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Video Editing Worksheet: Video Length

Animation and design lesson 21: Video length sums · Set 145 · 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 1 minute 26 seconds?
  2. 2.⏱️ A video is 240 seconds long. How long is that in minutes and seconds? (a) 2 min 40 s (b) 4 min 0 s (c) 5 min 0 s (d) 4 min 30 s
  3. 3.⏱️ When you put clips one after another, the video length is … (a) the longest clip (b) the shortest clip (c) the sum of the clips (d) always 1 minute
  4. 4.⏱️ Your video must be 60 seconds long. Your clips add up to 5 seconds. How many more seconds of video do you need?
  5. 5.⏱️ Your video must be 60 seconds long. Your clips add up to 40 seconds. How many more seconds of video do you need?
  6. 6.⏱️ A video has three clips of 21, 43 and 5 seconds. How long is the video (in seconds)?
  7. 7.⏱️ How many seconds are in 1 minute? (a) 30 (b) 100 (c) 60 (d) 10
  8. 8.⏱️ How many seconds is 5 minutes 42 seconds?
  9. 9.⏱️ Your video must be 90 seconds long. Your clips add up to 85 seconds. How many more seconds of video do you need?
  10. 10.⏱️ A 25-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  11. 11.⏱️ A 13-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  12. 12.⏱️ A 30-second clip is sped up to 3× speed. How long does it last now (in seconds)?
  13. 13.⏱️ A video has three clips of 49, 7 and 13 seconds. How long is the video (in seconds)?
  14. 14.⏱️ A video is 225 seconds long. How long is that in minutes and seconds? (a) 2 min 25 s (b) 3 min 15 s (c) 3 min 45 s (d) 4 min 45 s
  15. 15.⏱️ How many seconds is 8 minutes 8 seconds?
  16. 16.⏱️ A video is 155 seconds long. How long is that in minutes and seconds? (a) 1 min 55 s (b) 2 min 5 s (c) 3 min 35 s (d) 2 min 35 s
  17. 17.⏱️ How many seconds is 5 minutes 55 seconds?
  18. 18.⏱️ How many seconds is 3 minutes 4 seconds?
  19. 19.⏱️ Your video must be 60 seconds long. Your clips add up to 51 seconds. How many more seconds of video do you need?
  20. 20.⏱️ A video is 315 seconds long. How long is that in minutes and seconds? (a) 5 min 15 s (b) 5 min 45 s (c) 6 min 15 s (d) 3 min 15 s
  21. 21.⏱️ A video is 275 seconds long. How long is that in minutes and seconds? (a) 4 min 5 s (b) 2 min 75 s (c) 4 min 35 s (d) 5 min 35 s
  22. 22.⏱️ How many seconds is 8 minutes 56 seconds?
  23. 23.⏱️ A video has three clips of 5, 39 and 36 seconds. How long is the video (in seconds)?
  24. 24.⏱️ A video has three clips of 42, 22 and 18 seconds. How long is the video (in seconds)?
  25. 25.⏱️ A 68-second clip is sped up to 4× speed. How long does it last now (in seconds)?
  26. 26.⏱️ A video has three clips of 27, 11 and 6 seconds. How long is the video (in seconds)?
  27. 27.⏱️ A 4-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  28. 28.⏱️ A 108-second clip is sped up to 3× speed. How long does it last now (in seconds)?
  29. 29.⏱️ How many seconds is 1 minute 16 seconds?
  30. 30.⏱️ A 78-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  31. 31.⏱️ A 136-second clip is sped up to 4× speed. How long does it last now (in seconds)?
  32. 32.⏱️ A video has three clips of 46, 49 and 37 seconds. How long is the video (in seconds)?
  33. 33.⏱️ How many seconds is 7 minutes 59 seconds?
  34. 34.⏱️ A 27-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  35. 35.⏱️ A 29-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  36. 36.⏱️ 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
  37. 37.⏱️ A 10-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  38. 38.⏱️ A 22-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  39. 39.⏱️ A video is 125 seconds long. How long is that in minutes and seconds? (a) 2 min 35 s (b) 3 min 5 s (c) 2 min 5 s (d) 1 min 25 s
  40. 40.⏱️ Your video must be 90 seconds long. Your clips add up to 17 seconds. How many more seconds of video do you need?

Answer key

  1. 86
  2. 4 min 0 s
  3. the sum of the clips
  4. 55
  5. 20
  6. 69
  7. 60
  8. 342
  9. 5
  10. 50
  11. 26
  12. 10
  13. 69
  14. 3 min 45 s
  15. 488
  16. 2 min 35 s
  17. 355
  18. 184
  19. 9
  20. 5 min 15 s
  21. 4 min 35 s
  22. 536
  23. 80
  24. 82
  25. 17
  26. 44
  27. 8
  28. 36
  29. 76
  30. 39
  31. 34
  32. 132
  33. 479
  34. 54
  35. 58
  36. 1 min 55 s
  37. 5
  38. 11
  39. 2 min 5 s
  40. 73

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