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Video Editing Worksheet: Video Length

Animation and design lesson 21: Video length sums · Set 83 · 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 has three clips of 19, 11 and 16 seconds. How long is the video (in seconds)?
  2. 2.⏱️ How many seconds is 2 minutes 27 seconds?
  3. 3.⏱️ How many seconds are in 1 minute? (a) 10 (b) 60 (c) 100 (d) 30
  4. 4.⏱️ A video is 375 seconds long. How long is that in minutes and seconds? (a) 3 min 75 s (b) 7 min 15 s (c) 6 min 45 s (d) 6 min 15 s
  5. 5.⏱️ How many seconds is 8 minutes 43 seconds?
  6. 6.⏱️ A 36-second clip is sped up to 3× speed. How long does it last now (in seconds)?
  7. 7.⏱️ How many seconds is 2 minutes 33 seconds?
  8. 8.⏱️ How many seconds is 8 minutes 34 seconds?
  9. 9.⏱️ A video has three clips of 54, 45 and 58 seconds. How long is the video (in seconds)?
  10. 10.⏱️ Your video must be 120 seconds long. Your clips add up to 30 seconds. How many more seconds of video do you need?
  11. 11.⏱️ A video is 495 seconds long. How long is that in minutes and seconds? (a) 8 min 15 s (b) 9 min 15 s (c) 8 min 45 s (d) 4 min 95 s
  12. 12.⏱️ A 74-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  13. 13.⏱️ A 29-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  14. 14.⏱️ Your video must be 90 seconds long. Your clips add up to 58 seconds. How many more seconds of video do you need?
  15. 15.⏱️ A video has three clips of 5, 46 and 60 seconds. How long is the video (in seconds)?
  16. 16.⏱️ A 10-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  17. 17.⏱️ Your video must be 120 seconds long. Your clips add up to 44 seconds. How many more seconds of video do you need?
  18. 18.⏱️ A video has three clips of 43, 23 and 27 seconds. How long is the video (in seconds)?
  19. 19.⏱️ A 78-second clip is sped up to 3× speed. How long does it last now (in seconds)?
  20. 20.⏱️ A video is 190 seconds long. How long is that in minutes and seconds? (a) 3 min 40 s (b) 4 min 10 s (c) 1 min 90 s (d) 3 min 10 s
  21. 21.⏱️ A 25-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  22. 22.⏱️ How many seconds is 5 minutes 11 seconds?
  23. 23.⏱️ How many seconds is 5 minutes 12 seconds?
  24. 24.⏱️ When you put clips one after another, the video length is … (a) the shortest clip (b) always 1 minute (c) the sum of the clips (d) the longest clip
  25. 25.⏱️ A video has three clips of 44, 16 and 18 seconds. How long is the video (in seconds)?
  26. 26.⏱️ Your video must be 120 seconds long. Your clips add up to 19 seconds. How many more seconds of video do you need?
  27. 27.⏱️ Your video must be 180 seconds long. Your clips add up to 137 seconds. How many more seconds of video do you need?
  28. 28.⏱️ A 96-second clip is sped up to 4× speed. How long does it last now (in seconds)?
  29. 29.⏱️ A 52-second clip is sped up to 4× speed. How long does it last now (in seconds)?
  30. 30.⏱️ How many seconds is 4 minutes 4 seconds?
  31. 31.⏱️ A video has three clips of 35, 55 and 35 seconds. How long is the video (in seconds)?
  32. 32.⏱️ A video has three clips of 45, 45 and 38 seconds. How long is the video (in seconds)?
  33. 33.⏱️ Your video must be 180 seconds long. Your clips add up to 133 seconds. How many more seconds of video do you need?
  34. 34.⏱️ A 21-second clip is sped up to 3× speed. How long does it last now (in seconds)?
  35. 35.⏱️ How many seconds is 1 minute 8 seconds?
  36. 36.⏱️ A video has three clips of 15, 10 and 41 seconds. How long is the video (in seconds)?
  37. 37.⏱️ Your video must be 60 seconds long. Your clips add up to 37 seconds. How many more seconds of video do you need?
  38. 38.⏱️ A video is 570 seconds long. How long is that in minutes and seconds? (a) 9 min 0 s (b) 5 min 70 s (c) 9 min 30 s (d) 10 min 30 s
  39. 39.⏱️ Your video must be 90 seconds long. Your clips add up to 77 seconds. How many more seconds of video do you need?
  40. 40.⏱️ An 8-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?

Answer key

  1. 46
  2. 147
  3. 60
  4. 6 min 15 s
  5. 523
  6. 12
  7. 153
  8. 514
  9. 157
  10. 90
  11. 8 min 15 s
  12. 37
  13. 58
  14. 32
  15. 111
  16. 20
  17. 76
  18. 93
  19. 26
  20. 3 min 10 s
  21. 50
  22. 311
  23. 312
  24. the sum of the clips
  25. 78
  26. 101
  27. 43
  28. 24
  29. 13
  30. 244
  31. 125
  32. 128
  33. 47
  34. 7
  35. 68
  36. 66
  37. 23
  38. 9 min 30 s
  39. 13
  40. 16

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