Static Electricity Experiment Worksheet

Science experiments lesson 21: Static electricity: comb and paper bits · Set 142 · 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? What do we do with “distance to the paper”? (a) we change it (b) we measure it (c) we keep it the same
2. 2.🧺 Which of these is not needed for the static comb? (a) a plastic comb (b) tiny paper bits (c) a balloon (d) yeast
3. 3.⚖️ 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
4. 4.🔍 Which is the odd one out? (a) a brick (b) a pebble (c) a heavy book (d) puffed rice
5. 5.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) dry hair (b) a plastic comb (c) tiny paper bits (d) a mirror
6. 6.True or false: a battery cell is needed for the static comb. (a) True (b) False
7. 7.⚖️ 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
8. 8.⚡ Which of these jumps to a charged comb? (a) a heavy book (b) a brick (c) tiny paper bits (d) a pebble
9. 9.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “the same comb”? (a) we change it (b) we keep it the same (c) we measure it
10. 10.⚡ Which of these jumps to a charged comb? (a) a brick (b) a steel spoon (c) dry hair (d) a pebble
11. 11.🧺 Which of these is needed for the static comb? (a) a magnet (b) a mirror (c) yeast (d) tiny paper bits
12. 12.🧺 Do we need a battery cell for the static comb? (a) needed (b) not needed
13. 13.⚡ Why does the rubbed comb pull the paper bits? (a) it is a magnet (b) it is sticky (c) it has static charge (d) it is hot
14. 14.⚖️ 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
15. 15.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a plastic comb (b) a balloon (c) a magnet (d) tiny paper bits
16. 16.🧺 Do we need vinegar for the static comb? (a) not needed (b) needed
17. 17.⚡ You comb dry hair and hold the comb near tiny paper bits. What happens? (a) they turn blue (b) the bits jump to it (c) nothing happens (d) they turn wet
18. 18.🧺 Do we need tiny paper bits for the static comb? (a) needed (b) not needed
19. 19.True or false: tiny paper bits does not move to a charged comb. (a) False (b) True
20. 20.🧺 Do we need yeast for the static comb? (a) needed (b) not needed
21. 21.True or false: a pebble jumps to a charged comb. (a) True (b) False
22. 22.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a plastic comb (b) a balloon (c) turmeric powder (d) tiny paper bits
23. 23.⚡ Which of these jumps to a charged comb? (a) thermocol bits (b) a brick (c) a steel spoon (d) a heavy book
24. 24.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: number of rubs is the one thing we change. (a) False (b) True
25. 25.⚡ 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
26. 26.True or false: a steel spoon jumps to a charged comb. (a) False (b) True
27. 27.🔮 Predict: a charged comb is held near a thin stream of tap water. What happens? (a) nothing at all (b) the water stops (c) the water freezes (d) the stream bends
28. 28.True or false: dry hair jumps to a charged comb. (a) True (b) False
29. 29.🛟 Static from a comb is safe. Which electricity must children never play with? (a) a rubbed balloon (b) a rubbed plastic comb (c) plug points at home (d) paper bits on a comb
30. 30.⚡ Which of these does not move to a charged comb? (a) thermocol bits (b) tiny paper bits (c) a pebble (d) puffed rice
31. 31.⚡ A rubbed comb is held near thermocol bits. What happens? (a) jumps to the comb (b) does not move
32. 32.⚡ A rubbed comb is held near a heavy book. What happens? (a) jumps to the comb (b) does not move
33. 33.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: the same comb is what we measure. (a) True (b) False
34. 34.🔍 Which is the odd one out? (a) a heavy book (b) a brick (c) thermocol bits (d) a steel spoon
35. 35.True or false: dry hair is needed for the static comb. (a) False (b) True
36. 36.📘 Rubbing moves tiny charges. What do we call the charge that builds up? (a) magnetism (b) static electricity (c) sunlight (d) gravity
37. 37.🔍 Which is the odd one out? (a) a pebble (b) tiny paper bits (c) a steel spoon (d) a brick
38. 38.True or false: turmeric powder is not needed for the static comb. (a) False (b) True
39. 39.🧺 Do we need dry hair for the static comb? (a) needed (b) not needed
40. 40.🛟 There is lightning outside. Where is it safest to be? (a) on a rooftop (b) under a tall tree (c) indoors (d) in an open field

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