Static Electricity Experiment Worksheet

Science experiments lesson 21: Static electricity: comb and paper bits · Set 270 · 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.⚡ Which of these does not move to a charged comb? (a) a steel spoon (b) a thin water stream (c) tiny paper bits (d) dry hair
2. 2.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a balloon (b) a plastic comb (c) yeast (d) dry hair
3. 3.🛟 Static from a comb is safe. Which electricity must children never play with? (a) a rubbed balloon (b) a rubbed plastic comb (c) paper bits on a comb (d) plug points at home
4. 4.🔍 Which is the odd one out? (a) a thin water stream (b) a heavy book (c) a pebble (d) a steel spoon
5. 5.⚖️ 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
6. 6.🛟 There is lightning outside. Where is it safest to be? (a) on a rooftop (b) indoors (c) in an open field (d) under a tall tree
7. 7.⚖️ 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
8. 8.⚡ Which of these jumps to a charged comb? (a) a heavy book (b) puffed rice (c) a steel spoon (d) a pebble
9. 9.⚖️ 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) True (b) False
10. 10.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “paper bits picked up”? (a) we keep it the same (b) we measure it (c) we change it
11. 11.🔮 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
12. 12.⚡ A rubbed comb is held near a thin water stream. What happens? (a) does not move (b) jumps to the comb
13. 13.True or false: dry hair is not needed for the static comb. (a) False (b) True
14. 14.⚡ Which of these jumps to a charged comb? (a) thermocol bits (b) a pebble (c) a steel spoon (d) a heavy book
15. 15.🔍 Which is the odd one out? (a) dry hair (b) a heavy book (c) thermocol bits (d) tiny paper bits
16. 16.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) tiny paper bits (b) dry hair (c) a balloon (d) a magnet
17. 17.🔮 Predict: you wet the comb before trying again. What happens? (a) it hardly works (b) it works better (c) it lights up (d) it becomes a magnet
18. 18.True or false: a heavy book jumps to a charged comb. (a) False (b) True
19. 19.🧺 Which of these is not needed for the static comb? (a) dry hair (b) a magnet (c) a plastic comb (d) a balloon
20. 20.🔍 Which is the odd one out? (a) dry hair (b) tiny paper bits (c) a thin water stream (d) a pebble
21. 21.⚖️ 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 keep it the same (c) we measure it
22. 22.True or false: a pebble does not move to a charged comb. (a) False (b) True
23. 23.🧺 Which of these is not needed for the static comb? (a) tiny paper bits (b) a plastic comb (c) turmeric powder (d) a balloon
24. 24.⚡ A rubbed comb is held near puffed rice. What happens? (a) does not move (b) jumps to the comb
25. 25.🧺 Which of these is needed for the static comb? (a) a magnet (b) vinegar (c) a battery cell (d) tiny paper bits
26. 26.True or false: a brick jumps to a charged comb. (a) True (b) False
27. 27.True or false: vinegar is needed for the static comb. (a) True (b) False
28. 28.⚡ You comb dry hair and hold the comb near tiny paper bits. What happens? (a) they turn blue (b) they turn wet (c) nothing happens (d) the bits jump to it
29. 29.⚖️ 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) distance to the paper (c) paper bits picked up (d) number of rubs
30. 30.📘 Rubbing moves tiny charges. What do we call the charge that builds up? (a) sunlight (b) magnetism (c) gravity (d) static electricity
31. 31.🧺 Do we need tiny paper bits for the static comb? (a) needed (b) not needed
32. 32.🧺 Which of these is needed for the static comb? (a) a balloon (b) a battery cell (c) a magnet (d) vinegar
33. 33.True or false: vinegar is not needed for the static comb. (a) True (b) False
34. 34.⚡ Which of these does not move to a charged comb? (a) a thin water stream (b) dry hair (c) tiny paper bits (d) a pebble
35. 35.🔍 Which is the odd one out? (a) a heavy book (b) a brick (c) dry hair (d) a pebble
36. 36.True or false: a balloon is not needed for the static comb. (a) True (b) False
37. 37.🔍 Which is the odd one out? (a) dry hair (b) a brick (c) tiny paper bits (d) a thin water stream
38. 38.True or false: a thin water stream jumps to a charged comb. (a) True (b) False
39. 39.⚡ Why does the comb trick work best on a dry day? (a) damp air leaks charge (b) water adds charge (c) dry days are noisy (d) wet hair is magnetic
40. 40.True or false: a battery cell is needed for the static comb. (a) True (b) False

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