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Video Editing Worksheet: Video Length

Animation and design lesson 21: Video length sums · Set 187 · 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) half as long (b) silent (c) twice as long (d) the same length
  2. 2.⏱️ A video has three clips of 53, 29 and 19 seconds. How long is the video (in seconds)?
  3. 3.⏱️ A 56-second clip is sped up to 4× speed. How long does it last now (in seconds)?
  4. 4.⏱️ A 68-second clip is sped up to 4× speed. How long does it last now (in seconds)?
  5. 5.⏱️ A video is 575 seconds long. How long is that in minutes and seconds? (a) 5 min 75 s (b) 10 min 35 s (c) 9 min 5 s (d) 9 min 35 s
  6. 6.⏱️ When you put clips one after another, the video length is … (a) the shortest clip (b) the sum of the clips (c) always 1 minute (d) the longest clip
  7. 7.⏱️ A video is 330 seconds long. How long is that in minutes and seconds? (a) 5 min 30 s (b) 3 min 30 s (c) 6 min 30 s (d) 5 min 0 s
  8. 8.⏱️ How many seconds is 7 minutes 59 seconds?
  9. 9.⏱️ A video has three clips of 30, 50 and 7 seconds. How long is the video (in seconds)?
  10. 10.⏱️ How many seconds are in 1 minute? (a) 60 (b) 30 (c) 100 (d) 10
  11. 11.⏱️ How many seconds is 8 minutes 21 seconds?
  12. 12.⏱️ A video has three clips of 6, 55 and 5 seconds. How long is the video (in seconds)?
  13. 13.⏱️ How many seconds is 3 minutes 49 seconds?
  14. 14.⏱️ A 14-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  15. 15.⏱️ Your video must be 120 seconds long. Your clips add up to 114 seconds. How many more seconds of video do you need?
  16. 16.⏱️ A 52-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  17. 17.⏱️ A 38-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  18. 18.⏱️ How many seconds is 5 minutes 55 seconds?
  19. 19.⏱️ A 44-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  20. 20.⏱️ A video has three clips of 34, 38 and 60 seconds. How long is the video (in seconds)?
  21. 21.⏱️ A video has three clips of 9, 25 and 11 seconds. How long is the video (in seconds)?
  22. 22.⏱️ How many seconds is 1 minute 48 seconds?
  23. 23.⏱️ A video is 315 seconds long. How long is that in minutes and seconds? (a) 5 min 45 s (b) 6 min 15 s (c) 3 min 15 s (d) 5 min 15 s
  24. 24.⏱️ A 69-second clip is sped up to 3× speed. How long does it last now (in seconds)?
  25. 25.⏱️ A 78-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  26. 26.⏱️ A video is 130 seconds long. How long is that in minutes and seconds? (a) 3 min 10 s (b) 2 min 40 s (c) 1 min 30 s (d) 2 min 10 s
  27. 27.⏱️ A 39-second clip is sped up to 3× speed. How long does it last now (in seconds)?
  28. 28.⏱️ A video has three clips of 43, 12 and 52 seconds. How long is the video (in seconds)?
  29. 29.⏱️ Your video must be 60 seconds long. Your clips add up to 44 seconds. How many more seconds of video do you need?
  30. 30.⏱️ A 70-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  31. 31.⏱️ A 14-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  32. 32.⏱️ Your video must be 180 seconds long. Your clips add up to 118 seconds. How many more seconds of video do you need?
  33. 33.⏱️ Your video must be 90 seconds long. Your clips add up to 84 seconds. How many more seconds of video do you need?
  34. 34.⏱️ A 9-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  35. 35.⏱️ Your video must be 120 seconds long. Your clips add up to 59 seconds. How many more seconds of video do you need?
  36. 36.⏱️ How many seconds is 1 minute 35 seconds?
  37. 37.⏱️ A video has three clips of 21, 15 and 8 seconds. How long is the video (in seconds)?
  38. 38.⏱️ A 112-second clip is sped up to 4× speed. How long does it last now (in seconds)?
  39. 39.⏱️ A video is 160 seconds long. How long is that in minutes and seconds? (a) 2 min 10 s (b) 1 min 60 s (c) 2 min 40 s (d) 3 min 40 s
  40. 40.⏱️ An 18-second clip is sped up to 2× speed. How long does it last now (in seconds)?

Answer key

  1. half as long
  2. 101
  3. 14
  4. 17
  5. 9 min 35 s
  6. the sum of the clips
  7. 5 min 30 s
  8. 479
  9. 87
  10. 60
  11. 501
  12. 66
  13. 229
  14. 28
  15. 6
  16. 26
  17. 19
  18. 355
  19. 22
  20. 132
  21. 45
  22. 108
  23. 5 min 15 s
  24. 23
  25. 39
  26. 2 min 10 s
  27. 13
  28. 107
  29. 16
  30. 35
  31. 7
  32. 62
  33. 6
  34. 18
  35. 61
  36. 95
  37. 44
  38. 28
  39. 2 min 40 s
  40. 9

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