Static Electricity Experiment Worksheet

Science experiments lesson 21: Static electricity: comb and paper bits · Set 537 · 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.⚡ Why does the rubbed comb pull the paper bits? (a) it is a magnet (b) it has static charge (c) it is sticky (d) it is hot
2. 2.True or false: a battery cell is not needed for the static comb. (a) True (b) False
3. 3.🛟 Static from a comb is safe. Which electricity must children never play with? (a) paper bits on a comb (b) plug points at home (c) a rubbed plastic comb (d) a rubbed balloon
4. 4.🧺 Do we need a balloon for the static comb? (a) not needed (b) needed
5. 5.🔮 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
6. 6.True or false: tiny paper bits does not move to a charged comb. (a) True (b) False
7. 7.🛟 There is lightning outside. Where is it safest to be? (a) indoors (b) in an open field (c) under a tall tree (d) on a rooftop
8. 8.True or false: a brick does not move to a charged comb. (a) False (b) True
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) number of rubs (b) paper bits picked up (c) the same comb (d) the same hair
10. 10.True or false: puffed rice jumps to a charged comb. (a) True (b) False
11. 11.⚡ Which of these jumps to a charged comb? (a) a pebble (b) a steel spoon (c) thermocol bits (d) a heavy book
12. 12.⚖️ 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
13. 13.🔮 Predict: you rub a balloon on dry hair and hold it on a wall. What happens? (a) it turns into water (b) it sticks for a while (c) it falls straight down (d) it bursts at once
14. 14.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “the same hair”? (a) we change it (b) we keep it the same (c) we measure it
15. 15.⚡ Which of these jumps to a charged comb? (a) a heavy book (b) a brick (c) a thin water stream (d) a pebble
16. 16.⚖️ 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) number of rubs (c) the paper bit size (d) the same hair
17. 17.🧺 Which of these is needed for the static comb? (a) vinegar (b) yeast (c) tiny paper bits (d) a magnet
18. 18.⚡ Why does the comb trick work best on a dry day? (a) water adds charge (b) damp air leaks charge (c) dry days are noisy (d) wet hair is magnetic
19. 19.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a battery cell (b) tiny paper bits (c) a plastic comb (d) dry hair
20. 20.🧺 Which of these is needed for the static comb? (a) a magnet (b) dry hair (c) a mirror (d) vinegar
21. 21.True or false: turmeric powder is not needed for the static comb. (a) False (b) True
22. 22.True or false: thermocol bits does not move to a charged comb. (a) True (b) False
23. 23.🧺 Do we need vinegar for the static comb? (a) needed (b) not needed
24. 24.🔮 Predict: you wet the comb before trying again. What happens? (a) it hardly works (b) it lights up (c) it becomes a magnet (d) it works better
25. 25.True or false: a plastic comb is not needed for the static comb. (a) False (b) True
26. 26.🧺 Which of these is needed for the static comb? (a) turmeric powder (b) a balloon (c) yeast (d) a magnet
27. 27.🧺 Which of these is needed for the static comb? (a) a plastic comb (b) yeast (c) vinegar (d) a battery cell
28. 28.🔍 Which is the odd one out? (a) a thin water stream (b) tiny paper bits (c) a heavy book (d) thermocol bits
29. 29.📘 Rubbing moves tiny charges. What do we call the charge that builds up? (a) sunlight (b) gravity (c) static electricity (d) magnetism
30. 30.🧺 Do we need dry hair for the static comb? (a) needed (b) not needed
31. 31.⚡ A rubbed comb is held near tiny paper bits. What happens? (a) does not move (b) jumps to the comb
32. 32.True or false: dry hair is not needed for the static comb. (a) False (b) True
33. 33.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: paper bits picked up is what we measure. (a) True (b) False
34. 34.⚡ You comb dry hair and hold the comb near tiny paper bits. What happens? (a) they turn blue (b) the bits jump to it (c) nothing happens (d) they turn wet
35. 35.🧺 Which of these is not needed for the static comb? (a) dry hair (b) tiny paper bits (c) vinegar (d) a balloon
36. 36.True or false: a pebble does not move to a charged comb. (a) False (b) True
37. 37.True or false: a brick jumps to a charged comb. (a) False (b) True
38. 38.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a plastic comb (b) yeast (c) dry hair (d) a balloon
39. 39.⚡ Which of these does not move to a charged comb? (a) thermocol bits (b) a thin water stream (c) a steel spoon (d) puffed rice
40. 40.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: number of rubs is what we measure. (a) True (b) False

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