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Video Editing Worksheet: Video Length

Animation and design lesson 21: Video length sums · Set 193 · 40 questions
TalentJR

Creator's tip (Add the clips): Video length = the clips added up. Minutes → seconds: × 60, then add the extra seconds. Seconds → minutes: take away 60 as many times as it fits. Still needed = target − what you have; 2× speed halves the time, half speed doubles it.

NameDateTime takenScore ___ / 40
  1. 1.⏱️ How many seconds is 5 minutes 30 seconds?
  2. 2.⏱️ A video has three clips of 20, 45 and 54 seconds. How long is the video (in seconds)?
  3. 3.⏱️ A video is 240 seconds long. How long is that in minutes and seconds? (a) 4 min 30 s (b) 5 min 0 s (c) 4 min 0 s (d) 2 min 40 s
  4. 4.⏱️ When you put clips one after another, the video length is … (a) always 1 minute (b) the sum of the clips (c) the shortest clip (d) the longest clip
  5. 5.⏱️ How many seconds is 6 minutes 12 seconds?
  6. 6.⏱️ A 22-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  7. 7.⏱️ A 26-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  8. 8.⏱️ How many seconds are in 1 minute? (a) 100 (b) 30 (c) 60 (d) 10
  9. 9.⏱️ An 84-second clip is sped up to 4× speed. How long does it last now (in seconds)?
  10. 10.⏱️ How many seconds is 8 minutes 1 second?
  11. 11.⏱️ A 68-second clip is sped up to 4× speed. How long does it last now (in seconds)?
  12. 12.⏱️ A video has three clips of 33, 14 and 31 seconds. How long is the video (in seconds)?
  13. 13.⏱️ An 8-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  14. 14.⏱️ A video has three clips of 48, 28 and 55 seconds. How long is the video (in seconds)?
  15. 15.⏱️ A video has three clips of 51, 53 and 48 seconds. How long is the video (in seconds)?
  16. 16.⏱️ A 3-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  17. 17.⏱️ A video is 70 seconds long. How long is that in minutes and seconds? (a) 3 min 10 s (b) 1 min 10 s (c) 2 min 10 s (d) 1 min 40 s
  18. 18.⏱️ A video is 360 seconds long. How long is that in minutes and seconds? (a) 3 min 60 s (b) 7 min 0 s (c) 6 min 30 s (d) 6 min 0 s
  19. 19.⏱️ A video has three clips of 45, 9 and 49 seconds. How long is the video (in seconds)?
  20. 20.⏱️ Your video must be 180 seconds long. Your clips add up to 96 seconds. How many more seconds of video do you need?
  21. 21.⏱️ A video is 115 seconds long. How long is that in minutes and seconds? (a) 1 min 25 s (b) 2 min 55 s (c) 1 min 55 s (d) 1 min 15 s
  22. 22.⏱️ A 6-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  23. 23.⏱️ How many seconds is 8 minutes 8 seconds?
  24. 24.⏱️ A video has three clips of 20, 28 and 24 seconds. How long is the video (in seconds)?
  25. 25.⏱️ A video has three clips of 54, 11 and 36 seconds. How long is the video (in seconds)?
  26. 26.⏱️ Your video must be 120 seconds long. Your clips add up to 38 seconds. How many more seconds of video do you need?
  27. 27.⏱️ A 64-second clip is sped up to 4× speed. How long does it last now (in seconds)?
  28. 28.⏱️ Your video must be 60 seconds long. Your clips add up to 22 seconds. How many more seconds of video do you need?
  29. 29.⏱️ How many seconds is 4 minutes 39 seconds?
  30. 30.⏱️ A video is 535 seconds long. How long is that in minutes and seconds? (a) 8 min 55 s (b) 8 min 25 s (c) 5 min 35 s (d) 9 min 55 s
  31. 31.⏱️ Your video must be 60 seconds long. Your clips add up to 12 seconds. How many more seconds of video do you need?
  32. 32.⏱️ A video has three clips of 57, 53 and 37 seconds. How long is the video (in seconds)?
  33. 33.⏱️ A video has three clips of 19, 39 and 47 seconds. How long is the video (in seconds)?
  34. 34.⏱️ A 70-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  35. 35.⏱️ A 22-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  36. 36.⏱️ How many seconds is 8 minutes 48 seconds?
  37. 37.⏱️ A video is 540 seconds long. How long is that in minutes and seconds? (a) 5 min 40 s (b) 9 min 30 s (c) 10 min 0 s (d) 9 min 0 s
  38. 38.⏱️ A video has three clips of 29, 19 and 9 seconds. How long is the video (in seconds)?
  39. 39.⏱️ A video is 180 seconds long. How long is that in minutes and seconds? (a) 3 min 0 s (b) 1 min 80 s (c) 4 min 0 s (d) 3 min 30 s
  40. 40.⏱️ A 17-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?

Answer key

  1. 330
  2. 119
  3. 4 min 0 s
  4. the sum of the clips
  5. 372
  6. 11
  7. 13
  8. 60
  9. 21
  10. 481
  11. 17
  12. 78
  13. 16
  14. 131
  15. 152
  16. 6
  17. 1 min 10 s
  18. 6 min 0 s
  19. 103
  20. 84
  21. 1 min 55 s
  22. 12
  23. 488
  24. 72
  25. 101
  26. 82
  27. 16
  28. 38
  29. 279
  30. 8 min 55 s
  31. 48
  32. 147
  33. 105
  34. 35
  35. 44
  36. 528
  37. 9 min 0 s
  38. 57
  39. 3 min 0 s
  40. 34

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