Static Electricity Experiment Worksheet

Science experiments lesson 21: Static electricity: comb and paper bits · Set 786 · 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.🧺 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) a balloon
2. 2.⚡ Which of these jumps to a charged comb? (a) a heavy book (b) a brick (c) a steel spoon (d) tiny paper bits
3. 3.⚡ A rubbed comb is held near thermocol bits. What happens? (a) does not move (b) jumps to the comb
4. 4.🔍 Which is the odd one out? (a) tiny paper bits (b) dry hair (c) a thin water stream (d) a steel spoon
5. 5.⚡ Which of these does not move to a charged comb? (a) thermocol bits (b) dry hair (c) puffed rice (d) a steel spoon
6. 6.⚡ Which of these does not move to a charged comb? (a) dry hair (b) thermocol bits (c) tiny paper bits (d) a heavy book
7. 7.🧺 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) vinegar
8. 8.⚖️ 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) the same hair (c) number of rubs (d) the paper bit size
9. 9.True or false: tiny paper bits does not move to a charged comb. (a) True (b) False
10. 10.🔍 Which is the odd one out? (a) a pebble (b) a brick (c) a steel spoon (d) a thin water stream
11. 11.⚖️ 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
12. 12.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “the same hair”? (a) we measure it (b) we change it (c) we keep it the same
13. 13.🛟 There is lightning outside. Where is it safest to be? (a) in an open field (b) indoors (c) on a rooftop (d) under a tall tree
14. 14.🔍 Which is the odd one out? (a) a thin water stream (b) dry hair (c) tiny paper bits (d) a pebble
15. 15.🧺 Do we need a mirror for the static comb? (a) not needed (b) needed
16. 16.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: paper bits picked up is what we measure. (a) True (b) False
17. 17.🧺 Which of these is not needed for the static comb? (a) dry hair (b) a balloon (c) a mirror (d) a plastic comb
18. 18.⚖️ 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) distance to the paper
19. 19.⚖️ 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) the same hair (c) paper bits picked up
20. 20.⚡ A rubbed comb is held near dry hair. What happens? (a) does not move (b) jumps to the comb
21. 21.⚡ Which of these jumps to a charged comb? (a) a brick (b) a heavy book (c) a thin water stream (d) a pebble
22. 22.True or false: a heavy book jumps to a charged comb. (a) False (b) True
23. 23.True or false: a plastic comb is not needed for the static comb. (a) False (b) True
24. 24.⚖️ 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
25. 25.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a battery cell (b) dry hair (c) a plastic comb (d) a balloon
26. 26.True or false: a magnet is not needed for the static comb. (a) False (b) True
27. 27.🔮 Predict: a charged comb is held near a thin stream of tap water. What happens? (a) the water stops (b) nothing at all (c) the stream bends (d) the water freezes
28. 28.⚡ A rubbed comb is held near a steel spoon. What happens? (a) jumps to the comb (b) does not move
29. 29.⚖️ 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
30. 30.🧺 Do we need vinegar for the static comb? (a) not needed (b) needed
31. 31.True or false: vinegar is not needed for the static comb. (a) True (b) False
32. 32.🔮 Predict: you wet the comb before trying again. What happens? (a) it becomes a magnet (b) it works better (c) it hardly works (d) it lights up
33. 33.🧺 Which of these is needed for the static comb? (a) a battery cell (b) a mirror (c) a magnet (d) a plastic comb
34. 34.⚡ Which of these jumps to a charged comb? (a) thermocol bits (b) a brick (c) a steel spoon (d) a pebble
35. 35.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a plastic comb (b) yeast (c) a balloon (d) tiny paper bits
36. 36.🧺 Do we need a magnet for the static comb? (a) needed (b) not needed
37. 37.⚡ A rubbed comb is held near tiny paper bits. What happens? (a) jumps to the comb (b) does not move
38. 38.⚡ Why does the rubbed comb pull the paper bits? (a) it has static charge (b) it is sticky (c) it is a magnet (d) it is hot
39. 39.🧺 Which of these is needed for the static comb? (a) dry hair (b) yeast (c) a magnet (d) vinegar
40. 40.True or false: yeast is not needed for the static comb. (a) True (b) False

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