Static Electricity Experiment Worksheet

Science experiments lesson 21: Static electricity: comb and paper bits · Set 740 · 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.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? Which of these is what we measure? (a) the same hair (b) the paper bit size (c) paper bits picked up (d) distance to the paper
2. 2.🧺 Which of these is needed for the static comb? (a) a plastic comb (b) yeast (c) vinegar (d) a mirror
3. 3.🛟 There is lightning outside. Where is it safest to be? (a) in an open field (b) under a tall tree (c) on a rooftop (d) indoors
4. 4.True or false: a thin water stream does not move to a charged comb. (a) True (b) False
5. 5.🔍 Which is the odd one out? (a) a heavy book (b) tiny paper bits (c) a brick (d) a pebble
6. 6.True or false: a heavy book jumps to a charged comb. (a) True (b) False
7. 7.🧺 Which of these is not needed for the static comb? (a) a balloon (b) a plastic comb (c) dry hair (d) turmeric powder
8. 8.⚡ A rubbed comb is held near a pebble. What happens? (a) jumps to the comb (b) does not move
9. 9.🔮 Predict: you rub a balloon on dry hair and hold it on a wall. What happens? (a) it falls straight down (b) it bursts at once (c) it turns into water (d) it sticks for a while
10. 10.⚡ Why does the rubbed comb pull the paper bits? (a) it is a magnet (b) it has static charge (c) it is hot (d) it is sticky
11. 11.🧺 Do we need a plastic comb for the static comb? (a) not needed (b) needed
12. 12.🧺 Which of these is not needed for the static comb? (a) tiny paper bits (b) dry hair (c) a magnet (d) a balloon
13. 13.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: the paper bit size is the one thing we change. (a) True (b) False
14. 14.True or false: a heavy book does not move to a charged comb. (a) False (b) True
15. 15.True or false: tiny paper bits does not move to a charged comb. (a) False (b) True
16. 16.⚡ A rubbed comb is held near thermocol bits. What happens? (a) jumps to the comb (b) does not move
17. 17.⚡ Which of these does not move to a charged comb? (a) a steel spoon (b) tiny paper bits (c) dry hair (d) a thin water stream
18. 18.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) dry hair (b) a battery cell (c) a balloon (d) tiny paper bits
19. 19.⚡ Which of these jumps to a charged comb? (a) a pebble (b) a steel spoon (c) a heavy book (d) thermocol bits
20. 20.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “distance to the paper”? (a) we keep it the same (b) we measure it (c) we change it
21. 21.⚡ A rubbed comb is held near dry hair. What happens? (a) jumps to the comb (b) does not move
22. 22.⚖️ 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) True (b) False
23. 23.⚖️ 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 measure it (c) we keep it the same
24. 24.🧺 Do we need a magnet for the static comb? (a) needed (b) not needed
25. 25.True or false: yeast is needed for the static comb. (a) True (b) False
26. 26.🔍 Which is the odd one out? (a) a pebble (b) a brick (c) a thin water stream (d) a steel spoon
27. 27.⚖️ 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
28. 28.⚡ Which of these does not move to a charged comb? (a) puffed rice (b) tiny paper bits (c) a brick (d) thermocol bits
29. 29.🔍 Which is the odd one out? (a) a steel spoon (b) puffed rice (c) a thin water stream (d) tiny paper bits
30. 30.True or false: vinegar is needed for the static comb. (a) False (b) True
31. 31.🔍 Which is the odd one out? (a) a thin water stream (b) thermocol bits (c) puffed rice (d) a heavy book
32. 32.🧺 Which of these is not needed for the static comb? (a) tiny paper bits (b) dry hair (c) a mirror (d) a plastic comb
33. 33.🧺 Which of these is needed for the static comb? (a) a magnet (b) tiny paper bits (c) a mirror (d) yeast
34. 34.🔍 Which is the odd one out? (a) tiny paper bits (b) dry hair (c) a pebble (d) puffed rice
35. 35.🧺 Which of these is needed for the static comb? (a) a mirror (b) yeast (c) a balloon (d) vinegar
36. 36.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “the same hair”? (a) we keep it the same (b) we change it (c) we measure it
37. 37.⚖️ 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 keep it the same (c) we change it
38. 38.🔍 Which is the odd one out? (a) a brick (b) tiny paper bits (c) thermocol bits (d) a thin water stream
39. 39.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? Which of these is the one thing we change? (a) the same comb (b) distance to the paper (c) number of rubs (d) the same hair
40. 40.True or false: yeast is not needed for the static comb. (a) True (b) False

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