Static Electricity Experiment Worksheet

Science experiments lesson 21: Static electricity: comb and paper bits · Set 224 · 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.🛟 Static from a comb is safe. Which electricity must children never play with? (a) plug points at home (b) a rubbed plastic comb (c) a rubbed balloon (d) paper bits on a comb
2. 2.🧺 Which of these is needed for the static comb? (a) tiny paper bits (b) a mirror (c) a battery cell (d) turmeric powder
3. 3.🧺 Which of these is needed for the static comb? (a) a magnet (b) a mirror (c) a battery cell (d) a plastic comb
4. 4.True or false: a brick does not move to a charged comb. (a) False (b) True
5. 5.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) turmeric powder (b) tiny paper bits (c) a plastic comb (d) a balloon
6. 6.True or false: turmeric powder is not needed for the static comb. (a) True (b) False
7. 7.🧺 Which of these is needed for the static comb? (a) yeast (b) a mirror (c) turmeric powder (d) dry hair
8. 8.📘 Rubbing moves tiny charges. What do we call the charge that builds up? (a) magnetism (b) static electricity (c) gravity (d) sunlight
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) the same comb (c) the same hair (d) distance to the paper
10. 10.True or false: a plastic comb is needed for the static comb. (a) True (b) False
11. 11.True or false: a steel spoon does not move to a charged comb. (a) True (b) False
12. 12.True or false: dry hair is not needed for the static comb. (a) False (b) True
13. 13.🧺 Do we need yeast for the static comb? (a) needed (b) not needed
14. 14.True or false: vinegar is needed for the static comb. (a) False (b) True
15. 15.⚖️ 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 change it (c) we keep it the same
16. 16.🔮 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
17. 17.🔮 Predict: you rub a balloon on dry hair and hold it on a wall. What happens? (a) it bursts at once (b) it falls straight down (c) it sticks for a while (d) it turns into water
18. 18.True or false: dry hair does not move to a charged comb. (a) True (b) False
19. 19.⚖️ 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
20. 20.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: the same hair is what we measure. (a) True (b) False
21. 21.🛟 There is lightning outside. Where is it safest to be? (a) indoors (b) in an open field (c) on a rooftop (d) under a tall tree
22. 22.⚡ Why does the comb trick work best on a dry day? (a) damp air leaks charge (b) water adds charge (c) dry days are noisy (d) wet hair is magnetic
23. 23.True or false: a balloon is not needed for the static comb. (a) True (b) False
24. 24.🧺 Which of these is not needed for the static comb? (a) tiny paper bits (b) a plastic comb (c) a magnet (d) dry hair
25. 25.⚡ Which of these jumps to a charged comb? (a) a heavy book (b) thermocol bits (c) a steel spoon (d) a pebble
26. 26.🔍 Which is the odd one out? (a) dry hair (b) a brick (c) a thin water stream (d) thermocol bits
27. 27.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “the same hair”? (a) we measure it (b) we change it (c) we keep it the same
28. 28.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) dry hair (b) a magnet (c) a plastic comb (d) tiny paper bits
29. 29.⚡ A rubbed comb is held near dry hair. What happens? (a) does not move (b) jumps to the comb
30. 30.True or false: puffed rice does not move to a charged comb. (a) True (b) False
31. 31.🔍 Which is the odd one out? (a) a heavy book (b) a thin water stream (c) thermocol bits (d) dry hair
32. 32.True or false: a pebble does not move to a charged comb. (a) False (b) True
33. 33.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? Which of these is kept the same? (a) distance to the paper (b) number of rubs (c) paper bits picked up
34. 34.True or false: yeast is not needed for the static comb. (a) False (b) True
35. 35.⚖️ 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) False (b) True
36. 36.True or false: tiny paper bits is needed for the static comb. (a) False (b) True
37. 37.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “the same comb”? (a) we measure it (b) we change it (c) we keep it the same
38. 38.True or false: a mirror is not needed for the static comb. (a) True (b) False
39. 39.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? Which of these is what we measure? (a) number of rubs (b) paper bits picked up (c) the paper bit size (d) the same comb
40. 40.🧺 Do we need a magnet for the static comb? (a) needed (b) not needed

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