Static Electricity Experiment Worksheet

Science experiments lesson 21: Static electricity: comb and paper bits · Set 999 · 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.⚖️ 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
2. 2.⚡ Which of these jumps to a charged comb? (a) a pebble (b) a heavy book (c) a brick (d) puffed rice
3. 3.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) tiny paper bits (b) dry hair (c) a balloon (d) turmeric powder
4. 4.⚡ Why does the comb trick work best on a dry day? (a) dry days are noisy (b) wet hair is magnetic (c) water adds charge (d) damp air leaks charge
5. 5.True or false: yeast is needed for the static comb. (a) True (b) False
6. 6.🧺 Which of these is needed for the static comb? (a) yeast (b) vinegar (c) a balloon (d) a mirror
7. 7.⚖️ 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
8. 8.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? Which of these is kept the same? (a) the same comb (b) paper bits picked up (c) number of rubs
9. 9.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “paper bits picked up”? (a) we measure it (b) we keep it the same (c) we change it
10. 10.🔮 Predict: you wet the comb before trying again. What happens? (a) it becomes a magnet (b) it works better (c) it lights up (d) it hardly works
11. 11.⚡ Which of these does not move to a charged comb? (a) tiny paper bits (b) dry hair (c) a thin water stream (d) a heavy book
12. 12.True or false: a mirror is needed for the static comb. (a) False (b) True
13. 13.True or false: dry hair does not move to a charged comb. (a) False (b) True
14. 14.⚖️ 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
15. 15.🔍 Which is the odd one out? (a) a brick (b) a heavy book (c) thermocol bits (d) a pebble
16. 16.⚡ Which of these does not move to a charged comb? (a) a steel spoon (b) thermocol bits (c) dry hair (d) puffed rice
17. 17.🛟 Static from a comb is safe. Which electricity must children never play with? (a) a rubbed balloon (b) paper bits on a comb (c) plug points at home (d) a rubbed plastic comb
18. 18.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? Which of these is what we measure? (a) the same hair (b) distance to the paper (c) the same comb (d) paper bits picked up
19. 19.🧺 Which of these is not needed for the static comb? (a) dry hair (b) a balloon (c) turmeric powder (d) tiny paper bits
20. 20.🔮 Predict: you rub a balloon on dry hair and hold it on a wall. What happens? (a) it falls straight down (b) it turns into water (c) it sticks for a while (d) it bursts at once
21. 21.🧺 Do we need a mirror for the static comb? (a) needed (b) not needed
22. 22.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “the same comb”? (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? True or false: the paper bit size is kept the same. (a) True (b) False
24. 24.True or false: tiny paper bits is not needed for the static comb. (a) True (b) False
25. 25.🧺 Do we need tiny paper bits for the static comb? (a) needed (b) not needed
26. 26.True or false: puffed rice jumps to a charged comb. (a) True (b) False
27. 27.True or false: puffed rice does not move to a charged comb. (a) False (b) True
28. 28.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) tiny paper bits (b) vinegar (c) dry hair (d) a balloon
29. 29.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) dry hair (b) a balloon (c) tiny paper bits (d) yeast
30. 30.🔍 Which is the odd one out? (a) a steel spoon (b) a brick (c) tiny paper bits (d) a pebble
31. 31.🧺 Which of these is needed for the static comb? (a) dry hair (b) a mirror (c) yeast (d) turmeric powder
32. 32.True or false: tiny paper bits 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.True or false: a steel spoon jumps to a charged comb. (a) True (b) False
35. 35.⚡ Which of these jumps to a charged comb? (a) a heavy book (b) thermocol bits (c) a steel spoon (d) a brick
36. 36.True or false: a balloon is not needed for the static comb. (a) True (b) False
37. 37.⚡ You comb dry hair and hold the comb near tiny paper bits. What happens? (a) they turn blue (b) they turn wet (c) nothing happens (d) the bits jump to it
38. 38.True or false: a steel spoon does not move to a charged comb. (a) False (b) True
39. 39.⚖️ 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) False (b) True
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 measure it (c) we change it

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