Simple Pendulum Experiment Worksheet

Science experiments lesson 23: Simple pendulum timing · Set 663 · 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 makes 20 swings in 20 seconds. How many seconds does one swing take?
2. 2.🧺 Which of these is not needed for the pendulum? (a) a heavy nut or washer (b) a ruler (c) a magnet (d) a string
3. 3.True or false: a mirror is needed for the pendulum. (a) True (b) False
4. 4.⚖️ Fair test — does a longer string make the pendulum swing more slowly? Which of these is kept the same? (a) the string length (b) the same hook (c) time for 10 swings
5. 5.🛟 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
6. 6.⚖️ 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
7. 7.True or false: a stopwatch is needed for the pendulum. (a) False (b) True
8. 8.🧺 Do we need a pencil and tape for the pendulum? (a) not needed (b) needed
9. 9.🧺 Which of these is needed for the pendulum? (a) a mirror (b) yeast (c) a magnet (d) a pencil and tape
10. 10.True or false: a balloon is not needed for the pendulum. (a) False (b) True
11. 11.🧺 Which of these is needed for the pendulum? (a) yeast (b) a heavy nut or washer (c) turmeric powder (d) a mirror
12. 12.🕰️ A pendulum takes 3 seconds for one swing. How many swings does it make in 27 seconds?
13. 13.🛟 What is a safe bob for a home pendulum? (a) a sharp tool (b) a heavy brick (c) a glass bottle (d) a small nut or washer
14. 14.🧺 Do we need a magnet for the pendulum? (a) not needed (b) needed
15. 15.🧺 Three of these are needed for the pendulum. Which one is NOT needed? (a) a string (b) a ruler (c) turmeric powder (d) a heavy nut or washer
16. 16.🧺 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) a string (d) a balloon
17. 17.🧺 Do we need a battery cell for the pendulum? (a) needed (b) not needed
18. 18.🧺 Do we need a mirror for the pendulum? (a) needed (b) not needed
19. 19.True or false: yeast is needed for the pendulum. (a) False (b) True
20. 20.🧺 Do we need yeast for the pendulum? (a) needed (b) not needed
21. 21.🕰️ A pendulum makes 5 swings in 5 seconds. How many seconds does one swing take?
22. 22.🧺 Three of these are needed for the pendulum. Which one is NOT needed? (a) a string (b) a ruler (c) a heavy nut or washer (d) a mirror
23. 23.⚖️ 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
24. 24.🧺 Which of these is needed for the pendulum? (a) a mirror (b) yeast (c) a balloon (d) a ruler
25. 25.🧺 Which of these is not needed for the pendulum? (a) a string (b) a ruler (c) a pencil and tape (d) turmeric powder
26. 26.⚖️ 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
27. 27.True or false: turmeric powder is needed for the pendulum. (a) True (b) False
28. 28.⚖️ 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
29. 29.🧺 Which of these is not needed for the pendulum? (a) a heavy nut or washer (b) a string (c) a mirror (d) a stopwatch
30. 30.True or false: a stopwatch is not needed for the pendulum. (a) False (b) True
31. 31.🧺 Three of these are needed for the pendulum. Which one is NOT needed? (a) yeast (b) a string (c) a ruler (d) a stopwatch
32. 32.⚖️ 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 change it (c) we keep it the same
33. 33.⚖️ Fair test — does a longer string make the pendulum swing more slowly? True or false: the string length is what we measure. (a) True (b) False
34. 34.🧺 Which of these is not needed for the pendulum? (a) a heavy nut or washer (b) a pencil and tape (c) a battery cell (d) a stopwatch
35. 35.🕰️ A pendulum takes 1 second for one swing. How many swings does it make in 11 seconds?
36. 36.⚖️ 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) how far we pull it back (c) the string length (d) time for 10 swings
37. 37.⚖️ Fair test — does a longer string make the pendulum swing more slowly? True or false: the weight of the bob is kept the same. (a) False (b) True
38. 38.🧺 Three of these are needed for the pendulum. Which one is NOT needed? (a) a stopwatch (b) a pencil and tape (c) a battery cell (d) a string
39. 39.⚖️ 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
40. 40.⚖️ 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) False (b) True

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