Static Electricity Experiment Worksheet

Science experiments lesson 21: Static electricity: comb and paper bits · Set 56 · 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 has static charge (b) it is sticky (c) it is a magnet (d) it is hot
2. 2.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a balloon (b) a plastic comb (c) yeast (d) dry hair
3. 3.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: distance to the paper is kept the same. (a) True (b) False
4. 4.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? Which of these is the one thing we change? (a) paper bits picked up (b) the same hair (c) the paper bit size (d) number of rubs
5. 5.⚡ A rubbed comb is held near tiny paper bits. What happens? (a) does not move (b) jumps to the comb
6. 6.🛟 There is lightning outside. Where is it safest to be? (a) in an open field (b) indoors (c) on a rooftop (d) under a tall tree
7. 7.True or false: thermocol bits does not move to a charged comb. (a) False (b) True
8. 8.🔍 Which is the odd one out? (a) dry hair (b) puffed rice (c) a thin water stream (d) a steel spoon
9. 9.🧺 Which of these is not needed for the static comb? (a) a balloon (b) tiny paper bits (c) dry hair (d) yeast
10. 10.True or false: tiny paper bits is not needed for the static comb. (a) True (b) False
11. 11.⚡ Which of these jumps to a charged comb? (a) a pebble (b) thermocol bits (c) a heavy book (d) a brick
12. 12.⚡ Which of these jumps to a charged comb? (a) a steel spoon (b) tiny paper bits (c) a heavy book (d) a pebble
13. 13.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a plastic comb (b) tiny paper bits (c) dry hair (d) a mirror
14. 14.⚡ Which of these does not move to a charged comb? (a) tiny paper bits (b) thermocol bits (c) a brick (d) a thin water stream
15. 15.⚡ A rubbed comb is held near dry hair. What happens? (a) does not move (b) jumps to the comb
16. 16.🧺 Which of these is needed for the static comb? (a) vinegar (b) a plastic comb (c) turmeric powder (d) a battery cell
17. 17.⚖️ 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) False (b) True
18. 18.⚡ Why does the comb trick work best on a dry day? (a) dry days are noisy (b) wet hair is magnetic (c) damp air leaks charge (d) water adds charge
19. 19.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “distance to the paper”? (a) we keep it the same (b) we measure it (c) we change it
20. 20.🔍 Which is the odd one out? (a) a steel spoon (b) a pebble (c) thermocol bits (d) a heavy book
21. 21.⚖️ 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
22. 22.🧺 Do we need turmeric powder for the static comb? (a) needed (b) not needed
23. 23.True or false: a battery cell is not needed for the static comb. (a) True (b) False
24. 24.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? Which of these is kept the same? (a) number of rubs (b) the same comb (c) paper bits picked up
25. 25.⚡ You comb dry hair and hold the comb near tiny paper bits. What happens? (a) nothing happens (b) they turn wet (c) the bits jump to it (d) they turn blue
26. 26.True or false: a pebble jumps to a charged comb. (a) False (b) True
27. 27.True or false: a plastic comb is not needed for the static comb. (a) False (b) True
28. 28.⚖️ 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
29. 29.True or false: dry hair does not move to a charged comb. (a) False (b) True
30. 30.True or false: dry hair jumps to a charged comb. (a) False (b) True
31. 31.🔮 Predict: you rub a balloon on dry hair and hold it on a wall. What happens? (a) it bursts at once (b) it turns into water (c) it sticks for a while (d) it falls straight down
32. 32.🧺 Do we need vinegar for the static comb? (a) needed (b) not needed
33. 33.⚡ A rubbed comb is held near a thin water stream. What happens? (a) jumps to the comb (b) does not move
34. 34.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a balloon (b) a plastic comb (c) a magnet (d) tiny paper bits
35. 35.True or false: a steel spoon jumps to a charged comb. (a) True (b) False
36. 36.True or false: a magnet is needed for the static comb. (a) False (b) True
37. 37.🔮 Predict: you wet the comb before trying again. What happens? (a) it hardly works (b) it lights up (c) it works better (d) it becomes a magnet
38. 38.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: the paper bit size is kept the same. (a) False (b) True
39. 39.🧺 Which of these is needed for the static comb? (a) yeast (b) a magnet (c) dry hair (d) a mirror
40. 40.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: distance to the paper is the one thing we change. (a) False (b) True

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