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Simple Pendulum Experiment Worksheet

Science experiments lesson 23: Simple pendulum timing · Set 929 · 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.

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

Answer key

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

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