
20. 20.⚡ Which of these jumps to a charged comb? (a) dry hair (b) a brick (c) a heavy book (d) a steel spoon
21. 21.🧺 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) turmeric powder
22. 22.⚖️ 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
23. 23.⚖️ 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
24. 24.⚡ You comb dry hair and hold the comb near tiny paper bits. What happens? (a) they turn wet (b) they turn blue (c) nothing happens (d) the bits jump to it
25. 25.⚡ Why does the comb trick work best on a dry day? (a) damp air leaks charge (b) water adds charge (c) wet hair is magnetic (d) dry days are noisy
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 keep it the same (b) we measure it (c) we change it
27. 27.🔮 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 sticks for a while (d) it turns into water
28. 28.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: the same hair is kept the same. (a) True (b) False
29. 29.True or false: a pebble does not move to a charged comb. (a) True (b) False
30. 30.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) tiny paper bits (b) a balloon (c) yeast (d) dry hair
31. 31.⚖️ 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
32. 32.True or false: turmeric powder is needed for the static comb. (a) False (b) True
33. 33.⚡ A rubbed comb is held near thermocol bits. What happens? (a) jumps to the comb (b) does not move
34. 34.🛟 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
35. 35.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) vinegar (b) a balloon (c) tiny paper bits (d) dry hair
36. 36.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: paper bits picked up is kept the same. (a) True (b) False
37. 37.⚡ Which big natural spark is caused by static electricity? (a) a rainbow (b) dew (c) lightning (d) the wind
38. 38.⚡ Which of these does not move to a charged comb? (a) a thin water stream (b) dry hair (c) a brick (d) thermocol bits
39. 39.⚡ Which of these jumps to a charged comb? (a) a brick (b) a steel spoon (c) a pebble (d) thermocol bits
40. 40.🔍 Which is the odd one out? (a) tiny paper bits (b) puffed rice (c) a heavy book (d) dry hair

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