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Video Editing Worksheet: Video Length

Animation and design lesson 21: Video length sums · Set 255 · 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.⏱️ When you put clips one after another, the video length is … (a) the longest clip (b) always 1 minute (c) the sum of the clips (d) the shortest clip
  2. 2.⏱️ A video has three clips of 35, 14 and 20 seconds. How long is the video (in seconds)?
  3. 3.⏱️ How many seconds is 6 minutes 42 seconds?
  4. 4.⏱️ A 76-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  5. 5.⏱️ How many seconds is 1 minute 15 seconds?
  6. 6.⏱️ A 46-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  7. 7.⏱️ A video is 430 seconds long. How long is that in minutes and seconds? (a) 8 min 10 s (b) 7 min 40 s (c) 7 min 10 s (d) 4 min 30 s
  8. 8.⏱️ A 6-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  9. 9.⏱️ How many seconds is 8 minutes 41 seconds?
  10. 10.⏱️ Your video must be 90 seconds long. Your clips add up to 85 seconds. How many more seconds of video do you need?
  11. 11.⏱️ A 12-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  12. 12.⏱️ How many seconds is 2 minutes 17 seconds?
  13. 13.⏱️ A 3-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  14. 14.⏱️ A 26-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  15. 15.⏱️ A video is 230 seconds long. How long is that in minutes and seconds? (a) 3 min 50 s (b) 4 min 50 s (c) 3 min 20 s (d) 2 min 30 s
  16. 16.⏱️ A video has three clips of 25, 50 and 17 seconds. How long is the video (in seconds)?
  17. 17.⏱️ A video has three clips of 48, 7 and 26 seconds. How long is the video (in seconds)?
  18. 18.⏱️ How many seconds are in 1 minute? (a) 30 (b) 100 (c) 60 (d) 10
  19. 19.⏱️ How many seconds is 8 minutes 53 seconds?
  20. 20.⏱️ Your video must be 60 seconds long. Your clips add up to 6 seconds. How many more seconds of video do you need?
  21. 21.⏱️ A video is 255 seconds long. How long is that in minutes and seconds? (a) 4 min 45 s (b) 2 min 55 s (c) 4 min 15 s (d) 5 min 15 s
  22. 22.⏱️ A video has three clips of 59, 10 and 34 seconds. How long is the video (in seconds)?
  23. 23.⏱️ A 54-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  24. 24.⏱️ A video is 440 seconds long. How long is that in minutes and seconds? (a) 8 min 20 s (b) 7 min 50 s (c) 4 min 40 s (d) 7 min 20 s
  25. 25.⏱️ A video is 380 seconds long. How long is that in minutes and seconds? (a) 3 min 80 s (b) 6 min 50 s (c) 6 min 20 s (d) 7 min 20 s
  26. 26.⏱️ A 20-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  27. 27.⏱️ A video has three clips of 18, 24 and 51 seconds. How long is the video (in seconds)?
  28. 28.⏱️ A video has three clips of 48, 33 and 24 seconds. How long is the video (in seconds)?
  29. 29.⏱️ A video is 505 seconds long. How long is that in minutes and seconds? (a) 8 min 55 s (b) 8 min 25 s (c) 9 min 25 s (d) 5 min 5 s
  30. 30.⏱️ Speeding a clip up to 2× makes it … (a) silent (b) the same length (c) half as long (d) twice as long
  31. 31.⏱️ A 62-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  32. 32.⏱️ A 160-second clip is sped up to 4× speed. How long does it last now (in seconds)?
  33. 33.⏱️ Your video must be 60 seconds long. Your clips add up to 12 seconds. How many more seconds of video do you need?
  34. 34.⏱️ How many seconds is 6 minutes 31 seconds?
  35. 35.⏱️ A 17-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  36. 36.⏱️ How many seconds is 2 minutes 11 seconds?
  37. 37.⏱️ A 102-second clip is sped up to 3× speed. How long does it last now (in seconds)?
  38. 38.⏱️ A 14-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  39. 39.⏱️ A 66-second clip is sped up to 3× speed. How long does it last now (in seconds)?
  40. 40.⏱️ A video is 415 seconds long. How long is that in minutes and seconds? (a) 6 min 55 s (b) 7 min 55 s (c) 6 min 25 s (d) 4 min 15 s

Answer key

  1. the sum of the clips
  2. 69
  3. 402
  4. 38
  5. 75
  6. 23
  7. 7 min 10 s
  8. 12
  9. 521
  10. 5
  11. 24
  12. 137
  13. 6
  14. 52
  15. 3 min 50 s
  16. 92
  17. 81
  18. 60
  19. 533
  20. 54
  21. 4 min 15 s
  22. 103
  23. 27
  24. 7 min 20 s
  25. 6 min 20 s
  26. 10
  27. 93
  28. 105
  29. 8 min 25 s
  30. half as long
  31. 31
  32. 40
  33. 48
  34. 391
  35. 34
  36. 131
  37. 34
  38. 28
  39. 22
  40. 6 min 55 s

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