Simple Pendulum Experiment Worksheet

Science experiments lesson 23: Simple pendulum timing · Set 526 · 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? What do we do with “the string length”? (a) we measure it (b) we keep it the same (c) we change it
2. 2.True or false: turmeric powder is needed for the pendulum. (a) False (b) True
3. 3.🔮 Predict: you make the string shorter. The swings get ___. (a) heavier (b) stopped (c) slower (d) quicker
4. 4.True or false: yeast is not needed for the pendulum. (a) False (b) True
5. 5.⚖️ Fair test — does a longer string make the pendulum swing more slowly? Which of these is kept the same? (a) the same hook (b) the string length (c) time for 10 swings
6. 6.🧺 Which of these is needed for the pendulum? (a) a battery cell (b) yeast (c) turmeric powder (d) a stopwatch
7. 7.🧺 Three of these are needed for the pendulum. Which one is NOT needed? (a) a heavy nut or washer (b) turmeric powder (c) a pencil and tape (d) a stopwatch
8. 8.True or false: a battery cell is not needed for the pendulum. (a) True (b) False
9. 9.🧺 Three of these are needed for the pendulum. Which one is NOT needed? (a) a heavy nut or washer (b) a string (c) a battery cell (d) a pencil and tape
10. 10.🧺 Three of these are needed for the pendulum. Which one is NOT needed? (a) a pencil and tape (b) a ruler (c) a balloon (d) a string
11. 11.⚖️ 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
12. 12.⚖️ 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
13. 13.⚖️ 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) the string length (d) how far we pull it back
14. 14.🕰️ Does a heavier bob change the swing time? (a) yes, much faster (b) yes, much slower (c) it stops swinging (d) no, hardly at all
15. 15.⚖️ 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
16. 16.🔮 Predict: you make the string 4 times as long. How does the swing time change? (a) it halves (b) it stays the same (c) it becomes 4 times (d) it doubles
17. 17.🕰️ A pendulum makes 10 swings in 20 seconds. How many seconds does one swing take?
18. 18.🕰️ A pendulum makes 5 swings in 10 seconds. How many seconds does one swing take?
19. 19.📘 What pulls the pendulum bob back down after each swing? (a) the wind (b) magnetism (c) the string (d) gravity
20. 20.True or false: a balloon is needed for the pendulum. (a) False (b) True
21. 21.🕰️ Which change makes a pendulum swing more slowly? (a) a heavier bob (b) a shorter string (c) a longer string (d) a lighter bob
22. 22.🕰️ A pendulum makes 15 swings in 30 seconds. How many seconds does one swing take?
23. 23.🕰️ A pendulum makes 20 swings in 40 seconds. How many seconds does one swing take?
24. 24.🧺 Do we need a stopwatch for the pendulum? (a) needed (b) not needed
25. 25.🧺 Three of these are needed for the pendulum. Which one is NOT needed? (a) a magnet (b) a heavy nut or washer (c) a string (d) a ruler
26. 26.🛟 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
27. 27.True or false: a heavy nut or washer is needed for the pendulum. (a) False (b) True
28. 28.True or false: a heavy nut or washer is not needed for the pendulum. (a) False (b) True
29. 29.🛟 Why should you stand back from a swinging pendulum? (a) it is wet (b) it is magnetic (c) the bob could hit you (d) it is hot
30. 30.🧺 Which of these is needed for the pendulum? (a) a heavy nut or washer (b) turmeric powder (c) a battery cell (d) a magnet
31. 31.⚖️ Fair test — does a longer string make the pendulum swing more slowly? What do we do with “time for 10 swings”? (a) we change it (b) we measure it (c) we keep it the same
32. 32.🧺 Which of these is not needed for the pendulum? (a) a stopwatch (b) a ruler (c) yeast (d) a string
33. 33.🧺 Do we need a balloon for the pendulum? (a) needed (b) not needed
34. 34.⚖️ Fair test — does a longer string make the pendulum swing more slowly? True or false: time for 10 swings is what we measure. (a) True (b) False
35. 35.🧺 Do we need yeast for the pendulum? (a) needed (b) not needed
36. 36.🕰️ A pendulum makes 15 swings in 15 seconds. How many seconds does one swing take?
37. 37.🕰️ A pendulum takes 2 seconds for one swing. How many swings does it make in 32 seconds?
38. 38.🕰️ A pendulum takes 2 seconds for one swing. How many swings does it make in 20 seconds?
39. 39.⚖️ 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) True (b) False
40. 40.🧺 Do we need a pencil and tape for the pendulum? (a) not needed (b) needed

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