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Video Editing Worksheet: Video Length

Animation and design lesson 21: Video length sums · Set 263 · 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.⏱️ Speeding a clip up to 2× makes it … (a) twice as long (b) silent (c) half as long (d) the same length
  2. 2.⏱️ Your video must be 120 seconds long. Your clips add up to 67 seconds. How many more seconds of video do you need?
  3. 3.⏱️ A video has three clips of 45, 59 and 14 seconds. How long is the video (in seconds)?
  4. 4.⏱️ How many seconds is 3 minutes 17 seconds?
  5. 5.⏱️ How many seconds is 5 minutes 48 seconds?
  6. 6.⏱️ An 87-second clip is sped up to 3× speed. How long does it last now (in seconds)?
  7. 7.⏱️ A video has three clips of 11, 9 and 36 seconds. How long is the video (in seconds)?
  8. 8.⏱️ A video has three clips of 52, 14 and 10 seconds. How long is the video (in seconds)?
  9. 9.⏱️ A 9-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  10. 10.⏱️ A 152-second clip is sped up to 4× speed. How long does it last now (in seconds)?
  11. 11.⏱️ A 16-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  12. 12.⏱️ A video is 180 seconds long. How long is that in minutes and seconds? (a) 3 min 0 s (b) 4 min 0 s (c) 3 min 30 s (d) 1 min 80 s
  13. 13.⏱️ A 15-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  14. 14.⏱️ A video is 415 seconds long. How long is that in minutes and seconds? (a) 6 min 25 s (b) 4 min 15 s (c) 6 min 55 s (d) 7 min 55 s
  15. 15.⏱️ A 17-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  16. 16.⏱️ A 4-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  17. 17.⏱️ How many seconds is 7 minutes 29 seconds?
  18. 18.⏱️ Your video must be 60 seconds long. Your clips add up to 7 seconds. How many more seconds of video do you need?
  19. 19.⏱️ A 64-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  20. 20.⏱️ A 26-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  21. 21.⏱️ Your video must be 60 seconds long. Your clips add up to 26 seconds. How many more seconds of video do you need?
  22. 22.⏱️ A video has three clips of 33, 53 and 57 seconds. How long is the video (in seconds)?
  23. 23.⏱️ When you put clips one after another, the video length is … (a) the shortest clip (b) the longest clip (c) the sum of the clips (d) always 1 minute
  24. 24.⏱️ A video is 220 seconds long. How long is that in minutes and seconds? (a) 2 min 20 s (b) 4 min 40 s (c) 3 min 40 s (d) 3 min 10 s
  25. 25.⏱️ Your video must be 120 seconds long. Your clips add up to 69 seconds. How many more seconds of video do you need?
  26. 26.⏱️ A 52-second clip is sped up to 4× speed. How long does it last now (in seconds)?
  27. 27.⏱️ A 72-second clip is sped up to 4× speed. How long does it last now (in seconds)?
  28. 28.⏱️ An 11-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  29. 29.⏱️ Your video must be 60 seconds long. Your clips add up to 25 seconds. How many more seconds of video do you need?
  30. 30.⏱️ A 24-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  31. 31.⏱️ How many seconds are in 1 minute? (a) 30 (b) 10 (c) 100 (d) 60
  32. 32.⏱️ How many seconds is 4 minutes 52 seconds?
  33. 33.⏱️ A 66-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  34. 34.⏱️ A video is 160 seconds long. How long is that in minutes and seconds? (a) 2 min 40 s (b) 3 min 40 s (c) 2 min 10 s (d) 1 min 60 s
  35. 35.⏱️ A 19-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  36. 36.⏱️ A video has three clips of 23, 33 and 17 seconds. How long is the video (in seconds)?
  37. 37.⏱️ A 44-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  38. 38.⏱️ A video has three clips of 40, 5 and 46 seconds. How long is the video (in seconds)?
  39. 39.⏱️ A video has three clips of 19, 39 and 6 seconds. How long is the video (in seconds)?
  40. 40.⏱️ A video is 155 seconds long. How long is that in minutes and seconds? (a) 2 min 35 s (b) 3 min 35 s (c) 1 min 55 s (d) 2 min 5 s

Answer key

  1. half as long
  2. 53
  3. 118
  4. 197
  5. 348
  6. 29
  7. 56
  8. 76
  9. 18
  10. 38
  11. 32
  12. 3 min 0 s
  13. 30
  14. 6 min 55 s
  15. 34
  16. 8
  17. 449
  18. 53
  19. 32
  20. 52
  21. 34
  22. 143
  23. the sum of the clips
  24. 3 min 40 s
  25. 51
  26. 13
  27. 18
  28. 22
  29. 35
  30. 48
  31. 60
  32. 292
  33. 33
  34. 2 min 40 s
  35. 38
  36. 73
  37. 22
  38. 91
  39. 64
  40. 2 min 35 s

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