Static Electricity Experiment Worksheet

Science experiments lesson 21: Static electricity: comb and paper bits · Set 13 · 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.⚡ Why does the comb trick work best on a dry day? (a) dry days are noisy (b) water adds charge (c) damp air leaks charge (d) wet hair is magnetic
2. 2.🔮 Predict: a charged comb is held near a thin stream of tap water. What happens? (a) the water freezes (b) the water stops (c) nothing at all (d) the stream bends
3. 3.⚡ Which of these does not move to a charged comb? (a) puffed rice (b) thermocol bits (c) tiny paper bits (d) a brick
4. 4.⚡ A rubbed comb is held near dry hair. What happens? (a) does not move (b) jumps to the comb
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) True (b) False
6. 6.🧺 Which of these is needed for the static comb? (a) tiny paper bits (b) turmeric powder (c) a mirror (d) yeast
7. 7.⚡ Which of these does not move to a charged comb? (a) a thin water stream (b) a pebble (c) thermocol bits (d) tiny paper bits
8. 8.⚖️ 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
9. 9.🔍 Which is the odd one out? (a) a heavy book (b) tiny paper bits (c) a steel spoon (d) a pebble
10. 10.⚡ A rubbed comb is held near a brick. What happens? (a) does not move (b) jumps to the comb
11. 11.🔍 Which is the odd one out? (a) tiny paper bits (b) dry hair (c) puffed rice (d) a steel spoon
12. 12.⚡ You comb dry hair and hold the comb near tiny paper bits. What happens? (a) nothing happens (b) they turn blue (c) the bits jump to it (d) they turn wet
13. 13.🛟 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
14. 14.🧺 Which of these is needed for the static comb? (a) yeast (b) a battery cell (c) a magnet (d) a plastic comb
15. 15.🧺 Do we need tiny paper bits for the static comb? (a) needed (b) not needed
16. 16.True or false: dry hair does not move to a charged comb. (a) False (b) True
17. 17.🧺 Do we need a mirror for the static comb? (a) needed (b) not needed
18. 18.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: the same comb is what we measure. (a) False (b) True
19. 19.True or false: a thin water stream jumps to a charged comb. (a) True (b) False
20. 20.⚖️ 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) the same comb (c) paper bits picked up (d) the paper bit size
21. 21.⚡ Which of these jumps to a charged comb? (a) a steel spoon (b) a heavy book (c) a pebble (d) a thin water stream
22. 22.🧺 Do we need dry hair for the static comb? (a) needed (b) not needed
23. 23.🧺 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) yeast
24. 24.🛟 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
25. 25.⚖️ 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
26. 26.True or false: a battery cell is not needed for the static comb. (a) False (b) True
27. 27.⚡ Which of these jumps to a charged comb? (a) a steel spoon (b) tiny paper bits (c) a pebble (d) a brick
28. 28.⚡ Which of these does not move to a charged comb? (a) a heavy book (b) puffed rice (c) tiny paper bits (d) a thin water stream
29. 29.🧺 Do we need vinegar for the static comb? (a) not needed (b) needed
30. 30.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: distance to the paper is kept the same. (a) False (b) True
31. 31.🧺 Which of these is not needed for the static comb? (a) a balloon (b) yeast (c) tiny paper bits (d) a plastic comb
32. 32.🧺 Do we need a magnet for the static comb? (a) needed (b) not needed
33. 33.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a magnet (b) dry hair (c) a plastic comb (d) a balloon
34. 34.True or false: tiny paper bits jumps to a charged comb. (a) False (b) True
35. 35.🧺 Which of these is not needed for the static comb? (a) dry hair (b) a mirror (c) a plastic comb (d) tiny paper bits
36. 36.🔍 Which is the odd one out? (a) a heavy book (b) a thin water stream (c) tiny paper bits (d) thermocol bits
37. 37.True or false: tiny paper bits is needed for the static comb. (a) False (b) True
38. 38.🔍 Which is the odd one out? (a) a steel spoon (b) dry hair (c) a brick (d) a pebble
39. 39.⚡ Why does the rubbed comb pull the paper bits? (a) it is sticky (b) it is a magnet (c) it has static charge (d) it is hot
40. 40.True or false: puffed rice does not move to a charged comb. (a) True (b) False

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