Static Electricity Experiment Worksheet

Science experiments lesson 21: Static electricity: comb and paper bits · Set 315 · 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? Which of these is what we measure? (a) distance to the paper (b) paper bits picked up (c) the same comb (d) number of rubs
2. 2.🛟 There is lightning outside. Where is it safest to be? (a) under a tall tree (b) indoors (c) in an open field (d) on a rooftop
3. 3.🔮 Predict: a charged comb is held near a thin stream of tap water. What happens? (a) the water freezes (b) the stream bends (c) nothing at all (d) the water stops
4. 4.🔮 Predict: you rub a balloon on dry hair and hold it on a wall. What happens? (a) it turns into water (b) it falls straight down (c) it bursts at once (d) it sticks for a while
5. 5.🧺 Do we need a plastic comb for the static comb? (a) not needed (b) needed
6. 6.🧺 Which of these is not needed for the static comb? (a) a balloon (b) a mirror (c) dry hair (d) a plastic comb
7. 7.🔍 Which is the odd one out? (a) thermocol bits (b) a steel spoon (c) a heavy book (d) a pebble
8. 8.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: the same hair is kept the same. (a) False (b) True
9. 9.🧺 Which of these is not needed for the static comb? (a) a plastic comb (b) turmeric powder (c) tiny paper bits (d) dry hair
10. 10.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? Which of these is kept the same? (a) the paper bit size (b) number of rubs (c) paper bits picked up
11. 11.🧺 Do we need a battery cell for the static comb? (a) needed (b) not needed
12. 12.🧺 Do we need a balloon for the static comb? (a) not needed (b) needed
13. 13.🛟 Static from a comb is safe. Which electricity must children never play with? (a) a rubbed plastic comb (b) plug points at home (c) paper bits on a comb (d) a rubbed balloon
14. 14.True or false: a steel spoon does not move to a charged comb. (a) False (b) True
15. 15.🧺 Do we need a mirror for the static comb? (a) needed (b) not needed
16. 16.🧺 Which of these is not needed for the static comb? (a) a plastic comb (b) tiny paper bits (c) a battery cell (d) a balloon
17. 17.True or false: a plastic comb is not needed for the static comb. (a) True (b) False
18. 18.🧺 Do we need vinegar for the static comb? (a) not needed (b) needed
19. 19.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “paper bits picked up”? (a) we change it (b) we measure it (c) we keep it the same
20. 20.🔍 Which is the odd one out? (a) tiny paper bits (b) a pebble (c) a heavy book (d) a steel spoon
21. 21.⚖️ 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
22. 22.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a balloon (b) a plastic comb (c) tiny paper bits (d) yeast
23. 23.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? Which of these is kept the same? (a) the same comb (b) number of rubs (c) paper bits picked up
24. 24.True or false: a balloon is not needed for the static comb. (a) True (b) False
25. 25.True or false: turmeric powder is needed for the static comb. (a) False (b) True
26. 26.🧺 Do we need tiny paper bits for the static comb? (a) not needed (b) needed
27. 27.⚖️ 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
28. 28.True or false: a steel spoon jumps to a charged comb. (a) True (b) False
29. 29.True or false: a thin water stream jumps to a charged comb. (a) True (b) False
30. 30.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: the paper bit size is the one thing we change. (a) False (b) True
31. 31.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) dry hair (b) a plastic comb (c) a mirror (d) tiny paper bits
32. 32.⚡ A rubbed comb is held near a pebble. What happens? (a) jumps to the comb (b) does not move
33. 33.⚡ Why does the rubbed comb pull the paper bits? (a) it is a magnet (b) it is hot (c) it has static charge (d) it is sticky
34. 34.⚖️ 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 measure it (c) we keep it the same
35. 35.🔍 Which is the odd one out? (a) tiny paper bits (b) thermocol bits (c) a thin water stream (d) a heavy book
36. 36.True or false: vinegar is not needed for the static comb. (a) True (b) False
37. 37.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: distance to the paper is the one thing we change. (a) False (b) True
38. 38.📘 Rubbing moves tiny charges. What do we call the charge that builds up? (a) sunlight (b) gravity (c) static electricity (d) magnetism
39. 39.🧺 Which of these is not needed for the static comb? (a) dry hair (b) a magnet (c) a plastic comb (d) tiny paper bits
40. 40.⚡ Which of these does not move to a charged comb? (a) a thin water stream (b) a heavy book (c) tiny paper bits (d) dry hair

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