Static Electricity Experiment Worksheet

Science experiments lesson 21: Static electricity: comb and paper bits · Set 513 · 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 plastic comb is not needed for the static comb. (a) False (b) True
2. 2.⚡ A rubbed comb is held near a brick. What happens? (a) does not move (b) jumps to the comb
3. 3.True or false: puffed rice does not move to a charged comb. (a) True (b) False
4. 4.True or false: dry hair jumps to a charged comb. (a) False (b) True
5. 5.⚖️ 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
6. 6.🧺 Which of these is not needed for the static comb? (a) a plastic comb (b) a balloon (c) tiny paper bits (d) a magnet
7. 7.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a balloon (b) a plastic comb (c) yeast (d) dry hair
8. 8.🧺 Which of these is not needed for the static comb? (a) a battery cell (b) dry hair (c) a balloon (d) a plastic comb
9. 9.🛟 There is lightning outside. Where is it safest to be? (a) indoors (b) on a rooftop (c) under a tall tree (d) in an open field
10. 10.⚡ Why does the comb trick work best on a dry day? (a) dry days are noisy (b) wet hair is magnetic (c) water adds charge (d) damp air leaks charge
11. 11.True or false: a thin water stream does not move to a charged comb. (a) True (b) False
12. 12.⚡ A rubbed comb is held near thermocol bits. What happens? (a) jumps to the comb (b) does not move
13. 13.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) dry hair (b) a plastic comb (c) a magnet (d) tiny paper bits
14. 14.🛟 Static from a comb is safe. Which electricity must children never play with? (a) a rubbed plastic comb (b) a rubbed balloon (c) paper bits on a comb (d) plug points at home
15. 15.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: the same hair is kept the same. (a) False (b) True
16. 16.True or false: a balloon is not needed for the static comb. (a) False (b) True
17. 17.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) dry hair (b) a balloon (c) a battery cell (d) tiny paper bits
18. 18.⚡ Which of these does not move to a charged comb? (a) dry hair (b) puffed rice (c) a steel spoon (d) tiny paper bits
19. 19.📘 Rubbing moves tiny charges. What do we call the charge that builds up? (a) sunlight (b) gravity (c) static electricity (d) magnetism
20. 20.🧺 Do we need tiny paper bits for the static comb? (a) needed (b) not needed
21. 21.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: the same comb is the one thing we change. (a) True (b) False
22. 22.🧺 Do we need vinegar for the static comb? (a) needed (b) not needed
23. 23.True or false: a mirror is not needed for the static comb. (a) True (b) False
24. 24.⚡ A rubbed comb is held near a steel spoon. What happens? (a) does not move (b) jumps to the comb
25. 25.True or false: a plastic comb is needed for the static comb. (a) True (b) False
26. 26.True or false: a pebble jumps to a charged comb. (a) False (b) True
27. 27.🔮 Predict: you wet the comb before trying again. What happens? (a) it works better (b) it lights up (c) it hardly works (d) it becomes a magnet
28. 28.🔍 Which is the odd one out? (a) tiny paper bits (b) a brick (c) a steel spoon (d) a heavy book
29. 29.⚖️ 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 measure it (c) we keep it the same
30. 30.⚡ You comb dry hair and hold the comb near tiny paper bits. What happens? (a) they turn wet (b) the bits jump to it (c) they turn blue (d) nothing happens
31. 31.🔍 Which is the odd one out? (a) a thin water stream (b) dry hair (c) a heavy book (d) thermocol bits
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 paper bit size (b) number of rubs (c) the same comb (d) the same hair
33. 33.🧺 Do we need a balloon for the static comb? (a) not needed (b) needed
34. 34.⚖️ 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) the same hair
35. 35.True or false: a battery cell is needed for the static comb. (a) False (b) True
36. 36.🧺 Which of these is needed for the static comb? (a) yeast (b) a balloon (c) turmeric powder (d) a mirror
37. 37.⚡ A rubbed comb is held near puffed rice. What happens? (a) jumps to the comb (b) does not move
38. 38.🔮 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 turns into water (d) it bursts at once
39. 39.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: distance to the paper is the one thing we change. (a) False (b) True
40. 40.True or false: vinegar is needed for the static comb. (a) True (b) False

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