Static Electricity Experiment Worksheet

Science experiments lesson 21: Static electricity: comb and paper bits · Set 136 · 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.🛟 Static from a comb is safe. Which electricity must children never play with? (a) a rubbed balloon (b) paper bits on a comb (c) a rubbed plastic comb (d) plug points at home
2. 2.⚖️ 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
3. 3.🔮 Predict: you rub a balloon on dry hair and hold it on a wall. What happens? (a) it turns into water (b) it sticks for a while (c) it falls straight down (d) it bursts at once
4. 4.⚡ A rubbed comb is held near a pebble. What happens? (a) jumps to the comb (b) does not move
5. 5.🔮 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
6. 6.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a balloon (b) a plastic comb (c) tiny paper bits (d) vinegar
7. 7.🧺 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) a battery cell
8. 8.🧺 Do we need a magnet for the static comb? (a) not needed (b) needed
9. 9.🧺 Do we need yeast for the static comb? (a) needed (b) not needed
10. 10.⚖️ 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 keep it the same (c) we change it
11. 11.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “the same comb”? (a) we keep it the same (b) we change it (c) we measure it
12. 12.True or false: a magnet is needed for the static comb. (a) True (b) False
13. 13.⚡ A rubbed comb is held near thermocol bits. What happens? (a) does not move (b) jumps to the comb
14. 14.⚡ Why does the comb trick work best on a dry day? (a) damp air leaks charge (b) water adds charge (c) wet hair is magnetic (d) dry days are noisy
15. 15.⚖️ 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
16. 16.🧺 Which of these is not needed for the static comb? (a) dry hair (b) a balloon (c) a plastic comb (d) a mirror
17. 17.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a balloon (b) dry hair (c) a plastic comb (d) turmeric powder
18. 18.🧺 Do we need tiny paper bits for the static comb? (a) needed (b) not needed
19. 19.⚡ Which of these jumps to a charged comb? (a) a brick (b) a heavy book (c) a steel spoon (d) tiny paper bits
20. 20.🔍 Which is the odd one out? (a) dry hair (b) thermocol bits (c) tiny paper bits (d) a brick
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.⚖️ 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
23. 23.⚡ You comb dry hair and hold the comb near tiny paper bits. What happens? (a) they turn blue (b) the bits jump to it (c) nothing happens (d) they turn wet
24. 24.True or false: tiny paper bits is not needed for the static comb. (a) False (b) True
25. 25.⚡ A rubbed comb is held near dry hair. What happens? (a) does not move (b) jumps to the comb
26. 26.True or false: vinegar is needed for the static comb. (a) False (b) True
27. 27.🔍 Which is the odd one out? (a) a brick (b) tiny paper bits (c) a pebble (d) a heavy book
28. 28.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a plastic comb (b) a balloon (c) a mirror (d) dry hair
29. 29.🔍 Which is the odd one out? (a) puffed rice (b) a pebble (c) a brick (d) a steel spoon
30. 30.True or false: a steel spoon jumps to a charged comb. (a) False (b) True
31. 31.⚡ Which of these does not move to a charged comb? (a) a thin water stream (b) tiny paper bits (c) thermocol bits (d) a steel spoon
32. 32.🧺 Do we need a plastic comb for the static comb? (a) not needed (b) needed
33. 33.⚡ A rubbed comb is held near a steel spoon. What happens? (a) does not move (b) jumps to the comb
34. 34.True or false: vinegar is not needed for the static comb. (a) True (b) False
35. 35.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) tiny paper bits (b) a plastic comb (c) yeast (d) dry hair
36. 36.True or false: a battery cell is needed for the static comb. (a) False (b) True
37. 37.⚡ Why does the rubbed comb pull the paper bits? (a) it is hot (b) it is sticky (c) it is a magnet (d) it has static charge
38. 38.True or false: a steel spoon does not move to a charged comb. (a) False (b) True
39. 39.⚡ A rubbed comb is held near puffed rice. What happens? (a) does not move (b) jumps to the comb
40. 40.🔍 Which is the odd one out? (a) a thin water stream (b) a steel spoon (c) dry hair (d) puffed rice

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