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Static Electricity Experiment Worksheet

Science experiments lesson 21: Static electricity: comb and paper bits · Set 19 · 40 questions
TalentJR

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.

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  1. 1.⚡ Which of these jumps to a charged comb? (a) a heavy book (b) puffed rice (c) a steel spoon (d) a pebble
  2. 2.📘 Rubbing moves tiny charges. What do we call the charge that builds up? (a) magnetism (b) static electricity (c) gravity (d) sunlight
  3. 3.🔍 Which is the odd one out? (a) a thin water stream (b) a brick (c) a steel spoon (d) a pebble
  4. 4.⚖️ 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
  5. 5.🧺 Which of these is needed for the static comb? (a) turmeric powder (b) a battery cell (c) dry hair (d) a mirror
  6. 6.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “number of rubs”? (a) we change it (b) we measure it (c) we keep it the same
  7. 7.🧺 Which of these is not needed for the static comb? (a) a magnet (b) a plastic comb (c) a balloon (d) dry hair
  8. 8.🔍 Which is the odd one out? (a) a brick (b) a thin water stream (c) thermocol bits (d) puffed rice
  9. 9.True or false: a heavy book jumps to a charged comb. (a) True (b) False
  10. 10.⚖️ 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) True (b) False
  11. 11.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? Which of these is what we measure? (a) distance to the paper (b) number of rubs (c) the same hair (d) paper bits picked up
  12. 12.🧺 Do we need a battery cell for the static comb? (a) not needed (b) needed
  13. 13.⚡ A rubbed comb is held near tiny paper bits. What happens? (a) does not move (b) jumps to the comb
  14. 14.True or false: a balloon is needed for the static comb. (a) False (b) True
  15. 15.🧺 Do we need dry hair for the static comb? (a) not needed (b) needed
  16. 16.🛟 There is lightning outside. Where is it safest to be? (a) under a tall tree (b) on a rooftop (c) in an open field (d) indoors
  17. 17.🧺 Which of these is not needed for the static comb? (a) a battery cell (b) tiny paper bits (c) a plastic comb (d) a balloon
  18. 18.True or false: yeast is needed for the static comb. (a) True (b) False
  19. 19.⚡ Which of these jumps to a charged comb? (a) thermocol bits (b) a pebble (c) a heavy book (d) a brick
  20. 20.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? Which of these is kept the same? (a) the same hair (b) paper bits picked up (c) number of rubs
  21. 21.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: number of rubs is kept the same. (a) False (b) True
  22. 22.⚖️ 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 paper bit size (d) number of rubs
  23. 23.⚡ Why does the rubbed comb pull the paper bits? (a) it is a magnet (b) it has static charge (c) it is hot (d) it is sticky
  24. 24.True or false: a plastic comb is not needed for the static comb. (a) False (b) True
  25. 25.⚡ A rubbed comb is held near a pebble. What happens? (a) jumps to the comb (b) does not move
  26. 26.True or false: a plastic comb is needed for the static comb. (a) False (b) True
  27. 27.⚖️ 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) False (b) True
  28. 28.🧺 Do we need tiny paper bits for the static comb? (a) needed (b) not needed
  29. 29.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) dry hair (b) a balloon (c) a mirror (d) a plastic comb
  30. 30.🧺 Which of these is not needed for the static comb? (a) tiny paper bits (b) a balloon (c) vinegar (d) a plastic comb
  31. 31.🧺 Do we need a magnet for the static comb? (a) needed (b) not needed
  32. 32.🔮 Predict: a charged comb is held near a thin stream of tap water. What happens? (a) the stream bends (b) the water freezes (c) the water stops (d) nothing at all
  33. 33.True or false: tiny paper bits is not needed for the static comb. (a) True (b) False
  34. 34.True or false: vinegar is not needed for the static comb. (a) True (b) False
  35. 35.🔍 Which is the odd one out? (a) tiny paper bits (b) a steel spoon (c) a pebble (d) a brick
  36. 36.🧺 Do we need yeast for the static comb? (a) not needed (b) needed
  37. 37.🛟 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
  38. 38.🧺 Which of these is not needed for the static comb? (a) dry hair (b) a plastic comb (c) yeast (d) tiny paper bits
  39. 39.True or false: a steel spoon does not move to a charged comb. (a) True (b) False
  40. 40.⚡ Which of these jumps to a charged comb? (a) a steel spoon (b) a thin water stream (c) a pebble (d) a heavy book

Answer key

  1. puffed rice
  2. static electricity
  3. a thin water stream
  4. we keep it the same
  5. dry hair
  6. we change it
  7. a magnet
  8. a brick
  9. False
  10. True
  11. paper bits picked up
  12. not needed
  13. jumps to the comb
  14. True
  15. needed
  16. indoors
  17. a battery cell
  18. False
  19. thermocol bits
  20. the same hair
  21. False
  22. number of rubs
  23. it has static charge
  24. False
  25. does not move
  26. True
  27. True
  28. needed
  29. a mirror
  30. vinegar
  31. not needed
  32. the stream bends
  33. False
  34. True
  35. tiny paper bits
  36. not needed
  37. plug points at home
  38. yeast
  39. True
  40. a thin water stream

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