Static Electricity Experiment Worksheet

Science experiments lesson 21: Static electricity: comb and paper bits · Set 729 · 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.⚡ A rubbed comb is held near a thin water stream. What happens? (a) jumps to the comb (b) does not move
2. 2.🛟 Static from a comb is safe. Which electricity must children never play with? (a) a rubbed plastic comb (b) paper bits on a comb (c) a rubbed balloon (d) plug points at home
3. 3.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) tiny paper bits (b) a battery cell (c) a plastic comb (d) a balloon
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 change it (b) we measure it (c) we keep it the same
5. 5.🧺 Which of these is needed for the static comb? (a) a magnet (b) a mirror (c) yeast (d) tiny paper bits
6. 6.True or false: puffed rice jumps to a charged comb. (a) False (b) True
7. 7.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) tiny paper bits (b) dry hair (c) a balloon (d) a mirror
8. 8.⚖️ 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) paper bits picked up (c) the paper bit size (d) number of rubs
9. 9.True or false: yeast is needed for the static comb. (a) True (b) False
10. 10.True or false: tiny paper bits jumps to a charged comb. (a) False (b) True
11. 11.🧺 Which of these is needed for the static comb? (a) dry hair (b) a magnet (c) turmeric powder (d) a battery cell
12. 12.True or false: tiny paper bits does not move to a charged comb. (a) False (b) True
13. 13.🔍 Which is the odd one out? (a) a thin water stream (b) puffed rice (c) thermocol bits (d) a steel spoon
14. 14.🧺 Which of these is not needed for the static comb? (a) dry hair (b) tiny paper bits (c) a plastic comb (d) a mirror
15. 15.🔍 Which is the odd one out? (a) a brick (b) a pebble (c) thermocol bits (d) a steel spoon
16. 16.🔮 Predict: you wet the comb before trying again. What happens? (a) it hardly works (b) it works better (c) it lights up (d) it becomes a magnet
17. 17.🛟 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
18. 18.⚖️ 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) True (b) False
19. 19.True or false: a steel spoon does not move to a charged comb. (a) True (b) False
20. 20.True or false: tiny paper bits is not needed for the static comb. (a) True (b) False
21. 21.🧺 Which of these is not needed for the static comb? (a) a balloon (b) tiny paper bits (c) vinegar (d) dry hair
22. 22.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a magnet (b) a balloon (c) tiny paper bits (d) a plastic comb
23. 23.⚡ A rubbed comb is held near a brick. What happens? (a) jumps to the comb (b) does not move
24. 24.⚡ Which of these does not move to a charged comb? (a) a thin water stream (b) thermocol bits (c) tiny paper bits (d) a heavy book
25. 25.🧺 Do we need a mirror for the static comb? (a) needed (b) not needed
26. 26.📘 Rubbing moves tiny charges. What do we call the charge that builds up? (a) sunlight (b) gravity (c) magnetism (d) static electricity
27. 27.🧺 Do we need a balloon for the static comb? (a) not needed (b) needed
28. 28.🔍 Which is the odd one out? (a) a thin water stream (b) puffed rice (c) thermocol bits (d) a pebble
29. 29.⚖️ 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
30. 30.⚡ Which of these does not move to a charged comb? (a) a thin water stream (b) a steel spoon (c) thermocol bits (d) dry hair
31. 31.⚖️ 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
32. 32.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “number of rubs”? (a) we change it (b) we measure it (c) we keep it the same
33. 33.⚡ Which of these jumps to a charged comb? (a) a pebble (b) a heavy book (c) tiny paper bits (d) a brick
34. 34.⚡ Why does the comb trick work best on a dry day? (a) damp air leaks charge (b) wet hair is magnetic (c) dry days are noisy (d) water adds charge
35. 35.🧺 Do we need yeast for the static comb? (a) needed (b) not needed
36. 36.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: the same comb is what we measure. (a) False (b) True
37. 37.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a plastic comb (b) turmeric powder (c) a balloon (d) tiny paper bits
38. 38.⚡ Which of these does not move to a charged comb? (a) thermocol bits (b) puffed rice (c) tiny paper bits (d) a brick
39. 39.⚖️ 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
40. 40.⚡ A rubbed comb is held near a steel spoon. What happens? (a) jumps to the comb (b) does not move

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