Static Electricity Experiment Worksheet

Science experiments lesson 21: Static electricity: comb and paper bits · Set 841 · 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 “paper bits picked up”? (a) we change it (b) we measure it (c) we keep it the same
2. 2.⚖️ 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
3. 3.True or false: a battery cell is not needed for the static comb. (a) True (b) False
4. 4.🧺 Which of these is not needed for the static comb? (a) dry hair (b) a battery cell (c) a plastic comb (d) a balloon
5. 5.⚡ Which of these jumps to a charged comb? (a) a thin water stream (b) a heavy book (c) a pebble (d) a steel spoon
6. 6.📘 Rubbing moves tiny charges. What do we call the charge that builds up? (a) sunlight (b) gravity (c) magnetism (d) static electricity
7. 7.True or false: yeast is not needed for the static comb. (a) False (b) True
8. 8.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) dry hair (b) a plastic comb (c) turmeric powder (d) tiny paper bits
9. 9.⚡ A rubbed comb is held near a heavy book. What happens? (a) jumps to the comb (b) does not move
10. 10.⚖️ 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
11. 11.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? Which of these is the one thing we change? (a) the same hair (b) number of rubs (c) paper bits picked up (d) the same comb
12. 12.🧺 Which of these is needed for the static comb? (a) tiny paper bits (b) vinegar (c) a battery cell (d) a magnet
13. 13.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a balloon (b) a battery cell (c) a plastic comb (d) dry hair
14. 14.🔮 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
15. 15.⚡ 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
16. 16.⚖️ 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) the paper bit size
17. 17.⚡ A rubbed comb is held near thermocol bits. What happens? (a) jumps to the comb (b) does not move
18. 18.⚖️ 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
19. 19.🧺 Do we need dry hair for the static comb? (a) needed (b) not needed
20. 20.🔍 Which is the odd one out? (a) thermocol bits (b) a heavy book (c) a brick (d) a pebble
21. 21.🔮 Predict: you wet the comb before trying again. What happens? (a) it becomes a magnet (b) it hardly works (c) it works better (d) it lights up
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.⚡ Which of these does not move to a charged comb? (a) tiny paper bits (b) a heavy book (c) puffed rice (d) dry hair
24. 24.⚡ A rubbed comb is held near a brick. What happens? (a) does not move (b) jumps to the comb
25. 25.🛟 There is lightning outside. Where is it safest to be? (a) indoors (b) under a tall tree (c) on a rooftop (d) in an open field
26. 26.⚡ Which of these does not move to a charged comb? (a) dry hair (b) thermocol bits (c) tiny paper bits (d) a steel spoon
27. 27.⚖️ 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
28. 28.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a plastic comb (b) a balloon (c) a magnet (d) tiny paper bits
29. 29.🧺 Do we need a plastic comb for the static comb? (a) not needed (b) needed
30. 30.🔍 Which is the odd one out? (a) a heavy book (b) a thin water stream (c) a brick (d) a pebble
31. 31.⚡ A rubbed comb is held near a thin water stream. What happens? (a) jumps to the comb (b) does not move
32. 32.🧺 Which of these is not needed for the static comb? (a) tiny paper bits (b) dry hair (c) a balloon (d) a magnet
33. 33.🧺 Which of these is not needed for the static comb? (a) vinegar (b) tiny paper bits (c) dry hair (d) a balloon
34. 34.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) tiny paper bits (b) a balloon (c) vinegar (d) a plastic comb
35. 35.True or false: puffed rice jumps to a charged comb. (a) True (b) False
36. 36.🧺 Which of these is needed for the static comb? (a) turmeric powder (b) a magnet (c) a plastic comb (d) vinegar
37. 37.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? Which of these is kept the same? (a) paper bits picked up (b) the same comb (c) number of rubs
38. 38.⚖️ 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) distance to the paper (c) the paper bit size (d) paper bits picked up
39. 39.🛟 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 balloon (d) a rubbed plastic comb
40. 40.🔍 Which is the odd one out? (a) tiny paper bits (b) a steel spoon (c) a heavy book (d) a brick

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