Static Electricity Experiment Worksheet

Science experiments lesson 21: Static electricity: comb and paper bits · Set 272 · 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.True or false: thermocol bits jumps to a charged comb. (a) False (b) True
2. 2.⚡ A rubbed comb is held near dry hair. What happens? (a) does not move (b) jumps to the comb
3. 3.⚡ Which of these jumps to a charged comb? (a) tiny paper bits (b) a brick (c) a pebble (d) a heavy book
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) False (b) True
5. 5.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a magnet (b) tiny paper bits (c) a balloon (d) a plastic comb
6. 6.⚡ You comb dry hair and hold the comb near tiny paper bits. What happens? (a) the bits jump to it (b) nothing happens (c) they turn wet (d) they turn blue
7. 7.⚡ Why does the comb trick work best on a dry day? (a) dry days are noisy (b) wet hair is magnetic (c) damp air leaks charge (d) water adds charge
8. 8.⚖️ 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) False (b) True
9. 9.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a plastic comb (b) tiny paper bits (c) vinegar (d) dry hair
10. 10.🔍 Which is the odd one out? (a) a heavy book (b) a brick (c) puffed rice (d) a pebble
11. 11.True or false: a battery cell is not needed for the static comb. (a) True (b) False
12. 12.🛟 Static from a comb is safe. Which electricity must children never play with? (a) a rubbed plastic comb (b) a rubbed balloon (c) paper bits on a comb (d) plug points at home
13. 13.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a mirror (b) a plastic comb (c) dry hair (d) tiny paper bits
14. 14.🧺 Which of these is needed for the static comb? (a) a mirror (b) a balloon (c) a battery cell (d) yeast
15. 15.⚡ A rubbed comb is held near a pebble. What happens? (a) does not move (b) jumps to the comb
16. 16.🧺 Do we need a battery cell for the static comb? (a) needed (b) not needed
17. 17.⚡ Which of these does not move to a charged comb? (a) puffed rice (b) tiny paper bits (c) a heavy book (d) a thin water stream
18. 18.🧺 Which of these is not needed for the static comb? (a) tiny paper bits (b) a plastic comb (c) a battery cell (d) a balloon
19. 19.🔮 Predict: a charged comb is held near a thin stream of tap water. What happens? (a) the water stops (b) nothing at all (c) the stream bends (d) the water freezes
20. 20.🔮 Predict: you rub a balloon on dry hair and hold it on a wall. What happens? (a) it sticks for a while (b) it falls straight down (c) it turns into water (d) it bursts at once
21. 21.⚖️ 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) distance to the paper (c) paper bits picked up
22. 22.True or false: turmeric powder is needed for the static comb. (a) True (b) False
23. 23.🧺 Which of these is not needed for the static comb? (a) tiny paper bits (b) a balloon (c) turmeric powder (d) a plastic comb
24. 24.🧺 Do we need a mirror for the static comb? (a) needed (b) not needed
25. 25.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “the paper bit size”? (a) we change it (b) we measure it (c) we keep it the same
26. 26.🧺 Do we need tiny paper bits for the static comb? (a) not needed (b) needed
27. 27.True or false: a mirror is not needed for the static comb. (a) True (b) False
28. 28.🔍 Which is the odd one out? (a) a thin water stream (b) a pebble (c) a brick (d) a steel spoon
29. 29.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: paper bits picked up is what we measure. (a) True (b) False
30. 30.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a balloon (b) dry hair (c) turmeric powder (d) tiny paper bits
31. 31.🔍 Which is the odd one out? (a) tiny paper bits (b) thermocol bits (c) puffed rice (d) a heavy book
32. 32.True or false: vinegar is needed for the static comb. (a) False (b) True
33. 33.True or false: tiny paper bits jumps to a charged comb. (a) True (b) False
34. 34.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: the paper bit size is what we measure. (a) True (b) False
35. 35.⚖️ 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
36. 36.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? Which of these is what we measure? (a) the same comb (b) the paper bit size (c) paper bits picked up (d) distance to the paper
37. 37.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) tiny paper bits (b) a balloon (c) a plastic comb (d) a battery cell
38. 38.True or false: puffed rice jumps to a charged comb. (a) False (b) True
39. 39.True or false: puffed rice does not move to a charged comb. (a) False (b) True
40. 40.🧺 Do we need yeast for the static comb? (a) needed (b) not needed

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