Static Electricity Experiment Worksheet

Science experiments lesson 21: Static electricity: comb and paper bits · Set 163 · 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.🛟 Static from a comb is safe. Which electricity must children never play with? (a) paper bits on a comb (b) a rubbed balloon (c) a rubbed plastic comb (d) plug points at home
2. 2.🧺 Which of these is not needed for the static comb? (a) dry hair (b) a magnet (c) a plastic comb (d) tiny paper bits
3. 3.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “paper bits picked up”? (a) we measure it (b) we change it (c) we keep it the same
4. 4.🧺 Do we need a magnet for the static comb? (a) not needed (b) needed
5. 5.⚡ A rubbed comb is held near a brick. What happens? (a) does not move (b) jumps to the comb
6. 6.⚡ Which of these jumps to a charged comb? (a) a steel spoon (b) a pebble (c) a heavy book (d) dry hair
7. 7.True or false: a mirror is needed for the static comb. (a) False (b) True
8. 8.🛟 There is lightning outside. Where is it safest to be? (a) indoors (b) in an open field (c) on a rooftop (d) under a tall tree
9. 9.⚡ A rubbed comb is held near dry hair. What happens? (a) does not move (b) jumps to the comb
10. 10.🧺 Do we need a battery cell for the static comb? (a) not needed (b) needed
11. 11.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: the same comb is kept the same. (a) False (b) True
12. 12.⚡ A rubbed comb is held near tiny paper bits. What happens? (a) does not move (b) jumps to the comb
13. 13.🔍 Which is the odd one out? (a) a heavy book (b) a pebble (c) dry hair (d) a brick
14. 14.True or false: a plastic comb is needed for the static comb. (a) True (b) False
15. 15.True or false: tiny paper bits does not move to a charged comb. (a) False (b) True
16. 16.⚖️ 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
17. 17.⚡ Why does the comb trick work best on a dry day? (a) dry days are noisy (b) water adds charge (c) damp air leaks charge (d) wet hair is magnetic
18. 18.⚖️ 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
19. 19.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) tiny paper bits (b) yeast (c) a plastic comb (d) dry hair
20. 20.🔮 Predict: a charged comb is held near a thin stream of tap water. What happens? (a) the stream bends (b) nothing at all (c) the water stops (d) the water freezes
21. 21.⚡ A rubbed comb is held near a heavy book. What happens? (a) jumps to the comb (b) does not move
22. 22.True or false: a steel spoon jumps to a charged comb. (a) True (b) False
23. 23.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: paper bits picked up is the one thing we change. (a) False (b) True
24. 24.🧺 Which of these is not needed for the static comb? (a) dry hair (b) a battery cell (c) a plastic comb (d) tiny paper bits
25. 25.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “the same hair”? (a) we change it (b) we keep it the same (c) we measure it
26. 26.⚖️ 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) the paper bit size (c) paper bits picked up
27. 27.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) dry hair (b) tiny paper bits (c) vinegar (d) a balloon
28. 28.⚖️ 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) paper bits picked up
29. 29.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: number of rubs is what we measure. (a) True (b) False
30. 30.⚡ A rubbed comb is held near a thin water stream. What happens? (a) jumps to the comb (b) does not move
31. 31.True or false: vinegar is needed for the static comb. (a) True (b) False
32. 32.True or false: dry hair jumps to a charged comb. (a) True (b) False
33. 33.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “the paper bit size”? (a) we change it (b) we keep it the same (c) we measure it
34. 34.⚡ Why does the rubbed comb pull the paper bits? (a) it is hot (b) it is a magnet (c) it is sticky (d) it has static charge
35. 35.🧺 Which of these is not needed for the static comb? (a) tiny paper bits (b) dry hair (c) a mirror (d) a plastic comb
36. 36.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: the same comb is the one thing we change. (a) True (b) False
37. 37.True or false: yeast is needed for the static comb. (a) False (b) True
38. 38.🧺 Do we need a mirror for the static comb? (a) not needed (b) needed
39. 39.⚡ You comb dry hair and hold the comb near tiny paper bits. What happens? (a) the bits jump to it (b) they turn wet (c) they turn blue (d) nothing happens
40. 40.⚡ Which of these jumps to a charged comb? (a) a steel spoon (b) a pebble (c) a brick (d) a thin water stream

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