Static Electricity Experiment Worksheet

Science experiments lesson 21: Static electricity: comb and paper bits · Set 606 · 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? What do we do with “number of rubs”? (a) we keep it the same (b) we change it (c) we measure it
2. 2.⚡ Which of these jumps to a charged comb? (a) thermocol bits (b) a heavy book (c) a steel spoon (d) a brick
3. 3.⚡ Why does the comb trick work best on a dry day? (a) wet hair is magnetic (b) dry days are noisy (c) damp air leaks charge (d) water adds charge
4. 4.⚖️ 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
5. 5.🧺 Which of these is not needed for the static comb? (a) dry hair (b) a plastic comb (c) a balloon (d) vinegar
6. 6.True or false: a steel spoon jumps to a charged comb. (a) True (b) False
7. 7.🧺 Do we need a mirror for the static comb? (a) needed (b) not needed
8. 8.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? Which of these is kept the same? (a) number of rubs (b) paper bits picked up (c) distance to the paper
9. 9.🧺 Which of these is needed for the static comb? (a) dry hair (b) a mirror (c) yeast (d) a battery cell
10. 10.⚖️ 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
11. 11.🧺 Which of these is needed for the static comb? (a) a magnet (b) a battery cell (c) yeast (d) tiny paper bits
12. 12.🧺 Do we need dry hair for the static comb? (a) needed (b) not needed
13. 13.🧺 Do we need turmeric powder for the static comb? (a) not needed (b) needed
14. 14.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: distance to the paper is kept the same. (a) True (b) False
15. 15.⚖️ 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) paper bits picked up (c) number of rubs
16. 16.True or false: a brick does not move to a charged comb. (a) False (b) True
17. 17.True or false: vinegar is not needed for the static comb. (a) True (b) False
18. 18.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “distance to the paper”? (a) we change it (b) we keep it the same (c) we measure it
19. 19.⚡ A rubbed comb is held near puffed rice. What happens? (a) jumps to the comb (b) does not move
20. 20.True or false: turmeric powder is needed for the static comb. (a) True (b) False
21. 21.🔮 Predict: you rub a balloon on dry hair and hold it on a wall. What happens? (a) it falls straight down (b) it bursts at once (c) it turns into water (d) it sticks for a while
22. 22.True or false: a plastic comb is not needed for the static comb. (a) True (b) False
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 measure it (b) we change it (c) we keep it the same
24. 24.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: the same comb is what we measure. (a) False (b) True
25. 25.True or false: puffed rice does not move to a charged comb. (a) False (b) True
26. 26.⚖️ 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) the same hair (c) the same comb (d) paper bits picked up
27. 27.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a plastic comb (b) turmeric powder (c) a balloon (d) tiny paper bits
28. 28.True or false: tiny paper bits jumps to a charged comb. (a) False (b) True
29. 29.⚡ Which of these jumps to a charged comb? (a) a steel spoon (b) tiny paper bits (c) a heavy book (d) a brick
30. 30.⚡ A rubbed comb is held near dry hair. What happens? (a) does not move (b) jumps to the comb
31. 31.⚡ A rubbed comb is held near tiny paper bits. What happens? (a) does not move (b) jumps to the comb
32. 32.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: number of rubs is kept the same. (a) False (b) True
33. 33.🛟 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
34. 34.⚖️ 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 hair (c) distance to the paper (d) the same comb
35. 35.📘 Rubbing moves tiny charges. What do we call the charge that builds up? (a) sunlight (b) static electricity (c) gravity (d) magnetism
36. 36.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) tiny paper bits (b) yeast (c) a balloon (d) a plastic comb
37. 37.🔮 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
38. 38.🔍 Which is the odd one out? (a) a brick (b) thermocol bits (c) tiny paper bits (d) a thin water stream
39. 39.⚡ Which big natural spark is caused by static electricity? (a) a rainbow (b) the wind (c) lightning (d) dew
40. 40.⚡ A rubbed comb is held near a pebble. What happens? (a) jumps to the comb (b) does not move

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