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Video Editing Worksheet: Video Length

Animation and design lesson 21: Video length sums · Set 150 · 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.⏱️ An 87-second clip is sped up to 3× speed. How long does it last now (in seconds)?
  2. 2.⏱️ Speeding a clip up to 2× makes it … (a) silent (b) the same length (c) half as long (d) twice as long
  3. 3.⏱️ Your video must be 60 seconds long. Your clips add up to 6 seconds. How many more seconds of video do you need?
  4. 4.⏱️ A video has three clips of 49, 8 and 58 seconds. How long is the video (in seconds)?
  5. 5.⏱️ A 20-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 61 seconds. How many more seconds of video do you need?
  7. 7.⏱️ A 76-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  8. 8.⏱️ How many seconds is 3 minutes 8 seconds?
  9. 9.⏱️ Your video must be 90 seconds long. Your clips add up to 34 seconds. How many more seconds of video do you need?
  10. 10.⏱️ Your video must be 60 seconds long. Your clips add up to 43 seconds. How many more seconds of video do you need?
  11. 11.⏱️ A 22-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  12. 12.⏱️ A 16-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  13. 13.⏱️ 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
  14. 14.⏱️ A 15-second clip is sped up to 3× speed. How long does it last now (in seconds)?
  15. 15.⏱️ A video has three clips of 57, 11 and 41 seconds. How long is the video (in seconds)?
  16. 16.⏱️ Your video must be 60 seconds long. Your clips add up to 14 seconds. How many more seconds of video do you need?
  17. 17.⏱️ How many seconds is 2 minutes 2 seconds?
  18. 18.⏱️ How many seconds is 3 minutes 1 second?
  19. 19.⏱️ How many seconds is 2 minutes 17 seconds?
  20. 20.⏱️ A video is 125 seconds long. How long is that in minutes and seconds? (a) 1 min 25 s (b) 3 min 5 s (c) 2 min 5 s (d) 2 min 35 s
  21. 21.⏱️ How many seconds is 8 minutes 30 seconds?
  22. 22.⏱️ A video has three clips of 22, 25 and 40 seconds. How long is the video (in seconds)?
  23. 23.⏱️ A video is 400 seconds long. How long is that in minutes and seconds? (a) 6 min 10 s (b) 7 min 40 s (c) 4 min 0 s (d) 6 min 40 s
  24. 24.⏱️ A 26-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  25. 25.⏱️ How many seconds are in 1 minute? (a) 60 (b) 100 (c) 30 (d) 10
  26. 26.⏱️ A 128-second clip is sped up to 4× speed. How long does it last now (in seconds)?
  27. 27.⏱️ Your video must be 120 seconds long. Your clips add up to 26 seconds. How many more seconds of video do you need?
  28. 28.⏱️ How many seconds is 1 minute 52 seconds?
  29. 29.⏱️ A 124-second clip is sped up to 4× speed. How long does it last now (in seconds)?
  30. 30.⏱️ A video is 475 seconds long. How long is that in minutes and seconds? (a) 7 min 25 s (b) 4 min 75 s (c) 8 min 55 s (d) 7 min 55 s
  31. 31.⏱️ A 16-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  32. 32.⏱️ How many seconds is 1 minute 17 seconds?
  33. 33.⏱️ A video is 250 seconds long. How long is that in minutes and seconds? (a) 2 min 50 s (b) 4 min 40 s (c) 4 min 10 s (d) 5 min 10 s
  34. 34.⏱️ A video has three clips of 5, 41 and 5 seconds. How long is the video (in seconds)?
  35. 35.⏱️ A video is 470 seconds long. How long is that in minutes and seconds? (a) 8 min 50 s (b) 4 min 70 s (c) 7 min 20 s (d) 7 min 50 s
  36. 36.⏱️ A video is 540 seconds long. How long is that in minutes and seconds? (a) 5 min 40 s (b) 10 min 0 s (c) 9 min 30 s (d) 9 min 0 s
  37. 37.⏱️ How many seconds is 5 minutes 14 seconds?
  38. 38.⏱️ Your video must be 60 seconds long. Your clips add up to 30 seconds. How many more seconds of video do you need?
  39. 39.⏱️ A video is 455 seconds long. How long is that in minutes and seconds? (a) 7 min 5 s (b) 7 min 35 s (c) 4 min 55 s (d) 8 min 35 s
  40. 40.⏱️ A 28-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?

Answer key

  1. 29
  2. half as long
  3. 54
  4. 115
  5. 40
  6. 29
  7. 38
  8. 188
  9. 56
  10. 17
  11. 44
  12. 8
  13. the sum of the clips
  14. 5
  15. 109
  16. 46
  17. 122
  18. 181
  19. 137
  20. 2 min 5 s
  21. 510
  22. 87
  23. 6 min 40 s
  24. 52
  25. 60
  26. 32
  27. 94
  28. 112
  29. 31
  30. 7 min 55 s
  31. 32
  32. 77
  33. 4 min 10 s
  34. 51
  35. 7 min 50 s
  36. 9 min 0 s
  37. 314
  38. 30
  39. 7 min 35 s
  40. 56

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