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Video Editing Worksheet: Video Length

Animation and design lesson 21: Video length sums · Set 95 · 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 33, 22 and 55 seconds. How long is the video (in seconds)?
  2. 2.⏱️ How many seconds are in 1 minute? (a) 60 (b) 10 (c) 30 (d) 100
  3. 3.⏱️ How many seconds is 7 minutes 42 seconds?
  4. 4.⏱️ A 22-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  5. 5.⏱️ A 4-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  6. 6.⏱️ Your video must be 90 seconds long. Your clips add up to 57 seconds. How many more seconds of video do you need?
  7. 7.⏱️ A video has three clips of 52, 60 and 44 seconds. How long is the video (in seconds)?
  8. 8.⏱️ A video has three clips of 13, 47 and 13 seconds. How long is the video (in seconds)?
  9. 9.⏱️ Speeding a clip up to 2× makes it … (a) half as long (b) the same length (c) twice as long (d) silent
  10. 10.⏱️ A 128-second clip is sped up to 4× speed. How long does it last now (in seconds)?
  11. 11.⏱️ A video has three clips of 15, 26 and 29 seconds. How long is the video (in seconds)?
  12. 12.⏱️ How many seconds is 8 minutes 20 seconds?
  13. 13.⏱️ A video is 90 seconds long. How long is that in minutes and seconds? (a) 3 min 30 s (b) 1 min 30 s (c) 1 min 0 s (d) 2 min 30 s
  14. 14.⏱️ A 102-second clip is sped up to 3× speed. How long does it last now (in seconds)?
  15. 15.⏱️ When you put clips one after another, the video length is … (a) the shortest clip (b) the sum of the clips (c) the longest clip (d) always 1 minute
  16. 16.⏱️ A 70-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  17. 17.⏱️ A 27-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  18. 18.⏱️ Your video must be 120 seconds long. Your clips add up to 107 seconds. How many more seconds of video do you need?
  19. 19.⏱️ Your video must be 180 seconds long. Your clips add up to 86 seconds. How many more seconds of video do you need?
  20. 20.⏱️ A video is 515 seconds long. How long is that in minutes and seconds? (a) 8 min 35 s (b) 9 min 35 s (c) 8 min 5 s (d) 5 min 15 s
  21. 21.⏱️ How many seconds is 5 minutes 43 seconds?
  22. 22.⏱️ A 40-second clip is sped up to 4× speed. How long does it last now (in seconds)?
  23. 23.⏱️ A video has three clips of 52, 7 and 20 seconds. How long is the video (in seconds)?
  24. 24.⏱️ How many seconds is 2 minutes 3 seconds?
  25. 25.⏱️ A 20-second clip is sped up to 4× speed. How long does it last now (in seconds)?
  26. 26.⏱️ A video is 400 seconds long. How long is that in minutes and seconds? (a) 6 min 40 s (b) 7 min 40 s (c) 4 min 0 s (d) 6 min 10 s
  27. 27.⏱️ A 96-second clip is sped up to 3× speed. How long does it last now (in seconds)?
  28. 28.⏱️ A video is 195 seconds long. How long is that in minutes and seconds? (a) 4 min 15 s (b) 3 min 15 s (c) 1 min 95 s (d) 3 min 45 s
  29. 29.⏱️ How many seconds is 4 minutes 45 seconds?
  30. 30.⏱️ Your video must be 120 seconds long. Your clips add up to 84 seconds. How many more seconds of video do you need?
  31. 31.⏱️ An 87-second clip is sped up to 3× speed. How long does it last now (in seconds)?
  32. 32.⏱️ How many seconds is 7 minutes 21 seconds?
  33. 33.⏱️ A 132-second clip is sped up to 4× speed. How long does it last now (in seconds)?
  34. 34.⏱️ A 108-second clip is sped up to 4× speed. How long does it last now (in seconds)?
  35. 35.⏱️ A video has three clips of 41, 47 and 30 seconds. How long is the video (in seconds)?
  36. 36.⏱️ A video is 365 seconds long. How long is that in minutes and seconds? (a) 6 min 35 s (b) 7 min 5 s (c) 6 min 5 s (d) 3 min 65 s
  37. 37.⏱️ A video is 215 seconds long. How long is that in minutes and seconds? (a) 4 min 35 s (b) 3 min 35 s (c) 3 min 5 s (d) 2 min 15 s
  38. 38.⏱️ Your video must be 120 seconds long. Your clips add up to 109 seconds. How many more seconds of video do you need?
  39. 39.⏱️ A video is 315 seconds long. How long is that in minutes and seconds? (a) 6 min 15 s (b) 5 min 45 s (c) 3 min 15 s (d) 5 min 15 s
  40. 40.⏱️ A 14-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?

Answer key

  1. 110
  2. 60
  3. 462
  4. 44
  5. 8
  6. 33
  7. 156
  8. 73
  9. half as long
  10. 32
  11. 70
  12. 500
  13. 1 min 30 s
  14. 34
  15. the sum of the clips
  16. 35
  17. 54
  18. 13
  19. 94
  20. 8 min 35 s
  21. 343
  22. 10
  23. 79
  24. 123
  25. 5
  26. 6 min 40 s
  27. 32
  28. 3 min 15 s
  29. 285
  30. 36
  31. 29
  32. 441
  33. 33
  34. 27
  35. 118
  36. 6 min 5 s
  37. 3 min 35 s
  38. 11
  39. 5 min 15 s
  40. 28

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