Static Electricity Experiment Worksheet

Science experiments lesson 21: Static electricity: comb and paper bits · Set 399 · 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.⚡ Which of these does not move to a charged comb? (a) puffed rice (b) a thin water stream (c) a pebble (d) tiny paper bits
2. 2.True or false: dry hair is needed for the static comb. (a) False (b) True
3. 3.🔮 Predict: you rub a balloon on dry hair and hold it on a wall. What happens? (a) it bursts at once (b) it sticks for a while (c) it turns into water (d) it falls straight down
4. 4.🧺 Do we need dry hair for the static comb? (a) not needed (b) needed
5. 5.⚡ Which big natural spark is caused by static electricity? (a) the wind (b) dew (c) lightning (d) a rainbow
6. 6.🧺 Which of these is not needed for the static comb? (a) tiny paper bits (b) a plastic comb (c) a balloon (d) yeast
7. 7.🧺 Do we need vinegar for the static comb? (a) needed (b) not needed
8. 8.True or false: a plastic comb is needed for the static comb. (a) True (b) False
9. 9.🧺 Do we need a battery cell for the static comb? (a) needed (b) not needed
10. 10.True or false: a battery cell is not needed for the static comb. (a) True (b) False
11. 11.True or false: thermocol bits jumps to a charged comb. (a) True (b) False
12. 12.🔍 Which is the odd one out? (a) a pebble (b) a thin water stream (c) puffed rice (d) thermocol bits
13. 13.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “distance to the paper”? (a) we measure it (b) we change it (c) we keep it the same
14. 14.⚡ Which of these jumps to a charged comb? (a) a steel spoon (b) a heavy book (c) a thin water stream (d) a pebble
15. 15.🧺 Which of these is needed for the static comb? (a) a mirror (b) turmeric powder (c) a balloon (d) yeast
16. 16.⚡ Why does the comb trick work best on a dry day? (a) damp air leaks charge (b) water adds charge (c) dry days are noisy (d) wet hair is magnetic
17. 17.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a balloon (b) tiny paper bits (c) a plastic comb (d) a mirror
18. 18.⚡ Which of these does not move to a charged comb? (a) tiny paper bits (b) a brick (c) thermocol bits (d) a thin water stream
19. 19.True or false: a balloon is not needed for the static comb. (a) True (b) False
20. 20.True or false: a plastic comb is not needed for the static comb. (a) False (b) True
21. 21.🧺 Which of these is not needed for the static comb? (a) a plastic comb (b) a balloon (c) a mirror (d) tiny paper bits
22. 22.📘 Rubbing moves tiny charges. What do we call the charge that builds up? (a) gravity (b) static electricity (c) magnetism (d) sunlight
23. 23.⚡ Why does the rubbed comb pull the paper bits? (a) it is sticky (b) it is a magnet (c) it has static charge (d) it is hot
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) distance to the paper (c) paper bits picked up
25. 25.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? Which of these is what we measure? (a) paper bits picked up (b) number of rubs (c) the paper bit size (d) distance to the paper
26. 26.⚡ Which of these jumps to a charged comb? (a) thermocol bits (b) a steel spoon (c) a heavy book (d) a brick
27. 27.🧺 Which of these is needed for the static comb? (a) vinegar (b) a mirror (c) tiny paper bits (d) a magnet
28. 28.⚡ A rubbed comb is held near dry hair. What happens? (a) jumps to the comb (b) does not move
29. 29.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) tiny paper bits (b) a plastic comb (c) a balloon (d) yeast
30. 30.⚖️ 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
31. 31.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) tiny paper bits (b) turmeric powder (c) a balloon (d) dry hair
32. 32.True or false: a steel spoon jumps to a charged comb. (a) False (b) True
33. 33.🧺 Which of these is needed for the static comb? (a) turmeric powder (b) a battery cell (c) yeast (d) dry hair
34. 34.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a magnet (b) a balloon (c) tiny paper bits (d) a plastic comb
35. 35.⚖️ 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
36. 36.🔮 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
37. 37.⚡ A rubbed comb is held near a pebble. What happens? (a) does not move (b) jumps to the comb
38. 38.⚖️ 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
39. 39.True or false: a magnet is needed for the static comb. (a) True (b) False
40. 40.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) tiny paper bits (b) dry hair (c) a battery cell (d) a balloon

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