Static Electricity Experiment Worksheet

Science experiments lesson 21: Static electricity: comb and paper bits · Set 720 · 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.⚡ A rubbed comb is held near puffed rice. What happens? (a) does not move (b) jumps to the comb
2. 2.⚡ Which of these jumps to a charged comb? (a) a pebble (b) puffed rice (c) a heavy book (d) a steel spoon
3. 3.⚡ Which of these does not move to a charged comb? (a) puffed rice (b) tiny paper bits (c) a heavy book (d) a thin water stream
4. 4.🔮 Predict: you wet the comb before trying again. What happens? (a) it lights up (b) it works better (c) it hardly works (d) it becomes a magnet
5. 5.True or false: dry hair is not needed for the static comb. (a) True (b) False
6. 6.🔮 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
7. 7.⚡ Why does the comb trick work best on a dry day? (a) water adds charge (b) damp air leaks charge (c) wet hair is magnetic (d) dry days are noisy
8. 8.🔍 Which is the odd one out? (a) a heavy book (b) a pebble (c) tiny paper bits (d) a steel spoon
9. 9.🛟 Static from a comb is safe. Which electricity must children never play with? (a) a rubbed balloon (b) plug points at home (c) a rubbed plastic comb (d) paper bits on a comb
10. 10.⚡ A rubbed comb is held near a pebble. What happens? (a) does not move (b) jumps to the comb
11. 11.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “number of rubs”? (a) we measure it (b) we change it (c) we keep it the same
12. 12.🧺 Which of these is not needed for the static comb? (a) tiny paper bits (b) dry hair (c) a mirror (d) a plastic comb
13. 13.🧺 Which of these is not needed for the static comb? (a) a plastic comb (b) a balloon (c) tiny paper bits (d) turmeric powder
14. 14.⚡ Why does the rubbed comb pull the paper bits? (a) it is a magnet (b) it is hot (c) it has static charge (d) it is sticky
15. 15.⚡ Which of these jumps to a charged comb? (a) a brick (b) a heavy book (c) a pebble (d) thermocol bits
16. 16.⚡ A rubbed comb is held near a heavy book. What happens? (a) does not move (b) jumps to the comb
17. 17.True or false: a mirror is needed for the static comb. (a) False (b) True
18. 18.⚡ Which of these jumps to a charged comb? (a) a steel spoon (b) a thin water stream (c) a pebble (d) a brick
19. 19.🔍 Which is the odd one out? (a) tiny paper bits (b) puffed rice (c) dry hair (d) a steel spoon
20. 20.⚖️ 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) distance to the paper (c) the paper bit size (d) paper bits picked up
21. 21.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a mirror (b) a plastic comb (c) a balloon (d) dry hair
22. 22.⚡ Which of these jumps to a charged comb? (a) a steel spoon (b) tiny paper bits (c) a pebble (d) a brick
23. 23.🔍 Which is the odd one out? (a) a brick (b) a steel spoon (c) dry hair (d) a pebble
24. 24.📘 Rubbing moves tiny charges. What do we call the charge that builds up? (a) sunlight (b) gravity (c) static electricity (d) magnetism
25. 25.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “the same hair”? (a) we change it (b) we measure it (c) we keep it the same
26. 26.🔍 Which is the odd one out? (a) a brick (b) a heavy book (c) a steel spoon (d) a thin water stream
27. 27.🧺 Which of these is needed for the static comb? (a) yeast (b) dry hair (c) vinegar (d) a battery cell
28. 28.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? Which of these is kept the same? (a) paper bits picked up (b) number of rubs (c) the same hair
29. 29.True or false: a balloon is not needed for the static comb. (a) False (b) True
30. 30.True or false: thermocol bits jumps to a charged comb. (a) False (b) True
31. 31.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a balloon (b) tiny paper bits (c) dry hair (d) a magnet
32. 32.⚖️ 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
33. 33.True or false: thermocol bits does not move to a charged comb. (a) True (b) False
34. 34.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) tiny paper bits (b) yeast (c) dry hair (d) a plastic comb
35. 35.True or false: vinegar is needed for the static comb. (a) True (b) False
36. 36.True or false: a heavy book jumps to a charged comb. (a) True (b) False
37. 37.🧺 Do we need a plastic comb for the static comb? (a) not needed (b) needed
38. 38.🛟 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
39. 39.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? Which of these is what we measure? (a) the paper bit size (b) number of rubs (c) the same hair (d) paper bits picked up
40. 40.⚖️ 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 keep it the same (c) we measure it

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