Static Electricity Experiment Worksheet

Science experiments lesson 21: Static electricity: comb and paper bits · Set 244 · 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) number of rubs (b) paper bits picked up (c) distance to the paper
2. 2.🛟 There is lightning outside. Where is it safest to be? (a) in an open field (b) indoors (c) under a tall tree (d) on a rooftop
3. 3.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a mirror (b) tiny paper bits (c) dry hair (d) a balloon
4. 4.True or false: tiny paper bits is not needed for the static comb. (a) False (b) True
5. 5.True or false: turmeric powder is not needed for the static comb. (a) False (b) True
6. 6.True or false: tiny paper bits does not move to a charged comb. (a) False (b) True
7. 7.⚖️ 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 change it (c) we measure it
8. 8.⚖️ 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) the same comb (c) paper bits picked up (d) the same hair
9. 9.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a balloon (b) dry hair (c) yeast (d) a plastic comb
10. 10.🔮 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 bursts at once (d) it turns into water
11. 11.⚡ Why does the rubbed comb pull the paper bits? (a) it is a magnet (b) it is hot (c) it has static charge (d) it is sticky
12. 12.⚖️ 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 keep it the same (c) we change it
13. 13.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: paper bits picked up is kept the same. (a) True (b) False
14. 14.⚖️ 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 paper bit size (c) number of rubs
15. 15.True or false: vinegar is needed for the static comb. (a) True (b) False
16. 16.🧺 Which of these is needed for the static comb? (a) turmeric powder (b) dry hair (c) yeast (d) a battery cell
17. 17.🧺 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) a plastic comb
18. 18.⚖️ 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 same comb
19. 19.🧺 Which of these is not needed for the static comb? (a) tiny paper bits (b) dry hair (c) turmeric powder (d) a plastic comb
20. 20.⚡ A rubbed comb is held near dry hair. What happens? (a) jumps to the comb (b) does not move
21. 21.🧺 Do we need a plastic comb for the static comb? (a) needed (b) not needed
22. 22.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: number of rubs is kept the same. (a) True (b) False
23. 23.True or false: a pebble does not move to a charged comb. (a) True (b) False
24. 24.True or false: turmeric powder is needed for the static comb. (a) False (b) True
25. 25.🔍 Which is the odd one out? (a) a brick (b) a thin water stream (c) a heavy book (d) a pebble
26. 26.True or false: a mirror is not needed for the static comb. (a) False (b) True
27. 27.🔮 Predict: you wet the comb before trying again. What happens? (a) it hardly works (b) it becomes a magnet (c) it works better (d) it lights up
28. 28.🛟 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
29. 29.🧺 Which of these is not needed for the static comb? (a) a plastic comb (b) a battery cell (c) dry hair (d) a balloon
30. 30.⚡ A rubbed comb is held near a pebble. What happens? (a) jumps to the comb (b) does not move
31. 31.🔍 Which is the odd one out? (a) a pebble (b) thermocol bits (c) a thin water stream (d) puffed rice
32. 32.True or false: dry hair is not needed for the static comb. (a) True (b) False
33. 33.🧺 Do we need dry hair for the static comb? (a) needed (b) not needed
34. 34.True or false: dry hair jumps to a charged comb. (a) False (b) True
35. 35.True or false: a mirror is needed for the static comb. (a) True (b) False
36. 36.True or false: a plastic comb is not needed for the static comb. (a) True (b) False
37. 37.🧺 Do we need a mirror for the static comb? (a) needed (b) not needed
38. 38.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: the same hair is the one thing we change. (a) True (b) False
39. 39.⚡ A rubbed comb is held near puffed rice. What happens? (a) jumps to the comb (b) does not move
40. 40.🔮 Predict: a charged comb is held near a thin stream of tap water. What happens? (a) the stream bends (b) the water freezes (c) nothing at all (d) the water stops

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