Static Electricity Experiment Worksheet

Science experiments lesson 21: Static electricity: comb and paper bits · Set 439 · 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 brick does not move to a charged comb. (a) False (b) True
2. 2.🧺 Do we need yeast for the static comb? (a) needed (b) not needed
3. 3.🧺 Which of these is needed for the static comb? (a) a mirror (b) a magnet (c) turmeric powder (d) a balloon
4. 4.⚖️ 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) True (b) False
5. 5.⚡ Why does the comb trick work best on a dry day? (a) dry days are noisy (b) water adds charge (c) damp air leaks charge (d) wet hair is magnetic
6. 6.⚖️ 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
7. 7.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a plastic comb (b) a mirror (c) tiny paper bits (d) a balloon
8. 8.⚡ Which of these does not move to a charged comb? (a) thermocol bits (b) dry hair (c) tiny paper bits (d) a pebble
9. 9.⚖️ 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) the same comb
10. 10.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a balloon (b) tiny paper bits (c) a battery cell (d) dry hair
11. 11.🔍 Which is the odd one out? (a) a thin water stream (b) a heavy book (c) tiny paper bits (d) thermocol bits
12. 12.⚡ Which of these jumps to a charged comb? (a) a brick (b) dry hair (c) a pebble (d) a steel spoon
13. 13.True or false: a mirror is not needed for the static comb. (a) False (b) True
14. 14.True or false: dry hair does not move to a charged comb. (a) False (b) True
15. 15.True or false: a balloon is not needed for the static comb. (a) False (b) True
16. 16.🧺 Do we need a magnet for the static comb? (a) not needed (b) needed
17. 17.🧺 Which of these is not needed for the static comb? (a) a plastic comb (b) a battery cell (c) a balloon (d) tiny paper bits
18. 18.🔮 Predict: you rub a balloon on dry hair and hold it on a wall. What happens? (a) it falls straight down (b) it turns into water (c) it bursts at once (d) it sticks for a while
19. 19.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “number of rubs”? (a) we keep it the same (b) we change it (c) we measure it
20. 20.⚖️ 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) False (b) True
21. 21.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a magnet (b) tiny paper bits (c) dry hair (d) a balloon
22. 22.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) yeast (b) dry hair (c) tiny paper bits (d) a balloon
23. 23.True or false: a brick jumps to a charged comb. (a) False (b) True
24. 24.🧺 Which of these is needed for the static comb? (a) a battery cell (b) a magnet (c) dry hair (d) a mirror
25. 25.⚡ 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
26. 26.🛟 There is lightning outside. Where is it safest to be? (a) indoors (b) in an open field (c) under a tall tree (d) on a rooftop
27. 27.⚡ A rubbed comb is held near puffed rice. What happens? (a) jumps to the comb (b) does not move
28. 28.🔮 Predict: you wet the comb before trying again. What happens? (a) it works better (b) it hardly works (c) it lights up (d) it becomes a magnet
29. 29.🧺 Do we need dry hair for the static comb? (a) needed (b) not needed
30. 30.⚡ A rubbed comb is held near tiny paper bits. What happens? (a) does not move (b) jumps to the comb
31. 31.⚡ Which of these jumps to a charged comb? (a) a heavy book (b) a brick (c) a steel spoon (d) thermocol bits
32. 32.⚖️ 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
33. 33.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) dry hair (b) turmeric powder (c) a plastic comb (d) a balloon
34. 34.🧺 Do we need a battery cell for the static comb? (a) not needed (b) needed
35. 35.True or false: a pebble jumps to a charged comb. (a) False (b) True
36. 36.⚖️ 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) paper bits picked up (c) distance to the paper (d) the paper bit size
37. 37.🔍 Which is the odd one out? (a) dry hair (b) a pebble (c) a brick (d) a steel spoon
38. 38.True or false: a battery cell is needed for the static comb. (a) True (b) False
39. 39.🔍 Which is the odd one out? (a) puffed rice (b) a pebble (c) a thin water stream (d) tiny paper bits
40. 40.⚡ A rubbed comb is held near a heavy book. What happens? (a) does not move (b) jumps to the comb

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