Static Electricity Experiment Worksheet

Science experiments lesson 21: Static electricity: comb and paper bits · Set 289 · 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 kept the same? (a) number of rubs (b) paper bits picked up (c) the paper bit size
2. 2.🧺 Which of these is needed for the static comb? (a) a mirror (b) vinegar (c) tiny paper bits (d) a battery cell
3. 3.🔍 Which is the odd one out? (a) a steel spoon (b) a thin water stream (c) puffed rice (d) tiny paper bits
4. 4.🛟 There is lightning outside. Where is it safest to be? (a) indoors (b) under a tall tree (c) on a rooftop (d) in an open field
5. 5.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a magnet (b) a balloon (c) dry hair (d) a plastic comb
6. 6.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “the paper bit size”? (a) we keep it the same (b) we change it (c) we measure it
7. 7.True or false: a mirror is not needed for the static comb. (a) False (b) True
8. 8.🔮 Predict: a charged comb is held near a thin stream of tap water. What happens? (a) the water stops (b) nothing at all (c) the stream bends (d) the water freezes
9. 9.True or false: a magnet is needed for the static comb. (a) True (b) False
10. 10.🛟 Static from a comb is safe. Which electricity must children never play with? (a) a rubbed balloon (b) a rubbed plastic comb (c) plug points at home (d) paper bits on a comb
11. 11.🧺 Which of these is not needed for the static comb? (a) a mirror (b) tiny paper bits (c) a balloon (d) a plastic comb
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) the same hair (b) the same comb (c) number of rubs (d) the paper bit size
13. 13.⚖️ 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
14. 14.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: number of rubs is kept the same. (a) False (b) True
15. 15.⚖️ 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 change it (c) we keep it the same
16. 16.📘 Rubbing moves tiny charges. What do we call the charge that builds up? (a) magnetism (b) sunlight (c) static electricity (d) gravity
17. 17.⚡ Why does the rubbed comb pull the paper bits? (a) it is sticky (b) it has static charge (c) it is a magnet (d) it is hot
18. 18.⚖️ 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
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.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) dry hair (b) yeast (c) a balloon (d) a plastic comb
21. 21.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: the same hair is kept the same. (a) True (b) False
22. 22.⚡ Why does the comb trick work best on a dry day? (a) dry days are noisy (b) damp air leaks charge (c) water adds charge (d) wet hair is magnetic
23. 23.🔮 Predict: you rub a balloon on dry hair and hold it on a wall. What happens? (a) it bursts at once (b) it sticks for a while (c) it falls straight down (d) it turns into water
24. 24.True or false: a steel spoon does not move to a charged comb. (a) True (b) False
25. 25.⚡ Which of these jumps to a charged comb? (a) tiny paper bits (b) a brick (c) a steel spoon (d) a pebble
26. 26.🧺 Do we need a balloon for the static comb? (a) needed (b) not needed
27. 27.⚖️ 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
28. 28.⚖️ 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
29. 29.⚖️ 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
30. 30.True or false: dry hair is needed for the static comb. (a) False (b) True
31. 31.⚡ A rubbed comb is held near a steel spoon. What happens? (a) jumps to the comb (b) does not move
32. 32.True or false: tiny paper bits is not needed for the static comb. (a) True (b) False
33. 33.🧺 Which of these is not needed for the static comb? (a) a balloon (b) tiny paper bits (c) dry hair (d) turmeric powder
34. 34.True or false: dry hair does not move to a charged comb. (a) True (b) False
35. 35.True or false: tiny paper bits jumps to a charged comb. (a) True (b) False
36. 36.🔍 Which is the odd one out? (a) a pebble (b) puffed rice (c) a heavy book (d) a brick
37. 37.🔍 Which is the odd one out? (a) thermocol bits (b) a brick (c) a steel spoon (d) a pebble
38. 38.⚖️ 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
39. 39.⚖️ 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) number of rubs (c) the same comb
40. 40.🧺 Do we need a battery cell for the static comb? (a) needed (b) not needed

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