Static Electricity Experiment Worksheet

Science experiments lesson 21: Static electricity: comb and paper bits · Set 782 · 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.🔮 Predict: you rub a balloon on dry hair and hold it on a wall. What happens? (a) it sticks for a while (b) it turns into water (c) it falls straight down (d) it bursts at once
2. 2.🧺 Which of these is not needed for the static comb? (a) a balloon (b) dry hair (c) a plastic comb (d) turmeric powder
3. 3.🔮 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 stops (d) the water freezes
4. 4.⚡ Which of these jumps to a charged comb? (a) a pebble (b) a thin water stream (c) a heavy book (d) a brick
5. 5.⚖️ 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) distance to the paper (d) number of rubs
6. 6.⚖️ 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 same comb (d) the same hair
7. 7.True or false: a balloon is not needed for the static comb. (a) True (b) False
8. 8.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? Which of these is kept the same? (a) the same hair (b) paper bits picked up (c) number of rubs
9. 9.🛟 There is lightning outside. Where is it safest to be? (a) in an open field (b) on a rooftop (c) indoors (d) under a tall tree
10. 10.🔍 Which is the odd one out? (a) thermocol bits (b) a pebble (c) puffed rice (d) a thin water stream
11. 11.🔍 Which is the odd one out? (a) tiny paper bits (b) a brick (c) dry hair (d) puffed rice
12. 12.🧺 Do we need a balloon for the static comb? (a) needed (b) not needed
13. 13.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a balloon (b) tiny paper bits (c) dry hair (d) a mirror
14. 14.🧺 Do we need a mirror for the static comb? (a) not needed (b) needed
15. 15.🛟 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 plastic comb (d) a rubbed balloon
16. 16.⚖️ 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
17. 17.🧺 Which of these is not needed for the static comb? (a) a plastic comb (b) dry hair (c) a balloon (d) a magnet
18. 18.⚡ Which of these jumps to a charged comb? (a) thermocol bits (b) a steel spoon (c) a heavy book (d) a brick
19. 19.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: number of rubs is kept the same. (a) True (b) False
20. 20.🔍 Which is the odd one out? (a) a steel spoon (b) a pebble (c) a heavy book (d) tiny paper bits
21. 21.⚖️ 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) True (b) False
22. 22.🧺 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 battery cell
23. 23.🧺 Which of these is not needed for the static comb? (a) a plastic comb (b) tiny paper bits (c) dry hair (d) a mirror
24. 24.🔮 Predict: you wet the comb before trying again. What happens? (a) it hardly works (b) it lights up (c) it works better (d) it becomes a magnet
25. 25.🔍 Which is the odd one out? (a) a brick (b) a steel spoon (c) puffed rice (d) a heavy book
26. 26.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “distance to the paper”? (a) we measure it (b) we keep it the same (c) we change it
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) True (b) False
28. 28.⚡ A rubbed comb is held near a pebble. What happens? (a) jumps to the comb (b) does not move
29. 29.🧺 Which of these is needed for the static comb? (a) a battery cell (b) a magnet (c) a balloon (d) vinegar
30. 30.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) tiny paper bits (b) a balloon (c) a plastic comb (d) vinegar
31. 31.True or false: tiny paper bits is not needed for the static comb. (a) False (b) True
32. 32.⚡ A rubbed comb is held near thermocol bits. What happens? (a) does not move (b) jumps to the comb
33. 33.⚡ Why does the comb trick work best on a dry day? (a) water adds charge (b) damp air leaks charge (c) dry days are noisy (d) wet hair is magnetic
34. 34.⚖️ 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) distance to the paper (c) paper bits picked up
35. 35.📘 Rubbing moves tiny charges. What do we call the charge that builds up? (a) sunlight (b) magnetism (c) gravity (d) static electricity
36. 36.True or false: dry hair does not move to a charged comb. (a) True (b) False
37. 37.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “number of rubs”? (a) we measure it (b) we keep it the same (c) we change it
38. 38.🧺 Which of these is not needed for the static comb? (a) a plastic comb (b) a battery cell (c) tiny paper bits (d) dry hair
39. 39.🧺 Which of these is needed for the static comb? (a) a battery cell (b) a plastic comb (c) a mirror (d) a magnet
40. 40.🧺 Do we need a magnet for the static comb? (a) needed (b) not needed

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