Static Electricity Experiment Worksheet

Science experiments lesson 21: Static electricity: comb and paper bits · Set 424 · 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.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) dry hair (b) a mirror (c) a balloon (d) a plastic comb
2. 2.🛟 Static from a comb is safe. Which electricity must children never play with? (a) plug points at home (b) a rubbed balloon (c) a rubbed plastic comb (d) paper bits on a comb
3. 3.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: the same hair is what we measure. (a) False (b) True
4. 4.🔮 Predict: you wet the comb before trying again. What happens? (a) it becomes a magnet (b) it works better (c) it lights up (d) it hardly works
5. 5.⚡ Which of these jumps to a charged comb? (a) a pebble (b) tiny paper bits (c) a steel spoon (d) a brick
6. 6.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: the same comb is kept the same. (a) False (b) True
7. 7.🛟 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
8. 8.True or false: a pebble does not move to a charged comb. (a) True (b) False
9. 9.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? Which of these is what we measure? (a) paper bits picked up (b) distance to the paper (c) the paper bit size (d) number of rubs
10. 10.⚖️ 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
11. 11.⚖️ 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
12. 12.⚡ Which of these jumps to a charged comb? (a) a brick (b) a steel spoon (c) a thin water stream (d) a heavy book
13. 13.⚡ A rubbed comb is held near thermocol bits. What happens? (a) jumps to the comb (b) does not move
14. 14.True or false: a plastic comb is not needed for the static comb. (a) False (b) True
15. 15.⚖️ 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
16. 16.🧺 Do we need turmeric powder for the static comb? (a) needed (b) not needed
17. 17.True or false: yeast is needed for the static comb. (a) False (b) True
18. 18.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? Which of these is the one thing we change? (a) paper bits picked up (b) number of rubs (c) the same comb (d) the paper bit size
19. 19.True or false: a magnet is not needed for the static comb. (a) False (b) True
20. 20.🔮 Predict: you rub a balloon on dry hair and hold it on a wall. What happens? (a) it falls straight down (b) it sticks for a while (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? What do we do with “the same comb”? (a) we keep it the same (b) we change it (c) we measure it
22. 22.⚡ 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
23. 23.⚖️ 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
24. 24.True or false: tiny paper bits is not needed for the static comb. (a) False (b) True
25. 25.True or false: a steel spoon jumps to a charged comb. (a) False (b) True
26. 26.⚡ Which of these jumps to a charged comb? (a) dry hair (b) a heavy book (c) a pebble (d) a brick
27. 27.True or false: a balloon is not needed for the static comb. (a) True (b) False
28. 28.🔍 Which is the odd one out? (a) tiny paper bits (b) a pebble (c) a thin water stream (d) thermocol bits
29. 29.True or false: a heavy book jumps to a charged comb. (a) True (b) False
30. 30.🧺 Which of these is not needed for the static comb? (a) vinegar (b) tiny paper bits (c) dry hair (d) a plastic comb
31. 31.⚖️ 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 hair
32. 32.🧺 Which of these is needed for the static comb? (a) turmeric powder (b) a balloon (c) yeast (d) a mirror
33. 33.True or false: turmeric powder is not needed for the static comb. (a) False (b) True
34. 34.⚡ Why does the rubbed comb pull the paper bits? (a) it is a magnet (b) it is sticky (c) it is hot (d) it has static charge
35. 35.⚖️ 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
36. 36.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) dry hair (b) a battery cell (c) a balloon (d) tiny paper bits
37. 37.True or false: a brick jumps to a charged comb. (a) False (b) True
38. 38.⚖️ 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
39. 39.🧺 Which of these is needed for the static comb? (a) a battery cell (b) a magnet (c) turmeric powder (d) dry hair
40. 40.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: the paper bit size is the one thing we change. (a) False (b) True

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