Static Electricity Experiment Worksheet

Science experiments lesson 21: Static electricity: comb and paper bits · Set 293 · 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.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? Which of these is the one thing we change? (a) paper bits picked up (b) the same hair (c) the same comb (d) number of rubs
2. 2.🧺 Which of these is not needed for the static comb? (a) tiny paper bits (b) dry hair (c) a mirror (d) a balloon
3. 3.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) dry hair (b) tiny paper bits (c) a plastic comb (d) vinegar
4. 4.🔍 Which is the odd one out? (a) a heavy book (b) a thin water stream (c) tiny paper bits (d) puffed rice
5. 5.⚡ A rubbed comb is held near a pebble. What happens? (a) jumps to the comb (b) does not move
6. 6.🔮 Predict: you wet the comb before trying again. What happens? (a) it works better (b) it lights up (c) it becomes a magnet (d) it hardly works
7. 7.🧺 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) a battery cell
8. 8.⚖️ 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
9. 9.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: the paper bit size is what we measure. (a) True (b) False
10. 10.⚡ 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
11. 11.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) dry hair (b) a balloon (c) turmeric powder (d) a plastic comb
12. 12.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? Which of these is what we measure? (a) the same hair (b) paper bits picked up (c) the paper bit size (d) distance to the paper
13. 13.⚖️ 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) paper bits picked up (c) distance to the paper
14. 14.⚡ Which of these jumps to a charged comb? (a) a pebble (b) a heavy book (c) a steel spoon (d) tiny paper bits
15. 15.⚖️ 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 change it (c) we measure it
16. 16.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: distance to the paper is the one thing we change. (a) True (b) False
17. 17.⚖️ 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
18. 18.🔍 Which is the odd one out? (a) a thin water stream (b) dry hair (c) a pebble (d) thermocol bits
19. 19.🧺 Which of these is not needed for the static comb? (a) a plastic comb (b) vinegar (c) dry hair (d) tiny paper bits
20. 20.⚡ Which of these does not move to a charged comb? (a) tiny paper bits (b) a thin water stream (c) dry hair (d) a steel spoon
21. 21.⚖️ 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
22. 22.🧺 Do we need a mirror for the static comb? (a) not needed (b) needed
23. 23.🧺 Which of these is needed for the static comb? (a) a magnet (b) yeast (c) a mirror (d) a plastic comb
24. 24.🧺 Do we need turmeric powder for the static comb? (a) needed (b) not needed
25. 25.🔮 Predict: a charged comb is held near a thin stream of tap water. What happens? (a) the water stops (b) the stream bends (c) the water freezes (d) nothing at all
26. 26.True or false: a thin water stream jumps to a charged comb. (a) False (b) True
27. 27.True or false: a magnet is needed for the static comb. (a) True (b) False
28. 28.True or false: puffed rice jumps to a charged comb. (a) False (b) True
29. 29.⚡ Which of these jumps to a charged comb? (a) thermocol bits (b) a brick (c) a heavy book (d) a pebble
30. 30.🧺 Do we need a magnet for the static comb? (a) not needed (b) needed
31. 31.⚖️ 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
32. 32.⚡ A rubbed comb is held near a brick. What happens? (a) jumps to the comb (b) does not move
33. 33.⚖️ 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) paper bits picked up (c) the same hair
34. 34.🧺 Do we need a plastic comb for the static comb? (a) not needed (b) needed
35. 35.🔮 Predict: you rub a balloon on dry hair and hold it on a wall. What happens? (a) it turns into water (b) it falls straight down (c) it bursts at once (d) it sticks for a while
36. 36.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? Which of these is kept the same? (a) the paper bit size (b) number of rubs (c) paper bits picked up
37. 37.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) dry hair (b) tiny paper bits (c) a plastic comb (d) a mirror
38. 38.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: paper bits picked up is kept the same. (a) False (b) True
39. 39.⚡ Why does the rubbed comb pull the paper bits? (a) it has static charge (b) it is a magnet (c) it is hot (d) it is sticky
40. 40.True or false: thermocol bits jumps to a charged comb. (a) False (b) True

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