Static Electricity Experiment Worksheet

Science experiments lesson 21: Static electricity: comb and paper bits · Set 466 · 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 is sticky (c) it is hot (d) it has static charge
2. 2.🧺 Do we need a plastic comb for the static comb? (a) needed (b) not needed
3. 3.🔍 Which is the odd one out? (a) a brick (b) a steel spoon (c) a heavy book (d) thermocol bits
4. 4.🧺 Which of these is not needed for the static comb? (a) yeast (b) tiny paper bits (c) a plastic comb (d) dry hair
5. 5.⚖️ 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
6. 6.🧺 Which of these is needed for the static comb? (a) turmeric powder (b) a balloon (c) vinegar (d) yeast
7. 7.📘 Rubbing moves tiny charges. What do we call the charge that builds up? (a) gravity (b) magnetism (c) static electricity (d) sunlight
8. 8.⚡ A rubbed comb is held near a brick. What happens? (a) jumps to the comb (b) does not move
9. 9.True or false: a plastic comb is not needed for the static comb. (a) False (b) True
10. 10.True or false: puffed rice jumps to a charged comb. (a) False (b) True
11. 11.🔍 Which is the odd one out? (a) a brick (b) a pebble (c) tiny paper bits (d) a steel spoon
12. 12.⚡ A rubbed comb is held near a steel spoon. What happens? (a) jumps to the comb (b) does not move
13. 13.🛟 Static from a comb is safe. Which electricity must children never play with? (a) a rubbed balloon (b) a rubbed plastic comb (c) paper bits on a comb (d) plug points at home
14. 14.🔮 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
15. 15.⚖️ 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) True (b) False
16. 16.🛟 There is lightning outside. Where is it safest to be? (a) in an open field (b) on a rooftop (c) under a tall tree (d) indoors
17. 17.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “number of rubs”? (a) we measure it (b) we keep it the same (c) we change it
18. 18.⚡ Which of these jumps to a charged comb? (a) a heavy book (b) a steel spoon (c) a brick (d) thermocol bits
19. 19.🧺 Do we need a mirror for the static comb? (a) not needed (b) needed
20. 20.🔍 Which is the odd one out? (a) a pebble (b) a heavy book (c) a steel spoon (d) a thin water stream
21. 21.🔍 Which is the odd one out? (a) thermocol bits (b) dry hair (c) a heavy book (d) a thin water stream
22. 22.🧺 Do we need dry hair for the static comb? (a) needed (b) not needed
23. 23.⚖️ 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
24. 24.🧺 Which of these is needed for the static comb? (a) turmeric powder (b) a magnet (c) dry hair (d) vinegar
25. 25.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a plastic comb (b) turmeric powder (c) dry hair (d) tiny paper bits
26. 26.🧺 Which of these is not needed for the static comb? (a) tiny paper bits (b) a magnet (c) dry hair (d) a balloon
27. 27.True or false: a magnet is not needed for the static comb. (a) False (b) True
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) False (b) True
29. 29.⚖️ 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 keep it the same (c) we change it
30. 30.⚡ Why does the comb trick work best on a dry day? (a) dry days are noisy (b) wet hair is magnetic (c) damp air leaks charge (d) water adds charge
31. 31.🧺 Which of these is not needed for the static comb? (a) dry hair (b) a balloon (c) a mirror (d) tiny paper bits
32. 32.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a battery cell (b) a balloon (c) dry hair (d) a plastic comb
33. 33.🧺 Do we need yeast for the static comb? (a) not needed (b) needed
34. 34.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? Which of these is kept the same? (a) the paper bit size (b) number of rubs (c) paper bits picked up
35. 35.🔮 Predict: a charged comb is held near a thin stream of tap water. What happens? (a) nothing at all (b) the stream bends (c) the water freezes (d) the water stops
36. 36.True or false: a heavy book jumps to a charged comb. (a) True (b) False
37. 37.🧺 Do we need tiny paper bits for the static comb? (a) not needed (b) needed
38. 38.True or false: yeast is not needed for the static comb. (a) False (b) True
39. 39.🔮 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 bursts at once (d) it falls straight down
40. 40.⚖️ 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 change it (c) we measure it

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