Static Electricity Experiment Worksheet

Science experiments lesson 21: Static electricity: comb and paper bits · Set 379 · 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) not needed (b) needed
2. 2.⚡ Which of these does not move to a charged comb? (a) puffed rice (b) a pebble (c) tiny paper bits (d) a thin water stream
3. 3.⚖️ 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 paper bit size (c) the same comb (d) the same hair
4. 4.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: number of rubs is kept the same. (a) False (b) True
5. 5.⚡ A rubbed comb is held near thermocol bits. What happens? (a) jumps to the comb (b) does not move
6. 6.🧺 Do we need tiny paper bits for the static comb? (a) not needed (b) needed
7. 7.⚖️ 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) True (b) False
8. 8.🔍 Which is the odd one out? (a) a steel spoon (b) a brick (c) puffed rice (d) a heavy book
9. 9.True or false: thermocol bits does not move to a charged comb. (a) False (b) True
10. 10.🧺 Do we need vinegar for the static comb? (a) needed (b) not needed
11. 11.🧺 Do we need dry hair for the static comb? (a) needed (b) not needed
12. 12.True or false: a brick does not move to a charged comb. (a) False (b) True
13. 13.True or false: a balloon is not needed for the static comb. (a) False (b) True
14. 14.True or false: a battery cell is not needed for the static comb. (a) True (b) False
15. 15.⚖️ 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 measure it (c) we keep it the same
16. 16.⚡ You comb dry hair and hold the comb near tiny paper bits. What happens? (a) the bits jump to it (b) they turn blue (c) nothing happens (d) they turn wet
17. 17.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: the same hair is kept the same. (a) True (b) False
18. 18.🔮 Predict: a charged comb is held near a thin stream of tap water. What happens? (a) nothing at all (b) the stream bends (c) the water stops (d) the water freezes
19. 19.True or false: a thin water stream jumps to a charged comb. (a) False (b) True
20. 20.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a balloon (b) a plastic comb (c) dry hair (d) a battery cell
21. 21.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: number of rubs is the one thing we change. (a) False (b) True
22. 22.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “distance to the paper”? (a) we measure it (b) we change it (c) we keep it the same
23. 23.🔍 Which is the odd one out? (a) a heavy book (b) dry hair (c) a brick (d) a steel spoon
24. 24.⚡ A rubbed comb is held near a heavy book. What happens? (a) jumps to the comb (b) does not move
25. 25.🔍 Which is the odd one out? (a) a steel spoon (b) thermocol bits (c) tiny paper bits (d) dry hair
26. 26.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “the paper bit size”? (a) we keep it the same (b) we change it (c) we measure it
27. 27.⚡ Which of these jumps to a charged comb? (a) a pebble (b) dry hair (c) a brick (d) a heavy book
28. 28.⚡ A rubbed comb is held near dry hair. What happens? (a) jumps to the comb (b) does not move
29. 29.⚡ A rubbed comb is held near a pebble. What happens? (a) does not move (b) jumps to the comb
30. 30.🧺 Do we need turmeric powder for the static comb? (a) not needed (b) needed
31. 31.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: the paper bit size is what we measure. (a) True (b) False
32. 32.⚡ A rubbed comb is held near tiny paper bits. What happens? (a) does not move (b) jumps to the comb
33. 33.🔮 Predict: you rub a balloon on dry hair and hold it on a wall. What happens? (a) it bursts at once (b) it falls straight down (c) it turns into water (d) it sticks for a while
34. 34.True or false: turmeric powder is needed for the static comb. (a) True (b) False
35. 35.⚖️ 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 keep it the same (c) we measure it
36. 36.⚖️ 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 hair
37. 37.🧺 Do we need a magnet for the static comb? (a) not needed (b) needed
38. 38.True or false: yeast is needed for the static comb. (a) True (b) False
39. 39.True or false: a heavy book jumps to a charged comb. (a) True (b) False
40. 40.🛟 There is lightning outside. Where is it safest to be? (a) on a rooftop (b) under a tall tree (c) in an open field (d) indoors

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