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Video Editing Worksheet: Video Length

Animation and design lesson 21: Video length sums · Set 293 · 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 45, 38 and 56 seconds. How long is the video (in seconds)?
  2. 2.⏱️ A 140-second clip is sped up to 4× speed. How long does it last now (in seconds)?
  3. 3.⏱️ Speeding a clip up to 2× makes it … (a) the same length (b) silent (c) twice as long (d) half as long
  4. 4.⏱️ How many seconds is 3 minutes 18 seconds?
  5. 5.⏱️ How many seconds are in 1 minute? (a) 100 (b) 10 (c) 60 (d) 30
  6. 6.⏱️ A video has three clips of 23, 35 and 38 seconds. How long is the video (in seconds)?
  7. 7.⏱️ A video has three clips of 28, 11 and 53 seconds. How long is the video (in seconds)?
  8. 8.⏱️ A 22-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  9. 9.⏱️ A video has three clips of 41, 32 and 24 seconds. How long is the video (in seconds)?
  10. 10.⏱️ A video is 110 seconds long. How long is that in minutes and seconds? (a) 1 min 20 s (b) 2 min 50 s (c) 1 min 10 s (d) 1 min 50 s
  11. 11.⏱️ How many seconds is 1 minute 58 seconds?
  12. 12.⏱️ How many seconds is 5 minutes 48 seconds?
  13. 13.⏱️ How many seconds is 4 minutes 45 seconds?
  14. 14.⏱️ A 26-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  15. 15.⏱️ 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
  16. 16.⏱️ A video has three clips of 13, 13 and 45 seconds. How long is the video (in seconds)?
  17. 17.⏱️ Your video must be 60 seconds long. Your clips add up to 9 seconds. How many more seconds of video do you need?
  18. 18.⏱️ A 105-second clip is sped up to 3× speed. How long does it last now (in seconds)?
  19. 19.⏱️ How many seconds is 2 minutes 17 seconds?
  20. 20.⏱️ How many seconds is 6 minutes 55 seconds?
  21. 21.⏱️ A 15-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  22. 22.⏱️ Your video must be 90 seconds long. Your clips add up to 85 seconds. How many more seconds of video do you need?
  23. 23.⏱️ A 40-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  24. 24.⏱️ A video has three clips of 16, 33 and 12 seconds. How long is the video (in seconds)?
  25. 25.⏱️ A video has three clips of 59, 27 and 56 seconds. How long is the video (in seconds)?
  26. 26.⏱️ A video has three clips of 46, 28 and 9 seconds. How long is the video (in seconds)?
  27. 27.⏱️ A 5-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  28. 28.⏱️ How many seconds is 8 minutes 23 seconds?
  29. 29.⏱️ A video is 475 seconds long. How long is that in minutes and seconds? (a) 7 min 55 s (b) 4 min 75 s (c) 7 min 25 s (d) 8 min 55 s
  30. 30.⏱️ A video is 95 seconds long. How long is that in minutes and seconds? (a) 1 min 5 s (b) 3 min 35 s (c) 1 min 35 s (d) 2 min 35 s
  31. 31.⏱️ An 84-second clip is sped up to 3× speed. How long does it last now (in seconds)?
  32. 32.⏱️ A video is 100 seconds long. How long is that in minutes and seconds? (a) 2 min 40 s (b) 1 min 0 s (c) 1 min 40 s (d) 1 min 10 s
  33. 33.⏱️ How many seconds is 5 minutes 53 seconds?
  34. 34.⏱️ How many seconds is 5 minutes 12 seconds?
  35. 35.⏱️ A video is 480 seconds long. How long is that in minutes and seconds? (a) 8 min 0 s (b) 9 min 0 s (c) 8 min 30 s (d) 4 min 80 s
  36. 36.⏱️ A video has three clips of 27, 15 and 24 seconds. How long is the video (in seconds)?
  37. 37.⏱️ A video is 495 seconds long. How long is that in minutes and seconds? (a) 9 min 15 s (b) 8 min 15 s (c) 4 min 95 s (d) 8 min 45 s
  38. 38.⏱️ A video is 515 seconds long. How long is that in minutes and seconds? (a) 5 min 15 s (b) 8 min 35 s (c) 9 min 35 s (d) 8 min 5 s
  39. 39.⏱️ Your video must be 60 seconds long. Your clips add up to 8 seconds. How many more seconds of video do you need?
  40. 40.⏱️ Your video must be 180 seconds long. Your clips add up to 78 seconds. How many more seconds of video do you need?

Answer key

  1. 139
  2. 35
  3. half as long
  4. 198
  5. 60
  6. 96
  7. 92
  8. 44
  9. 97
  10. 1 min 50 s
  11. 118
  12. 348
  13. 285
  14. 52
  15. the sum of the clips
  16. 71
  17. 51
  18. 35
  19. 137
  20. 415
  21. 30
  22. 5
  23. 20
  24. 61
  25. 142
  26. 83
  27. 10
  28. 503
  29. 7 min 55 s
  30. 1 min 35 s
  31. 28
  32. 1 min 40 s
  33. 353
  34. 312
  35. 8 min 0 s
  36. 66
  37. 8 min 15 s
  38. 8 min 35 s
  39. 52
  40. 102

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