Static Electricity Experiment Worksheet

Science experiments lesson 21: Static electricity: comb and paper bits · Set 357 · 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.True or false: tiny paper bits does not move to a charged comb. (a) True (b) False
2. 2.⚖️ 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) distance to the paper (c) number of rubs (d) the paper bit size
3. 3.⚡ Why does the comb trick work best on a dry day? (a) water adds charge (b) damp air leaks charge (c) dry days are noisy (d) wet hair is magnetic
4. 4.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) tiny paper bits (b) dry hair (c) turmeric powder (d) a plastic comb
5. 5.🛟 Static from a comb is safe. Which electricity must children never play with? (a) plug points at home (b) a rubbed balloon (c) paper bits on a comb (d) a rubbed plastic comb
6. 6.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? Which of these is the one thing we change? (a) the paper bit size (b) distance to the paper (c) number of rubs (d) the same hair
7. 7.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a battery cell (b) tiny paper bits (c) dry hair (d) a plastic comb
8. 8.🧺 Do we need vinegar for the static comb? (a) not needed (b) needed
9. 9.🧺 Which of these is needed for the static comb? (a) yeast (b) vinegar (c) a plastic comb (d) turmeric powder
10. 10.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? Which of these is kept the same? (a) distance to the paper (b) number of rubs (c) paper bits picked up
11. 11.🔍 Which is the odd one out? (a) a heavy book (b) a brick (c) tiny paper bits (d) a steel spoon
12. 12.🔮 Predict: a charged comb is held near a thin stream of tap water. What happens? (a) the water freezes (b) the water stops (c) nothing at all (d) the stream bends
13. 13.⚡ A rubbed comb is held near a brick. What happens? (a) jumps to the comb (b) does not move
14. 14.📘 Rubbing moves tiny charges. What do we call the charge that builds up? (a) sunlight (b) magnetism (c) static electricity (d) gravity
15. 15.🧺 Which of these is not needed for the static comb? (a) a balloon (b) dry hair (c) a plastic comb (d) turmeric powder
16. 16.True or false: a heavy book does not move to a charged comb. (a) True (b) False
17. 17.⚡ Which big natural spark is caused by static electricity? (a) the wind (b) dew (c) a rainbow (d) lightning
18. 18.⚖️ 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
19. 19.⚡ A rubbed comb is held near a pebble. What happens? (a) jumps to the comb (b) does not move
20. 20.🔮 Predict: you wet the comb before trying again. What happens? (a) it becomes a magnet (b) it hardly works (c) it lights up (d) it works better
21. 21.🧺 Which of these is not needed for the static comb? (a) a plastic comb (b) vinegar (c) dry hair (d) tiny paper bits
22. 22.True or false: a brick does not move to a charged comb. (a) True (b) False
23. 23.🧺 Which of these is needed for the static comb? (a) a mirror (b) a balloon (c) vinegar (d) turmeric powder
24. 24.🔍 Which is the odd one out? (a) a thin water stream (b) dry hair (c) a pebble (d) thermocol bits
25. 25.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a balloon (b) a plastic comb (c) vinegar (d) tiny paper bits
26. 26.🔮 Predict: you rub a balloon on dry hair and hold it on a wall. What happens? (a) it bursts at once (b) it turns into water (c) it sticks for a while (d) it falls straight down
27. 27.⚖️ 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) True (b) False
28. 28.True or false: dry hair does not move to a charged comb. (a) True (b) False
29. 29.True or false: puffed rice jumps to a charged comb. (a) True (b) False
30. 30.⚡ A rubbed comb is held near a thin water stream. What happens? (a) does not move (b) jumps to the comb
31. 31.True or false: a heavy book jumps to a charged comb. (a) False (b) True
32. 32.⚡ Which of these jumps to a charged comb? (a) a brick (b) a heavy book (c) a steel spoon (d) puffed rice
33. 33.⚖️ 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
34. 34.🧺 Do we need a battery cell for the static comb? (a) needed (b) not needed
35. 35.⚡ A rubbed comb is held near dry hair. What happens? (a) does not move (b) jumps to the comb
36. 36.🔍 Which is the odd one out? (a) dry hair (b) thermocol bits (c) a steel spoon (d) tiny paper bits
37. 37.🛟 There is lightning outside. Where is it safest to be? (a) in an open field (b) indoors (c) on a rooftop (d) under a tall tree
38. 38.⚖️ 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 change it (c) we keep it the same
39. 39.True or false: turmeric powder is not needed for the static comb. (a) False (b) True
40. 40.⚡ Which of these jumps to a charged comb? (a) a pebble (b) a heavy book (c) a thin water stream (d) a brick

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