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Video Editing Worksheet: Video Length

Animation and design lesson 21: Video length sums · Set 219 · 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 video has three clips of 5, 50 and 56 seconds. How long is the video (in seconds)?
  2. 2.⏱️ A video has three clips of 34, 59 and 29 seconds. How long is the video (in seconds)?
  3. 3.⏱️ A 15-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 47 seconds?
  5. 5.⏱️ A video has three clips of 19, 57 and 55 seconds. How long is the video (in seconds)?
  6. 6.⏱️ A video has three clips of 41, 9 and 54 seconds. How long is the video (in seconds)?
  7. 7.⏱️ A 23-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  8. 8.⏱️ Your video must be 90 seconds long. Your clips add up to 41 seconds. How many more seconds of video do you need?
  9. 9.⏱️ A 29-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  10. 10.⏱️ Speeding a clip up to 2× makes it … (a) silent (b) half as long (c) twice as long (d) the same length
  11. 11.⏱️ A video has three clips of 57, 36 and 19 seconds. How long is the video (in seconds)?
  12. 12.⏱️ Your video must be 60 seconds long. Your clips add up to 34 seconds. How many more seconds of video do you need?
  13. 13.⏱️ How many seconds is 7 minutes 20 seconds?
  14. 14.⏱️ A video is 540 seconds long. How long is that in minutes and seconds? (a) 9 min 30 s (b) 10 min 0 s (c) 5 min 40 s (d) 9 min 0 s
  15. 15.⏱️ A 25-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  16. 16.⏱️ How many seconds is 1 minute 46 seconds?
  17. 17.⏱️ A video has three clips of 14, 28 and 60 seconds. How long is the video (in seconds)?
  18. 18.⏱️ A video is 305 seconds long. How long is that in minutes and seconds? (a) 5 min 35 s (b) 5 min 5 s (c) 3 min 5 s (d) 6 min 5 s
  19. 19.⏱️ An 18-second clip is sped up to 3× speed. How long does it last now (in seconds)?
  20. 20.⏱️ A 100-second clip is sped up to 4× speed. How long does it last now (in seconds)?
  21. 21.⏱️ A 5-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  22. 22.⏱️ Your video must be 90 seconds long. Your clips add up to 8 seconds. How many more seconds of video do you need?
  23. 23.⏱️ Your video must be 60 seconds long. Your clips add up to 8 seconds. How many more seconds of video do you need?
  24. 24.⏱️ How many seconds is 8 minutes 13 seconds?
  25. 25.⏱️ A 30-second clip is sped up to 3× speed. How long does it last now (in seconds)?
  26. 26.⏱️ A video has three clips of 33, 53 and 37 seconds. How long is the video (in seconds)?
  27. 27.⏱️ A 56-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  28. 28.⏱️ A 20-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  29. 29.⏱️ A video has three clips of 13, 54 and 15 seconds. How long is the video (in seconds)?
  30. 30.⏱️ A 13-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  31. 31.⏱️ A video has three clips of 33, 14 and 11 seconds. How long is the video (in seconds)?
  32. 32.⏱️ When you put clips one after another, the video length is … (a) the shortest clip (b) the longest clip (c) always 1 minute (d) the sum of the clips
  33. 33.⏱️ How many seconds is 2 minutes 11 seconds?
  34. 34.⏱️ How many seconds is 6 minutes 37 seconds?
  35. 35.⏱️ A video is 545 seconds long. How long is that in minutes and seconds? (a) 9 min 35 s (b) 10 min 5 s (c) 9 min 5 s (d) 5 min 45 s
  36. 36.⏱️ An 11-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  37. 37.⏱️ A video is 70 seconds long. How long is that in minutes and seconds? (a) 3 min 10 s (b) 1 min 40 s (c) 1 min 10 s (d) 2 min 10 s
  38. 38.⏱️ A 19-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  39. 39.⏱️ A 132-second clip is sped up to 4× speed. How long does it last now (in seconds)?
  40. 40.⏱️ A 28-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?

Answer key

  1. 111
  2. 122
  3. 30
  4. 347
  5. 131
  6. 104
  7. 46
  8. 49
  9. 58
  10. half as long
  11. 112
  12. 26
  13. 440
  14. 9 min 0 s
  15. 50
  16. 106
  17. 102
  18. 5 min 5 s
  19. 6
  20. 25
  21. 10
  22. 82
  23. 52
  24. 493
  25. 10
  26. 123
  27. 28
  28. 40
  29. 82
  30. 26
  31. 58
  32. the sum of the clips
  33. 131
  34. 397
  35. 9 min 5 s
  36. 22
  37. 1 min 10 s
  38. 38
  39. 33
  40. 56

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