Static Electricity Experiment Worksheet

Science experiments lesson 21: Static electricity: comb and paper bits · Set 793 · 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: a balloon is not needed for the static comb. (a) True (b) False
2. 2.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: number of rubs is what we measure. (a) True (b) False
3. 3.⚖️ 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) True (b) False
4. 4.⚖️ 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) number of rubs
5. 5.🧺 Do we need a magnet for the static comb? (a) not needed (b) needed
6. 6.⚖️ 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
7. 7.⚡ A rubbed comb is held near tiny paper bits. What happens? (a) does not move (b) jumps to the comb
8. 8.🛟 There is lightning outside. Where is it safest to be? (a) under a tall tree (b) in an open field (c) on a rooftop (d) indoors
9. 9.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) tiny paper bits (b) a plastic comb (c) a magnet (d) dry hair
10. 10.🧺 Which of these is needed for the static comb? (a) a plastic comb (b) a magnet (c) vinegar (d) a battery cell
11. 11.True or false: vinegar is needed for the static comb. (a) False (b) True
12. 12.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “the paper bit size”? (a) we measure it (b) we keep it the same (c) we change it
13. 13.⚡ A rubbed comb is held near a brick. What happens? (a) does not move (b) jumps to the comb
14. 14.⚡ Which of these does not move to a charged comb? (a) thermocol bits (b) dry hair (c) tiny paper bits (d) a heavy book
15. 15.🧺 Do we need yeast for the static comb? (a) not needed (b) needed
16. 16.⚖️ 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
17. 17.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “number of rubs”? (a) we keep it the same (b) we change it (c) we measure it
18. 18.⚡ Which of these does not move to a charged comb? (a) thermocol bits (b) a pebble (c) a thin water stream (d) puffed rice
19. 19.🧺 Do we need a mirror for the static comb? (a) needed (b) not needed
20. 20.🧺 Which of these is needed for the static comb? (a) yeast (b) a balloon (c) a magnet (d) a mirror
21. 21.⚡ A rubbed comb is held near dry hair. What happens? (a) does not move (b) jumps to the comb
22. 22.🔍 Which is the odd one out? (a) tiny paper bits (b) a thin water stream (c) thermocol bits (d) a steel spoon
23. 23.True or false: a thin water stream does not move to a charged comb. (a) False (b) True
24. 24.⚡ Which of these jumps to a charged comb? (a) a brick (b) a heavy book (c) a thin water stream (d) a pebble
25. 25.🔮 Predict: you wet the comb before trying again. What happens? (a) it becomes a magnet (b) it works better (c) it hardly works (d) it lights up
26. 26.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a plastic comb (b) vinegar (c) dry hair (d) tiny paper bits
27. 27.🛟 Static from a comb is safe. Which electricity must children never play with? (a) paper bits on a comb (b) a rubbed plastic comb (c) plug points at home (d) a rubbed balloon
28. 28.⚡ You comb dry hair and hold the comb near tiny paper bits. What happens? (a) they turn wet (b) they turn blue (c) nothing happens (d) the bits jump to it
29. 29.True or false: a brick does not move to a charged comb. (a) True (b) False
30. 30.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a plastic comb (b) dry hair (c) turmeric powder (d) a balloon
31. 31.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a balloon (b) tiny paper bits (c) dry hair (d) a mirror
32. 32.⚡ A rubbed comb is held near a steel spoon. What happens? (a) does not move (b) jumps to the comb
33. 33.⚡ A rubbed comb is held near puffed rice. What happens? (a) does not move (b) jumps to the comb
34. 34.True or false: tiny paper bits is not needed for the static comb. (a) False (b) True
35. 35.🧺 Do we need turmeric powder for the static comb? (a) not needed (b) needed
36. 36.🔍 Which is the odd one out? (a) dry hair (b) a pebble (c) puffed rice (d) thermocol bits
37. 37.🔮 Predict: you rub a balloon on dry hair and hold it on a wall. What happens? (a) it turns into water (b) it falls straight down (c) it bursts at once (d) it sticks for a while
38. 38.🧺 Which of these is needed for the static comb? (a) a mirror (b) tiny paper bits (c) turmeric powder (d) a magnet
39. 39.⚖️ 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
40. 40.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a plastic comb (b) yeast (c) tiny paper bits (d) dry hair

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