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Video Editing Worksheet: Video Length

Animation and design lesson 21: Video length sums · Set 113 · 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 30-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  2. 2.⏱️ A video has three clips of 7, 8 and 46 seconds. How long is the video (in seconds)?
  3. 3.⏱️ A 29-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  4. 4.⏱️ How many seconds is 5 minutes 20 seconds?
  5. 5.⏱️ When you put clips one after another, the video length is … (a) the longest clip (b) the shortest clip (c) always 1 minute (d) the sum of the clips
  6. 6.⏱️ A video is 190 seconds long. How long is that in minutes and seconds? (a) 3 min 40 s (b) 4 min 10 s (c) 3 min 10 s (d) 1 min 90 s
  7. 7.⏱️ A video has three clips of 8, 38 and 24 seconds. How long is the video (in seconds)?
  8. 8.⏱️ Your video must be 60 seconds long. Your clips add up to 13 seconds. How many more seconds of video do you need?
  9. 9.⏱️ A 32-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  10. 10.⏱️ How many seconds are in 1 minute? (a) 10 (b) 30 (c) 100 (d) 60
  11. 11.⏱️ A 3-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  12. 12.⏱️ How many seconds is 8 minutes 45 seconds?
  13. 13.⏱️ A 28-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  14. 14.⏱️ Your video must be 120 seconds long. Your clips add up to 41 seconds. How many more seconds of video do you need?
  15. 15.⏱️ An 18-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  16. 16.⏱️ A 78-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  17. 17.⏱️ A video has three clips of 58, 56 and 23 seconds. How long is the video (in seconds)?
  18. 18.⏱️ A video has three clips of 26, 9 and 12 seconds. How long is the video (in seconds)?
  19. 19.⏱️ Your video must be 90 seconds long. Your clips add up to 50 seconds. How many more seconds of video do you need?
  20. 20.⏱️ Speeding a clip up to 2× makes it … (a) the same length (b) twice as long (c) half as long (d) silent
  21. 21.⏱️ Your video must be 90 seconds long. Your clips add up to 60 seconds. How many more seconds of video do you need?
  22. 22.⏱️ How many seconds is 3 minutes 5 seconds?
  23. 23.⏱️ A 90-second clip is sped up to 3× speed. How long does it last now (in seconds)?
  24. 24.⏱️ A video has three clips of 20, 37 and 49 seconds. How long is the video (in seconds)?
  25. 25.⏱️ A 13-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  26. 26.⏱️ A video is 445 seconds long. How long is that in minutes and seconds? (a) 4 min 45 s (b) 7 min 25 s (c) 8 min 25 s (d) 7 min 55 s
  27. 27.⏱️ How many seconds is 9 minutes 7 seconds?
  28. 28.⏱️ A video has three clips of 32, 24 and 57 seconds. How long is the video (in seconds)?
  29. 29.⏱️ A 4-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  30. 30.⏱️ An 87-second clip is sped up to 3× speed. How long does it last now (in seconds)?
  31. 31.⏱️ A 17-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  32. 32.⏱️ A 5-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  33. 33.⏱️ How many seconds is 7 minutes 14 seconds?
  34. 34.⏱️ How many seconds is 9 minutes 21 seconds?
  35. 35.⏱️ A video is 535 seconds long. How long is that in minutes and seconds? (a) 8 min 25 s (b) 9 min 55 s (c) 8 min 55 s (d) 5 min 35 s
  36. 36.⏱️ A video has three clips of 40, 56 and 45 seconds. How long is the video (in seconds)?
  37. 37.⏱️ A 111-second clip is sped up to 3× speed. How long does it last now (in seconds)?
  38. 38.⏱️ A video has three clips of 18, 20 and 30 seconds. How long is the video (in seconds)?
  39. 39.⏱️ Your video must be 60 seconds long. Your clips add up to 38 seconds. How many more seconds of video do you need?
  40. 40.⏱️ A video is 510 seconds long. How long is that in minutes and seconds? (a) 5 min 10 s (b) 8 min 0 s (c) 9 min 30 s (d) 8 min 30 s

Answer key

  1. 15
  2. 61
  3. 58
  4. 320
  5. the sum of the clips
  6. 3 min 10 s
  7. 70
  8. 47
  9. 16
  10. 60
  11. 6
  12. 525
  13. 56
  14. 79
  15. 36
  16. 39
  17. 137
  18. 47
  19. 40
  20. half as long
  21. 30
  22. 185
  23. 30
  24. 106
  25. 26
  26. 7 min 25 s
  27. 547
  28. 113
  29. 8
  30. 29
  31. 34
  32. 10
  33. 434
  34. 561
  35. 8 min 55 s
  36. 141
  37. 37
  38. 68
  39. 22
  40. 8 min 30 s

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