Static Electricity Experiment Worksheet

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

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