Static Electricity Experiment Worksheet

Science experiments lesson 21: Static electricity: comb and paper bits · Set 748 · 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) puffed rice (b) tiny paper bits (c) a heavy book (d) dry hair
2. 2.True or false: a mirror is needed for the static comb. (a) True (b) False
3. 3.⚡ Why does the comb trick work best on a dry day? (a) dry days are noisy (b) water adds charge (c) damp air leaks charge (d) wet hair is magnetic
4. 4.⚡ A rubbed comb is held near dry hair. What happens? (a) jumps to the comb (b) does not move
5. 5.🧺 Which of these is needed for the static comb? (a) yeast (b) a battery cell (c) a mirror (d) a plastic comb
6. 6.⚡ A rubbed comb is held near a heavy book. What happens? (a) jumps to the comb (b) does not move
7. 7.⚡ A rubbed comb is held near thermocol bits. What happens? (a) does not move (b) jumps to the comb
8. 8.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a plastic comb (b) dry hair (c) turmeric powder (d) a balloon
9. 9.🔮 Predict: you wet the comb before trying again. What happens? (a) it lights up (b) it works better (c) it hardly works (d) it becomes a magnet
10. 10.⚖️ 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
11. 11.⚖️ 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
12. 12.⚖️ 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 change it (c) we measure it
13. 13.True or false: vinegar is needed for the static comb. (a) True (b) False
14. 14.🔮 Predict: a charged comb is held near a thin stream of tap water. What happens? (a) the water stops (b) nothing at all (c) the stream bends (d) the water freezes
15. 15.🔍 Which is the odd one out? (a) puffed rice (b) thermocol bits (c) dry hair (d) a steel spoon
16. 16.True or false: a mirror is not needed for the static comb. (a) False (b) True
17. 17.⚡ You comb dry hair and hold the comb near tiny paper bits. What happens? (a) they turn blue (b) they turn wet (c) the bits jump to it (d) nothing happens
18. 18.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a plastic comb (b) dry hair (c) a magnet (d) a balloon
19. 19.🧺 Do we need dry hair for the static comb? (a) needed (b) not needed
20. 20.🧺 Do we need yeast for the static comb? (a) needed (b) not needed
21. 21.🛟 There is lightning outside. Where is it safest to be? (a) on a rooftop (b) indoors (c) in an open field (d) under a tall tree
22. 22.⚡ Which of these does not move to a charged comb? (a) a brick (b) thermocol bits (c) tiny paper bits (d) dry hair
23. 23.🔍 Which is the odd one out? (a) a heavy book (b) tiny paper bits (c) thermocol bits (d) dry hair
24. 24.True or false: a pebble jumps to a charged comb. (a) True (b) False
25. 25.⚖️ 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) the paper bit size (c) number of rubs (d) paper bits picked up
26. 26.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? Which of these is kept the same? (a) the same hair (b) number of rubs (c) paper bits picked up
27. 27.⚡ Which big natural spark is caused by static electricity? (a) the wind (b) dew (c) lightning (d) a rainbow
28. 28.True or false: tiny paper bits is not needed for the static comb. (a) False (b) True
29. 29.🧺 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
30. 30.🔮 Predict: you rub a balloon on dry hair and hold it on a wall. What happens? (a) it sticks for a while (b) it turns into water (c) it bursts at once (d) it falls straight down
31. 31.📘 Rubbing moves tiny charges. What do we call the charge that builds up? (a) magnetism (b) sunlight (c) static electricity (d) gravity
32. 32.⚖️ 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
33. 33.⚖️ 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) the same comb (c) distance to the paper (d) the same hair
34. 34.🧺 Which of these is not needed for the static comb? (a) a plastic comb (b) turmeric powder (c) dry hair (d) a balloon
35. 35.⚖️ 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
36. 36.🧺 Which of these is needed for the static comb? (a) a mirror (b) turmeric powder (c) dry hair (d) a magnet
37. 37.🧺 Which of these is needed for the static comb? (a) a magnet (b) vinegar (c) yeast (d) a balloon
38. 38.True or false: a thin water stream does not move to a charged comb. (a) False (b) True
39. 39.🧺 Do we need a battery cell for the static comb? (a) not needed (b) needed
40. 40.True or false: thermocol bits jumps to a charged comb. (a) True (b) False

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