Static Electricity Experiment Worksheet

Science experiments lesson 21: Static electricity: comb and paper bits · Set 335 · 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 comb trick work best on a dry day? (a) water adds charge (b) damp air leaks charge (c) wet hair is magnetic (d) dry days are noisy
2. 2.🧺 Which of these is needed for the static comb? (a) a battery cell (b) a balloon (c) vinegar (d) yeast
3. 3.⚖️ 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) number of rubs (c) the paper bit size (d) distance to the paper
4. 4.🔍 Which is the odd one out? (a) a steel spoon (b) tiny paper bits (c) thermocol bits (d) dry hair
5. 5.⚡ Which of these does not move to a charged comb? (a) a steel spoon (b) tiny paper bits (c) thermocol bits (d) puffed rice
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.True or false: a mirror is not needed for the static comb. (a) True (b) False
8. 8.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: distance to the paper is the one thing we change. (a) True (b) False
9. 9.🔮 Predict: a charged comb is held near a thin stream of tap water. What happens? (a) nothing at all (b) the stream bends (c) the water freezes (d) the water stops
10. 10.🔍 Which is the odd one out? (a) a pebble (b) thermocol bits (c) tiny paper bits (d) dry hair
11. 11.⚖️ 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
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 falls straight down (c) it sticks for a while (d) it bursts at once
13. 13.🧺 Do we need vinegar for the static comb? (a) not needed (b) needed
14. 14.True or false: a steel spoon jumps to a charged comb. (a) True (b) False
15. 15.True or false: tiny paper bits is not needed for the static comb. (a) True (b) False
16. 16.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a plastic comb (b) tiny paper bits (c) yeast (d) dry hair
17. 17.⚡ Which of these jumps to a charged comb? (a) a brick (b) a steel spoon (c) a heavy book (d) puffed rice
18. 18.⚖️ 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) paper bits picked up (d) distance to the paper
19. 19.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) dry hair (b) a magnet (c) tiny paper bits (d) a plastic comb
20. 20.📘 Rubbing moves tiny charges. What do we call the charge that builds up? (a) gravity (b) magnetism (c) sunlight (d) static electricity
21. 21.True or false: puffed rice jumps to a charged comb. (a) False (b) True
22. 22.⚡ A rubbed comb is held near a steel spoon. What happens? (a) does not move (b) jumps to the comb
23. 23.🔍 Which is the odd one out? (a) a pebble (b) a thin water stream (c) a steel spoon (d) a brick
24. 24.🔍 Which is the odd one out? (a) a thin water stream (b) a brick (c) puffed rice (d) tiny paper bits
25. 25.True or false: a steel spoon does not move to a charged comb. (a) False (b) True
26. 26.🔮 Predict: you wet the comb before trying again. What happens? (a) it hardly works (b) it becomes a magnet (c) it works better (d) it lights up
27. 27.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a plastic comb (b) a battery cell (c) a balloon (d) dry hair
28. 28.⚡ A rubbed comb is held near tiny paper bits. What happens? (a) does not move (b) jumps to the comb
29. 29.⚖️ 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 same hair
30. 30.⚡ Which of these does not move to a charged comb? (a) dry hair (b) thermocol bits (c) puffed rice (d) a heavy book
31. 31.🧺 Do we need dry hair for the static comb? (a) needed (b) not needed
32. 32.🧺 Do we need a magnet for the static comb? (a) not needed (b) needed
33. 33.⚡ A rubbed comb is held near dry hair. What happens? (a) does not move (b) jumps to the comb
34. 34.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? Which of these is kept the same? (a) the same comb (b) number of rubs (c) paper bits picked up
35. 35.⚡ A rubbed comb is held near a heavy book. What happens? (a) jumps to the comb (b) does not move
36. 36.True or false: tiny paper bits does not move to a charged comb. (a) False (b) True
37. 37.⚡ Which big natural spark is caused by static electricity? (a) lightning (b) the wind (c) dew (d) a rainbow
38. 38.🛟 There is lightning outside. Where is it safest to be? (a) on a rooftop (b) indoors (c) in an open field (d) under a tall tree
39. 39.🧺 Which of these is needed for the static comb? (a) tiny paper bits (b) yeast (c) vinegar (d) turmeric powder
40. 40.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: number of rubs is kept the same. (a) False (b) True

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