Static Electricity Experiment Worksheet

Science experiments lesson 21: Static electricity: comb and paper bits · Set 796 · 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.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a mirror (b) dry hair (c) a plastic comb (d) a balloon
2. 2.🛟 Static from a comb is safe. Which electricity must children never play with? (a) a rubbed balloon (b) plug points at home (c) a rubbed plastic comb (d) paper bits on a comb
3. 3.🧺 Which of these is not needed for the static comb? (a) a battery cell (b) dry hair (c) a balloon (d) a plastic comb
4. 4.⚡ Which of these does not move to a charged comb? (a) a thin water stream (b) tiny paper bits (c) a pebble (d) puffed rice
5. 5.🔍 Which is the odd one out? (a) tiny paper bits (b) puffed rice (c) a thin water stream (d) a heavy book
6. 6.🛟 There is lightning outside. Where is it safest to be? (a) indoors (b) in an open field (c) under a tall tree (d) on a rooftop
7. 7.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a balloon (b) dry hair (c) tiny paper bits (d) a magnet
8. 8.🔮 Predict: a charged comb is held near a thin stream of tap water. What happens? (a) nothing at all (b) the water stops (c) the stream bends (d) the water freezes
9. 9.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: the same hair is kept the same. (a) False (b) True
10. 10.🧺 Which of these is not needed for the static comb? (a) a plastic comb (b) a magnet (c) a balloon (d) dry hair
11. 11.⚡ A rubbed comb is held near a pebble. What happens? (a) jumps to the comb (b) does not move
12. 12.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: number of rubs is kept the same. (a) False (b) True
13. 13.📘 Rubbing moves tiny charges. What do we call the charge that builds up? (a) gravity (b) static electricity (c) sunlight (d) magnetism
14. 14.⚡ A rubbed comb is held near thermocol bits. What happens? (a) jumps to the comb (b) does not move
15. 15.True or false: a battery cell is not needed for the static comb. (a) False (b) True
16. 16.⚡ A rubbed comb is held near dry hair. What happens? (a) jumps to the comb (b) does not move
17. 17.🧺 Do we need tiny paper bits for the static comb? (a) needed (b) not needed
18. 18.⚖️ 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) the same hair (c) number of rubs
19. 19.⚡ Which of these does not move to a charged comb? (a) a thin water stream (b) a steel spoon (c) tiny paper bits (d) thermocol bits
20. 20.⚖️ 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) True (b) False
21. 21.🔮 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
22. 22.True or false: a balloon is needed for the static comb. (a) True (b) False
23. 23.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? Which of these is what we measure? (a) the same hair (b) number of rubs (c) paper bits picked up (d) the same comb
24. 24.⚖️ 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) True (b) False
25. 25.🧺 Which of these is needed for the static comb? (a) yeast (b) vinegar (c) a plastic comb (d) a magnet
26. 26.True or false: a pebble jumps to a charged comb. (a) True (b) False
27. 27.⚖️ 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 same comb
28. 28.⚡ Why does the comb trick work best on a dry day? (a) dry days are noisy (b) water adds charge (c) damp air leaks charge (d) wet hair is magnetic
29. 29.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) dry hair (b) a balloon (c) a plastic comb (d) yeast
30. 30.True or false: a pebble does not move to a charged comb. (a) False (b) True
31. 31.True or false: tiny paper bits is needed for the static comb. (a) True (b) False
32. 32.🧺 Do we need turmeric powder for the static comb? (a) not needed (b) needed
33. 33.True or false: a mirror is needed for the static comb. (a) False (b) True
34. 34.⚡ Why does the rubbed comb pull the paper bits? (a) it is hot (b) it has static charge (c) it is a magnet (d) it is sticky
35. 35.True or false: a battery cell is needed for the static comb. (a) False (b) True
36. 36.True or false: a heavy book does not move to a charged comb. (a) False (b) True
37. 37.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “the same hair”? (a) we keep it the same (b) we change it (c) we measure it
38. 38.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “paper bits picked up”? (a) we change it (b) we keep it the same (c) we measure it
39. 39.🧺 Do we need vinegar for the static comb? (a) needed (b) not needed
40. 40.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “number of rubs”? (a) we measure it (b) we change it (c) we keep it the same

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