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Video Editing Worksheet: Video Length

Animation and design lesson 21: Video length sums · Set 159 · 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 13, 34 and 12 seconds. How long is the video (in seconds)?
  2. 2.⏱️ Your video must be 120 seconds long. Your clips add up to 112 seconds. How many more seconds of video do you need?
  3. 3.⏱️ Your video must be 90 seconds long. Your clips add up to 55 seconds. How many more seconds of video do you need?
  4. 4.⏱️ A video is 555 seconds long. How long is that in minutes and seconds? (a) 9 min 45 s (b) 5 min 55 s (c) 9 min 15 s (d) 10 min 15 s
  5. 5.⏱️ A 9-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  6. 6.⏱️ A 72-second clip is sped up to 3× speed. How long does it last now (in seconds)?
  7. 7.⏱️ When you put clips one after another, the video length is … (a) always 1 minute (b) the sum of the clips (c) the longest clip (d) the shortest clip
  8. 8.⏱️ A video is 120 seconds long. How long is that in minutes and seconds? (a) 1 min 20 s (b) 2 min 30 s (c) 3 min 0 s (d) 2 min 0 s
  9. 9.⏱️ A 68-second clip is sped up to 4× speed. How long does it last now (in seconds)?
  10. 10.⏱️ A 32-second clip is sped up to 4× speed. How long does it last now (in seconds)?
  11. 11.⏱️ A 44-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  12. 12.⏱️ Your video must be 120 seconds long. Your clips add up to 12 seconds. How many more seconds of video do you need?
  13. 13.⏱️ An 18-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  14. 14.⏱️ Speeding a clip up to 2× makes it … (a) the same length (b) half as long (c) twice as long (d) silent
  15. 15.⏱️ A 111-second clip is sped up to 3× speed. How long does it last now (in seconds)?
  16. 16.⏱️ A 66-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  17. 17.⏱️ A 69-second clip is sped up to 3× speed. How long does it last now (in seconds)?
  18. 18.⏱️ A video is 105 seconds long. How long is that in minutes and seconds? (a) 1 min 45 s (b) 2 min 45 s (c) 1 min 15 s (d) 1 min 5 s
  19. 19.⏱️ An 8-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  20. 20.⏱️ A video has three clips of 47, 27 and 10 seconds. How long is the video (in seconds)?
  21. 21.⏱️ How many seconds are in 1 minute? (a) 60 (b) 100 (c) 10 (d) 30
  22. 22.⏱️ How many seconds is 7 minutes 38 seconds?
  23. 23.⏱️ How many seconds is 8 minutes 46 seconds?
  24. 24.⏱️ A video is 220 seconds long. How long is that in minutes and seconds? (a) 4 min 40 s (b) 2 min 20 s (c) 3 min 40 s (d) 3 min 10 s
  25. 25.⏱️ Your video must be 60 seconds long. Your clips add up to 8 seconds. How many more seconds of video do you need?
  26. 26.⏱️ A video is 115 seconds long. How long is that in minutes and seconds? (a) 1 min 15 s (b) 2 min 55 s (c) 1 min 55 s (d) 1 min 25 s
  27. 27.⏱️ A video has three clips of 18, 18 and 9 seconds. How long is the video (in seconds)?
  28. 28.⏱️ How many seconds is 5 minutes 27 seconds?
  29. 29.⏱️ A 56-second clip is sped up to 4× speed. How long does it last now (in seconds)?
  30. 30.⏱️ How many seconds is 4 minutes 4 seconds?
  31. 31.⏱️ A video is 435 seconds long. How long is that in minutes and seconds? (a) 7 min 45 s (b) 7 min 15 s (c) 8 min 15 s (d) 4 min 35 s
  32. 32.⏱️ A video has three clips of 17, 59 and 58 seconds. How long is the video (in seconds)?
  33. 33.⏱️ A video has three clips of 50, 11 and 37 seconds. How long is the video (in seconds)?
  34. 34.⏱️ A 10-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  35. 35.⏱️ How many seconds is 5 minutes 4 seconds?
  36. 36.⏱️ How many seconds is 8 minutes 7 seconds?
  37. 37.⏱️ How many seconds is 9 minutes 32 seconds?
  38. 38.⏱️ A 25-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  39. 39.⏱️ A 148-second clip is sped up to 4× speed. How long does it last now (in seconds)?
  40. 40.⏱️ Your video must be 90 seconds long. Your clips add up to 20 seconds. How many more seconds of video do you need?

Answer key

  1. 59
  2. 8
  3. 35
  4. 9 min 15 s
  5. 18
  6. 24
  7. the sum of the clips
  8. 2 min 0 s
  9. 17
  10. 8
  11. 22
  12. 108
  13. 36
  14. half as long
  15. 37
  16. 33
  17. 23
  18. 1 min 45 s
  19. 16
  20. 84
  21. 60
  22. 458
  23. 526
  24. 3 min 40 s
  25. 52
  26. 1 min 55 s
  27. 45
  28. 327
  29. 14
  30. 244
  31. 7 min 15 s
  32. 134
  33. 98
  34. 20
  35. 304
  36. 487
  37. 572
  38. 50
  39. 37
  40. 70

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