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Video Editing Worksheet: Video Length

Animation and design lesson 21: Video length sums · Set 11 · 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 580 seconds long. How long is that in minutes and seconds? (a) 5 min 80 s (b) 9 min 10 s (c) 9 min 40 s (d) 10 min 40 s
  2. 2.⏱️ When you put clips one after another, the video length is … (a) the shortest clip (b) the sum of the clips (c) the longest clip (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 44-second clip is sped up to 4× speed. How long does it last now (in seconds)?
  5. 5.⏱️ A video is 540 seconds long. How long is that in minutes and seconds? (a) 9 min 30 s (b) 10 min 0 s (c) 5 min 40 s (d) 9 min 0 s
  6. 6.⏱️ Your video must be 60 seconds long. Your clips add up to 40 seconds. How many more seconds of video do you need?
  7. 7.⏱️ How many seconds are in 1 minute? (a) 60 (b) 10 (c) 30 (d) 100
  8. 8.⏱️ A video has three clips of 11, 36 and 45 seconds. How long is the video (in seconds)?
  9. 9.⏱️ A video has three clips of 11, 34 and 12 seconds. How long is the video (in seconds)?
  10. 10.⏱️ A video is 185 seconds long. How long is that in minutes and seconds? (a) 4 min 5 s (b) 1 min 85 s (c) 3 min 35 s (d) 3 min 5 s
  11. 11.⏱️ Your video must be 60 seconds long. Your clips add up to 7 seconds. How many more seconds of video do you need?
  12. 12.⏱️ A video has three clips of 10, 57 and 12 seconds. How long is the video (in seconds)?
  13. 13.⏱️ A video is 545 seconds long. How long is that in minutes and seconds? (a) 9 min 35 s (b) 9 min 5 s (c) 5 min 45 s (d) 10 min 5 s
  14. 14.⏱️ Your video must be 90 seconds long. Your clips add up to 41 seconds. How many more seconds of video do you need?
  15. 15.⏱️ Your video must be 60 seconds long. Your clips add up to 47 seconds. How many more seconds of video do you need?
  16. 16.⏱️ A video has three clips of 45, 9 and 29 seconds. How long is the video (in seconds)?
  17. 17.⏱️ Your video must be 60 seconds long. Your clips add up to 36 seconds. How many more seconds of video do you need?
  18. 18.⏱️ A 99-second clip is sped up to 3× speed. How long does it last now (in seconds)?
  19. 19.⏱️ A video has three clips of 37, 27 and 38 seconds. How long is the video (in seconds)?
  20. 20.⏱️ How many seconds is 6 minutes 30 seconds?
  21. 21.⏱️ A 40-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  22. 22.⏱️ A video is 435 seconds long. How long is that in minutes and seconds? (a) 7 min 15 s (b) 8 min 15 s (c) 7 min 45 s (d) 4 min 35 s
  23. 23.⏱️ How many seconds is 4 minutes 54 seconds?
  24. 24.⏱️ How many seconds is 5 minutes 45 seconds?
  25. 25.⏱️ An 80-second clip is sped up to 4× speed. How long does it last now (in seconds)?
  26. 26.⏱️ A 13-second clip is slowed to half speed (slow motion). How long does it last now (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.⏱️ How many seconds is 5 minutes 12 seconds?
  29. 29.⏱️ A 70-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  30. 30.⏱️ How many seconds is 3 minutes 15 seconds?
  31. 31.⏱️ A video has three clips of 31, 15 and 34 seconds. How long is the video (in seconds)?
  32. 32.⏱️ A video is 420 seconds long. How long is that in minutes and seconds? (a) 7 min 30 s (b) 4 min 20 s (c) 8 min 0 s (d) 7 min 0 s
  33. 33.⏱️ How many seconds is 7 minutes 6 seconds?
  34. 34.⏱️ A 3-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  35. 35.⏱️ Your video must be 120 seconds long. Your clips add up to 18 seconds. How many more seconds of video do you need?
  36. 36.⏱️ A 96-second clip is sped up to 4× speed. How long does it last now (in seconds)?
  37. 37.⏱️ Your video must be 120 seconds long. Your clips add up to 65 seconds. How many more seconds of video do you need?
  38. 38.⏱️ A video has three clips of 45, 57 and 13 seconds. How long is the video (in seconds)?
  39. 39.⏱️ A video has three clips of 26, 23 and 33 seconds. How long is the video (in seconds)?
  40. 40.⏱️ A video has three clips of 60, 8 and 34 seconds. How long is the video (in seconds)?

Answer key

  1. 9 min 40 s
  2. the sum of the clips
  3. 14
  4. 11
  5. 9 min 0 s
  6. 20
  7. 60
  8. 92
  9. 57
  10. 3 min 5 s
  11. 53
  12. 79
  13. 9 min 5 s
  14. 49
  15. 13
  16. 83
  17. 24
  18. 33
  19. 102
  20. 390
  21. 20
  22. 7 min 15 s
  23. 294
  24. 345
  25. 20
  26. 26
  27. 8
  28. 312
  29. 35
  30. 195
  31. 80
  32. 7 min 0 s
  33. 426
  34. 6
  35. 102
  36. 24
  37. 55
  38. 115
  39. 82
  40. 102

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