Static Electricity Experiment Worksheet

Science experiments lesson 21: Static electricity: comb and paper bits · Set 581 · 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 “the same comb”? (a) we measure it (b) we keep it the same (c) we change it
2. 2.⚡ Why does the rubbed comb pull the paper bits? (a) it has static charge (b) it is sticky (c) it is hot (d) it is a magnet
3. 3.True or false: turmeric powder is not needed for the static comb. (a) False (b) True
4. 4.🛟 Static from a comb is safe. Which electricity must children never play with? (a) a rubbed balloon (b) plug points at home (c) a rubbed plastic comb (d) paper bits on a comb
5. 5.⚡ A rubbed comb is held near a pebble. What happens? (a) jumps to the comb (b) does not move
6. 6.🧺 Do we need a magnet for the static comb? (a) needed (b) not needed
7. 7.⚡ Which of these does not move to a charged comb? (a) puffed rice (b) a heavy book (c) tiny paper bits (d) thermocol bits
8. 8.🧺 Which of these is not needed for the static comb? (a) tiny paper bits (b) a magnet (c) a balloon (d) a plastic comb
9. 9.True or false: a heavy book jumps to a charged comb. (a) False (b) True
10. 10.⚡ You comb dry hair and hold the comb near tiny paper bits. What happens? (a) they turn blue (b) the bits jump to it (c) nothing happens (d) they turn wet
11. 11.True or false: yeast is needed for the static comb. (a) True (b) False
12. 12.⚡ Which of these does not move to a charged comb? (a) dry hair (b) a thin water stream (c) a steel spoon (d) thermocol bits
13. 13.🛟 There is lightning outside. Where is it safest to be? (a) under a tall tree (b) on a rooftop (c) indoors (d) in an open field
14. 14.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) tiny paper bits (b) a balloon (c) a magnet (d) dry hair
15. 15.🔍 Which is the odd one out? (a) a brick (b) a pebble (c) puffed rice (d) a steel spoon
16. 16.🧺 Which of these is needed for the static comb? (a) tiny paper bits (b) yeast (c) vinegar (d) a mirror
17. 17.⚡ Why does the comb trick work best on a dry day? (a) damp air leaks charge (b) wet hair is magnetic (c) dry days are noisy (d) water adds charge
18. 18.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: paper bits picked up is the one thing we change. (a) True (b) False
19. 19.⚡ A rubbed comb is held near dry hair. What happens? (a) jumps to the comb (b) does not move
20. 20.🧺 Which of these is needed for the static comb? (a) turmeric powder (b) yeast (c) a balloon (d) a magnet
21. 21.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? Which of these is what we measure? (a) the paper bit size (b) number of rubs (c) distance to the paper (d) paper bits picked up
22. 22.🧺 Which of these is needed for the static comb? (a) a magnet (b) a battery cell (c) a mirror (d) a plastic comb
23. 23.⚖️ 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
24. 24.⚖️ 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
25. 25.⚖️ 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) the same comb (c) paper bits picked up
26. 26.🧺 Do we need a plastic comb for the static comb? (a) needed (b) not needed
27. 27.True or false: a steel spoon jumps to a charged comb. (a) False (b) True
28. 28.🧺 Which of these is not needed for the static comb? (a) dry hair (b) a plastic comb (c) tiny paper bits (d) vinegar
29. 29.🧺 Which of these is not needed for the static comb? (a) tiny paper bits (b) dry hair (c) a balloon (d) a battery cell
30. 30.🔍 Which is the odd one out? (a) tiny paper bits (b) a pebble (c) a steel spoon (d) a brick
31. 31.🔮 Predict: you rub a balloon on dry hair and hold it on a wall. What happens? (a) it sticks for a while (b) it turns into water (c) it falls straight down (d) it bursts at once
32. 32.True or false: a thin water stream jumps to a charged comb. (a) True (b) False
33. 33.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a plastic comb (b) turmeric powder (c) tiny paper bits (d) a balloon
34. 34.🧺 Which of these is needed for the static comb? (a) dry hair (b) a battery cell (c) a magnet (d) a mirror
35. 35.⚡ Which of these does not move to a charged comb? (a) tiny paper bits (b) a thin water stream (c) a pebble (d) puffed rice
36. 36.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a balloon (b) dry hair (c) yeast (d) tiny paper bits
37. 37.🔍 Which is the odd one out? (a) dry hair (b) a heavy book (c) a pebble (d) a brick
38. 38.🔮 Predict: a charged comb is held near a thin stream of tap water. What happens? (a) the stream bends (b) nothing at all (c) the water freezes (d) the water stops
39. 39.True or false: a brick does not move to a charged comb. (a) False (b) True
40. 40.🧺 Do we need a mirror for the static comb? (a) not needed (b) needed

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