Static Electricity Experiment Worksheet

Science experiments lesson 21: Static electricity: comb and paper bits · Set 675 · 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.⚡ Why does the rubbed comb pull the paper bits? (a) it is sticky (b) it is hot (c) it has static charge (d) it is a magnet
2. 2.🧺 Do we need a balloon for the static comb? (a) not needed (b) needed
3. 3.⚖️ 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) number of rubs (d) paper bits picked up
4. 4.⚡ Which of these does not move to a charged comb? (a) puffed rice (b) a pebble (c) dry hair (d) tiny paper bits
5. 5.⚖️ 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 change it (c) we keep it the same
6. 6.⚡ A rubbed comb is held near a thin water stream. What happens? (a) does not move (b) jumps to the comb
7. 7.⚡ A rubbed comb is held near a steel spoon. What happens? (a) jumps to the comb (b) does not move
8. 8.⚖️ 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 keep it the same (c) we change it
9. 9.🛟 Static from a comb is safe. Which electricity must children never play with? (a) a rubbed plastic comb (b) paper bits on a comb (c) a rubbed balloon (d) plug points at home
10. 10.True or false: dry hair does not move to a charged comb. (a) True (b) False
11. 11.🧺 Which of these is needed for the static comb? (a) a mirror (b) a battery cell (c) a balloon (d) a magnet
12. 12.🔮 Predict: you rub a balloon on dry hair and hold it on a wall. What happens? (a) it turns into water (b) it sticks for a while (c) it falls straight down (d) it bursts at once
13. 13.🧺 Do we need a plastic comb for the static comb? (a) needed (b) not needed
14. 14.⚡ Which of these jumps to a charged comb? (a) a steel spoon (b) a heavy book (c) puffed rice (d) a pebble
15. 15.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a balloon (b) a mirror (c) a plastic comb (d) dry hair
16. 16.⚖️ 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 paper bit size
17. 17.True or false: a heavy book does not move to a charged comb. (a) True (b) False
18. 18.True or false: a balloon is needed for the static comb. (a) True (b) False
19. 19.True or false: a thin water stream does not move to a charged comb. (a) True (b) False
20. 20.⚖️ 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 hair (b) paper bits picked up (c) number of rubs (d) distance to the paper
21. 21.⚡ You comb dry hair and hold the comb near tiny paper bits. What happens? (a) they turn blue (b) they turn wet (c) the bits jump to it (d) nothing happens
22. 22.⚡ A rubbed comb is held near a brick. What happens? (a) jumps to the comb (b) does not move
23. 23.⚡ Which of these jumps to a charged comb? (a) a brick (b) a heavy book (c) a steel spoon (d) thermocol bits
24. 24.⚡ Which of these does not move to a charged comb? (a) tiny paper bits (b) dry hair (c) a thin water stream (d) a steel spoon
25. 25.📘 Rubbing moves tiny charges. What do we call the charge that builds up? (a) gravity (b) sunlight (c) static electricity (d) magnetism
26. 26.🔮 Predict: you wet the comb before trying again. What happens? (a) it lights up (b) it hardly works (c) it works better (d) it becomes a magnet
27. 27.True or false: a magnet is needed for the static comb. (a) True (b) False
28. 28.🧺 Do we need a magnet for the static comb? (a) not needed (b) needed
29. 29.🧺 Which of these is needed for the static comb? (a) a mirror (b) dry hair (c) a magnet (d) turmeric powder
30. 30.🧺 Which of these is needed for the static comb? (a) turmeric powder (b) yeast (c) a magnet (d) a plastic comb
31. 31.🔍 Which is the odd one out? (a) a steel spoon (b) a brick (c) tiny paper bits (d) a pebble
32. 32.⚖️ 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 measure it (c) we change it
33. 33.True or false: a plastic comb is needed for the static comb. (a) True (b) False
34. 34.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a plastic comb (b) dry hair (c) a magnet (d) tiny paper bits
35. 35.🛟 There is lightning outside. Where is it safest to be? (a) in an open field (b) on a rooftop (c) indoors (d) under a tall tree
36. 36.True or false: a mirror is not needed for the static comb. (a) True (b) False
37. 37.True or false: a magnet is not needed for the static comb. (a) False (b) True
38. 38.🧺 Do we need a mirror for the static comb? (a) needed (b) not needed
39. 39.⚖️ 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) True (b) False
40. 40.🔍 Which is the odd one out? (a) a heavy book (b) thermocol bits (c) tiny paper bits (d) a thin water stream

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