Static Electricity Experiment Worksheet

Science experiments lesson 21: Static electricity: comb and paper bits · Set 843 · 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.🧺 Which of these is not needed for the static comb? (a) dry hair (b) a battery cell (c) a balloon (d) a plastic comb
2. 2.⚡ You comb dry hair and hold the comb near tiny paper bits. What happens? (a) they turn wet (b) the bits jump to it (c) nothing happens (d) they turn blue
3. 3.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: the same hair is what we measure. (a) True (b) False
4. 4.⚡ Why does the comb trick work best on a dry day? (a) water adds charge (b) dry days are noisy (c) wet hair is magnetic (d) damp air leaks charge
5. 5.⚡ A rubbed comb is held near tiny paper bits. What happens? (a) does not move (b) jumps to the comb
6. 6.True or false: a mirror is needed for the static comb. (a) False (b) True
7. 7.🧺 Do we need a plastic comb for the static comb? (a) needed (b) not needed
8. 8.🧺 Which of these is needed for the static comb? (a) vinegar (b) a magnet (c) a plastic comb (d) a mirror
9. 9.🔍 Which is the odd one out? (a) a brick (b) a pebble (c) a steel spoon (d) tiny paper bits
10. 10.🔍 Which is the odd one out? (a) a thin water stream (b) thermocol bits (c) tiny paper bits (d) a steel spoon
11. 11.True or false: tiny paper bits does not move to a charged comb. (a) False (b) True
12. 12.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a mirror (b) a balloon (c) dry hair (d) a plastic comb
13. 13.⚡ A rubbed comb is held near a heavy book. What happens? (a) does not move (b) jumps to the comb
14. 14.🔮 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
15. 15.🧺 Do we need vinegar for the static comb? (a) not needed (b) needed
16. 16.True or false: thermocol bits jumps to a charged comb. (a) False (b) True
17. 17.⚖️ 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 same comb
18. 18.🔍 Which is the odd one out? (a) a steel spoon (b) a pebble (c) dry hair (d) a heavy book
19. 19.🔍 Which is the odd one out? (a) a pebble (b) tiny paper bits (c) thermocol bits (d) a thin water stream
20. 20.🔮 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 sticks for a while (d) it bursts at once
21. 21.⚡ Why does the rubbed comb pull the paper bits? (a) it is hot (b) it is a magnet (c) it is sticky (d) it has static charge
22. 22.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? Which of these is what we measure? (a) distance to the paper (b) the paper bit size (c) the same hair (d) paper bits picked up
23. 23.🧺 Do we need dry hair for the static comb? (a) not needed (b) needed
24. 24.🛟 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
25. 25.True or false: vinegar is needed for the static comb. (a) True (b) False
26. 26.True or false: a balloon is not needed for the static comb. (a) True (b) False
27. 27.⚡ Which of these does not move to a charged comb? (a) a heavy book (b) tiny paper bits (c) puffed rice (d) a thin water stream
28. 28.⚖️ 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
29. 29.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) vinegar (b) dry hair (c) a plastic comb (d) a balloon
30. 30.⚖️ 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
31. 31.🧺 Which of these is needed for the static comb? (a) turmeric powder (b) dry hair (c) a magnet (d) a battery cell
32. 32.🔍 Which is the odd one out? (a) a brick (b) thermocol bits (c) a steel spoon (d) a pebble
33. 33.⚡ Which of these jumps to a charged comb? (a) a pebble (b) a brick (c) dry hair (d) a steel spoon
34. 34.True or false: puffed rice does not move to a charged comb. (a) False (b) True
35. 35.⚡ Which big natural spark is caused by static electricity? (a) a rainbow (b) lightning (c) the wind (d) dew
36. 36.🧺 Which of these is not needed for the static comb? (a) a plastic comb (b) tiny paper bits (c) a balloon (d) a magnet
37. 37.🛟 Static from a comb is safe. Which electricity must children never play with? (a) plug points at home (b) a rubbed balloon (c) a rubbed plastic comb (d) paper bits on a comb
38. 38.True or false: vinegar is not needed for the static comb. (a) True (b) False
39. 39.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “the same comb”? (a) we measure it (b) we change it (c) we keep it the same
40. 40.⚡ Which of these does not move to a charged comb? (a) thermocol bits (b) a brick (c) tiny paper bits (d) puffed rice

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