Static Electricity Experiment Worksheet

Science experiments lesson 21: Static electricity: comb and paper bits · Set 754 · 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? Which of these is kept the same? (a) paper bits picked up (b) distance to the paper (c) number of rubs
2. 2.⚖️ 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
3. 3.⚖️ 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 keep it the same (c) we measure it
4. 4.True or false: a brick does not move to a charged comb. (a) False (b) True
5. 5.⚡ 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
6. 6.🔮 Predict: you wet the comb before trying again. What happens? (a) it hardly works (b) it lights up (c) it becomes a magnet (d) it works better
7. 7.True or false: puffed rice does not move to a charged comb. (a) True (b) False
8. 8.🛟 Static from a comb is safe. Which electricity must children never play with? (a) a rubbed balloon (b) a rubbed plastic comb (c) paper bits on a comb (d) plug points at home
9. 9.⚡ A rubbed comb is held near tiny paper bits. What happens? (a) jumps to the comb (b) does not move
10. 10.🔍 Which is the odd one out? (a) a heavy book (b) a steel spoon (c) a pebble (d) puffed rice
11. 11.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) dry hair (b) tiny paper bits (c) a balloon (d) a magnet
12. 12.⚖️ 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 change it (c) we keep it the same
13. 13.True or false: a mirror is not needed for the static comb. (a) False (b) True
14. 14.True or false: turmeric powder is needed for the static comb. (a) True (b) False
15. 15.True or false: dry hair does not move to a charged comb. (a) True (b) False
16. 16.🔍 Which is the odd one out? (a) a heavy book (b) a brick (c) dry hair (d) a pebble
17. 17.⚖️ 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) distance to the paper (d) the paper bit size
18. 18.⚡ Which of these does not move to a charged comb? (a) dry hair (b) puffed rice (c) thermocol bits (d) a heavy book
19. 19.⚡ A rubbed comb is held near a brick. What happens? (a) jumps to the comb (b) does not move
20. 20.🛟 There is lightning outside. Where is it safest to be? (a) on a rooftop (b) indoors (c) in an open field (d) under a tall tree
21. 21.🔮 Predict: you rub a balloon on dry hair and hold it on a wall. What happens? (a) it turns into water (b) it bursts at once (c) it sticks for a while (d) it falls straight down
22. 22.🧺 Which of these is not needed for the static comb? (a) tiny paper bits (b) yeast (c) a balloon (d) a plastic comb
23. 23.True or false: tiny paper bits is needed for the static comb. (a) True (b) False
24. 24.⚖️ 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
25. 25.⚖️ 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
26. 26.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) tiny paper bits (b) a mirror (c) dry hair (d) a balloon
27. 27.⚡ Why does the rubbed comb pull the paper bits? (a) it is a magnet (b) it is sticky (c) it has static charge (d) it is hot
28. 28.⚡ Which of these jumps to a charged comb? (a) a heavy book (b) a pebble (c) thermocol bits (d) a brick
29. 29.🧺 Which of these is not needed for the static comb? (a) a balloon (b) a plastic comb (c) tiny paper bits (d) a battery cell
30. 30.🧺 Which of these is not needed for the static comb? (a) a plastic comb (b) a balloon (c) dry hair (d) a mirror
31. 31.🧺 Do we need yeast for the static comb? (a) needed (b) not needed
32. 32.True or false: a pebble does not move to a charged comb. (a) False (b) True
33. 33.True or false: a steel spoon jumps to a charged comb. (a) False (b) True
34. 34.⚡ A rubbed comb is held near dry hair. What happens? (a) does not move (b) jumps to the comb
35. 35.True or false: tiny paper bits is not needed for the static comb. (a) True (b) False
36. 36.🔮 Predict: a charged comb is held near a thin stream of tap water. What happens? (a) the water stops (b) the water freezes (c) the stream bends (d) nothing at all
37. 37.🧺 Do we need vinegar for the static comb? (a) needed (b) not needed
38. 38.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a plastic comb (b) a balloon (c) dry hair (d) a battery cell
39. 39.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: the same comb is the one thing we change. (a) True (b) False
40. 40.⚡ A rubbed comb is held near a heavy book. What happens? (a) jumps to the comb (b) does not move

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