Static Electricity Experiment Worksheet

Science experiments lesson 21: Static electricity: comb and paper bits · Set 283 · 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: a battery cell is needed for the static comb. (a) False (b) True
2. 2.🧺 Do we need tiny paper bits for the static comb? (a) needed (b) not needed
3. 3.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: paper bits picked up is kept the same. (a) False (b) True
4. 4.⚖️ 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) the same hair (c) the paper bit size (d) the same comb
5. 5.⚡ A rubbed comb is held near thermocol bits. What happens? (a) jumps to the comb (b) does not move
6. 6.🔍 Which is the odd one out? (a) a brick (b) a heavy book (c) a steel spoon (d) tiny paper bits
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 measure it (b) we keep it the same (c) we change it
8. 8.🔮 Predict: a charged comb is held near a thin stream of tap water. What happens? (a) the water stops (b) the stream bends (c) nothing at all (d) the water freezes
9. 9.⚖️ 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
10. 10.⚡ A rubbed comb is held near tiny paper bits. What happens? (a) does not move (b) jumps to the comb
11. 11.🛟 There is lightning outside. Where is it safest to be? (a) on a rooftop (b) in an open field (c) indoors (d) under a tall tree
12. 12.True or false: turmeric powder is not needed for the static comb. (a) False (b) True
13. 13.🧺 Do we need turmeric powder for the static comb? (a) not needed (b) needed
14. 14.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a plastic comb (b) tiny paper bits (c) a balloon (d) a battery cell
15. 15.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: the same hair is kept the same. (a) True (b) False
16. 16.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) tiny paper bits (b) a magnet (c) a plastic comb (d) a balloon
17. 17.🧺 Which of these is not needed for the static comb? (a) a balloon (b) a plastic comb (c) vinegar (d) dry hair
18. 18.🔍 Which is the odd one out? (a) dry hair (b) puffed rice (c) a heavy book (d) a thin water stream
19. 19.True or false: a magnet is needed for the static comb. (a) True (b) False
20. 20.🧺 Do we need a mirror for the static comb? (a) not needed (b) needed
21. 21.True or false: thermocol bits jumps to a charged comb. (a) True (b) False
22. 22.🧺 Which of these is needed for the static comb? (a) a plastic comb (b) a magnet (c) yeast (d) vinegar
23. 23.⚖️ 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) False (b) True
24. 24.True or false: a balloon is needed for the static comb. (a) False (b) True
25. 25.True or false: a brick jumps to a charged comb. (a) False (b) True
26. 26.🧺 Which of these is not needed for the static comb? (a) a mirror (b) dry hair (c) tiny paper bits (d) a plastic comb
27. 27.⚡ Which of these does not move to a charged comb? (a) a thin water stream (b) tiny paper bits (c) a heavy book (d) puffed rice
28. 28.⚡ Why does the rubbed comb pull the paper bits? (a) it is hot (b) it is sticky (c) it is a magnet (d) it has static charge
29. 29.⚖️ 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
30. 30.🔮 Predict: you rub a balloon on dry hair and hold it on a wall. What happens? (a) it falls straight down (b) it turns into water (c) it bursts at once (d) it sticks for a while
31. 31.🧺 Which of these is not needed for the static comb? (a) dry hair (b) turmeric powder (c) tiny paper bits (d) a balloon
32. 32.🛟 Static from a comb is safe. Which electricity must children never play with? (a) paper bits on a comb (b) a rubbed plastic comb (c) plug points at home (d) a rubbed balloon
33. 33.⚖️ 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
34. 34.True or false: turmeric powder is needed for the static comb. (a) True (b) False
35. 35.⚡ Why does the comb trick work best on a dry day? (a) water adds charge (b) dry days are noisy (c) damp air leaks charge (d) wet hair is magnetic
36. 36.⚡ A rubbed comb is held near a pebble. What happens? (a) jumps to the comb (b) does not move
37. 37.📘 Rubbing moves tiny charges. What do we call the charge that builds up? (a) sunlight (b) static electricity (c) gravity (d) magnetism
38. 38.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: the same comb is what we measure. (a) True (b) False
39. 39.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: paper bits picked up is the one thing we change. (a) True (b) False
40. 40.⚡ Which of these jumps to a charged comb? (a) a heavy book (b) a pebble (c) dry hair (d) a brick

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