Static Electricity Experiment Worksheet

Science experiments lesson 21: Static electricity: comb and paper bits · Set 231 · 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 big natural spark is caused by static electricity? (a) dew (b) lightning (c) the wind (d) a rainbow
2. 2.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) vinegar (b) a balloon (c) tiny paper bits (d) dry hair
3. 3.⚡ Which of these does not move to a charged comb? (a) a thin water stream (b) thermocol bits (c) tiny paper bits (d) a pebble
4. 4.🔮 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
5. 5.🔍 Which is the odd one out? (a) a thin water stream (b) a heavy book (c) thermocol bits (d) dry hair
6. 6.⚡ A rubbed comb is held near puffed rice. What happens? (a) jumps to the comb (b) does not move
7. 7.🧺 Which of these is needed for the static comb? (a) turmeric powder (b) dry hair (c) a mirror (d) a battery cell
8. 8.⚡ A rubbed comb is held near a steel spoon. What happens? (a) jumps to the comb (b) does not move
9. 9.🧺 Do we need yeast for the static comb? (a) not needed (b) needed
10. 10.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “number of rubs”? (a) we change it (b) we measure it (c) we keep it the same
11. 11.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “the same comb”? (a) we measure it (b) we change it (c) we keep it the same
12. 12.⚖️ 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) the same hair (c) number of rubs (d) the same comb
13. 13.⚡ Which of these jumps to a charged comb? (a) a brick (b) dry hair (c) a heavy book (d) a pebble
14. 14.⚡ A rubbed comb is held near a pebble. What happens? (a) does not move (b) jumps to the comb
15. 15.⚡ Which of these jumps to a charged comb? (a) a brick (b) a pebble (c) a steel spoon (d) puffed rice
16. 16.True or false: a thin water stream does not move to a charged comb. (a) True (b) False
17. 17.True or false: a plastic comb is needed for the static comb. (a) False (b) True
18. 18.⚡ Which of these jumps to a charged comb? (a) a heavy book (b) a pebble (c) a brick (d) tiny paper bits
19. 19.🛟 There is lightning outside. Where is it safest to be? (a) in an open field (b) under a tall tree (c) indoors (d) on a rooftop
20. 20.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: the paper bit size is kept the same. (a) False (b) True
21. 21.🧺 Which of these is needed for the static comb? (a) a plastic comb (b) yeast (c) a mirror (d) a magnet
22. 22.True or false: puffed rice jumps to a charged comb. (a) True (b) False
23. 23.⚡ A rubbed comb is held near thermocol bits. What happens? (a) does not move (b) jumps to the comb
24. 24.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? Which of these is what we measure? (a) distance to the paper (b) the same comb (c) paper bits picked up (d) number of rubs
25. 25.True or false: a pebble jumps to a charged comb. (a) False (b) True
26. 26.True or false: tiny paper bits is needed for the static comb. (a) False (b) True
27. 27.⚡ A rubbed comb is held near a thin water stream. What happens? (a) jumps to the comb (b) does not move
28. 28.🛟 Static from a comb is safe. Which electricity must children never play with? (a) a rubbed plastic comb (b) paper bits on a comb (c) a rubbed balloon (d) plug points at home
29. 29.⚡ You comb dry hair and hold the comb near tiny paper bits. What happens? (a) nothing happens (b) the bits jump to it (c) they turn wet (d) they turn blue
30. 30.🔍 Which is the odd one out? (a) a pebble (b) dry hair (c) thermocol bits (d) puffed rice
31. 31.🔮 Predict: you wet the comb before trying again. What happens? (a) it becomes a magnet (b) it lights up (c) it works better (d) it hardly works
32. 32.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: number of rubs is what we measure. (a) False (b) True
33. 33.True or false: a thin water stream jumps to a charged comb. (a) True (b) False
34. 34.⚖️ 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
35. 35.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) dry hair (b) tiny paper bits (c) a magnet (d) a plastic comb
36. 36.🧺 Do we need a balloon for the static comb? (a) not needed (b) needed
37. 37.True or false: tiny paper bits is not needed for the static comb. (a) False (b) True
38. 38.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a plastic comb (b) a balloon (c) yeast (d) dry hair
39. 39.⚡ Why does the rubbed comb pull the paper bits? (a) it is sticky (b) it has static charge (c) it is hot (d) it is a magnet
40. 40.⚖️ 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

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