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Video Editing Worksheet: Video Length

Animation and design lesson 21: Video length sums · Set 243 · 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.⏱️ How many seconds is 2 minutes 49 seconds?
  2. 2.⏱️ A video is 425 seconds long. How long is that in minutes and seconds? (a) 4 min 25 s (b) 7 min 35 s (c) 8 min 5 s (d) 7 min 5 s
  3. 3.⏱️ A 19-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  4. 4.⏱️ A 116-second clip is sped up to 4× speed. How long does it last now (in seconds)?
  5. 5.⏱️ How many seconds is 1 minute 23 seconds?
  6. 6.⏱️ When you put clips one after another, the video length is … (a) the sum of the clips (b) the longest clip (c) always 1 minute (d) the shortest clip
  7. 7.⏱️ A 160-second clip is sped up to 4× speed. How long does it last now (in seconds)?
  8. 8.⏱️ A video is 210 seconds long. How long is that in minutes and seconds? (a) 3 min 0 s (b) 4 min 30 s (c) 3 min 30 s (d) 2 min 10 s
  9. 9.⏱️ A video has three clips of 56, 5 and 19 seconds. How long is the video (in seconds)?
  10. 10.⏱️ Speeding a clip up to 2× makes it … (a) twice as long (b) the same length (c) half as long (d) silent
  11. 11.⏱️ A video has three clips of 60, 16 and 22 seconds. How long is the video (in seconds)?
  12. 12.⏱️ An 84-second clip is sped up to 4× speed. How long does it last now (in seconds)?
  13. 13.⏱️ Your video must be 120 seconds long. Your clips add up to 39 seconds. How many more seconds of video do you need?
  14. 14.⏱️ A video is 525 seconds long. How long is that in minutes and seconds? (a) 5 min 25 s (b) 8 min 45 s (c) 8 min 15 s (d) 9 min 45 s
  15. 15.⏱️ How many seconds is 4 minutes 1 second?
  16. 16.⏱️ How many seconds are in 1 minute? (a) 30 (b) 60 (c) 100 (d) 10
  17. 17.⏱️ A video has three clips of 13, 40 and 10 seconds. How long is the video (in seconds)?
  18. 18.⏱️ A video has three clips of 45, 20 and 17 seconds. How long is the video (in seconds)?
  19. 19.⏱️ Your video must be 90 seconds long. Your clips add up to 76 seconds. How many more seconds of video do you need?
  20. 20.⏱️ Your video must be 60 seconds long. Your clips add up to 20 seconds. How many more seconds of video do you need?
  21. 21.⏱️ A video is 565 seconds long. How long is that in minutes and seconds? (a) 9 min 25 s (b) 10 min 25 s (c) 5 min 65 s (d) 9 min 55 s
  22. 22.⏱️ Your video must be 60 seconds long. Your clips add up to 19 seconds. How many more seconds of video do you need?
  23. 23.⏱️ How many seconds is 4 minutes 14 seconds?
  24. 24.⏱️ A video has three clips of 13, 6 and 18 seconds. How long is the video (in seconds)?
  25. 25.⏱️ A 21-second clip is sped up to 3× speed. How long does it last now (in seconds)?
  26. 26.⏱️ A video is 585 seconds long. How long is that in minutes and seconds? (a) 10 min 45 s (b) 9 min 15 s (c) 9 min 45 s (d) 5 min 85 s
  27. 27.⏱️ A 15-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  28. 28.⏱️ A 152-second clip is sped up to 4× speed. How long does it last now (in seconds)?
  29. 29.⏱️ A 54-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  30. 30.⏱️ A video is 240 seconds long. How long is that in minutes and seconds? (a) 2 min 40 s (b) 4 min 30 s (c) 4 min 0 s (d) 5 min 0 s
  31. 31.⏱️ How many seconds is 1 minute 22 seconds?
  32. 32.⏱️ How many seconds is 8 minutes 16 seconds?
  33. 33.⏱️ A video is 300 seconds long. How long is that in minutes and seconds? (a) 3 min 0 s (b) 6 min 0 s (c) 5 min 0 s (d) 5 min 30 s
  34. 34.⏱️ How many seconds is 5 minutes 7 seconds?
  35. 35.⏱️ How many seconds is 9 minutes 21 seconds?
  36. 36.⏱️ A 22-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  37. 37.⏱️ A video is 495 seconds long. How long is that in minutes and seconds? (a) 4 min 95 s (b) 8 min 45 s (c) 8 min 15 s (d) 9 min 15 s
  38. 38.⏱️ A video has three clips of 39, 31 and 30 seconds. How long is the video (in seconds)?
  39. 39.⏱️ A 78-second clip is sped up to 3× speed. How long does it last now (in seconds)?
  40. 40.⏱️ A video has three clips of 26, 32 and 20 seconds. How long is the video (in seconds)?

Answer key

  1. 169
  2. 7 min 5 s
  3. 38
  4. 29
  5. 83
  6. the sum of the clips
  7. 40
  8. 3 min 30 s
  9. 80
  10. half as long
  11. 98
  12. 21
  13. 81
  14. 8 min 45 s
  15. 241
  16. 60
  17. 63
  18. 82
  19. 14
  20. 40
  21. 9 min 25 s
  22. 41
  23. 254
  24. 37
  25. 7
  26. 9 min 45 s
  27. 30
  28. 38
  29. 27
  30. 4 min 0 s
  31. 82
  32. 496
  33. 5 min 0 s
  34. 307
  35. 561
  36. 44
  37. 8 min 15 s
  38. 100
  39. 26
  40. 78

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