Static Electricity Experiment Worksheet

Science experiments lesson 21: Static electricity: comb and paper bits · Set 254 · 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? True or false: the same hair is kept the same. (a) False (b) True
2. 2.⚡ A rubbed comb is held near puffed rice. What happens? (a) does not move (b) jumps to the comb
3. 3.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) tiny paper bits (b) a plastic comb (c) a mirror (d) dry hair
4. 4.True or false: tiny paper bits jumps to a charged comb. (a) True (b) False
5. 5.🧺 Do we need yeast for the static comb? (a) not needed (b) needed
6. 6.⚡ 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
7. 7.⚖️ 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 keep it the same (c) we change it
8. 8.⚡ A rubbed comb is held near a thin water stream. What happens? (a) jumps to the comb (b) does not move
9. 9.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? Which of these is the one thing we change? (a) paper bits picked up (b) number of rubs (c) the same comb (d) the same hair
10. 10.🧺 Which of these is needed for the static comb? (a) vinegar (b) dry hair (c) a mirror (d) turmeric powder
11. 11.🔮 Predict: you wet the comb before trying again. What happens? (a) it hardly works (b) it lights up (c) it becomes a magnet (d) it works better
12. 12.🔮 Predict: you rub a balloon on dry hair and hold it on a wall. What happens? (a) it falls straight down (b) it sticks for a while (c) it bursts at once (d) it turns into water
13. 13.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? Which of these is kept the same? (a) paper bits picked up (b) the paper bit size (c) number of rubs
14. 14.🔍 Which is the odd one out? (a) a heavy book (b) a pebble (c) a thin water stream (d) a brick
15. 15.⚖️ 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 keep it the same (c) we measure it
16. 16.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? Which of these is what we measure? (a) number of rubs (b) paper bits picked up (c) the paper bit size (d) the same hair
17. 17.🧺 Which of these is needed for the static comb? (a) a mirror (b) yeast (c) tiny paper bits (d) turmeric powder
18. 18.⚡ Which of these does not move to a charged comb? (a) a thin water stream (b) tiny paper bits (c) thermocol bits (d) a heavy book
19. 19.⚡ A rubbed comb is held near a heavy book. What happens? (a) does not move (b) jumps to the comb
20. 20.True or false: a pebble jumps to a charged comb. (a) False (b) True
21. 21.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: distance to the paper is what we measure. (a) True (b) False
22. 22.True or false: a balloon is needed for the static comb. (a) False (b) True
23. 23.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a plastic comb (b) a balloon (c) tiny paper bits (d) vinegar
24. 24.🧺 Do we need tiny paper bits for the static comb? (a) needed (b) not needed
25. 25.📘 Rubbing moves tiny charges. What do we call the charge that builds up? (a) sunlight (b) static electricity (c) gravity (d) magnetism
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 same hair (c) paper bits picked up
27. 27.⚖️ 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
28. 28.🧺 Do we need turmeric powder for the static comb? (a) needed (b) not needed
29. 29.⚡ Why does the comb trick work best on a dry day? (a) damp air leaks charge (b) wet hair is magnetic (c) dry days are noisy (d) water adds charge
30. 30.🛟 Static from a comb is safe. Which electricity must children never play with? (a) paper bits on a comb (b) plug points at home (c) a rubbed balloon (d) a rubbed plastic comb
31. 31.🔮 Predict: a charged comb is held near a thin stream of tap water. What happens? (a) nothing at all (b) the stream bends (c) the water freezes (d) the water stops
32. 32.⚡ A rubbed comb is held near a brick. What happens? (a) jumps to the comb (b) does not move
33. 33.⚖️ 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) True (b) False
34. 34.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a plastic comb (b) tiny paper bits (c) turmeric powder (d) dry hair
35. 35.🔍 Which is the odd one out? (a) thermocol bits (b) a thin water stream (c) dry hair (d) a pebble
36. 36.🛟 There is lightning outside. Where is it safest to be? (a) under a tall tree (b) indoors (c) on a rooftop (d) in an open field
37. 37.True or false: vinegar is not needed for the static comb. (a) False (b) True
38. 38.⚖️ 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) paper bits picked up (c) the same comb
39. 39.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: the same hair is the one thing we change. (a) True (b) False
40. 40.🧺 Which of these is not needed for the static comb? (a) tiny paper bits (b) a balloon (c) a battery cell (d) a plastic comb

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