Static Electricity Experiment Worksheet

Science experiments lesson 21: Static electricity: comb and paper bits · Set 452 · 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.⚡ Which of these jumps to a charged comb? (a) a brick (b) a pebble (c) a heavy book (d) tiny paper bits
2. 2.🧺 Which of these is needed for the static comb? (a) dry hair (b) vinegar (c) a magnet (d) a mirror
3. 3.⚖️ 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
4. 4.True or false: dry hair is needed for the static comb. (a) True (b) False
5. 5.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) tiny paper bits (b) a battery cell (c) a balloon (d) dry hair
6. 6.🧺 Which of these is not needed for the static comb? (a) a mirror (b) dry hair (c) a balloon (d) a plastic comb
7. 7.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a magnet (b) a balloon (c) a plastic comb (d) tiny paper bits
8. 8.True or false: puffed rice does not move to a charged comb. (a) True (b) False
9. 9.⚡ Which of these jumps to a charged comb? (a) a pebble (b) a steel spoon (c) a heavy book (d) a thin water stream
10. 10.⚡ Which of these jumps to a charged comb? (a) puffed rice (b) a pebble (c) a heavy book (d) a brick
11. 11.⚡ Which of these does not move to a charged comb? (a) thermocol bits (b) a thin water stream (c) a brick (d) puffed rice
12. 12.🛟 Static from a comb is safe. Which electricity must children never play with? (a) paper bits on a comb (b) a rubbed plastic comb (c) a rubbed balloon (d) plug points at home
13. 13.🧺 Do we need turmeric powder for the static comb? (a) needed (b) not needed
14. 14.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? Which of these is what we measure? (a) the same hair (b) paper bits picked up (c) the paper bit size (d) distance to the paper
15. 15.🔍 Which is the odd one out? (a) a heavy book (b) a pebble (c) a steel spoon (d) puffed rice
16. 16.⚡ Why does the rubbed comb pull the paper bits? (a) it is hot (b) it is a magnet (c) it has static charge (d) it is sticky
17. 17.🛟 There is lightning outside. Where is it safest to be? (a) under a tall tree (b) in an open field (c) indoors (d) on a rooftop
18. 18.⚡ A rubbed comb is held near a brick. What happens? (a) does not move (b) jumps to the comb
19. 19.⚖️ 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 keep it the same (c) we change it
20. 20.⚖️ 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) the same hair (c) the same comb (d) number of rubs
21. 21.🔮 Predict: a charged comb is held near a thin stream of tap water. What happens? (a) the water freezes (b) the water stops (c) the stream bends (d) nothing at all
22. 22.🧺 Which of these is needed for the static comb? (a) a mirror (b) tiny paper bits (c) vinegar (d) a magnet
23. 23.True or false: a mirror is not needed for the static comb. (a) False (b) True
24. 24.⚡ Which of these does not move to a charged comb? (a) a pebble (b) tiny paper bits (c) dry hair (d) thermocol bits
25. 25.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a mirror (b) a balloon (c) dry hair (d) tiny paper bits
26. 26.⚖️ 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
27. 27.🧺 Do we need vinegar for the static comb? (a) needed (b) not needed
28. 28.🧺 Do we need a mirror for the static comb? (a) not needed (b) needed
29. 29.🔮 Predict: you rub a balloon on dry hair and hold it on a wall. What happens? (a) it turns into water (b) it bursts at once (c) it falls straight down (d) it sticks for a while
30. 30.True or false: a brick does not move to a charged comb. (a) True (b) False
31. 31.⚡ Which of these jumps to a charged comb? (a) a brick (b) a pebble (c) dry hair (d) a heavy book
32. 32.⚡ Why does the comb trick work best on a dry day? (a) wet hair is magnetic (b) dry days are noisy (c) damp air leaks charge (d) water adds charge
33. 33.🧺 Do we need a plastic comb for the static comb? (a) needed (b) not needed
34. 34.🔍 Which is the odd one out? (a) a thin water stream (b) dry hair (c) a steel spoon (d) puffed rice
35. 35.🧺 Which of these is not needed for the static comb? (a) a plastic comb (b) vinegar (c) tiny paper bits (d) a balloon
36. 36.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “paper bits picked up”? (a) we keep it the same (b) we change it (c) we measure it
37. 37.⚡ 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
38. 38.True or false: tiny paper bits jumps to a charged comb. (a) True (b) False
39. 39.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “the same hair”? (a) we measure it (b) we keep it the same (c) we change it
40. 40.🧺 Do we need a magnet for the static comb? (a) not needed (b) needed

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