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Video Editing Worksheet: Video Length

Animation and design lesson 21: Video length sums · Set 71 · 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 24-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  2. 2.⏱️ A 29-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  3. 3.⏱️ A video is 495 seconds long. How long is that in minutes and seconds? (a) 9 min 15 s (b) 8 min 45 s (c) 4 min 95 s (d) 8 min 15 s
  4. 4.⏱️ How many seconds are in 1 minute? (a) 30 (b) 100 (c) 10 (d) 60
  5. 5.⏱️ A 90-second clip is sped up to 3× speed. How long does it last now (in seconds)?
  6. 6.⏱️ How many seconds is 4 minutes 16 seconds?
  7. 7.⏱️ A video has three clips of 49, 55 and 10 seconds. How long is the video (in seconds)?
  8. 8.⏱️ A video has three clips of 50, 13 and 15 seconds. How long is the video (in seconds)?
  9. 9.⏱️ A 22-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  10. 10.⏱️ A 33-second clip is sped up to 3× speed. How long does it last now (in seconds)?
  11. 11.⏱️ When you put clips one after another, the video length is … (a) the longest clip (b) the sum of the clips (c) always 1 minute (d) the shortest clip
  12. 12.⏱️ Your video must be 120 seconds long. Your clips add up to 49 seconds. How many more seconds of video do you need?
  13. 13.⏱️ Your video must be 180 seconds long. Your clips add up to 32 seconds. How many more seconds of video do you need?
  14. 14.⏱️ An 18-second clip is sped up to 3× speed. How long does it last now (in seconds)?
  15. 15.⏱️ A video has three clips of 55, 57 and 31 seconds. How long is the video (in seconds)?
  16. 16.⏱️ A video is 255 seconds long. How long is that in minutes and seconds? (a) 5 min 15 s (b) 4 min 45 s (c) 2 min 55 s (d) 4 min 15 s
  17. 17.⏱️ A video has three clips of 44, 11 and 7 seconds. How long is the video (in seconds)?
  18. 18.⏱️ A video is 295 seconds long. How long is that in minutes and seconds? (a) 4 min 25 s (b) 5 min 55 s (c) 4 min 55 s (d) 2 min 95 s
  19. 19.⏱️ How many seconds is 8 minutes 10 seconds?
  20. 20.⏱️ How many seconds is 8 minutes 27 seconds?
  21. 21.⏱️ A 24-second clip is sped up to 4× speed. How long does it last now (in seconds)?
  22. 22.⏱️ How many seconds is 1 minute 25 seconds?
  23. 23.⏱️ A video is 120 seconds long. How long is that in minutes and seconds? (a) 2 min 30 s (b) 3 min 0 s (c) 1 min 20 s (d) 2 min 0 s
  24. 24.⏱️ A 15-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  25. 25.⏱️ A 128-second clip is sped up to 4× speed. How long does it last now (in seconds)?
  26. 26.⏱️ A video has three clips of 18, 6 and 9 seconds. How long is the video (in seconds)?
  27. 27.⏱️ A video has three clips of 5, 23 and 39 seconds. How long is the video (in seconds)?
  28. 28.⏱️ How many seconds is 4 minutes 14 seconds?
  29. 29.⏱️ A video has three clips of 55, 59 and 49 seconds. How long is the video (in seconds)?
  30. 30.⏱️ How many seconds is 8 minutes 12 seconds?
  31. 31.⏱️ A 48-second clip is sped up to 3× speed. How long does it last now (in seconds)?
  32. 32.⏱️ A 42-second clip is sped up to 3× speed. How long does it last now (in seconds)?
  33. 33.⏱️ A video is 225 seconds long. How long is that in minutes and seconds? (a) 4 min 45 s (b) 3 min 15 s (c) 3 min 45 s (d) 2 min 25 s
  34. 34.⏱️ How many seconds is 2 minutes 46 seconds?
  35. 35.⏱️ Your video must be 180 seconds long. Your clips add up to 61 seconds. How many more seconds of video do you need?
  36. 36.⏱️ A 25-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  37. 37.⏱️ How many seconds is 4 minutes 22 seconds?
  38. 38.⏱️ How many seconds is 1 minute 27 seconds?
  39. 39.⏱️ An 18-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  40. 40.⏱️ A video has three clips of 6, 12 and 21 seconds. How long is the video (in seconds)?

Answer key

  1. 12
  2. 58
  3. 8 min 15 s
  4. 60
  5. 30
  6. 256
  7. 114
  8. 78
  9. 11
  10. 11
  11. the sum of the clips
  12. 71
  13. 148
  14. 6
  15. 143
  16. 4 min 15 s
  17. 62
  18. 4 min 55 s
  19. 490
  20. 507
  21. 6
  22. 85
  23. 2 min 0 s
  24. 30
  25. 32
  26. 33
  27. 67
  28. 254
  29. 163
  30. 492
  31. 16
  32. 14
  33. 3 min 45 s
  34. 166
  35. 119
  36. 50
  37. 262
  38. 87
  39. 36
  40. 39

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