Simple Pendulum Experiment Worksheet

Science experiments lesson 23: Simple pendulum timing · Set 109 · 40 questions

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.

1. 1.🕰️ A pendulum takes 2 seconds for one swing. How many swings does it make in 40 seconds?
2. 2.🕰️ A pendulum makes 10 swings in 10 seconds. How many seconds does one swing take?
3. 3.🧺 Do we need a stopwatch for the pendulum? (a) not needed (b) needed
4. 4.🕰️ A pendulum takes 1 second for one swing. How many swings does it make in 15 seconds?
5. 5.🕰️ A pendulum takes 1 second for one swing. How many swings does it make in 7 seconds?
6. 6.🕰️ A pendulum makes 5 swings in 5 seconds. How many seconds does one swing take?
7. 7.🧺 Three of these are needed for the pendulum. Which one is NOT needed? (a) a ruler (b) a heavy nut or washer (c) a magnet (d) a string
8. 8.True or false: a mirror is needed for the pendulum. (a) True (b) False
9. 9.⚖️ 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 change it (c) we keep it the same
10. 10.🕰️ Which change makes a pendulum swing more slowly? (a) a heavier bob (b) a lighter bob (c) a shorter string (d) a longer string
11. 11.True or false: a string is not needed for the pendulum. (a) False (b) True
12. 12.⚖️ 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) how far we pull it back (c) time for 10 swings (d) the same hook
13. 13.🧺 Three of these are needed for the pendulum. Which one is NOT needed? (a) a stopwatch (b) a heavy nut or washer (c) a string (d) a mirror
14. 14.🧺 Do we need a ruler for the pendulum? (a) not needed (b) needed
15. 15.⚖️ Fair test — does a longer string make the pendulum swing more slowly? What do we do with “the same hook”? (a) we measure it (b) we change it (c) we keep it the same
16. 16.🧺 Which of these is needed for the pendulum? (a) a balloon (b) a heavy nut or washer (c) yeast (d) turmeric powder
17. 17.True or false: a battery cell is needed for the pendulum. (a) False (b) True
18. 18.🧺 Three of these are needed for the pendulum. Which one is NOT needed? (a) a heavy nut or washer (b) a ruler (c) yeast (d) a string
19. 19.🔮 Predict: you make the string shorter. The swings get ___. (a) heavier (b) stopped (c) quicker (d) slower
20. 20.True or false: a stopwatch is needed for the pendulum. (a) True (b) False
21. 21.⚖️ 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
22. 22.🧺 Which of these is not needed for the pendulum? (a) a ruler (b) a string (c) a pencil and tape (d) turmeric powder
23. 23.⚖️ Fair test — does a longer string make the pendulum swing more slowly? True or false: time for 10 swings is kept the same. (a) False (b) True
24. 24.⚖️ 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) False (b) True
25. 25.⚖️ 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
26. 26.🛟 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
27. 27.🕰️ A pendulum makes 5 swings in 15 seconds. How many seconds does one swing take?
28. 28.🕰️ Does a heavier bob change the swing time? (a) it stops swinging (b) yes, much faster (c) yes, much slower (d) no, hardly at all
29. 29.🧺 Which of these is not needed for the pendulum? (a) a balloon (b) a stopwatch (c) a pencil and tape (d) a ruler
30. 30.🕰️ A pendulum takes 2 seconds for one swing. How many swings does it make in 10 seconds?
31. 31.⚖️ Fair test — does a longer string make the pendulum swing more slowly? True or false: the same hook is what we measure. (a) False (b) True
32. 32.🧺 Do we need a string for the pendulum? (a) not needed (b) needed
33. 33.⚖️ 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
34. 34.⚖️ Fair test — does a longer string make the pendulum swing more slowly? Which of these is kept the same? (a) time for 10 swings (b) the weight of the bob (c) the string length
35. 35.⚖️ 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 keep it the same (b) we measure it (c) we change it
36. 36.⚖️ Fair test — does a longer string make the pendulum swing more slowly? What do we do with “time for 10 swings”? (a) we keep it the same (b) we measure it (c) we change it
37. 37.🧺 Which of these is needed for the pendulum? (a) a stopwatch (b) a battery cell (c) a mirror (d) turmeric powder
38. 38.🧺 Which of these is not needed for the pendulum? (a) a string (b) a battery cell (c) a ruler (d) a heavy nut or washer
39. 39.⚖️ 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
40. 40.🕰️ A pendulum takes 3 seconds for one swing. How many swings does it make in 27 seconds?

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