Static Electricity Experiment Worksheet

Science experiments lesson 21: Static electricity: comb and paper bits · Set 613 · 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: dry hair is not needed for the static comb. (a) False (b) True
2. 2.🔮 Predict: a charged comb is held near a thin stream of tap water. What happens? (a) the water freezes (b) the stream bends (c) nothing at all (d) the water stops
3. 3.⚖️ 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
4. 4.⚡ Which big natural spark is caused by static electricity? (a) the wind (b) a rainbow (c) lightning (d) dew
5. 5.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “number of rubs”? (a) we keep it the same (b) we measure it (c) we change it
6. 6.⚖️ 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 same hair (c) the paper bit size (d) paper bits picked up
7. 7.⚖️ 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
8. 8.🛟 Static from a comb is safe. Which electricity must children never play with? (a) a rubbed balloon (b) a rubbed plastic comb (c) plug points at home (d) paper bits on a comb
9. 9.True or false: tiny paper bits does not move to a charged comb. (a) False (b) True
10. 10.🔍 Which is the odd one out? (a) a heavy book (b) thermocol bits (c) a steel spoon (d) a pebble
11. 11.🔍 Which is the odd one out? (a) puffed rice (b) thermocol bits (c) a thin water stream (d) a brick
12. 12.⚡ 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
13. 13.⚡ Which of these jumps to a charged comb? (a) a pebble (b) a heavy book (c) a brick (d) tiny paper bits
14. 14.⚡ A rubbed comb is held near a thin water stream. What happens? (a) jumps to the comb (b) does not move
15. 15.🧺 Which of these is not needed for the static comb? (a) a plastic comb (b) a magnet (c) dry hair (d) a balloon
16. 16.True or false: a balloon is needed for the static comb. (a) False (b) True
17. 17.🧺 Do we need a balloon for the static comb? (a) needed (b) not needed
18. 18.⚡ You comb dry hair and hold the comb near tiny paper bits. What happens? (a) the bits jump to it (b) they turn wet (c) nothing happens (d) they turn blue
19. 19.🔍 Which is the odd one out? (a) dry hair (b) thermocol bits (c) a pebble (d) a thin water stream
20. 20.⚖️ 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
21. 21.🧺 Which of these is not needed for the static comb? (a) a balloon (b) a plastic comb (c) yeast (d) tiny paper bits
22. 22.True or false: yeast is needed for the static comb. (a) True (b) False
23. 23.🧺 Do we need a plastic comb for the static comb? (a) needed (b) not needed
24. 24.🧺 Which of these is needed for the static comb? (a) a magnet (b) tiny paper bits (c) turmeric powder (d) a mirror
25. 25.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a plastic comb (b) dry hair (c) a balloon (d) a mirror
26. 26.🧺 Do we need dry hair for the static comb? (a) needed (b) not needed
27. 27.🔍 Which is the odd one out? (a) puffed rice (b) dry hair (c) a steel spoon (d) thermocol bits
28. 28.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) yeast (b) a balloon (c) tiny paper bits (d) a plastic comb
29. 29.⚖️ 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
30. 30.🧺 Which of these is needed for the static comb? (a) a battery cell (b) yeast (c) dry hair (d) vinegar
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 falls straight down (c) it sticks for a while (d) it turns into water
32. 32.⚡ A rubbed comb is held near puffed rice. What happens? (a) jumps to the comb (b) does not move
33. 33.⚡ A rubbed comb is held near thermocol bits. What happens? (a) jumps to the comb (b) does not move
34. 34.True or false: tiny paper bits is needed for the static comb. (a) True (b) False
35. 35.True or false: turmeric powder is not needed for the static comb. (a) True (b) False
36. 36.📘 Rubbing moves tiny charges. What do we call the charge that builds up? (a) gravity (b) magnetism (c) static electricity (d) sunlight
37. 37.🧺 Which of these is not needed for the static comb? (a) tiny paper bits (b) turmeric powder (c) a balloon (d) a plastic comb
38. 38.🛟 There is lightning outside. Where is it safest to be? (a) under a tall tree (b) indoors (c) in an open field (d) on a rooftop
39. 39.⚡ A rubbed comb is held near a heavy book. What happens? (a) jumps to the comb (b) does not move
40. 40.🧺 Which of these is not needed for the static comb? (a) a plastic comb (b) a battery cell (c) dry hair (d) a balloon

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