Static Electricity Experiment Worksheet

Science experiments lesson 21: Static electricity: comb and paper bits · Set 731 · 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.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a plastic comb (b) dry hair (c) a balloon (d) a mirror
3. 3.🧺 Do we need a plastic comb for the static comb? (a) not needed (b) needed
4. 4.⚡ Which of these does not move to a charged comb? (a) tiny paper bits (b) a steel spoon (c) dry hair (d) thermocol bits
5. 5.🧺 Do we need tiny paper bits for the static comb? (a) needed (b) not needed
6. 6.🔍 Which is the odd one out? (a) a pebble (b) a thin water stream (c) a heavy book (d) a brick
7. 7.⚖️ 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
8. 8.🔮 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
9. 9.⚖️ 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
10. 10.True or false: a thin water stream jumps to a charged comb. (a) False (b) True
11. 11.🧺 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 battery cell
12. 12.🧺 Which of these is needed for the static comb? (a) a balloon (b) a magnet (c) a mirror (d) yeast
13. 13.🔍 Which is the odd one out? (a) tiny paper bits (b) a thin water stream (c) dry hair (d) a pebble
14. 14.⚖️ 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 comb (c) number of rubs (d) the same hair
15. 15.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) tiny paper bits (b) vinegar (c) dry hair (d) a balloon
16. 16.🔮 Predict: you wet the comb before trying again. What happens? (a) it works better (b) it lights up (c) it hardly works (d) it becomes a magnet
17. 17.⚖️ 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
18. 18.🔍 Which is the odd one out? (a) dry hair (b) thermocol bits (c) a brick (d) a thin water stream
19. 19.⚖️ 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
20. 20.True or false: vinegar is not needed for the static comb. (a) True (b) False
21. 21.True or false: turmeric powder is needed for the static comb. (a) False (b) True
22. 22.🧺 Do we need a magnet for the static comb? (a) needed (b) not needed
23. 23.⚖️ 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 same hair (c) number of rubs (d) the same comb
24. 24.🔍 Which is the odd one out? (a) dry hair (b) a heavy book (c) thermocol bits (d) tiny paper bits
25. 25.🛟 Static from a comb is safe. Which electricity must children never play with? (a) a rubbed balloon (b) a rubbed plastic comb (c) paper bits on a comb (d) plug points at home
26. 26.🔍 Which is the odd one out? (a) a heavy book (b) a pebble (c) puffed rice (d) a brick
27. 27.🧺 Which of these is needed for the static comb? (a) a magnet (b) a plastic comb (c) yeast (d) vinegar
28. 28.🧺 Which of these is needed for the static comb? (a) a magnet (b) tiny paper bits (c) a mirror (d) a battery cell
29. 29.True or false: dry hair is needed for the static comb. (a) False (b) True
30. 30.⚡ A rubbed comb is held near a brick. What happens? (a) does not move (b) jumps to the comb
31. 31.⚡ Why does the rubbed comb pull the paper bits? (a) it has static charge (b) it is a magnet (c) it is hot (d) it is sticky
32. 32.⚡ Which of these does not move to a charged comb? (a) a heavy book (b) dry hair (c) tiny paper bits (d) puffed rice
33. 33.True or false: yeast is not needed for the static comb. (a) False (b) True
34. 34.True or false: a pebble does not move to a charged comb. (a) False (b) True
35. 35.True or false: tiny paper bits is not needed for the static comb. (a) False (b) True
36. 36.🛟 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
37. 37.🔍 Which is the odd one out? (a) a steel spoon (b) a heavy book (c) a pebble (d) thermocol bits
38. 38.⚡ A rubbed comb is held near a steel spoon. What happens? (a) jumps to the comb (b) does not move
39. 39.⚡ Which of these jumps to a charged comb? (a) a heavy book (b) a steel spoon (c) a pebble (d) a thin water stream
40. 40.⚡ Which of these jumps to a charged comb? (a) a heavy book (b) a steel spoon (c) thermocol bits (d) a pebble

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