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Simple Pendulum Experiment Worksheet

Science experiments lesson 23: Simple pendulum timing · Set 203 · 40 questions
TalentJR

What you do (Only the length matters): 1. Tie the nut to the string and hang it from the taped pencil, 30 cm long. 2. Pull it a little to one side and let go — do not push. 3. Time 10 swings and divide by 10. 4. Change only the string length (60 cm), time 10 swings again, and stand back from the bob.

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  1. 1.True or false: a balloon is needed for the pendulum. (a) False (b) True
  2. 2.🧺 Three of these are needed for the pendulum. Which one is NOT needed? (a) a string (b) a heavy nut or washer (c) a stopwatch (d) a balloon
  3. 3.⚖️ Fair test — does a longer string make the pendulum swing more slowly? True or false: the same hook is kept the same. (a) True (b) False
  4. 4.🔮 A heavier child sits on the same park swing. What happens to the swing time? (a) about the same (b) it cannot swing (c) much slower (d) much faster
  5. 5.🧺 Do we need a battery cell for the pendulum? (a) needed (b) not needed
  6. 6.🧺 Which of these is not needed for the pendulum? (a) a pencil and tape (b) a string (c) a ruler (d) turmeric powder
  7. 7.True or false: a magnet is needed for the pendulum. (a) False (b) True
  8. 8.🧺 Three of these are needed for the pendulum. Which one is NOT needed? (a) a pencil and tape (b) a ruler (c) yeast (d) a string
  9. 9.⚖️ Fair test — does a longer string make the pendulum swing more slowly? True or false: how far we pull it back is what we measure. (a) False (b) True
  10. 10.🧺 Which of these is not needed for the pendulum? (a) a ruler (b) a stopwatch (c) a battery cell (d) a string
  11. 11.⚖️ Fair test — does a longer string make the pendulum swing more slowly? True or false: time for 10 swings is kept the same. (a) True (b) False
  12. 12.🔮 Predict: you make the string shorter. The swings get ___. (a) quicker (b) slower (c) stopped (d) heavier
  13. 13.True or false: a mirror is not needed for the pendulum. (a) False (b) True
  14. 14.True or false: a heavy nut or washer is needed for the pendulum. (a) True (b) False
  15. 15.⚖️ Fair test — does a longer string make the pendulum swing more slowly? What do we do with “the same hook”? (a) we keep it the same (b) we change it (c) we measure it
  16. 16.🧺 Which of these is needed for the pendulum? (a) a battery cell (b) a balloon (c) a string (d) turmeric powder
  17. 17.🧺 Which of these is needed for the pendulum? (a) a magnet (b) a battery cell (c) turmeric powder (d) a stopwatch
  18. 18.🕰️ A pendulum takes 2 seconds for one swing. How many swings does it make in 10 seconds?
  19. 19.⚖️ Fair test — does a longer string make the pendulum swing more slowly? True or false: the weight of the bob is kept the same. (a) True (b) False
  20. 20.🛟 What is a safe bob for a home pendulum? (a) a heavy brick (b) a sharp tool (c) a small nut or washer (d) a glass bottle
  21. 21.🧺 Which of these is needed for the pendulum? (a) a magnet (b) a balloon (c) a mirror (d) a pencil and tape
  22. 22.🛟 Why should you stand back from a swinging pendulum? (a) it is magnetic (b) the bob could hit you (c) it is wet (d) it is hot
  23. 23.True or false: a battery cell is not needed for the pendulum. (a) True (b) False
  24. 24.🕰️ A pendulum takes 2 seconds for one swing. How many swings does it make in 12 seconds?
  25. 25.🧺 Which of these is not needed for the pendulum? (a) a pencil and tape (b) a mirror (c) a heavy nut or washer (d) a ruler
  26. 26.True or false: a string is needed for the pendulum. (a) True (b) False
  27. 27.🕰️ A pendulum takes 2 seconds for one swing. How many swings does it make in 16 seconds?
  28. 28.🕰️ A pendulum makes 5 swings in 5 seconds. How many seconds does one swing take?
  29. 29.⚖️ Fair test — does a longer string make the pendulum swing more slowly? Which of these is kept the same? (a) the string length (b) the same hook (c) time for 10 swings
  30. 30.🧺 Which of these is not needed for the pendulum? (a) a balloon (b) a heavy nut or washer (c) a ruler (d) a stopwatch
  31. 31.🕰️ A pendulum makes 15 swings in 15 seconds. How many seconds does one swing take?
  32. 32.🧺 Which of these is not needed for the pendulum? (a) a pencil and tape (b) a heavy nut or washer (c) a stopwatch (d) a magnet
  33. 33.🕰️ Which change makes a pendulum swing more slowly? (a) a longer string (b) a heavier bob (c) a lighter bob (d) a shorter string
  34. 34.⚖️ Fair test — does a longer string make the pendulum swing more slowly? What do we do with “the string length”? (a) we measure it (b) we keep it the same (c) we change it
  35. 35.🕰️ A pendulum makes 20 swings in 20 seconds. How many seconds does one swing take?
  36. 36.True or false: a string is not needed for the pendulum. (a) True (b) False
  37. 37.⚖️ Fair test — does a longer string make the pendulum swing more slowly? True or false: the weight of the bob is the one thing we change. (a) True (b) False
  38. 38.🕰️ A pendulum takes 3 seconds for one swing. How many swings does it make in 60 seconds?
  39. 39.⚖️ Fair test — does a longer string make the pendulum swing more slowly? Which of these is the one thing we change? (a) time for 10 swings (b) the string length (c) the same hook (d) how far we pull it back
  40. 40.True or false: a battery cell is needed for the pendulum. (a) False (b) True

Answer key

  1. False
  2. a balloon
  3. True
  4. about the same
  5. not needed
  6. turmeric powder
  7. False
  8. yeast
  9. False
  10. a battery cell
  11. False
  12. quicker
  13. True
  14. True
  15. we keep it the same
  16. a string
  17. a stopwatch
  18. 5
  19. True
  20. a small nut or washer
  21. a pencil and tape
  22. the bob could hit you
  23. True
  24. 6
  25. a mirror
  26. True
  27. 8
  28. 1
  29. the same hook
  30. a balloon
  31. 1
  32. a magnet
  33. a longer string
  34. we change it
  35. 1
  36. False
  37. False
  38. 20
  39. the string length
  40. False

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