Static Electricity Experiment Worksheet

Science experiments lesson 21: Static electricity: comb and paper bits · Set 187 · 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.🧺 Do we need a battery cell for the static comb? (a) needed (b) not needed
2. 2.True or false: tiny paper bits jumps to a charged comb. (a) False (b) True
3. 3.⚡ Which of these jumps to a charged comb? (a) a brick (b) thermocol bits (c) a steel spoon (d) a pebble
4. 4.🧺 Do we need a mirror for the static comb? (a) needed (b) not needed
5. 5.🔮 Predict: you wet the comb before trying again. What happens? (a) it works better (b) it hardly works (c) it lights up (d) it becomes a magnet
6. 6.⚡ Which of these does not move to a charged comb? (a) a thin water stream (b) a brick (c) puffed rice (d) thermocol bits
7. 7.⚖️ 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
8. 8.🧺 Do we need tiny paper bits for the static comb? (a) not needed (b) needed
9. 9.🔮 Predict: a charged comb is held near a thin stream of tap water. What happens? (a) the water stops (b) the water freezes (c) nothing at all (d) the stream bends
10. 10.⚡ Which of these jumps to a charged comb? (a) a pebble (b) puffed rice (c) a heavy book (d) a steel spoon
11. 11.True or false: a battery cell is not needed for the static comb. (a) False (b) True
12. 12.🧺 Which of these is needed for the static comb? (a) yeast (b) turmeric powder (c) a battery cell (d) a balloon
13. 13.True or false: a thin water stream jumps to a charged comb. (a) False (b) True
14. 14.📘 Rubbing moves tiny charges. What do we call the charge that builds up? (a) gravity (b) sunlight (c) magnetism (d) static electricity
15. 15.⚖️ 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 measure it (c) we change it
16. 16.🛟 Static from a comb is safe. Which electricity must children never play with? (a) plug points at home (b) a rubbed balloon (c) a rubbed plastic comb (d) paper bits on a comb
17. 17.🛟 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
18. 18.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “distance to the paper”? (a) we keep it the same (b) we change it (c) we measure it
19. 19.⚖️ 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
20. 20.True or false: a balloon is needed for the static comb. (a) False (b) True
21. 21.⚖️ 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
22. 22.⚡ A rubbed comb is held near a thin water stream. What happens? (a) does not move (b) jumps to the comb
23. 23.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “the same hair”? (a) we keep it the same (b) we change it (c) we measure it
24. 24.⚖️ 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 paper bit size (c) paper bits picked up
25. 25.🔍 Which is the odd one out? (a) a steel spoon (b) thermocol bits (c) tiny paper bits (d) a thin water stream
26. 26.🔍 Which is the odd one out? (a) a thin water stream (b) a steel spoon (c) a heavy book (d) a brick
27. 27.⚖️ 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 keep it the same (c) we change it
28. 28.⚡ 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
29. 29.⚡ Which of these does not move to a charged comb? (a) thermocol bits (b) tiny paper bits (c) puffed rice (d) a steel spoon
30. 30.🧺 Which of these is not needed for the static comb? (a) a mirror (b) a balloon (c) a plastic comb (d) dry hair
31. 31.🔍 Which is the odd one out? (a) a thin water stream (b) tiny paper bits (c) a pebble (d) dry hair
32. 32.🔮 Predict: you rub a balloon on dry hair and hold it on a wall. What happens? (a) it bursts at once (b) it turns into water (c) it falls straight down (d) it sticks for a while
33. 33.⚖️ 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
34. 34.⚖️ 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) False (b) True
35. 35.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a plastic comb (b) dry hair (c) vinegar (d) tiny paper bits
36. 36.🔍 Which is the odd one out? (a) a heavy book (b) a brick (c) a steel spoon (d) dry hair
37. 37.🧺 Which of these is needed for the static comb? (a) a magnet (b) vinegar (c) turmeric powder (d) dry hair
38. 38.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a balloon (b) a battery cell (c) a plastic comb (d) dry hair
39. 39.⚡ A rubbed comb is held near a steel spoon. What happens? (a) jumps to the comb (b) does not move
40. 40.True or false: tiny paper bits is not needed for the static comb. (a) True (b) False

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