Static Electricity Experiment Worksheet

Science experiments lesson 21: Static electricity: comb and paper bits · Set 699 · 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 is needed for the static comb? (a) a magnet (b) a plastic comb (c) a mirror (d) yeast
2. 2.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a magnet (b) dry hair (c) a plastic comb (d) a balloon
3. 3.🧺 Which of these is needed for the static comb? (a) a magnet (b) a mirror (c) turmeric powder (d) a balloon
4. 4.⚡ A rubbed comb is held near puffed rice. What happens? (a) jumps to the comb (b) does not move
5. 5.🔍 Which is the odd one out? (a) a steel spoon (b) thermocol bits (c) dry hair (d) tiny paper bits
6. 6.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “number of rubs”? (a) we change it (b) we measure it (c) we keep it the same
7. 7.🔮 Predict: you wet the comb before trying again. What happens? (a) it lights up (b) it hardly works (c) it becomes a magnet (d) it works better
8. 8.🔍 Which is the odd one out? (a) a brick (b) thermocol bits (c) puffed rice (d) dry hair
9. 9.⚡ Which of these jumps to a charged comb? (a) a brick (b) tiny paper bits (c) a pebble (d) a steel spoon
10. 10.🧺 Do we need a battery cell for the static comb? (a) needed (b) not needed
11. 11.⚖️ 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 paper bit size
12. 12.⚡ Which of these does not move to a charged comb? (a) a steel spoon (b) tiny paper bits (c) dry hair (d) puffed rice
13. 13.⚖️ 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) True (b) False
14. 14.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “the same comb”? (a) we keep it the same (b) we change it (c) we measure it
15. 15.⚖️ 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) paper bits picked up (c) the same comb
16. 16.⚖️ 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
17. 17.🧺 Do we need a mirror for the static comb? (a) not needed (b) needed
18. 18.🧺 Which of these is not needed for the static comb? (a) a balloon (b) a plastic comb (c) tiny paper bits (d) a mirror
19. 19.🧺 Which of these is not needed for the static comb? (a) a magnet (b) a plastic comb (c) dry hair (d) tiny paper bits
20. 20.🧺 Do we need a plastic comb for the static comb? (a) needed (b) not needed
21. 21.🧺 Do we need a balloon for the static comb? (a) needed (b) not needed
22. 22.⚖️ 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 comb (c) distance to the paper (d) number of rubs
23. 23.🧺 Do we need a magnet for the static comb? (a) not needed (b) needed
24. 24.⚡ A rubbed comb is held near tiny paper bits. What happens? (a) jumps to the comb (b) does not move
25. 25.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: the paper bit size is what we measure. (a) True (b) False
26. 26.🛟 Static from a comb is safe. Which electricity must children never play with? (a) plug points at home (b) a rubbed plastic comb (c) paper bits on a comb (d) a rubbed balloon
27. 27.🧺 Do we need dry hair for the static comb? (a) needed (b) not needed
28. 28.True or false: a heavy book does not move to a charged comb. (a) False (b) True
29. 29.🔍 Which is the odd one out? (a) a brick (b) a steel spoon (c) a pebble (d) a thin water stream
30. 30.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: the same hair is the one thing we change. (a) True (b) False
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 thermocol bits. What happens? (a) jumps to the comb (b) does not move
33. 33.🧺 Which of these is needed for the static comb? (a) turmeric powder (b) a magnet (c) a mirror (d) tiny paper bits
34. 34.⚡ A rubbed comb is held near a thin water stream. What happens? (a) does not move (b) jumps to the comb
35. 35.🧺 Which of these is not needed for the static comb? (a) dry hair (b) tiny paper bits (c) a balloon (d) turmeric powder
36. 36.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) yeast (b) a plastic comb (c) tiny paper bits (d) dry hair
37. 37.⚡ Which of these does not move to a charged comb? (a) a pebble (b) thermocol bits (c) dry hair (d) puffed rice
38. 38.📘 Rubbing moves tiny charges. What do we call the charge that builds up? (a) static electricity (b) magnetism (c) gravity (d) sunlight
39. 39.⚡ A rubbed comb is held near dry hair. What happens? (a) does not move (b) jumps to the comb
40. 40.🔮 Predict: a charged comb is held near a thin stream of tap water. What happens? (a) nothing at all (b) the water freezes (c) the water stops (d) the stream bends

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