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Video Editing Worksheet: Video Length

Animation and design lesson 21: Video length sums · Set 208 · 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.⏱️ A video is 525 seconds long. How long is that in minutes and seconds? (a) 8 min 15 s (b) 9 min 45 s (c) 8 min 45 s (d) 5 min 25 s
  2. 2.⏱️ When you put clips one after another, the video length is … (a) the shortest clip (b) the longest clip (c) the sum of the clips (d) always 1 minute
  3. 3.⏱️ A 7-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  4. 4.⏱️ A 14-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  5. 5.⏱️ A video has three clips of 24, 53 and 31 seconds. How long is the video (in seconds)?
  6. 6.⏱️ How many seconds is 6 minutes 30 seconds?
  7. 7.⏱️ How many seconds is 7 minutes 36 seconds?
  8. 8.⏱️ A video is 125 seconds long. How long is that in minutes and seconds? (a) 2 min 5 s (b) 1 min 25 s (c) 2 min 35 s (d) 3 min 5 s
  9. 9.⏱️ A 13-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  10. 10.⏱️ A 16-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  11. 11.⏱️ Your video must be 60 seconds long. Your clips add up to 16 seconds. How many more seconds of video do you need?
  12. 12.⏱️ A video is 495 seconds long. How long is that in minutes and seconds? (a) 8 min 45 s (b) 8 min 15 s (c) 4 min 95 s (d) 9 min 15 s
  13. 13.⏱️ A 24-second clip is sped up to 4× speed. How long does it last now (in seconds)?
  14. 14.⏱️ A video has three clips of 12, 20 and 39 seconds. How long is the video (in seconds)?
  15. 15.⏱️ A video has three clips of 40, 33 and 43 seconds. How long is the video (in seconds)?
  16. 16.⏱️ An 11-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  17. 17.⏱️ A 16-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  18. 18.⏱️ How many seconds is 6 minutes 53 seconds?
  19. 19.⏱️ Speeding a clip up to 2× makes it … (a) half as long (b) silent (c) twice as long (d) the same length
  20. 20.⏱️ A video is 350 seconds long. How long is that in minutes and seconds? (a) 3 min 50 s (b) 6 min 50 s (c) 5 min 20 s (d) 5 min 50 s
  21. 21.⏱️ A 3-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  22. 22.⏱️ A 74-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  23. 23.⏱️ A video has three clips of 51, 35 and 37 seconds. How long is the video (in seconds)?
  24. 24.⏱️ How many seconds are in 1 minute? (a) 30 (b) 10 (c) 60 (d) 100
  25. 25.⏱️ Your video must be 180 seconds long. Your clips add up to 122 seconds. How many more seconds of video do you need?
  26. 26.⏱️ 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
  27. 27.⏱️ Your video must be 180 seconds long. Your clips add up to 54 seconds. How many more seconds of video do you need?
  28. 28.⏱️ A 28-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  29. 29.⏱️ Your video must be 90 seconds long. Your clips add up to 28 seconds. How many more seconds of video do you need?
  30. 30.⏱️ Your video must be 90 seconds long. Your clips add up to 26 seconds. How many more seconds of video do you need?
  31. 31.⏱️ A video has three clips of 17, 18 and 31 seconds. How long is the video (in seconds)?
  32. 32.⏱️ A video has three clips of 43, 42 and 18 seconds. How long is the video (in seconds)?
  33. 33.⏱️ A 64-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  34. 34.⏱️ A video has three clips of 23, 45 and 24 seconds. How long is the video (in seconds)?
  35. 35.⏱️ How many seconds is 2 minutes 57 seconds?
  36. 36.⏱️ A video has three clips of 34, 39 and 13 seconds. How long is the video (in seconds)?
  37. 37.⏱️ A 9-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  38. 38.⏱️ A 54-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  39. 39.⏱️ A video has three clips of 32, 14 and 13 seconds. How long is the video (in seconds)?
  40. 40.⏱️ A video is 185 seconds long. How long is that in minutes and seconds? (a) 1 min 85 s (b) 3 min 5 s (c) 4 min 5 s (d) 3 min 35 s

Answer key

  1. 8 min 45 s
  2. the sum of the clips
  3. 14
  4. 28
  5. 108
  6. 390
  7. 456
  8. 2 min 5 s
  9. 26
  10. 32
  11. 44
  12. 8 min 15 s
  13. 6
  14. 71
  15. 116
  16. 22
  17. 8
  18. 413
  19. half as long
  20. 5 min 50 s
  21. 6
  22. 37
  23. 123
  24. 60
  25. 58
  26. 5 min 15 s
  27. 126
  28. 56
  29. 62
  30. 64
  31. 66
  32. 103
  33. 32
  34. 92
  35. 177
  36. 86
  37. 18
  38. 27
  39. 59
  40. 3 min 5 s

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