Static Electricity Experiment Worksheet

Science experiments lesson 21: Static electricity: comb and paper bits · Set 656 · 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.📘 Rubbing moves tiny charges. What do we call the charge that builds up? (a) sunlight (b) static electricity (c) magnetism (d) gravity
2. 2.⚡ Which of these jumps to a charged comb? (a) a heavy book (b) a thin water stream (c) a pebble (d) a brick
3. 3.⚖️ 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
4. 4.⚡ A rubbed comb is held near a steel spoon. What happens? (a) jumps to the comb (b) does not move
5. 5.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? Which of these is what we measure? (a) the same comb (b) the paper bit size (c) the same hair (d) paper bits picked up
6. 6.🔮 Predict: you rub a balloon on dry hair and hold it on a wall. What happens? (a) it falls straight down (b) it bursts at once (c) it sticks for a while (d) it turns into water
7. 7.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) tiny paper bits (b) a battery cell (c) dry hair (d) a balloon
8. 8.True or false: puffed rice jumps to a charged comb. (a) True (b) False
9. 9.🧺 Do we need a balloon for the static comb? (a) not needed (b) needed
10. 10.True or false: a thin water stream does not move to a charged comb. (a) False (b) True
11. 11.True or false: turmeric powder is not needed for the static comb. (a) True (b) False
12. 12.⚡ A rubbed comb is held near a brick. What happens? (a) does not move (b) jumps to the comb
13. 13.True or false: a plastic comb is not needed for the static comb. (a) True (b) False
14. 14.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: the same comb is what we measure. (a) False (b) True
15. 15.🔮 Predict: a charged comb is held near a thin stream of tap water. What happens? (a) the water freezes (b) nothing at all (c) the stream bends (d) the water stops
16. 16.⚖️ 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) False (b) True
17. 17.True or false: vinegar is not needed for the static comb. (a) False (b) True
18. 18.⚡ Which of these does not move to a charged comb? (a) dry hair (b) a thin water stream (c) tiny paper bits (d) a steel spoon
19. 19.⚡ Why does the rubbed comb pull the paper bits? (a) it is a magnet (b) it has static charge (c) it is sticky (d) it is hot
20. 20.⚡ Which of these jumps to a charged comb? (a) thermocol bits (b) a heavy book (c) a brick (d) a steel spoon
21. 21.🛟 There is lightning outside. Where is it safest to be? (a) under a tall tree (b) on a rooftop (c) in an open field (d) indoors
22. 22.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? Which of these is kept the same? (a) the paper bit size (b) paper bits picked up (c) number of rubs
23. 23.True or false: a plastic comb is needed for the static comb. (a) False (b) True
24. 24.⚡ A rubbed comb is held near thermocol 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? What do we do with “the paper bit size”? (a) we keep it the same (b) we measure it (c) we change it
26. 26.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: the same hair is what we measure. (a) True (b) False
27. 27.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) dry hair (b) yeast (c) a plastic comb (d) tiny paper bits
28. 28.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? Which of these is the one thing we change? (a) the same comb (b) the paper bit size (c) number of rubs (d) the same hair
29. 29.🛟 Static from a comb is safe. Which electricity must children never play with? (a) a rubbed balloon (b) plug points at home (c) paper bits on a comb (d) a rubbed plastic comb
30. 30.⚡ Which big natural spark is caused by static electricity? (a) the wind (b) a rainbow (c) dew (d) lightning
31. 31.🔍 Which is the odd one out? (a) thermocol bits (b) a brick (c) puffed rice (d) dry hair
32. 32.True or false: a heavy book does not move to a charged comb. (a) True (b) False
33. 33.⚖️ 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 change it (c) we measure it
34. 34.🧺 Which of these is needed for the static comb? (a) turmeric powder (b) a magnet (c) a battery cell (d) tiny paper bits
35. 35.🧺 Which of these is not needed for the static comb? (a) a plastic comb (b) turmeric powder (c) tiny paper bits (d) dry hair
36. 36.True or false: a mirror is needed for the static comb. (a) True (b) False
37. 37.True or false: dry hair is not needed for the static comb. (a) True (b) False
38. 38.True or false: tiny paper bits is needed for the static comb. (a) True (b) False
39. 39.⚡ Why does the comb trick work best on a dry day? (a) water adds charge (b) wet hair is magnetic (c) damp air leaks charge (d) dry days are noisy
40. 40.True or false: puffed rice does not move to a charged comb. (a) False (b) True

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