Simple Pendulum Experiment Worksheet

Science experiments lesson 23: Simple pendulum timing · Set 877 · 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.🕰️ Does a heavier bob change the swing time? (a) yes, much slower (b) yes, much faster (c) no, hardly at all (d) it stops swinging
2. 2.⚖️ Fair test — does a longer string make the pendulum swing more slowly? Which of these is the one thing we change? (a) how far we pull it back (b) the same hook (c) the weight of the bob (d) the string length
3. 3.True or false: a balloon is needed for the pendulum. (a) True (b) False
4. 4.🧺 Which of these is needed for the pendulum? (a) a mirror (b) turmeric powder (c) a battery cell (d) a heavy nut or washer
5. 5.🧺 Do we need a balloon for the pendulum? (a) not needed (b) needed
6. 6.🧺 Three of these are needed for the pendulum. Which one is NOT needed? (a) a ruler (b) a heavy nut or washer (c) a stopwatch (d) a battery cell
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 balloon (d) a pencil and tape
8. 8.⚖️ 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
9. 9.🧺 Three of these are needed for the pendulum. Which one is NOT needed? (a) a ruler (b) a stopwatch (c) a string (d) a magnet
10. 10.🧺 Do we need a stopwatch for the pendulum? (a) needed (b) not needed
11. 11.🧺 Which of these is not needed for the pendulum? (a) a stopwatch (b) a string (c) a heavy nut or washer (d) a magnet
12. 12.🛟 Why should you stand back from a swinging pendulum? (a) it is hot (b) it is wet (c) it is magnetic (d) the bob could hit you
13. 13.🔮 Predict: you make the string shorter. The swings get ___. (a) slower (b) stopped (c) heavier (d) quicker
14. 14.🕰️ A pendulum makes 5 swings in 15 seconds. How many seconds does one swing take?
15. 15.🕰️ A pendulum makes 5 swings in 10 seconds. How many seconds does one swing take?
16. 16.🧺 Which of these is not needed for the pendulum? (a) a pencil and tape (b) a heavy nut or washer (c) a mirror (d) a stopwatch
17. 17.⚖️ Fair test — does a longer string make the pendulum swing more slowly? Which of these is what we measure? (a) how far we pull it back (b) the weight of the bob (c) time for 10 swings (d) the same hook
18. 18.🕰️ Which change makes a pendulum swing more slowly? (a) a longer string (b) a shorter string (c) a heavier bob (d) a lighter bob
19. 19.🕰️ A pendulum makes 10 swings in 20 seconds. How many seconds does one swing take?
20. 20.⚖️ 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
21. 21.🧺 Which of these is needed for the pendulum? (a) a pencil and tape (b) a balloon (c) a mirror (d) yeast
22. 22.🔮 Predict: you make the string 4 times as long. How does the swing time change? (a) it becomes 4 times (b) it stays the same (c) it halves (d) it doubles
23. 23.🧺 Which of these is needed for the pendulum? (a) a stopwatch (b) a magnet (c) a mirror (d) turmeric powder
24. 24.🧺 Which of these is not needed for the pendulum? (a) a ruler (b) turmeric powder (c) a string (d) a pencil and tape
25. 25.🕰️ A pendulum takes 1 second for one swing. How many swings does it make in 7 seconds?
26. 26.⚖️ 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 change it (c) we measure it
27. 27.⚖️ Fair test — does a longer string make the pendulum swing more slowly? True or false: how far we pull it back is what we measure. (a) True (b) False
28. 28.⚖️ 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
29. 29.🛟 What is a safe bob for a home pendulum? (a) a heavy brick (b) a sharp tool (c) a small nut or washer (d) a glass bottle
30. 30.🧺 Three of these are needed for the pendulum. Which one is NOT needed? (a) turmeric powder (b) a ruler (c) a heavy nut or washer (d) a string
31. 31.⚖️ 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) True (b) False
32. 32.⚖️ 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 change it (b) we measure it (c) we keep it the same
33. 33.🧺 Do we need a mirror for the pendulum? (a) not needed (b) needed
34. 34.🧺 Do we need a magnet for the pendulum? (a) needed (b) not needed
35. 35.🧺 Do we need turmeric powder for the pendulum? (a) not needed (b) needed
36. 36.🧺 Do we need a string for the pendulum? (a) needed (b) not needed
37. 37.🕰️ A pendulum makes 20 swings in 20 seconds. How many seconds does one swing take?
38. 38.True or false: yeast is not needed for the pendulum. (a) True (b) False
39. 39.🕰️ A pendulum takes 2 seconds for one swing. How many swings does it make in 14 seconds?
40. 40.🧺 Which of these is needed for the pendulum? (a) a magnet (b) a string (c) a battery cell (d) a balloon

Free science experiments lessons, practice and worksheets at talentjr.in/science-experiments-for-kids