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Video Editing Worksheet: Video Length

Animation and design lesson 21: Video length sums · Set 12 · 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) twice as long (c) silent (d) the same length
  2. 2.⏱️ How many seconds is 1 minute 26 seconds?
  3. 3.⏱️ A video has three clips of 56, 17 and 40 seconds. How long is the video (in seconds)?
  4. 4.⏱️ Your video must be 90 seconds long. Your clips add up to 70 seconds. How many more seconds of video do you need?
  5. 5.⏱️ A video has three clips of 15, 37 and 46 seconds. How long is the video (in seconds)?
  6. 6.⏱️ A video has three clips of 50, 49 and 13 seconds. How long is the video (in seconds)?
  7. 7.⏱️ Your video must be 180 seconds long. Your clips add up to 141 seconds. How many more seconds of video do you need?
  8. 8.⏱️ A video has three clips of 20, 40 and 43 seconds. How long is the video (in seconds)?
  9. 9.⏱️ How many seconds is 6 minutes 41 seconds?
  10. 10.⏱️ A 29-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  11. 11.⏱️ A video is 95 seconds long. How long is that in minutes and seconds? (a) 1 min 35 s (b) 2 min 35 s (c) 3 min 35 s (d) 1 min 5 s
  12. 12.⏱️ An 11-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  13. 13.⏱️ When you put clips one after another, the video length is … (a) the longest clip (b) the shortest clip (c) the sum of the clips (d) always 1 minute
  14. 14.⏱️ How many seconds is 4 minutes 1 second?
  15. 15.⏱️ How many seconds is 9 minutes 46 seconds?
  16. 16.⏱️ A video is 500 seconds long. How long is that in minutes and seconds? (a) 8 min 20 s (b) 5 min 0 s (c) 9 min 20 s (d) 8 min 50 s
  17. 17.⏱️ A video has three clips of 34, 21 and 37 seconds. How long is the video (in seconds)?
  18. 18.⏱️ How many seconds are in 1 minute? (a) 30 (b) 10 (c) 100 (d) 60
  19. 19.⏱️ Your video must be 60 seconds long. Your clips add up to 39 seconds. How many more seconds of video do you need?
  20. 20.⏱️ A 104-second clip is sped up to 4× speed. How long does it last now (in seconds)?
  21. 21.⏱️ A video has three clips of 25, 10 and 20 seconds. How long is the video (in seconds)?
  22. 22.⏱️ A 20-second clip is sped up to 4× speed. How long does it last now (in seconds)?
  23. 23.⏱️ A video is 415 seconds long. How long is that in minutes and seconds? (a) 6 min 55 s (b) 4 min 15 s (c) 7 min 55 s (d) 6 min 25 s
  24. 24.⏱️ How many seconds is 2 minutes 27 seconds?
  25. 25.⏱️ A video has three clips of 55, 15 and 53 seconds. How long is the video (in seconds)?
  26. 26.⏱️ An 80-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  27. 27.⏱️ A 57-second clip is sped up to 3× speed. How long does it last now (in seconds)?
  28. 28.⏱️ A video is 550 seconds long. How long is that in minutes and seconds? (a) 9 min 40 s (b) 10 min 10 s (c) 5 min 50 s (d) 9 min 10 s
  29. 29.⏱️ Your video must be 60 seconds long. Your clips add up to 14 seconds. How many more seconds of video do you need?
  30. 30.⏱️ A video has three clips of 54, 7 and 35 seconds. How long is the video (in seconds)?
  31. 31.⏱️ How many seconds is 7 minutes 9 seconds?
  32. 32.⏱️ How many seconds is 6 minutes 13 seconds?
  33. 33.⏱️ A 3-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  34. 34.⏱️ A 22-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  35. 35.⏱️ A video is 580 seconds long. How long is that in minutes and seconds? (a) 5 min 80 s (b) 9 min 40 s (c) 9 min 10 s (d) 10 min 40 s
  36. 36.⏱️ A 17-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  37. 37.⏱️ A video has three clips of 56, 46 and 7 seconds. How long is the video (in seconds)?
  38. 38.⏱️ Your video must be 180 seconds long. Your clips add up to 59 seconds. How many more seconds of video do you need?
  39. 39.⏱️ A video has three clips of 48, 56 and 21 seconds. How long is the video (in seconds)?
  40. 40.⏱️ A 12-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?

Answer key

  1. half as long
  2. 86
  3. 113
  4. 20
  5. 98
  6. 112
  7. 39
  8. 103
  9. 401
  10. 58
  11. 1 min 35 s
  12. 22
  13. the sum of the clips
  14. 241
  15. 586
  16. 8 min 20 s
  17. 92
  18. 60
  19. 21
  20. 26
  21. 55
  22. 5
  23. 6 min 55 s
  24. 147
  25. 123
  26. 40
  27. 19
  28. 9 min 10 s
  29. 46
  30. 96
  31. 429
  32. 373
  33. 6
  34. 11
  35. 9 min 40 s
  36. 34
  37. 109
  38. 121
  39. 125
  40. 24

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