Static Electricity Experiment Worksheet

Science experiments lesson 21: Static electricity: comb and paper bits · Set 189 · 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 plastic comb (b) tiny paper bits (c) dry hair (d) a battery cell
2. 2.⚡ Which of these does not move to a charged comb? (a) dry hair (b) puffed rice (c) a thin water stream (d) a brick
3. 3.⚡ Why does the comb trick work best on a dry day? (a) water adds charge (b) wet hair is magnetic (c) dry days are noisy (d) damp air leaks charge
4. 4.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) dry hair (b) a balloon (c) a mirror (d) a plastic comb
5. 5.🔮 Predict: you wet the comb before trying again. What happens? (a) it becomes a magnet (b) it lights up (c) it works better (d) it hardly works
6. 6.⚡ A rubbed comb is held near dry hair. What happens? (a) does not move (b) jumps to the comb
7. 7.⚡ A rubbed comb is held near a heavy book. What happens? (a) jumps to the comb (b) does not move
8. 8.🧺 Which of these is needed for the static comb? (a) a magnet (b) yeast (c) turmeric powder (d) tiny paper bits
9. 9.🧺 Which of these is not needed for the static comb? (a) dry hair (b) a plastic comb (c) vinegar (d) tiny paper bits
10. 10.🛟 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
11. 11.True or false: a thin water stream jumps to a charged comb. (a) False (b) True
12. 12.⚡ A rubbed comb is held near a brick. What happens? (a) jumps to the comb (b) does not move
13. 13.⚡ Which of these does not move to a charged comb? (a) a steel spoon (b) dry hair (c) tiny paper bits (d) thermocol bits
14. 14.⚖️ 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
15. 15.True or false: a battery cell is not needed for the static comb. (a) False (b) True
16. 16.🧺 Which of these is needed for the static comb? (a) a magnet (b) a balloon (c) vinegar (d) a battery cell
17. 17.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: number of rubs is kept the same. (a) True (b) False
18. 18.🧺 Which of these is needed for the static comb? (a) turmeric powder (b) dry hair (c) a mirror (d) yeast
19. 19.🛟 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) plug points at home (d) a rubbed balloon
20. 20.⚡ You comb dry hair and hold the comb near tiny paper bits. What happens? (a) they turn blue (b) nothing happens (c) they turn wet (d) the bits jump to it
21. 21.⚖️ 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) number of rubs (d) the same comb
22. 22.True or false: a battery cell is needed for the static comb. (a) True (b) False
23. 23.🔍 Which is the odd one out? (a) thermocol bits (b) a brick (c) a thin water stream (d) tiny paper bits
24. 24.⚡ Why does the rubbed comb pull the paper bits? (a) it is sticky (b) it is hot (c) it is a magnet (d) it has static charge
25. 25.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a plastic comb (b) a battery cell (c) a balloon (d) tiny paper bits
26. 26.🔍 Which is the odd one out? (a) a heavy book (b) dry hair (c) tiny paper bits (d) a thin water stream
27. 27.🧺 Do we need vinegar for the static comb? (a) needed (b) not needed
28. 28.🔍 Which is the odd one out? (a) a heavy book (b) a steel spoon (c) a brick (d) tiny paper bits
29. 29.True or false: a brick jumps to a charged comb. (a) True (b) False
30. 30.🔮 Predict: a charged comb is held near a thin stream of tap water. What happens? (a) the water freezes (b) nothing at all (c) the stream bends (d) the water stops
31. 31.🔍 Which is the odd one out? (a) a thin water stream (b) a brick (c) a heavy book (d) a pebble
32. 32.True or false: thermocol bits jumps to a charged comb. (a) False (b) True
33. 33.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a plastic comb (b) a magnet (c) tiny paper bits (d) dry hair
34. 34.⚖️ 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 measure it (c) we change it
35. 35.True or false: a heavy book does not move to a charged comb. (a) True (b) False
36. 36.📘 Rubbing moves tiny charges. What do we call the charge that builds up? (a) static electricity (b) magnetism (c) gravity (d) sunlight
37. 37.⚖️ 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
38. 38.⚖️ 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) the same comb (c) number of rubs (d) distance to the paper
39. 39.⚖️ 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 change it (c) we keep it the same
40. 40.🧺 Which of these is not needed for the static comb? (a) a balloon (b) dry hair (c) turmeric powder (d) a plastic comb

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