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Video Editing Worksheet: Video Length

Animation and design lesson 21: Video length sums · Set 167 · 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 9-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  2. 2.⏱️ Your video must be 60 seconds long. Your clips add up to 51 seconds. How many more seconds of video do you need?
  3. 3.⏱️ Your video must be 180 seconds long. Your clips add up to 76 seconds. How many more seconds of video do you need?
  4. 4.⏱️ An 18-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  5. 5.⏱️ A video has three clips of 27, 15 and 36 seconds. How long is the video (in seconds)?
  6. 6.⏱️ A video is 585 seconds long. How long is that in minutes and seconds? (a) 9 min 15 s (b) 9 min 45 s (c) 5 min 85 s (d) 10 min 45 s
  7. 7.⏱️ When you put clips one after another, the video length is … (a) always 1 minute (b) the sum of the clips (c) the shortest clip (d) the longest clip
  8. 8.⏱️ A 72-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  9. 9.⏱️ How many seconds are in 1 minute? (a) 30 (b) 10 (c) 100 (d) 60
  10. 10.⏱️ A 99-second clip is sped up to 3× speed. How long does it last now (in seconds)?
  11. 11.⏱️ How many seconds is 9 minutes 10 seconds?
  12. 12.⏱️ A 14-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  13. 13.⏱️ A video is 65 seconds long. How long is that in minutes and seconds? (a) 3 min 5 s (b) 2 min 5 s (c) 1 min 5 s (d) 1 min 35 s
  14. 14.⏱️ How many seconds is 5 minutes 44 seconds?
  15. 15.⏱️ A 50-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  16. 16.⏱️ How many seconds is 1 minute 47 seconds?
  17. 17.⏱️ Your video must be 90 seconds long. Your clips add up to 69 seconds. How many more seconds of video do you need?
  18. 18.⏱️ A video has three clips of 21, 6 and 40 seconds. How long is the video (in seconds)?
  19. 19.⏱️ Your video must be 60 seconds long. Your clips add up to 29 seconds. How many more seconds of video do you need?
  20. 20.⏱️ A video has three clips of 30, 31 and 45 seconds. How long is the video (in seconds)?
  21. 21.⏱️ A 26-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  22. 22.⏱️ A video has three clips of 26, 25 and 60 seconds. How long is the video (in seconds)?
  23. 23.⏱️ An 11-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  24. 24.⏱️ A 54-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  25. 25.⏱️ A video is 465 seconds long. How long is that in minutes and seconds? (a) 4 min 65 s (b) 7 min 15 s (c) 7 min 45 s (d) 8 min 45 s
  26. 26.⏱️ Your video must be 120 seconds long. Your clips add up to 97 seconds. How many more seconds of video do you need?
  27. 27.⏱️ A 52-second clip is sped up to 4× speed. How long does it last now (in seconds)?
  28. 28.⏱️ Your video must be 180 seconds long. Your clips add up to 46 seconds. How many more seconds of video do you need?
  29. 29.⏱️ A video has three clips of 5, 37 and 21 seconds. How long is the video (in seconds)?
  30. 30.⏱️ A video is 180 seconds long. How long is that in minutes and seconds? (a) 3 min 30 s (b) 4 min 0 s (c) 3 min 0 s (d) 1 min 80 s
  31. 31.⏱️ An 8-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  32. 32.⏱️ How many seconds is 2 minutes 39 seconds?
  33. 33.⏱️ A 25-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  34. 34.⏱️ A video is 125 seconds long. How long is that in minutes and seconds? (a) 2 min 5 s (b) 3 min 5 s (c) 1 min 25 s (d) 2 min 35 s
  35. 35.⏱️ A video has three clips of 15, 43 and 43 seconds. How long is the video (in seconds)?
  36. 36.⏱️ A video has three clips of 28, 25 and 46 seconds. How long is the video (in seconds)?
  37. 37.⏱️ How many seconds is 2 minutes 28 seconds?
  38. 38.⏱️ A 13-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  39. 39.⏱️ A 66-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  40. 40.⏱️ A video is 440 seconds long. How long is that in minutes and seconds? (a) 4 min 40 s (b) 7 min 20 s (c) 7 min 50 s (d) 8 min 20 s

Answer key

  1. 18
  2. 9
  3. 104
  4. 9
  5. 78
  6. 9 min 45 s
  7. the sum of the clips
  8. 36
  9. 60
  10. 33
  11. 550
  12. 28
  13. 1 min 5 s
  14. 344
  15. 25
  16. 107
  17. 21
  18. 67
  19. 31
  20. 106
  21. 13
  22. 111
  23. 22
  24. 27
  25. 7 min 45 s
  26. 23
  27. 13
  28. 134
  29. 63
  30. 3 min 0 s
  31. 16
  32. 159
  33. 50
  34. 2 min 5 s
  35. 101
  36. 99
  37. 148
  38. 26
  39. 33
  40. 7 min 20 s

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