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Video Editing Worksheet: Video Length

Animation and design lesson 21: Video length sums · Set 44 · 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 28-second clip is sped up to 4× speed. How long does it last now (in seconds)?
  2. 2.⏱️ 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
  3. 3.⏱️ A 23-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  4. 4.⏱️ A 29-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  5. 5.⏱️ How many seconds is 6 minutes 26 seconds?
  6. 6.⏱️ How many seconds is 7 minutes 18 seconds?
  7. 7.⏱️ A 52-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  8. 8.⏱️ A video is 390 seconds long. How long is that in minutes and seconds? (a) 6 min 30 s (b) 7 min 30 s (c) 3 min 90 s (d) 6 min 0 s
  9. 9.⏱️ How many seconds is 1 minute 32 seconds?
  10. 10.⏱️ A 10-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  11. 11.⏱️ A 70-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  12. 12.⏱️ A 120-second clip is sped up to 4× speed. How long does it last now (in seconds)?
  13. 13.⏱️ A video is 590 seconds long. How long is that in minutes and seconds? (a) 5 min 90 s (b) 9 min 20 s (c) 9 min 50 s (d) 10 min 50 s
  14. 14.⏱️ A video has three clips of 36, 19 and 30 seconds. How long is the video (in seconds)?
  15. 15.⏱️ How many seconds are in 1 minute? (a) 30 (b) 100 (c) 60 (d) 10
  16. 16.⏱️ A video has three clips of 19, 23 and 8 seconds. How long is the video (in seconds)?
  17. 17.⏱️ Speeding a clip up to 2× makes it … (a) half as long (b) the same length (c) twice as long (d) silent
  18. 18.⏱️ 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) 3 min 45 s (d) 5 min 15 s
  19. 19.⏱️ A video is 420 seconds long. How long is that in minutes and seconds? (a) 4 min 20 s (b) 7 min 0 s (c) 7 min 30 s (d) 8 min 0 s
  20. 20.⏱️ Your video must be 120 seconds long. Your clips add up to 72 seconds. How many more seconds of video do you need?
  21. 21.⏱️ How many seconds is 9 minutes 1 second?
  22. 22.⏱️ A 44-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  23. 23.⏱️ A 66-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  24. 24.⏱️ A 25-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  25. 25.⏱️ An 18-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  26. 26.⏱️ A 15-second clip is sped up to 3× speed. How long does it last now (in seconds)?
  27. 27.⏱️ How many seconds is 8 minutes 50 seconds?
  28. 28.⏱️ An 8-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 43, 7 and 60 seconds. How long is the video (in seconds)?
  30. 30.⏱️ A video is 340 seconds long. How long is that in minutes and seconds? (a) 6 min 40 s (b) 5 min 40 s (c) 3 min 40 s (d) 5 min 10 s
  31. 31.⏱️ A video has three clips of 32, 16 and 21 seconds. How long is the video (in seconds)?
  32. 32.⏱️ Your video must be 120 seconds long. Your clips add up to 59 seconds. How many more seconds of video do you need?
  33. 33.⏱️ A video is 85 seconds long. How long is that in minutes and seconds? (a) 2 min 25 s (b) 3 min 25 s (c) 1 min 55 s (d) 1 min 25 s
  34. 34.⏱️ A video has three clips of 45, 47 and 39 seconds. How long is the video (in seconds)?
  35. 35.⏱️ A 10-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  36. 36.⏱️ How many seconds is 4 minutes 20 seconds?
  37. 37.⏱️ How many seconds is 4 minutes 39 seconds?
  38. 38.⏱️ A 15-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  39. 39.⏱️ A video has three clips of 34, 56 and 54 seconds. How long is the video (in seconds)?
  40. 40.⏱️ How many seconds is 1 minute 28 seconds?

Answer key

  1. 7
  2. the sum of the clips
  3. 46
  4. 58
  5. 386
  6. 438
  7. 26
  8. 6 min 30 s
  9. 92
  10. 20
  11. 35
  12. 30
  13. 9 min 50 s
  14. 85
  15. 60
  16. 50
  17. half as long
  18. 5 min 45 s
  19. 7 min 0 s
  20. 48
  21. 541
  22. 22
  23. 33
  24. 50
  25. 36
  26. 5
  27. 530
  28. 16
  29. 110
  30. 5 min 40 s
  31. 69
  32. 61
  33. 1 min 25 s
  34. 131
  35. 5
  36. 260
  37. 279
  38. 30
  39. 144
  40. 88

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