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Video Editing Worksheet: Video Length

Animation and design lesson 21: Video length sums · Set 138 · 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 120 seconds long. How long is that in minutes and seconds? (a) 2 min 0 s (b) 3 min 0 s (c) 2 min 30 s (d) 1 min 20 s
  2. 2.⏱️ A 12-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  3. 3.⏱️ An 87-second clip is sped up to 3× speed. How long does it last now (in seconds)?
  4. 4.⏱️ How many seconds is 3 minutes 48 seconds?
  5. 5.⏱️ A video has three clips of 40, 18 and 5 seconds. How long is the video (in seconds)?
  6. 6.⏱️ How many seconds is 3 minutes 1 second?
  7. 7.⏱️ A 74-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  8. 8.⏱️ How many seconds is 1 minute 40 seconds?
  9. 9.⏱️ A 14-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  10. 10.⏱️ How many seconds is 8 minutes 25 seconds?
  11. 11.⏱️ Your video must be 120 seconds long. Your clips add up to 78 seconds. How many more seconds of video do you need?
  12. 12.⏱️ A 26-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  13. 13.⏱️ A video is 470 seconds long. How long is that in minutes and seconds? (a) 4 min 70 s (b) 8 min 50 s (c) 7 min 50 s (d) 7 min 20 s
  14. 14.⏱️ 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
  15. 15.⏱️ A 45-second clip is sped up to 3× speed. How long does it last now (in seconds)?
  16. 16.⏱️ Your video must be 120 seconds long. Your clips add up to 44 seconds. How many more seconds of video do you need?
  17. 17.⏱️ 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) 3 min 15 s (d) 6 min 15 s
  18. 18.⏱️ A video has three clips of 40, 49 and 49 seconds. How long is the video (in seconds)?
  19. 19.⏱️ A 96-second clip is sped up to 3× speed. How long does it last now (in seconds)?
  20. 20.⏱️ How many seconds is 2 minutes 16 seconds?
  21. 21.⏱️ A video is 325 seconds long. How long is that in minutes and seconds? (a) 5 min 55 s (b) 6 min 25 s (c) 3 min 25 s (d) 5 min 25 s
  22. 22.⏱️ A video is 265 seconds long. How long is that in minutes and seconds? (a) 4 min 55 s (b) 5 min 25 s (c) 2 min 65 s (d) 4 min 25 s
  23. 23.⏱️ A 26-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  24. 24.⏱️ How many seconds is 9 minutes 13 seconds?
  25. 25.⏱️ A video is 445 seconds long. How long is that in minutes and seconds? (a) 7 min 25 s (b) 4 min 45 s (c) 8 min 25 s (d) 7 min 55 s
  26. 26.⏱️ A video is 185 seconds long. How long is that in minutes and seconds? (a) 3 min 35 s (b) 3 min 5 s (c) 1 min 85 s (d) 4 min 5 s
  27. 27.⏱️ A video has three clips of 57, 35 and 17 seconds. How long is the video (in seconds)?
  28. 28.⏱️ A video has three clips of 42, 33 and 12 seconds. How long is the video (in seconds)?
  29. 29.⏱️ How many seconds is 2 minutes 41 seconds?
  30. 30.⏱️ How many seconds is 5 minutes 38 seconds?
  31. 31.⏱️ A 4-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  32. 32.⏱️ Your video must be 60 seconds long. Your clips add up to 8 seconds. How many more seconds of video do you need?
  33. 33.⏱️ A 3-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  34. 34.⏱️ A video has three clips of 28, 23 and 52 seconds. How long is the video (in seconds)?
  35. 35.⏱️ Your video must be 60 seconds long. Your clips add up to 14 seconds. How many more seconds of video do you need?
  36. 36.⏱️ A video has three clips of 7, 18 and 56 seconds. How long is the video (in seconds)?
  37. 37.⏱️ How many seconds is 1 minute 8 seconds?
  38. 38.⏱️ A 28-second clip is sped up to 4× speed. How long does it last now (in seconds)?
  39. 39.⏱️ A video is 250 seconds long. How long is that in minutes and seconds? (a) 4 min 10 s (b) 5 min 10 s (c) 2 min 50 s (d) 4 min 40 s
  40. 40.⏱️ How many seconds is 2 minutes 40 seconds?

Answer key

  1. 2 min 0 s
  2. 24
  3. 29
  4. 228
  5. 63
  6. 181
  7. 37
  8. 100
  9. 7
  10. 505
  11. 42
  12. 52
  13. 7 min 50 s
  14. the sum of the clips
  15. 15
  16. 76
  17. 5 min 15 s
  18. 138
  19. 32
  20. 136
  21. 5 min 25 s
  22. 4 min 25 s
  23. 13
  24. 553
  25. 7 min 25 s
  26. 3 min 5 s
  27. 109
  28. 87
  29. 161
  30. 338
  31. 8
  32. 52
  33. 6
  34. 103
  35. 46
  36. 81
  37. 68
  38. 7
  39. 4 min 10 s
  40. 160

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