Static Electricity Experiment Worksheet

Science experiments lesson 21: Static electricity: comb and paper bits · Set 638 · 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.True or false: a balloon is not needed for the static comb. (a) True (b) False
2. 2.⚡ You comb dry hair and hold the comb near tiny paper bits. What happens? (a) they turn blue (b) they turn wet (c) nothing happens (d) the bits jump to it
3. 3.⚡ Why does the comb trick work best on a dry day? (a) dry days are noisy (b) water adds charge (c) wet hair is magnetic (d) damp air leaks charge
4. 4.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “paper bits picked up”? (a) we keep it the same (b) we measure it (c) we change it
5. 5.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “distance to the paper”? (a) we change it (b) we keep it the same (c) we measure it
6. 6.⚡ A rubbed comb is held near a heavy book. What happens? (a) does not move (b) jumps to the comb
7. 7.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: number of rubs is kept the same. (a) True (b) False
8. 8.⚡ Which of these does not move to a charged comb? (a) a pebble (b) thermocol bits (c) tiny paper bits (d) dry hair
9. 9.True or false: tiny paper bits is needed for the static comb. (a) True (b) False
10. 10.🧺 Do we need yeast for the static comb? (a) needed (b) not needed
11. 11.🔮 Predict: you rub a balloon on dry hair and hold it on a wall. What happens? (a) it sticks for a while (b) it turns into water (c) it bursts at once (d) it falls straight down
12. 12.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) yeast (b) a balloon (c) a plastic comb (d) dry hair
13. 13.⚡ A rubbed comb is held near puffed rice. What happens? (a) does not move (b) jumps to the comb
14. 14.⚡ Which of these jumps to a charged comb? (a) a thin water stream (b) a pebble (c) a steel spoon (d) a heavy book
15. 15.🧺 Which of these is not needed for the static comb? (a) dry hair (b) a magnet (c) a balloon (d) a plastic comb
16. 16.🧺 Do we need dry hair for the static comb? (a) needed (b) not needed
17. 17.⚡ Which of these jumps to a charged comb? (a) a pebble (b) thermocol bits (c) a heavy book (d) a brick
18. 18.🧺 Which of these is not needed for the static comb? (a) tiny paper bits (b) dry hair (c) a plastic comb (d) yeast
19. 19.⚖️ 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
20. 20.🧺 Which of these is not needed for the static comb? (a) a plastic comb (b) vinegar (c) a balloon (d) tiny paper bits
21. 21.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: the paper bit size is the one thing we change. (a) False (b) True
22. 22.🧺 Do we need a balloon for the static comb? (a) not needed (b) needed
23. 23.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: the same comb is kept the same. (a) False (b) True
24. 24.🔮 Predict: you wet the comb before trying again. What happens? (a) it works better (b) it becomes a magnet (c) it lights up (d) it hardly works
25. 25.🛟 Static from a comb is safe. Which electricity must children never play with? (a) a rubbed balloon (b) paper bits on a comb (c) a rubbed plastic comb (d) plug points at home
26. 26.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a plastic comb (b) turmeric powder (c) dry hair (d) tiny paper bits
27. 27.⚡ Which of these jumps to a charged comb? (a) a steel spoon (b) a pebble (c) puffed rice (d) a brick
28. 28.🔍 Which is the odd one out? (a) a steel spoon (b) a thin water stream (c) a pebble (d) a heavy book
29. 29.🔍 Which is the odd one out? (a) a heavy book (b) a brick (c) a steel spoon (d) tiny paper bits
30. 30.⚖️ 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 paper bit size (c) the same comb (d) paper bits picked up
31. 31.⚡ A rubbed comb is held near a brick. What happens? (a) jumps to the comb (b) does not move
32. 32.🧺 Do we need a battery cell for the static comb? (a) not needed (b) needed
33. 33.🔍 Which is the odd one out? (a) dry hair (b) a thin water stream (c) thermocol bits (d) a steel spoon
34. 34.True or false: a pebble does not move to a charged comb. (a) False (b) True
35. 35.⚖️ 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
36. 36.⚖️ 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 keep it the same (c) we change it
37. 37.🧺 Which of these is needed for the static comb? (a) a mirror (b) a battery cell (c) a magnet (d) dry hair
38. 38.⚡ Which of these does not move to a charged comb? (a) a heavy book (b) tiny paper bits (c) dry hair (d) thermocol bits
39. 39.⚡ A rubbed comb is held near tiny paper bits. What happens? (a) jumps to the comb (b) does not move
40. 40.🧺 Which of these is needed for the static comb? (a) turmeric powder (b) a plastic comb (c) a magnet (d) vinegar

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