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Simple Pendulum Experiment Worksheet

Science experiments lesson 23: Simple pendulum timing · Set 219 · 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.🧺 Do we need turmeric powder for the pendulum? (a) needed (b) not needed
  2. 2.🛟 Why should you stand back from a swinging pendulum? (a) it is hot (b) the bob could hit you (c) it is wet (d) it is magnetic
  3. 3.🕰️ Why do we time 10 swings and divide, instead of timing just one? (a) it is more fun (b) it is more accurate (c) 10 is a lucky number (d) one swing is too slow
  4. 4.True or false: a mirror is not needed for the pendulum. (a) False (b) True
  5. 5.🕰️ Which old clock uses a pendulum to keep time? (a) a sundial (b) a phone (c) a digital watch (d) a grandfather clock
  6. 6.🧺 Which of these is needed for the pendulum? (a) a balloon (b) a ruler (c) turmeric powder (d) yeast
  7. 7.🧺 Three of these are needed for the pendulum. Which one is NOT needed? (a) a magnet (b) a stopwatch (c) a string (d) a heavy nut or washer
  8. 8.🔮 A heavier child sits on the same park swing. What happens to the swing time? (a) it cannot swing (b) much slower (c) much faster (d) about the same
  9. 9.🧺 Which of these is not needed for the pendulum? (a) a pencil and tape (b) a heavy nut or washer (c) a string (d) a balloon
  10. 10.⚖️ 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
  11. 11.🧺 Which of these is needed for the pendulum? (a) a battery cell (b) a pencil and tape (c) yeast (d) a balloon
  12. 12.⚖️ Fair test — does a longer string make the pendulum swing more slowly? True or false: the string length is what we measure. (a) False (b) True
  13. 13.🕰️ Which change makes a pendulum swing more slowly? (a) a heavier bob (b) a lighter bob (c) a longer string (d) a shorter string
  14. 14.🧺 Three of these are needed for the pendulum. Which one is NOT needed? (a) a ruler (b) a heavy nut or washer (c) a mirror (d) a pencil and tape
  15. 15.⚖️ 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) True (b) False
  16. 16.True or false: a stopwatch is not needed for the pendulum. (a) False (b) True
  17. 17.True or false: a string is not needed for the pendulum. (a) False (b) True
  18. 18.🧺 Do we need a pencil and tape for the pendulum? (a) not needed (b) needed
  19. 19.🕰️ Does a heavier bob change the swing time? (a) yes, much faster (b) yes, much slower (c) it stops swinging (d) no, hardly at all
  20. 20.True or false: a ruler is not needed for the pendulum. (a) True (b) False
  21. 21.🧺 Three of these are needed for the pendulum. Which one is NOT needed? (a) a ruler (b) a battery cell (c) a heavy nut or washer (d) a pencil and tape
  22. 22.🕰️ A pendulum makes 15 swings in 45 seconds. How many seconds does one swing take?
  23. 23.🛟 What is a safe bob for a home pendulum? (a) a sharp tool (b) a small nut or washer (c) a heavy brick (d) a glass bottle
  24. 24.True or false: a pencil and tape is needed for the pendulum. (a) True (b) False
  25. 25.True or false: yeast is needed for the pendulum. (a) False (b) True
  26. 26.🧺 Three of these are needed for the pendulum. Which one is NOT needed? (a) yeast (b) a pencil and tape (c) a heavy nut or washer (d) a ruler
  27. 27.⚖️ Fair test — does a longer string make the pendulum swing more slowly? True or false: the same hook is the one thing we change. (a) True (b) False
  28. 28.🕰️ A pendulum takes 3 seconds for one swing. How many swings does it make in 51 seconds?
  29. 29.True or false: a battery cell is not needed for the pendulum. (a) True (b) False
  30. 30.True or false: a pencil and tape is not needed for the pendulum. (a) True (b) False
  31. 31.🧺 Which of these is not needed for the pendulum? (a) turmeric powder (b) a stopwatch (c) a ruler (d) a pencil and tape
  32. 32.🧺 Which of these is not needed for the pendulum? (a) a string (b) yeast (c) a heavy nut or washer (d) a pencil and tape
  33. 33.🕰️ A pendulum takes 2 seconds for one swing. How many swings does it make in 36 seconds?
  34. 34.True or false: a balloon is needed for the pendulum. (a) True (b) False
  35. 35.⚖️ Fair test — does a longer string make the pendulum swing more slowly? What do we do with “the same hook”? (a) we change it (b) we measure it (c) we keep it the same
  36. 36.🕰️ A pendulum takes 2 seconds for one swing. How many swings does it make in 30 seconds?
  37. 37.⚖️ Fair test — does a longer string make the pendulum swing more slowly? True or false: the string length is kept the same. (a) False (b) True
  38. 38.⚖️ Fair test — does a longer string make the pendulum swing more slowly? What do we do with “how far we pull it back”? (a) we measure it (b) we change it (c) we keep it the same
  39. 39.🧺 Three of these are needed for the pendulum. Which one is NOT needed? (a) a stopwatch (b) a pencil and tape (c) a string (d) turmeric powder
  40. 40.True or false: a mirror is needed for the pendulum. (a) False (b) True

Answer key

  1. not needed
  2. the bob could hit you
  3. it is more accurate
  4. True
  5. a grandfather clock
  6. a ruler
  7. a magnet
  8. about the same
  9. a balloon
  10. False
  11. a pencil and tape
  12. False
  13. a longer string
  14. a mirror
  15. True
  16. False
  17. False
  18. needed
  19. no, hardly at all
  20. False
  21. a battery cell
  22. 3
  23. a small nut or washer
  24. True
  25. False
  26. yeast
  27. False
  28. 17
  29. True
  30. False
  31. turmeric powder
  32. yeast
  33. 18
  34. False
  35. we keep it the same
  36. 15
  37. False
  38. we keep it the same
  39. turmeric powder
  40. False

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