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Video Editing Worksheet: Video Length

Animation and design lesson 21: Video length sums · Set 15 · 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 9 minutes 22 seconds?
  2. 2.⏱️ How many seconds are in 1 minute? (a) 60 (b) 10 (c) 30 (d) 100
  3. 3.⏱️ A 42-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  4. 4.⏱️ A 25-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  5. 5.⏱️ A video has three clips of 49, 13 and 41 seconds. How long is the video (in seconds)?
  6. 6.⏱️ A 28-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  7. 7.⏱️ How many seconds is 2 minutes 7 seconds?
  8. 8.⏱️ A video is 475 seconds long. How long is that in minutes and seconds? (a) 7 min 55 s (b) 4 min 75 s (c) 7 min 25 s (d) 8 min 55 s
  9. 9.⏱️ Your video must be 60 seconds long. Your clips add up to 32 seconds. How many more seconds of video do you need?
  10. 10.⏱️ A 21-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  11. 11.⏱️ A video is 345 seconds long. How long is that in minutes and seconds? (a) 5 min 45 s (b) 6 min 45 s (c) 5 min 15 s (d) 3 min 45 s
  12. 12.⏱️ A 124-second clip is sped up to 4× speed. How long does it last now (in seconds)?
  13. 13.⏱️ A 51-second clip is sped up to 3× speed. How long does it last now (in seconds)?
  14. 14.⏱️ A video has three clips of 52, 12 and 58 seconds. How long is the video (in seconds)?
  15. 15.⏱️ A 30-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  16. 16.⏱️ A 20-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  17. 17.⏱️ Your video must be 180 seconds long. Your clips add up to 170 seconds. How many more seconds of video do you need?
  18. 18.⏱️ How many seconds is 1 minute 15 seconds?
  19. 19.⏱️ How many seconds is 6 minutes 30 seconds?
  20. 20.⏱️ Your video must be 90 seconds long. Your clips add up to 28 seconds. How many more seconds of video do you need?
  21. 21.⏱️ A video has three clips of 53, 8 and 28 seconds. How long is the video (in seconds)?
  22. 22.⏱️ A video is 485 seconds long. How long is that in minutes and seconds? (a) 9 min 5 s (b) 8 min 5 s (c) 8 min 35 s (d) 4 min 85 s
  23. 23.⏱️ Speeding a clip up to 2× makes it … (a) twice as long (b) the same length (c) half as long (d) silent
  24. 24.⏱️ How many seconds is 7 minutes 54 seconds?
  25. 25.⏱️ A video has three clips of 6, 52 and 38 seconds. How long is the video (in seconds)?
  26. 26.⏱️ A 14-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  27. 27.⏱️ How many seconds is 7 minutes 30 seconds?
  28. 28.⏱️ An 18-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  29. 29.⏱️ A video has three clips of 22, 16 and 9 seconds. How long is the video (in seconds)?
  30. 30.⏱️ A 27-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  31. 31.⏱️ How many seconds is 2 minutes 15 seconds?
  32. 32.⏱️ A video is 135 seconds long. How long is that in minutes and seconds? (a) 1 min 35 s (b) 3 min 15 s (c) 2 min 15 s (d) 2 min 45 s
  33. 33.⏱️ Your video must be 60 seconds long. Your clips add up to 47 seconds. How many more seconds of video do you need?
  34. 34.⏱️ A video is 450 seconds long. How long is that in minutes and seconds? (a) 7 min 30 s (b) 7 min 0 s (c) 8 min 30 s (d) 4 min 50 s
  35. 35.⏱️ A video has three clips of 9, 28 and 12 seconds. How long is the video (in seconds)?
  36. 36.⏱️ A 105-second clip is sped up to 3× speed. How long does it last now (in seconds)?
  37. 37.⏱️ How many seconds is 8 minutes 2 seconds?
  38. 38.⏱️ When you put clips one after another, the video length is … (a) the longest clip (b) the sum of the clips (c) always 1 minute (d) the shortest clip
  39. 39.⏱️ A video is 95 seconds long. How long is that in minutes and seconds? (a) 1 min 5 s (b) 3 min 35 s (c) 2 min 35 s (d) 1 min 35 s
  40. 40.⏱️ A video is 175 seconds long. How long is that in minutes and seconds? (a) 2 min 25 s (b) 1 min 75 s (c) 2 min 55 s (d) 3 min 55 s

Answer key

  1. 562
  2. 60
  3. 21
  4. 50
  5. 103
  6. 14
  7. 127
  8. 7 min 55 s
  9. 28
  10. 42
  11. 5 min 45 s
  12. 31
  13. 17
  14. 122
  15. 15
  16. 40
  17. 10
  18. 75
  19. 390
  20. 62
  21. 89
  22. 8 min 5 s
  23. half as long
  24. 474
  25. 96
  26. 28
  27. 450
  28. 9
  29. 47
  30. 54
  31. 135
  32. 2 min 15 s
  33. 13
  34. 7 min 30 s
  35. 49
  36. 35
  37. 482
  38. the sum of the clips
  39. 1 min 35 s
  40. 2 min 55 s

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