Simple Pendulum Experiment Worksheet

Science experiments lesson 23: Simple pendulum timing · Set 112 · 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.⚖️ 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) time for 10 swings (c) how far we pull it back (d) the string length
2. 2.⚖️ 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
3. 3.🧺 Do we need a heavy nut or washer for the pendulum? (a) not needed (b) needed
4. 4.🧺 Which of these is not needed for the pendulum? (a) a pencil and tape (b) a string (c) turmeric powder (d) a stopwatch
5. 5.⚖️ 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
6. 6.True or false: a magnet is needed for the pendulum. (a) False (b) True
7. 7.⚖️ Fair test — does a longer string make the pendulum swing more slowly? What do we do with “time for 10 swings”? (a) we measure it (b) we keep it the same (c) we change it
8. 8.🧺 Three of these are needed for the pendulum. Which one is NOT needed? (a) yeast (b) a string (c) a heavy nut or washer (d) a pencil and tape
9. 9.🔮 Predict: you make the string 4 times as long. How does the swing time change? (a) it becomes 4 times (b) it halves (c) it doubles (d) it stays the same
10. 10.🧺 Do we need a ruler for the pendulum? (a) not needed (b) needed
11. 11.⚖️ Fair test — does a longer string make the pendulum swing more slowly? True or false: how far we pull it back is the one thing we change. (a) True (b) False
12. 12.🕰️ A pendulum makes 20 swings in 20 seconds. How many seconds does one swing take?
13. 13.⚖️ 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) False (b) True
14. 14.🕰️ A pendulum makes 10 swings in 10 seconds. How many seconds does one swing take?
15. 15.🧺 Do we need a magnet for the pendulum? (a) not needed (b) needed
16. 16.🧺 Which of these is needed for the pendulum? (a) a magnet (b) yeast (c) a balloon (d) a ruler
17. 17.🧺 Three of these are needed for the pendulum. Which one is NOT needed? (a) a ruler (b) a heavy nut or washer (c) a string (d) turmeric powder
18. 18.True or false: a stopwatch is needed for the pendulum. (a) False (b) True
19. 19.🧺 Three of these are needed for the pendulum. Which one is NOT needed? (a) a string (b) a stopwatch (c) a magnet (d) a pencil and tape
20. 20.🧺 Do we need turmeric powder for the pendulum? (a) not needed (b) needed
21. 21.⚖️ 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
22. 22.🧺 Do we need a balloon for the pendulum? (a) not needed (b) needed
23. 23.🛟 What is a safe bob for a home pendulum? (a) a heavy brick (b) a sharp tool (c) a glass bottle (d) a small nut or washer
24. 24.⚖️ 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) how far we pull it back (c) the string length
25. 25.🔮 A heavier child sits on the same park swing. What happens to the swing time? (a) much faster (b) much slower (c) it cannot swing (d) about the same
26. 26.True or false: a magnet is not needed for the pendulum. (a) False (b) True
27. 27.True or false: yeast is needed for the pendulum. (a) False (b) True
28. 28.🧺 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) a mirror
29. 29.🧺 Which of these is not needed for the pendulum? (a) a heavy nut or washer (b) a stopwatch (c) a ruler (d) a balloon
30. 30.⚖️ 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
31. 31.⚖️ 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 change it (c) we measure it
32. 32.🕰️ A pendulum makes 15 swings in 15 seconds. How many seconds does one swing take?
33. 33.🛟 Why should you stand back from a swinging pendulum? (a) the bob could hit you (b) it is magnetic (c) it is hot (d) it is wet
34. 34.🧺 Which of these is needed for the pendulum? (a) a magnet (b) a mirror (c) a pencil and tape (d) a balloon
35. 35.🧺 Which of these is needed for the pendulum? (a) a battery cell (b) yeast (c) a string (d) a mirror
36. 36.True or false: a ruler is needed for the pendulum. (a) False (b) True
37. 37.True or false: a ruler is not needed for the pendulum. (a) True (b) False
38. 38.True or false: a string is not needed for the pendulum. (a) False (b) True
39. 39.🧺 Do we need a battery cell for the pendulum? (a) not needed (b) needed
40. 40.🕰️ A pendulum makes 5 swings in 5 seconds. How many seconds does one swing take?

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