Static Electricity Experiment Worksheet

Science experiments lesson 21: Static electricity: comb and paper bits · Set 477 · 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 needed for the static comb? (a) a plastic comb (b) vinegar (c) a magnet (d) yeast
2. 2.🔮 Predict: you rub a balloon on dry hair and hold it on a wall. What happens? (a) it sticks for a while (b) it bursts at once (c) it falls straight down (d) it turns into water
3. 3.⚡ Which of these jumps to a charged comb? (a) a steel spoon (b) dry hair (c) a heavy book (d) a pebble
4. 4.⚖️ 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
5. 5.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) turmeric powder (b) a plastic comb (c) tiny paper bits (d) dry hair
6. 6.🧺 Which of these is not needed for the static comb? (a) tiny paper bits (b) yeast (c) a plastic comb (d) dry hair
7. 7.📘 Rubbing moves tiny charges. What do we call the charge that builds up? (a) magnetism (b) static electricity (c) sunlight (d) gravity
8. 8.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a balloon (b) tiny paper bits (c) a mirror (d) dry hair
9. 9.⚡ A rubbed comb is held near a heavy book. What happens? (a) does not move (b) jumps to the comb
10. 10.⚡ You comb dry hair and hold the comb near tiny paper bits. What happens? (a) they turn wet (b) nothing happens (c) the bits jump to it (d) they turn blue
11. 11.🧺 Which of these is not needed for the static comb? (a) dry hair (b) a plastic comb (c) vinegar (d) tiny paper bits
12. 12.⚖️ 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 paper bit size (c) number of rubs
13. 13.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? Which of these is what we measure? (a) the paper bit size (b) distance to the paper (c) number of rubs (d) paper bits picked up
14. 14.⚡ A rubbed comb is held near a thin water stream. What happens? (a) does not move (b) jumps to the comb
15. 15.True or false: yeast is not needed for the static comb. (a) False (b) True
16. 16.🧺 Do we need a battery cell for the static comb? (a) needed (b) not needed
17. 17.🔍 Which is the odd one out? (a) dry hair (b) tiny paper bits (c) a thin water stream (d) a steel spoon
18. 18.⚡ Which of these jumps to a charged comb? (a) tiny paper bits (b) a heavy book (c) a pebble (d) a brick
19. 19.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “the same comb”? (a) we measure it (b) we keep it the same (c) we change it
20. 20.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: distance to the paper is what we measure. (a) False (b) True
21. 21.🛟 There is lightning outside. Where is it safest to be? (a) on a rooftop (b) under a tall tree (c) indoors (d) in an open field
22. 22.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a plastic comb (b) yeast (c) tiny paper bits (d) dry hair
23. 23.🛟 Static from a comb is safe. Which electricity must children never play with? (a) a rubbed plastic comb (b) plug points at home (c) paper bits on a comb (d) a rubbed balloon
24. 24.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? Which of these is the one thing we change? (a) distance to the paper (b) number of rubs (c) the paper bit size (d) paper bits picked up
25. 25.🧺 Do we need tiny paper bits for the static comb? (a) needed (b) not needed
26. 26.🔍 Which is the odd one out? (a) tiny paper bits (b) dry hair (c) a pebble (d) thermocol bits
27. 27.⚖️ 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) True (b) False
28. 28.True or false: a mirror is not needed for the static comb. (a) False (b) True
29. 29.🧺 Do we need a magnet for the static comb? (a) not needed (b) needed
30. 30.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) tiny paper bits (b) vinegar (c) a plastic comb (d) a balloon
31. 31.⚡ 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
32. 32.⚡ A rubbed comb is held near puffed rice. What happens? (a) jumps to the comb (b) does not move
33. 33.🧺 Do we need a balloon for the static comb? (a) not needed (b) needed
34. 34.⚡ Why does the rubbed comb pull the paper bits? (a) it is hot (b) it is a magnet (c) it has static charge (d) it is sticky
35. 35.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: paper bits picked up is kept the same. (a) True (b) False
36. 36.⚖️ 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 keep it the same (c) we measure it
37. 37.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: the same hair is what we measure. (a) False (b) True
38. 38.True or false: a heavy book does not move to a charged comb. (a) False (b) True
39. 39.⚡ A rubbed comb is held near tiny paper bits. What happens? (a) does not move (b) jumps to the comb
40. 40.True or false: dry hair jumps to a charged comb. (a) False (b) True

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