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Simple Pendulum Experiment Worksheet

Science experiments lesson 23: Simple pendulum timing · Set 564 · 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.🧺 Which of these is not needed for the pendulum? (a) a heavy nut or washer (b) a pencil and tape (c) a string (d) turmeric powder
  2. 2.🧺 Do we need a pencil and tape for the pendulum? (a) needed (b) not needed
  3. 3.🕰️ A pendulum takes 1 second for one swing. How many swings does it make in 5 seconds?
  4. 4.🕰️ A pendulum takes 2 seconds for one swing. How many swings does it make in 34 seconds?
  5. 5.True or false: a mirror is needed for the pendulum. (a) True (b) False
  6. 6.⚖️ 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
  7. 7.🕰️ A pendulum makes 10 swings in 30 seconds. How many seconds does one swing take?
  8. 8.⚖️ 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
  9. 9.True or false: a balloon is not needed for the pendulum. (a) True (b) False
  10. 10.🛟 Why should you stand back from a swinging pendulum? (a) it is hot (b) the bob could hit you (c) it is magnetic (d) it is wet
  11. 11.🧺 Which of these is not needed for the pendulum? (a) a string (b) a pencil and tape (c) a ruler (d) a magnet
  12. 12.🧺 Do we need a mirror for the pendulum? (a) not needed (b) needed
  13. 13.🕰️ A pendulum makes 15 swings in 45 seconds. How many seconds does one swing take?
  14. 14.🧺 Do we need a balloon for the pendulum? (a) not needed (b) needed
  15. 15.True or false: a string is not needed for the pendulum. (a) True (b) False
  16. 16.True or false: a magnet is needed for the pendulum. (a) True (b) False
  17. 17.🕰️ A pendulum makes 20 swings in 60 seconds. How many seconds does one swing take?
  18. 18.🧺 Do we need a string for the pendulum? (a) not needed (b) needed
  19. 19.🧺 Do we need a stopwatch for the pendulum? (a) not needed (b) needed
  20. 20.⚖️ 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 change it (b) we keep it the same (c) we measure it
  21. 21.True or false: a ruler is needed for the pendulum. (a) False (b) True
  22. 22.🧺 Three of these are needed for the pendulum. Which one is NOT needed? (a) a ruler (b) a string (c) a heavy nut or washer (d) a magnet
  23. 23.🧺 Which of these is not needed for the pendulum? (a) a ruler (b) yeast (c) a stopwatch (d) a heavy nut or washer
  24. 24.⚖️ Fair test — does a longer string make the pendulum swing more slowly? Which of these is the one thing we change? (a) the string length (b) time for 10 swings (c) how far we pull it back (d) the weight of the bob
  25. 25.⚖️ Fair test — does a longer string make the pendulum swing more slowly? What do we do with “the weight of the bob”? (a) we measure it (b) we keep it the same (c) we change it
  26. 26.🧺 Three of these are needed for the pendulum. Which one is NOT needed? (a) a pencil and tape (b) yeast (c) a string (d) a ruler
  27. 27.🕰️ A pendulum makes 10 swings in 10 seconds. How many seconds does one swing take?
  28. 28.⚖️ 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) True (b) False
  29. 29.🧺 Do we need a battery cell for the pendulum? (a) needed (b) not needed
  30. 30.🧺 Three of these are needed for the pendulum. Which one is NOT needed? (a) a pencil and tape (b) turmeric powder (c) a ruler (d) a heavy nut or washer
  31. 31.🔮 A heavier child sits on the same park swing. What happens to the swing time? (a) much slower (b) it cannot swing (c) about the same (d) much faster
  32. 32.⚖️ 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
  33. 33.🛟 What is a safe bob for a home pendulum? (a) a glass bottle (b) a heavy brick (c) a sharp tool (d) a small nut or washer
  34. 34.⚖️ Fair test — does a longer string make the pendulum swing more slowly? True or false: time for 10 swings is the one thing we change. (a) True (b) False
  35. 35.⚖️ Fair test — does a longer string make the pendulum swing more slowly? Which of these is what we measure? (a) the same hook (b) how far we pull it back (c) the string length (d) time for 10 swings
  36. 36.🕰️ A pendulum takes 1 second for one swing. How many swings does it make in 18 seconds?
  37. 37.📘 What pulls the pendulum bob back down after each swing? (a) the wind (b) gravity (c) the string (d) magnetism
  38. 38.🧺 Which of these is needed for the pendulum? (a) a stopwatch (b) a magnet (c) yeast (d) turmeric powder
  39. 39.🧺 Do we need turmeric powder for the pendulum? (a) needed (b) not needed
  40. 40.🕰️ Which change makes a pendulum swing more slowly? (a) a shorter string (b) a heavier bob (c) a lighter bob (d) a longer string

Answer key

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

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