Static Electricity Experiment Worksheet

Science experiments lesson 21: Static electricity: comb and paper bits · Set 749 · 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.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: number of rubs is kept the same. (a) True (b) False
2. 2.🛟 There is lightning outside. Where is it safest to be? (a) indoors (b) on a rooftop (c) in an open field (d) under a tall tree
3. 3.⚡ A rubbed comb is held near a brick. What happens? (a) jumps to the comb (b) does not move
4. 4.🧺 Do we need a plastic comb for the static comb? (a) not needed (b) needed
5. 5.⚡ Which of these jumps to a charged comb? (a) a heavy book (b) a brick (c) dry hair (d) a pebble
6. 6.⚖️ 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 change it (c) we measure it
7. 7.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a balloon (b) tiny paper bits (c) a plastic comb (d) yeast
8. 8.True or false: a battery cell is not needed for the static comb. (a) False (b) True
9. 9.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) dry hair (b) a mirror (c) a plastic comb (d) tiny paper bits
10. 10.🔮 Predict: you wet the comb before trying again. What happens? (a) it lights up (b) it hardly works (c) it becomes a magnet (d) it works better
11. 11.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a balloon (b) tiny paper bits (c) dry hair (d) turmeric powder
12. 12.True or false: turmeric powder is not needed for the static comb. (a) True (b) False
13. 13.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: paper bits picked up is kept the same. (a) True (b) False
14. 14.True or false: a mirror is needed for the static comb. (a) False (b) True
15. 15.⚡ A rubbed comb is held near a heavy book. What happens? (a) does not move (b) jumps to the comb
16. 16.📘 Rubbing moves tiny charges. What do we call the charge that builds up? (a) magnetism (b) gravity (c) sunlight (d) static electricity
17. 17.⚡ You comb dry hair and hold the comb near tiny paper bits. What happens? (a) they turn wet (b) nothing happens (c) the bits jump to it (d) they turn blue
18. 18.🔍 Which is the odd one out? (a) a heavy book (b) a brick (c) a steel spoon (d) dry hair
19. 19.🔮 Predict: a charged comb is held near a thin stream of tap water. What happens? (a) the stream bends (b) the water stops (c) the water freezes (d) nothing at all
20. 20.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a balloon (b) a battery cell (c) tiny paper bits (d) dry hair
21. 21.🧺 Which of these is needed for the static comb? (a) a mirror (b) a magnet (c) a balloon (d) a battery cell
22. 22.⚡ Which of these does not move to a charged comb? (a) thermocol bits (b) tiny paper bits (c) a pebble (d) dry hair
23. 23.True or false: tiny paper bits does not move to a charged comb. (a) False (b) True
24. 24.True or false: a thin water stream jumps to a charged comb. (a) True (b) False
25. 25.⚡ Why does the comb trick work best on a dry day? (a) damp air leaks charge (b) dry days are noisy (c) wet hair is magnetic (d) water adds charge
26. 26.🧺 Do we need a battery cell for the static comb? (a) needed (b) not needed
27. 27.⚡ Which of these jumps to a charged comb? (a) a steel spoon (b) a heavy book (c) puffed rice (d) a brick
28. 28.⚖️ 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
29. 29.True or false: a magnet is not needed for the static comb. (a) False (b) True
30. 30.🧺 Do we need dry hair for the static comb? (a) needed (b) not needed
31. 31.True or false: puffed rice jumps to a charged comb. (a) True (b) False
32. 32.🛟 Static from a comb is safe. Which electricity must children never play with? (a) plug points at home (b) paper bits on a comb (c) a rubbed balloon (d) a rubbed plastic comb
33. 33.True or false: a steel spoon jumps to a charged comb. (a) False (b) True
34. 34.⚖️ 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 paper bit size (c) the same comb (d) number of rubs
35. 35.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: distance to the paper is what we measure. (a) False (b) True
36. 36.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: the paper bit size is the one thing we change. (a) True (b) False
37. 37.⚡ Which of these jumps to a charged comb? (a) a heavy book (b) a steel spoon (c) tiny paper bits (d) a pebble
38. 38.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: the same hair is what we measure. (a) True (b) False
39. 39.True or false: a balloon is not needed for the static comb. (a) False (b) True
40. 40.⚡ A rubbed comb is held near tiny paper bits. What happens? (a) jumps to the comb (b) does not move

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