Static Electricity Experiment Worksheet

Science experiments lesson 21: Static electricity: comb and paper bits · Set 898 · 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 pebble does not move to a charged comb. (a) True (b) False
2. 2.⚡ Why does the comb trick work best on a dry day? (a) wet hair is magnetic (b) dry days are noisy (c) water adds charge (d) damp air leaks charge
3. 3.True or false: a brick jumps to a charged comb. (a) False (b) True
4. 4.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “paper bits picked up”? (a) we measure it (b) we keep it the same (c) we change it
5. 5.🔮 Predict: you rub a balloon on dry hair and hold it on a wall. What happens? (a) it bursts at once (b) it falls straight down (c) it turns into water (d) it sticks for a while
6. 6.⚡ A rubbed comb is held near a thin water stream. What happens? (a) jumps to the comb (b) does not move
7. 7.🧺 Which of these is needed for the static comb? (a) a magnet (b) a mirror (c) yeast (d) a plastic comb
8. 8.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: paper bits picked up is the one thing we change. (a) True (b) False
9. 9.True or false: puffed rice does not move to a charged comb. (a) True (b) False
10. 10.🛟 There is lightning outside. Where is it safest to be? (a) indoors (b) on a rooftop (c) in an open field (d) under a tall tree
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 paper bit size (c) paper bits picked up
12. 12.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a balloon (b) dry hair (c) a plastic comb (d) turmeric powder
13. 13.⚡ A rubbed comb is held near a steel spoon. What happens? (a) jumps to the comb (b) does not move
14. 14.🧺 Which of these is needed for the static comb? (a) a magnet (b) a mirror (c) a balloon (d) yeast
15. 15.🧺 Which of these is needed for the static comb? (a) vinegar (b) dry hair (c) turmeric powder (d) yeast
16. 16.🧺 Do we need vinegar for the static comb? (a) needed (b) not needed
17. 17.🧺 Do we need tiny paper bits for the static comb? (a) needed (b) not needed
18. 18.🧺 Do we need a balloon for the static comb? (a) needed (b) not needed
19. 19.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “the same hair”? (a) we change it (b) we keep it the same (c) we measure it
20. 20.🔮 Predict: a charged comb is held near a thin stream of tap water. What happens? (a) nothing at all (b) the water stops (c) the stream bends (d) the water freezes
21. 21.🔍 Which is the odd one out? (a) a steel spoon (b) thermocol bits (c) tiny paper bits (d) a thin water stream
22. 22.🧺 Do we need a plastic comb for the static comb? (a) not needed (b) needed
23. 23.True or false: a plastic comb is not needed for the static comb. (a) False (b) True
24. 24.⚡ Which of these does not move to a charged comb? (a) a heavy book (b) dry hair (c) thermocol bits (d) a thin water stream
25. 25.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “the paper bit size”? (a) we change it (b) we keep it the same (c) we measure it
26. 26.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “distance to the paper”? (a) we measure it (b) we change it (c) we keep it the same
27. 27.⚖️ 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
28. 28.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: the same comb is kept the same. (a) True (b) False
29. 29.📘 Rubbing moves tiny charges. What do we call the charge that builds up? (a) magnetism (b) gravity (c) sunlight (d) static electricity
30. 30.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) dry hair (b) yeast (c) a balloon (d) a plastic comb
31. 31.⚡ Which of these jumps to a charged comb? (a) a steel spoon (b) a pebble (c) tiny paper bits (d) a heavy book
32. 32.⚖️ 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 comb (b) the same hair (c) number of rubs (d) the paper bit size
33. 33.True or false: tiny paper bits is not needed for the static comb. (a) True (b) False
34. 34.🧺 Do we need dry hair for the static comb? (a) needed (b) not needed
35. 35.⚡ A rubbed comb is held near a heavy book. What happens? (a) does not move (b) jumps to the comb
36. 36.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a balloon (b) a magnet (c) a plastic comb (d) tiny paper bits
37. 37.🧺 Which of these is needed for the static comb? (a) a mirror (b) a magnet (c) turmeric powder (d) tiny paper bits
38. 38.🧺 Do we need a battery cell for the static comb? (a) needed (b) not needed
39. 39.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? Which of these is what we measure? (a) number of rubs (b) paper bits picked up (c) the same hair (d) distance to the paper
40. 40.⚡ A rubbed comb is held near tiny paper bits. What happens? (a) does not move (b) jumps to the comb

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