Static Electricity Experiment Worksheet

Science experiments lesson 21: Static electricity: comb and paper bits · Set 98 · 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 of these does not move to a charged comb? (a) a steel spoon (b) thermocol bits (c) a thin water stream (d) tiny paper bits
2. 2.🔮 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
3. 3.🔮 Predict: you wet the comb before trying again. What happens? (a) it works better (b) it lights up (c) it becomes a magnet (d) it hardly works
4. 4.⚡ Why does the rubbed comb pull the paper bits? (a) it is sticky (b) it is a magnet (c) it has static charge (d) it is hot
5. 5.🔍 Which is the odd one out? (a) puffed rice (b) a thin water stream (c) thermocol bits (d) a heavy book
6. 6.🔍 Which is the odd one out? (a) dry hair (b) thermocol bits (c) tiny paper bits (d) a brick
7. 7.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a plastic comb (b) tiny paper bits (c) vinegar (d) dry hair
8. 8.⚖️ 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
9. 9.True or false: tiny paper bits jumps to a charged comb. (a) False (b) True
10. 10.🧺 Which of these is needed for the static comb? (a) turmeric powder (b) a magnet (c) yeast (d) a plastic comb
11. 11.True or false: dry hair is not needed for the static comb. (a) True (b) False
12. 12.🧺 Which of these is needed for the static comb? (a) a battery cell (b) turmeric powder (c) a balloon (d) a magnet
13. 13.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? Which of these is kept the same? (a) the same hair (b) paper bits picked up (c) number of rubs
14. 14.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? Which of these is the one thing we change? (a) distance to the paper (b) number of rubs (c) the same hair (d) the paper bit size
15. 15.📘 Rubbing moves tiny charges. What do we call the charge that builds up? (a) magnetism (b) gravity (c) static electricity (d) sunlight
16. 16.🧺 Do we need a plastic comb for the static comb? (a) not needed (b) needed
17. 17.🧺 Which of these is not needed for the static comb? (a) a plastic comb (b) turmeric powder (c) a balloon (d) dry hair
18. 18.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a balloon (b) yeast (c) a plastic comb (d) dry hair
19. 19.🛟 There is lightning outside. Where is it safest to be? (a) under a tall tree (b) on a rooftop (c) indoors (d) in an open field
20. 20.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “the same hair”? (a) we keep it the same (b) we measure it (c) we change it
21. 21.⚖️ 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) the paper bit size (d) number of rubs
22. 22.🛟 Static from a comb is safe. Which electricity must children never play with? (a) a rubbed balloon (b) a rubbed plastic comb (c) paper bits on a comb (d) plug points at home
23. 23.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “the same comb”? (a) we keep it the same (b) we change it (c) we measure it
24. 24.True or false: a steel spoon jumps to a charged comb. (a) False (b) True
25. 25.True or false: a mirror is needed for the static comb. (a) True (b) False
26. 26.True or false: dry hair is needed for the static comb. (a) True (b) False
27. 27.True or false: thermocol bits jumps to a charged comb. (a) False (b) True
28. 28.⚡ A rubbed comb is held near a heavy book. What happens? (a) does not move (b) jumps to the comb
29. 29.⚡ Why does the comb trick work best on a dry day? (a) dry days are noisy (b) damp air leaks charge (c) water adds charge (d) wet hair is magnetic
30. 30.True or false: puffed rice does not move to a charged comb. (a) False (b) True
31. 31.⚖️ 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
32. 32.⚡ Which big natural spark is caused by static electricity? (a) the wind (b) a rainbow (c) dew (d) lightning
33. 33.True or false: puffed rice jumps to a charged comb. (a) False (b) True
34. 34.🧺 Which of these is needed for the static comb? (a) a mirror (b) a magnet (c) dry hair (d) turmeric powder
35. 35.⚡ Which of these jumps to a charged comb? (a) dry hair (b) a pebble (c) a steel spoon (d) a brick
36. 36.⚡ Which of these does not move to a charged comb? (a) tiny paper bits (b) a pebble (c) puffed rice (d) a thin water stream
37. 37.⚖️ 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
38. 38.⚡ Which of these jumps to a charged comb? (a) a pebble (b) a heavy book (c) a brick (d) tiny paper bits
39. 39.⚡ Which of these does not move to a charged comb? (a) thermocol bits (b) a thin water stream (c) a heavy book (d) puffed rice
40. 40.🧺 Do we need a balloon for the static comb? (a) not needed (b) needed

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