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Video Editing Worksheet: Video Length

Animation and design lesson 21: Video length sums · Set 285 · 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 51 seconds?
  2. 2.⏱️ When you put clips one after another, the video length is … (a) the longest clip (b) always 1 minute (c) the shortest clip (d) the sum of the clips
  3. 3.⏱️ A 42-second clip is sped up to 3× speed. How long does it last now (in seconds)?
  4. 4.⏱️ How many seconds is 4 minutes 28 seconds?
  5. 5.⏱️ A video has three clips of 31, 13 and 5 seconds. How long is the video (in seconds)?
  6. 6.⏱️ How many seconds are in 1 minute? (a) 10 (b) 60 (c) 30 (d) 100
  7. 7.⏱️ Your video must be 120 seconds long. Your clips add up to 72 seconds. How many more seconds of video do you need?
  8. 8.⏱️ A 12-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  9. 9.⏱️ How many seconds is 4 minutes 7 seconds?
  10. 10.⏱️ Your video must be 120 seconds long. Your clips add up to 32 seconds. How many more seconds of video do you need?
  11. 11.⏱️ A 74-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  12. 12.⏱️ A 10-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  13. 13.⏱️ A 25-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  14. 14.⏱️ Speeding a clip up to 2× makes it … (a) silent (b) the same length (c) half as long (d) twice as long
  15. 15.⏱️ A video has three clips of 16, 37 and 12 seconds. How long is the video (in seconds)?
  16. 16.⏱️ A 36-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  17. 17.⏱️ How many seconds is 9 minutes 44 seconds?
  18. 18.⏱️ A video has three clips of 55, 26 and 51 seconds. How long is the video (in seconds)?
  19. 19.⏱️ Your video must be 90 seconds long. Your clips add up to 44 seconds. How many more seconds of video do you need?
  20. 20.⏱️ A 16-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  21. 21.⏱️ A 58-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  22. 22.⏱️ Your video must be 180 seconds long. Your clips add up to 82 seconds. How many more seconds of video do you need?
  23. 23.⏱️ A video is 70 seconds long. How long is that in minutes and seconds? (a) 2 min 10 s (b) 3 min 10 s (c) 1 min 40 s (d) 1 min 10 s
  24. 24.⏱️ A 105-second clip is sped up to 3× speed. How long does it last now (in seconds)?
  25. 25.⏱️ A video has three clips of 9, 31 and 32 seconds. How long is the video (in seconds)?
  26. 26.⏱️ A 15-second clip is sped up to 3× speed. How long does it last now (in seconds)?
  27. 27.⏱️ A video is 550 seconds long. How long is that in minutes and seconds? (a) 10 min 10 s (b) 9 min 40 s (c) 9 min 10 s (d) 5 min 50 s
  28. 28.⏱️ A 6-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  29. 29.⏱️ A 120-second clip is sped up to 4× speed. How long does it last now (in seconds)?
  30. 30.⏱️ Your video must be 120 seconds long. Your clips add up to 47 seconds. How many more seconds of video do you need?
  31. 31.⏱️ A video has three clips of 57, 16 and 20 seconds. How long is the video (in seconds)?
  32. 32.⏱️ How many seconds is 4 minutes 54 seconds?
  33. 33.⏱️ How many seconds is 8 minutes 47 seconds?
  34. 34.⏱️ A 29-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  35. 35.⏱️ How many seconds is 3 minutes 48 seconds?
  36. 36.⏱️ A video has three clips of 11, 41 and 30 seconds. How long is the video (in seconds)?
  37. 37.⏱️ An 11-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  38. 38.⏱️ A video has three clips of 33, 56 and 41 seconds. How long is the video (in seconds)?
  39. 39.⏱️ A video has three clips of 25, 11 and 31 seconds. How long is the video (in seconds)?
  40. 40.⏱️ How many seconds is 8 minutes 43 seconds?

Answer key

  1. 111
  2. the sum of the clips
  3. 14
  4. 268
  5. 49
  6. 60
  7. 48
  8. 24
  9. 247
  10. 88
  11. 37
  12. 20
  13. 50
  14. half as long
  15. 65
  16. 18
  17. 584
  18. 132
  19. 46
  20. 8
  21. 29
  22. 98
  23. 1 min 10 s
  24. 35
  25. 72
  26. 5
  27. 9 min 10 s
  28. 12
  29. 30
  30. 73
  31. 93
  32. 294
  33. 527
  34. 58
  35. 228
  36. 82
  37. 22
  38. 130
  39. 67
  40. 523

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