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Video Editing Worksheet: Video Length

Animation and design lesson 21: Video length sums · Set 205 · 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 29, 11 and 12 seconds. How long is the video (in seconds)?
  2. 2.⏱️ A 10-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  3. 3.⏱️ An 11-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  4. 4.⏱️ How many seconds is 7 minutes 59 seconds?
  5. 5.⏱️ How many seconds is 9 minutes 49 seconds?
  6. 6.⏱️ How many seconds is 7 minutes 58 seconds?
  7. 7.⏱️ How many seconds is 7 minutes 39 seconds?
  8. 8.⏱️ How many seconds are in 1 minute? (a) 100 (b) 60 (c) 10 (d) 30
  9. 9.⏱️ A video has three clips of 11, 28 and 28 seconds. How long is the video (in seconds)?
  10. 10.⏱️ A 51-second clip is sped up to 3× speed. How long does it last now (in seconds)?
  11. 11.⏱️ A video has three clips of 17, 12 and 55 seconds. How long is the video (in seconds)?
  12. 12.⏱️ A video is 80 seconds long. How long is that in minutes and seconds? (a) 1 min 50 s (b) 1 min 20 s (c) 2 min 20 s (d) 3 min 20 s
  13. 13.⏱️ A video has three clips of 58, 55 and 13 seconds. How long is the video (in seconds)?
  14. 14.⏱️ How many seconds is 3 minutes 53 seconds?
  15. 15.⏱️ How many seconds is 7 minutes 51 seconds?
  16. 16.⏱️ How many seconds is 8 minutes 43 seconds?
  17. 17.⏱️ How many seconds is 1 minute 17 seconds?
  18. 18.⏱️ A 132-second clip is sped up to 4× speed. How long does it last now (in seconds)?
  19. 19.⏱️ A 7-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  20. 20.⏱️ Your video must be 120 seconds long. Your clips add up to 28 seconds. How many more seconds of video do you need?
  21. 21.⏱️ Your video must be 180 seconds long. Your clips add up to 140 seconds. How many more seconds of video do you need?
  22. 22.⏱️ A 21-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  23. 23.⏱️ How many seconds is 2 minutes 5 seconds?
  24. 24.⏱️ A 12-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  25. 25.⏱️ A video has three clips of 34, 10 and 28 seconds. How long is the video (in seconds)?
  26. 26.⏱️ A video has three clips of 22, 53 and 5 seconds. How long is the video (in seconds)?
  27. 27.⏱️ A 156-second clip is sped up to 4× speed. How long does it last now (in seconds)?
  28. 28.⏱️ A video is 440 seconds long. How long is that in minutes and seconds? (a) 4 min 40 s (b) 7 min 50 s (c) 8 min 20 s (d) 7 min 20 s
  29. 29.⏱️ A video is 145 seconds long. How long is that in minutes and seconds? (a) 2 min 25 s (b) 3 min 25 s (c) 2 min 55 s (d) 1 min 45 s
  30. 30.⏱️ 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
  31. 31.⏱️ A 64-second clip is sped up to 4× speed. How long does it last now (in seconds)?
  32. 32.⏱️ A 136-second clip is sped up to 4× speed. How long does it last now (in seconds)?
  33. 33.⏱️ How many seconds is 9 minutes 35 seconds?
  34. 34.⏱️ A 56-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  35. 35.⏱️ A video has three clips of 51, 55 and 29 seconds. How long is the video (in seconds)?
  36. 36.⏱️ How many seconds is 3 minutes 11 seconds?
  37. 37.⏱️ Your video must be 180 seconds long. Your clips add up to 27 seconds. How many more seconds of video do you need?
  38. 38.⏱️ A 22-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  39. 39.⏱️ A 17-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  40. 40.⏱️ How many seconds is 5 minutes 21 seconds?

Answer key

  1. 52
  2. 20
  3. 22
  4. 479
  5. 589
  6. 478
  7. 459
  8. 60
  9. 67
  10. 17
  11. 84
  12. 1 min 20 s
  13. 126
  14. 233
  15. 471
  16. 523
  17. 77
  18. 33
  19. 14
  20. 92
  21. 40
  22. 42
  23. 125
  24. 24
  25. 72
  26. 80
  27. 39
  28. 7 min 20 s
  29. 2 min 25 s
  30. 3 min 35 s
  31. 16
  32. 34
  33. 575
  34. 28
  35. 135
  36. 191
  37. 153
  38. 44
  39. 34
  40. 321

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