Static Electricity Experiment Worksheet

Science experiments lesson 21: Static electricity: comb and paper bits · Set 348 · 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.🛟 Static from a comb is safe. Which electricity must children never play with? (a) a rubbed plastic comb (b) paper bits on a comb (c) plug points at home (d) a rubbed balloon
2. 2.🛟 There is lightning outside. Where is it safest to be? (a) indoors (b) on a rooftop (c) in an open field (d) under a tall tree
3. 3.🔍 Which is the odd one out? (a) a heavy book (b) thermocol bits (c) a brick (d) a pebble
4. 4.⚡ Why does the comb trick work best on a dry day? (a) water adds charge (b) damp air leaks charge (c) dry days are noisy (d) wet hair is magnetic
5. 5.⚡ Which of these jumps to a charged comb? (a) tiny paper bits (b) a heavy book (c) a brick (d) a steel spoon
6. 6.⚡ A rubbed comb is held near tiny paper bits. What happens? (a) jumps to the comb (b) does not move
7. 7.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “number of rubs”? (a) we change it (b) we keep it the same (c) we measure it
8. 8.True or false: dry hair jumps to a charged comb. (a) True (b) False
9. 9.True or false: dry hair is needed for the static comb. (a) True (b) False
10. 10.True or false: vinegar is not needed for the static comb. (a) True (b) False
11. 11.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: paper bits picked up is the one thing we change. (a) False (b) True
12. 12.🧺 Which of these is not needed for the static comb? (a) a plastic comb (b) tiny paper bits (c) dry hair (d) turmeric powder
13. 13.⚡ Which of these does not move to a charged comb? (a) puffed rice (b) a thin water stream (c) a heavy book (d) thermocol bits
14. 14.⚖️ 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 keep it the same (c) we measure it
15. 15.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a plastic comb (b) tiny paper bits (c) a mirror (d) a balloon
16. 16.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) dry hair (b) a magnet (c) a balloon (d) tiny paper bits
17. 17.🔮 Predict: you wet the comb before trying again. What happens? (a) it works better (b) it lights up (c) it hardly works (d) it becomes a magnet
18. 18.⚡ Which of these jumps to a charged comb? (a) a heavy book (b) a brick (c) a pebble (d) a thin water stream
19. 19.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? Which of these is what we measure? (a) number of rubs (b) the same comb (c) the paper bit size (d) paper bits picked up
20. 20.⚡ A rubbed comb is held near a pebble. What happens? (a) does not move (b) jumps to the comb
21. 21.⚖️ 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 keep it the same (c) we change it
22. 22.True or false: turmeric powder is needed for the static comb. (a) True (b) False
23. 23.True or false: puffed rice does not move to a charged comb. (a) False (b) True
24. 24.⚡ Why does the rubbed comb pull the paper bits? (a) it is sticky (b) it is hot (c) it has static charge (d) it is a magnet
25. 25.True or false: tiny paper bits does not move to a charged comb. (a) False (b) True
26. 26.🔍 Which is the odd one out? (a) a brick (b) a steel spoon (c) a heavy book (d) dry hair
27. 27.🧺 Which of these is not needed for the static comb? (a) a plastic comb (b) tiny paper bits (c) yeast (d) dry hair
28. 28.⚖️ 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 measure it (c) we keep it the same
29. 29.🔍 Which is the odd one out? (a) tiny paper bits (b) a heavy book (c) puffed rice (d) thermocol bits
30. 30.⚖️ 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 hair (b) the paper bit size (c) number of rubs (d) distance to the paper
31. 31.🧺 Do we need dry hair for the static comb? (a) not needed (b) needed
32. 32.⚖️ 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
33. 33.⚡ You comb dry hair and hold the comb near tiny paper bits. What happens? (a) nothing happens (b) the bits jump to it (c) they turn blue (d) they turn wet
34. 34.🔍 Which is the odd one out? (a) a thin water stream (b) dry hair (c) a pebble (d) puffed rice
35. 35.True or false: a plastic comb is not needed for the static comb. (a) True (b) False
36. 36.🧺 Which of these is needed for the static comb? (a) a balloon (b) vinegar (c) a magnet (d) a battery cell
37. 37.🔍 Which is the odd one out? (a) a pebble (b) a heavy book (c) a steel spoon (d) puffed rice
38. 38.🔮 Predict: you rub a balloon on dry hair and hold it on a wall. What happens? (a) it turns into water (b) it sticks for a while (c) it bursts at once (d) it falls straight down
39. 39.🔍 Which is the odd one out? (a) a brick (b) a pebble (c) a steel spoon (d) tiny paper bits
40. 40.⚖️ 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

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