Simple Pendulum Experiment Worksheet

Science experiments lesson 23: Simple pendulum timing · Set 155 · 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.True or false: yeast is not needed for the pendulum. (a) True (b) False
2. 2.🕰️ A pendulum makes 5 swings in 5 seconds. How many seconds does one swing take?
3. 3.🕰️ A pendulum makes 10 swings in 10 seconds. How many seconds does one swing take?
4. 4.True or false: yeast is needed for the pendulum. (a) False (b) True
5. 5.⚖️ 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
6. 6.🧺 Three of these are needed for the pendulum. Which one is NOT needed? (a) a string (b) a heavy nut or washer (c) turmeric powder (d) a ruler
7. 7.⚖️ 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
8. 8.🕰️ Which change makes a pendulum swing more slowly? (a) a shorter string (b) a longer string (c) a lighter bob (d) a heavier bob
9. 9.🧺 Three of these are needed for the pendulum. Which one is NOT needed? (a) a stopwatch (b) a string (c) a magnet (d) a heavy nut or washer
10. 10.⚖️ Fair test — does a longer string make the pendulum swing more slowly? True or false: the string length is kept the same. (a) True (b) False
11. 11.🔮 Predict: you make the string shorter. The swings get ___. (a) stopped (b) quicker (c) slower (d) heavier
12. 12.🧺 Do we need a mirror for the pendulum? (a) needed (b) not needed
13. 13.⚖️ 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 same hook (c) the string length
14. 14.⚖️ 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
15. 15.🧺 Which of these is needed for the pendulum? (a) a stopwatch (b) turmeric powder (c) a magnet (d) a balloon
16. 16.🔮 A heavier child sits on the same park swing. What happens to the swing time? (a) much faster (b) it cannot swing (c) about the same (d) much slower
17. 17.⚖️ 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 keep it the same (c) we change it
18. 18.🕰️ A pendulum takes 3 seconds for one swing. How many swings does it make in 27 seconds?
19. 19.🔮 Predict: you make the string 4 times as long. How does the swing time change? (a) it stays the same (b) it doubles (c) it becomes 4 times (d) it halves
20. 20.🧺 Three of these are needed for the pendulum. Which one is NOT needed? (a) a heavy nut or washer (b) a pencil and tape (c) a ruler (d) a balloon
21. 21.⚖️ Fair test — does a longer string make the pendulum swing more slowly? Which of these is the one thing we change? (a) the same hook (b) the weight of the bob (c) how far we pull it back (d) the string length
22. 22.🧺 Which of these is not needed for the pendulum? (a) a heavy nut or washer (b) a string (c) a battery cell (d) a stopwatch
23. 23.🛟 What is a safe bob for a home pendulum? (a) a glass bottle (b) a sharp tool (c) a small nut or washer (d) a heavy brick
24. 24.🕰️ A pendulum makes 15 swings in 30 seconds. How many seconds does one swing take?
25. 25.⚖️ 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 measure it (c) we change it
26. 26.⚖️ Fair test — does a longer string make the pendulum swing more slowly? Which of these is kept the same? (a) the string length (b) time for 10 swings (c) the weight of the bob
27. 27.⚖️ Fair test — does a longer string make the pendulum swing more slowly? What do we do with “the weight of the bob”? (a) we change it (b) we measure it (c) we keep it the same
28. 28.🧺 Three of these are needed for the pendulum. Which one is NOT needed? (a) a ruler (b) a stopwatch (c) a pencil and tape (d) a battery cell
29. 29.🧺 Three of these are needed for the pendulum. Which one is NOT needed? (a) a pencil and tape (b) a heavy nut or washer (c) yeast (d) a ruler
30. 30.🕰️ Why do we time 10 swings and divide, instead of timing just one? (a) it is more accurate (b) 10 is a lucky number (c) it is more fun (d) one swing is too slow
31. 31.🕰️ A pendulum takes 3 seconds for one swing. How many swings does it make in 51 seconds?
32. 32.True or false: turmeric powder is needed for the pendulum. (a) False (b) True
33. 33.True or false: a balloon is needed for the pendulum. (a) False (b) True
34. 34.🧺 Do we need a string for the pendulum? (a) not needed (b) needed
35. 35.🧺 Do we need turmeric powder for the pendulum? (a) needed (b) not needed
36. 36.⚖️ 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
37. 37.🕰️ A pendulum makes 15 swings in 45 seconds. How many seconds does one swing take?
38. 38.🧺 Do we need yeast for the pendulum? (a) needed (b) not needed
39. 39.🕰️ A pendulum takes 1 second for one swing. How many swings does it make in 20 seconds?
40. 40.🕰️ A pendulum takes 3 seconds for one swing. How many swings does it make in 24 seconds?

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