Static Electricity Experiment Worksheet

Science experiments lesson 21: Static electricity: comb and paper bits · Set 541 · 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) tiny paper bits (b) dry hair (c) a plastic comb (d) a magnet
2. 2.⚡ Which of these does not move to a charged comb? (a) thermocol bits (b) a heavy book (c) puffed rice (d) tiny paper bits
3. 3.⚖️ 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) the same hair (c) paper bits picked up
4. 4.⚡ Which of these does not move to a charged comb? (a) dry hair (b) a steel spoon (c) thermocol bits (d) tiny paper bits
5. 5.⚖️ 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) the same comb (c) paper bits picked up
6. 6.True or false: tiny paper bits does not move to a charged comb. (a) True (b) False
7. 7.⚡ You comb dry hair and hold the comb near tiny paper bits. What happens? (a) the bits jump to it (b) they turn wet (c) they turn blue (d) nothing happens
8. 8.True or false: turmeric powder is not needed for the static comb. (a) False (b) True
9. 9.⚖️ 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 comb (c) number of rubs (d) the same hair
10. 10.True or false: a magnet is needed for the static comb. (a) False (b) True
11. 11.True or false: dry hair jumps to a charged comb. (a) False (b) True
12. 12.🧺 Which of these is needed for the static comb? (a) turmeric powder (b) tiny paper bits (c) yeast (d) a mirror
13. 13.⚡ A rubbed comb is held near a brick. What happens? (a) jumps to the comb (b) does not move
14. 14.🔍 Which is the odd one out? (a) a brick (b) tiny paper bits (c) a pebble (d) a heavy book
15. 15.⚡ Which of these jumps to a charged comb? (a) tiny paper bits (b) a steel spoon (c) a heavy book (d) a brick
16. 16.🔮 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 turns into water (d) it sticks for a while
17. 17.True or false: a thin water stream does not move to a charged comb. (a) True (b) False
18. 18.🔍 Which is the odd one out? (a) tiny paper bits (b) puffed rice (c) a heavy book (d) dry hair
19. 19.True or false: yeast is needed for the static comb. (a) True (b) False
20. 20.🔍 Which is the odd one out? (a) dry hair (b) a brick (c) tiny paper bits (d) puffed rice
21. 21.🛟 There is lightning outside. Where is it safest to be? (a) under a tall tree (b) in an open field (c) indoors (d) on a rooftop
22. 22.⚡ Which big natural spark is caused by static electricity? (a) a rainbow (b) the wind (c) dew (d) lightning
23. 23.🧺 Do we need a magnet for the static comb? (a) needed (b) not needed
24. 24.🧺 Which of these is not needed for the static comb? (a) a balloon (b) a plastic comb (c) tiny paper bits (d) a mirror
25. 25.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “distance to the paper”? (a) we change it (b) we measure it (c) we keep it the same
26. 26.⚖️ 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 change it (c) we measure it
27. 27.⚡ Which of these jumps to a charged comb? (a) a steel spoon (b) a heavy book (c) a pebble (d) puffed rice
28. 28.⚡ Which of these jumps to a charged comb? (a) a pebble (b) thermocol bits (c) a brick (d) a steel spoon
29. 29.True or false: dry hair does not move to a charged comb. (a) True (b) False
30. 30.⚖️ 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) False (b) True
31. 31.True or false: a steel spoon jumps to a charged comb. (a) True (b) False
32. 32.🔮 Predict: you wet the comb before trying again. What happens? (a) it becomes a magnet (b) it works better (c) it lights up (d) it hardly works
33. 33.True or false: a plastic comb is needed for the static comb. (a) True (b) False
34. 34.⚡ Why does the rubbed comb pull the paper bits? (a) it is sticky (b) it has static charge (c) it is a magnet (d) it is hot
35. 35.⚖️ 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
36. 36.🔍 Which is the odd one out? (a) tiny paper bits (b) thermocol bits (c) a pebble (d) a thin water stream
37. 37.📘 Rubbing moves tiny charges. What do we call the charge that builds up? (a) gravity (b) static electricity (c) sunlight (d) magnetism
38. 38.🧺 Do we need a plastic comb for the static comb? (a) not needed (b) needed
39. 39.🧺 Do we need yeast for the static comb? (a) not needed (b) needed
40. 40.⚖️ 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

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