Static Electricity Experiment Worksheet

Science experiments lesson 21: Static electricity: comb and paper bits · Set 484 · 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.⚡ Why does the rubbed comb pull the paper bits? (a) it is a magnet (b) it is hot (c) it is sticky (d) it has static charge
2. 2.⚡ A rubbed comb is held near puffed rice. What happens? (a) does not move (b) jumps to the comb
3. 3.🔍 Which is the odd one out? (a) puffed rice (b) a brick (c) a heavy book (d) a steel spoon
4. 4.⚡ A rubbed comb is held near a thin water stream. What happens? (a) does not move (b) jumps to the comb
5. 5.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) dry hair (b) tiny paper bits (c) a plastic comb (d) a battery cell
6. 6.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? Which of these is kept the same? (a) the same comb (b) number of rubs (c) paper bits picked up
7. 7.🔍 Which is the odd one out? (a) a brick (b) a pebble (c) a steel spoon (d) dry hair
8. 8.🧺 Do we need a magnet for the static comb? (a) needed (b) not needed
9. 9.🧺 Which of these is not needed for the static comb? (a) tiny paper bits (b) a balloon (c) a plastic comb (d) yeast
10. 10.True or false: a brick jumps to a charged comb. (a) True (b) False
11. 11.⚖️ 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
12. 12.🛟 Static from a comb is safe. Which electricity must children never play with? (a) plug points at home (b) a rubbed balloon (c) paper bits on a comb (d) a rubbed plastic comb
13. 13.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “the paper bit size”? (a) we change it (b) we measure it (c) we keep it the same
14. 14.🔮 Predict: a charged comb is held near a thin stream of tap water. What happens? (a) nothing at all (b) the water stops (c) the stream bends (d) the water freezes
15. 15.🧺 Do we need a balloon for the static comb? (a) not needed (b) needed
16. 16.🛟 There is lightning outside. Where is it safest to be? (a) in an open field (b) indoors (c) under a tall tree (d) on a rooftop
17. 17.🔮 Predict: you wet the comb before trying again. What happens? (a) it hardly works (b) it works better (c) it becomes a magnet (d) it lights up
18. 18.⚡ Why does the comb trick work best on a dry day? (a) water adds charge (b) wet hair is magnetic (c) dry days are noisy (d) damp air leaks charge
19. 19.True or false: a magnet is not needed for the static comb. (a) False (b) True
20. 20.True or false: dry hair is not needed for the static comb. (a) False (b) True
21. 21.⚡ Which of these jumps to a charged comb? (a) a steel spoon (b) a pebble (c) thermocol bits (d) a heavy book
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 same hair (c) the same comb (d) paper bits picked up
23. 23.🧺 Do we need a mirror for the static comb? (a) needed (b) not needed
24. 24.🔍 Which is the odd one out? (a) puffed rice (b) tiny paper bits (c) a brick (d) dry hair
25. 25.⚖️ 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
26. 26.⚡ A rubbed comb is held near a steel spoon. What happens? (a) does not move (b) jumps to the comb
27. 27.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a plastic comb (b) vinegar (c) tiny paper bits (d) dry hair
28. 28.True or false: thermocol bits does not move to a charged comb. (a) False (b) True
29. 29.⚡ A rubbed comb is held near a pebble. What happens? (a) does not move (b) jumps to the comb
30. 30.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) dry hair (b) a magnet (c) tiny paper bits (d) a plastic comb
31. 31.🧺 Which of these is needed for the static comb? (a) a battery cell (b) a plastic comb (c) a mirror (d) a magnet
32. 32.True or false: dry hair does not move to a charged comb. (a) True (b) False
33. 33.True or false: tiny paper bits is not needed for the static comb. (a) True (b) False
34. 34.🧺 Which of these is not needed for the static comb? (a) tiny paper bits (b) a balloon (c) dry hair (d) turmeric powder
35. 35.🧺 Which of these is not needed for the static comb? (a) dry hair (b) a plastic comb (c) tiny paper bits (d) a battery cell
36. 36.🔍 Which is the odd one out? (a) a pebble (b) a brick (c) thermocol bits (d) a heavy book
37. 37.🧺 Do we need dry hair for the static comb? (a) needed (b) not needed
38. 38.⚡ 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
39. 39.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: the same hair is kept the same. (a) False (b) True
40. 40.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: the same comb is what we measure. (a) True (b) False

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