Static Electricity Experiment Worksheet

Science experiments lesson 21: Static electricity: comb and paper bits · Set 166 · 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.🧺 Which of these is not needed for the static comb? (a) a balloon (b) tiny paper bits (c) yeast (d) dry hair
2. 2.⚡ You comb dry hair and hold the comb near tiny paper bits. What happens? (a) they turn blue (b) nothing happens (c) the bits jump to it (d) they turn wet
3. 3.⚡ A rubbed comb is held near a thin water stream. What happens? (a) does not move (b) jumps to the comb
4. 4.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? Which of these is kept the same? (a) the same comb (b) paper bits picked up (c) number of rubs
5. 5.🧺 Which of these is needed for the static comb? (a) a magnet (b) a plastic comb (c) a mirror (d) turmeric powder
6. 6.⚡ Which of these jumps to a charged comb? (a) a heavy book (b) a pebble (c) a brick (d) thermocol bits
7. 7.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) tiny paper bits (b) dry hair (c) vinegar (d) a balloon
8. 8.⚖️ 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) False (b) True
9. 9.🛟 There is lightning outside. Where is it safest to be? (a) in an open field (b) under a tall tree (c) indoors (d) on a rooftop
10. 10.🔍 Which is the odd one out? (a) a brick (b) a steel spoon (c) a heavy book (d) thermocol bits
11. 11.🧺 Do we need a balloon for the static comb? (a) not needed (b) needed
12. 12.🔍 Which is the odd one out? (a) a thin water stream (b) puffed rice (c) tiny paper bits (d) a brick
13. 13.⚖️ 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
14. 14.True or false: a battery cell is needed for the static comb. (a) False (b) True
15. 15.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a plastic comb (b) a mirror (c) a balloon (d) tiny paper bits
16. 16.⚡ A rubbed comb is held near tiny paper bits. What happens? (a) jumps to the comb (b) does not move
17. 17.🛟 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) a rubbed balloon (d) plug points at home
18. 18.🧺 Do we need tiny paper bits for the static comb? (a) needed (b) not needed
19. 19.🧺 Do we need dry hair for the static comb? (a) not needed (b) needed
20. 20.⚡ Which of these jumps to a charged comb? (a) a pebble (b) a brick (c) a steel spoon (d) puffed rice
21. 21.🧺 Do we need a magnet for the static comb? (a) needed (b) not needed
22. 22.🧺 Do we need a plastic comb for the static comb? (a) not needed (b) needed
23. 23.True or false: dry hair is not 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: number of rubs is the one thing we change. (a) False (b) True
25. 25.⚖️ 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
26. 26.🔍 Which is the odd one out? (a) tiny paper bits (b) a heavy book (c) thermocol bits (d) dry hair
27. 27.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) tiny paper bits (b) dry hair (c) yeast (d) a plastic comb
28. 28.True or false: vinegar is not needed for the static comb. (a) False (b) True
29. 29.⚖️ 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
30. 30.🔮 Predict: you rub a balloon on dry hair and hold it on a wall. What happens? (a) it bursts at once (b) it turns into water (c) it sticks for a while (d) it falls straight down
31. 31.🧺 Which of these is not needed for the static comb? (a) turmeric powder (b) tiny paper bits (c) a balloon (d) a plastic comb
32. 32.📘 Rubbing moves tiny charges. What do we call the charge that builds up? (a) gravity (b) magnetism (c) static electricity (d) sunlight
33. 33.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: the same comb is what we measure. (a) True (b) False
34. 34.⚖️ 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
35. 35.🧺 Which of these is needed for the static comb? (a) a battery cell (b) a balloon (c) a mirror (d) vinegar
36. 36.⚖️ 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 measure it (c) we change it
37. 37.🧺 Do we need yeast for the static comb? (a) needed (b) not needed
38. 38.⚡ Why does the comb trick work best on a dry day? (a) damp air leaks charge (b) water adds charge (c) wet hair is magnetic (d) dry days are noisy
39. 39.⚖️ 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 same hair (c) number of rubs
40. 40.True or false: a steel spoon jumps to a charged comb. (a) False (b) True

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