Static Electricity Experiment Worksheet

Science experiments lesson 21: Static electricity: comb and paper bits · Set 474 · 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 big natural spark is caused by static electricity? (a) dew (b) a rainbow (c) lightning (d) the wind
2. 2.True or false: a mirror is needed for the static comb. (a) True (b) False
3. 3.🛟 Static from a comb is safe. Which electricity must children never play with? (a) a rubbed balloon (b) paper bits on a comb (c) a rubbed plastic comb (d) plug points at home
4. 4.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) tiny paper bits (b) a balloon (c) yeast (d) a plastic comb
5. 5.True or false: a brick jumps to a charged comb. (a) True (b) False
6. 6.True or false: vinegar is not needed for the static comb. (a) False (b) True
7. 7.⚡ Which of these does not move to a charged comb? (a) a heavy book (b) a thin water stream (c) tiny paper bits (d) puffed rice
8. 8.True or false: dry hair does not move to a charged comb. (a) True (b) False
9. 9.⚖️ 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) True (b) False
10. 10.🔍 Which is the odd one out? (a) a steel spoon (b) a brick (c) a heavy book (d) tiny paper bits
11. 11.⚡ A rubbed comb is held near a thin water stream. What happens? (a) does not move (b) jumps to the comb
12. 12.⚡ A rubbed comb is held near thermocol bits. What happens? (a) does not move (b) jumps to the comb
13. 13.⚡ Which of these jumps to a charged comb? (a) a brick (b) a pebble (c) a heavy book (d) a thin water stream
14. 14.⚡ Which of these jumps to a charged comb? (a) a brick (b) a pebble (c) dry hair (d) a heavy book
15. 15.⚡ Which of these jumps to a charged comb? (a) puffed rice (b) a pebble (c) a steel spoon (d) a brick
16. 16.True or false: thermocol bits jumps to a charged comb. (a) True (b) False
17. 17.True or false: a plastic comb is needed for the static comb. (a) False (b) True
18. 18.True or false: tiny paper bits is not needed for the static comb. (a) False (b) True
19. 19.⚡ Why does the comb trick work best on a dry day? (a) dry days are noisy (b) wet hair is magnetic (c) damp air leaks charge (d) water adds charge
20. 20.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “the same comb”? (a) we measure it (b) we change it (c) we keep it the same
21. 21.⚖️ 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) distance to the paper
22. 22.True or false: dry hair is not needed for the static comb. (a) False (b) True
23. 23.⚖️ 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
24. 24.True or false: a plastic comb is not needed for the static comb. (a) False (b) True
25. 25.🧺 Do we need turmeric powder for the static comb? (a) needed (b) not needed
26. 26.🧺 Do we need vinegar for the static comb? (a) needed (b) not needed
27. 27.🧺 Do we need yeast for the static comb? (a) needed (b) not needed
28. 28.⚖️ 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 keep it the same (c) we change it
29. 29.⚡ Which of these does not move to a charged comb? (a) a pebble (b) dry hair (c) puffed rice (d) tiny paper bits
30. 30.🛟 There is lightning outside. Where is it safest to be? (a) on a rooftop (b) under a tall tree (c) in an open field (d) indoors
31. 31.📘 Rubbing moves tiny charges. What do we call the charge that builds up? (a) gravity (b) magnetism (c) sunlight (d) static electricity
32. 32.🔮 Predict: a charged comb is held near a thin stream of tap water. What happens? (a) the stream bends (b) nothing at all (c) the water stops (d) the water freezes
33. 33.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a mirror (b) a plastic comb (c) tiny paper bits (d) a balloon
34. 34.🔮 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
35. 35.🧺 Do we need a battery cell for the static comb? (a) needed (b) not needed
36. 36.⚡ A rubbed comb is held near tiny paper bits. What happens? (a) does not move (b) jumps to the comb
37. 37.🧺 Which of these is not needed for the static comb? (a) a plastic comb (b) a mirror (c) a balloon (d) tiny paper bits
38. 38.⚖️ 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
39. 39.🧺 Which of these is not needed for the static comb? (a) turmeric powder (b) dry hair (c) a balloon (d) tiny paper bits
40. 40.⚖️ 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

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