Static Electricity Experiment Worksheet

Science experiments lesson 21: Static electricity: comb and paper bits · Set 544 · 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.🧺 Do we need yeast for the static comb? (a) needed (b) not needed
2. 2.⚖️ 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) paper bits picked up (d) the same hair
3. 3.⚡ Which of these jumps to a charged comb? (a) a brick (b) a steel spoon (c) a pebble (d) tiny paper bits
4. 4.🔮 Predict: a charged comb is held near a thin stream of tap water. What happens? (a) the stream bends (b) the water stops (c) the water freezes (d) nothing at all
5. 5.True or false: thermocol bits jumps to a charged comb. (a) True (b) False
6. 6.⚡ Which of these jumps to a charged comb? (a) a heavy book (b) a steel spoon (c) a thin water stream (d) a brick
7. 7.True or false: a steel spoon jumps to a charged comb. (a) False (b) True
8. 8.⚡ A rubbed comb is held near a thin water stream. What happens? (a) does not move (b) jumps to the comb
9. 9.🧺 Do we need tiny paper bits for the static comb? (a) needed (b) not needed
10. 10.🔍 Which is the odd one out? (a) a brick (b) a steel spoon (c) a thin water stream (d) a heavy book
11. 11.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) tiny paper bits (b) dry hair (c) a plastic comb (d) a mirror
12. 12.True or false: a thin water stream does not move to a charged comb. (a) False (b) True
13. 13.True or false: tiny paper bits does not move to a charged comb. (a) False (b) True
14. 14.⚡ You comb dry hair and hold the comb near tiny paper bits. What happens? (a) nothing happens (b) they turn wet (c) they turn blue (d) the bits jump to it
15. 15.⚡ A rubbed comb is held near thermocol bits. What happens? (a) jumps to the comb (b) does not move
16. 16.🧺 Which of these is not needed for the static comb? (a) dry hair (b) tiny paper bits (c) a battery cell (d) a plastic comb
17. 17.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) tiny paper bits (b) dry hair (c) a magnet (d) a plastic comb
18. 18.⚡ Why does the comb trick work best on a dry day? (a) wet hair is magnetic (b) water adds charge (c) damp air leaks charge (d) dry days are noisy
19. 19.⚡ A rubbed comb is held near a heavy book. What happens? (a) jumps to the comb (b) does not move
20. 20.⚡ Which of these jumps to a charged comb? (a) a brick (b) a pebble (c) a heavy book (d) thermocol bits
21. 21.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) dry hair (b) a battery cell (c) a plastic comb (d) a balloon
22. 22.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “the same comb”? (a) we change it (b) we measure it (c) we keep it the same
23. 23.⚡ Why does the rubbed comb pull the paper bits? (a) it is hot (b) it is sticky (c) it has static charge (d) it is a magnet
24. 24.⚖️ 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
25. 25.🛟 There is lightning outside. Where is it safest to be? (a) in an open field (b) under a tall tree (c) indoors (d) on a rooftop
26. 26.🔮 Predict: you wet the comb before trying again. What happens? (a) it works better (b) it lights up (c) it becomes a magnet (d) it hardly works
27. 27.True or false: yeast is needed for the static comb. (a) False (b) True
28. 28.⚖️ 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 keep it the same (c) we measure it
29. 29.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: number of rubs is what we measure. (a) True (b) False
30. 30.🧺 Do we need a mirror for the static comb? (a) needed (b) not needed
31. 31.⚖️ 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) False (b) True
32. 32.True or false: a pebble does not move to a charged comb. (a) False (b) True
33. 33.True or false: vinegar is needed for the static comb. (a) True (b) False
34. 34.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? Which of these is the one thing we change? (a) number of rubs (b) the same comb (c) distance to the paper (d) the same hair
35. 35.⚡ A rubbed comb is held near puffed rice. What happens? (a) does not move (b) jumps to the comb
36. 36.⚡ Which of these does not move to a charged comb? (a) dry hair (b) tiny paper bits (c) thermocol bits (d) a pebble
37. 37.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) yeast (b) a plastic comb (c) a balloon (d) dry hair
38. 38.True or false: a mirror is not needed for the static comb. (a) False (b) True
39. 39.⚡ Which of these jumps to a charged comb? (a) dry hair (b) a steel spoon (c) a heavy book (d) a brick
40. 40.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) turmeric powder (b) dry hair (c) a plastic comb (d) tiny paper bits

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