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Video Editing Worksheet: Video Length

Animation and design lesson 21: Video length sums · Set 136 · 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 3 minutes 58 seconds?
  2. 2.⏱️ Your video must be 180 seconds long. Your clips add up to 42 seconds. How many more seconds of video do you need?
  3. 3.⏱️ How many seconds is 8 minutes 26 seconds?
  4. 4.⏱️ A video has three clips of 31, 60 and 23 seconds. How long is the video (in seconds)?
  5. 5.⏱️ Your video must be 120 seconds long. Your clips add up to 50 seconds. How many more seconds of video do you need?
  6. 6.⏱️ A video is 525 seconds long. How long is that in minutes and seconds? (a) 8 min 45 s (b) 8 min 15 s (c) 5 min 25 s (d) 9 min 45 s
  7. 7.⏱️ A video is 430 seconds long. How long is that in minutes and seconds? (a) 4 min 30 s (b) 7 min 10 s (c) 7 min 40 s (d) 8 min 10 s
  8. 8.⏱️ A 16-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 10, 46 and 26 seconds. How long is the video (in seconds)?
  10. 10.⏱️ When you put clips one after another, the video length is … (a) the shortest clip (b) the sum of the clips (c) always 1 minute (d) the longest clip
  11. 11.⏱️ A video is 245 seconds long. How long is that in minutes and seconds? (a) 2 min 45 s (b) 4 min 5 s (c) 4 min 35 s (d) 5 min 5 s
  12. 12.⏱️ A 28-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  13. 13.⏱️ Your video must be 60 seconds long. Your clips add up to 36 seconds. How many more seconds of video do you need?
  14. 14.⏱️ A 28-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  15. 15.⏱️ A video is 210 seconds long. How long is that in minutes and seconds? (a) 2 min 10 s (b) 3 min 30 s (c) 4 min 30 s (d) 3 min 0 s
  16. 16.⏱️ A 24-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  17. 17.⏱️ A video has three clips of 26, 14 and 33 seconds. How long is the video (in seconds)?
  18. 18.⏱️ An 11-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  19. 19.⏱️ Speeding a clip up to 2× makes it … (a) the same length (b) twice as long (c) half as long (d) silent
  20. 20.⏱️ Your video must be 120 seconds long. Your clips add up to 88 seconds. How many more seconds of video do you need?
  21. 21.⏱️ Your video must be 180 seconds long. Your clips add up to 67 seconds. How many more seconds of video do you need?
  22. 22.⏱️ A video has three clips of 33, 30 and 10 seconds. How long is the video (in seconds)?
  23. 23.⏱️ How many seconds is 5 minutes 44 seconds?
  24. 24.⏱️ A 6-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  25. 25.⏱️ A 14-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  26. 26.⏱️ A 32-second clip is sped up to 4× speed. How long does it last now (in seconds)?
  27. 27.⏱️ How many seconds is 1 minute 50 seconds?
  28. 28.⏱️ A video has three clips of 5, 34 and 43 seconds. How long is the video (in seconds)?
  29. 29.⏱️ Your video must be 60 seconds long. Your clips add up to 17 seconds. How many more seconds of video do you need?
  30. 30.⏱️ 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
  31. 31.⏱️ A 108-second clip is sped up to 3× speed. How long does it last now (in seconds)?
  32. 32.⏱️ A 3-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  33. 33.⏱️ A 68-second clip is sped up to 4× speed. How long does it last now (in seconds)?
  34. 34.⏱️ A video has three clips of 41, 41 and 23 seconds. How long is the video (in seconds)?
  35. 35.⏱️ A 5-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  36. 36.⏱️ A 51-second clip is sped up to 3× speed. How long does it last now (in seconds)?
  37. 37.⏱️ How many seconds is 4 minutes 9 seconds?
  38. 38.⏱️ A 22-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  39. 39.⏱️ A 40-second clip is sped up to 4× speed. How long does it last now (in seconds)?
  40. 40.⏱️ A video is 150 seconds long. How long is that in minutes and seconds? (a) 1 min 50 s (b) 3 min 30 s (c) 2 min 30 s (d) 2 min 0 s

Answer key

  1. 238
  2. 138
  3. 506
  4. 114
  5. 70
  6. 8 min 45 s
  7. 7 min 10 s
  8. 32
  9. 82
  10. the sum of the clips
  11. 4 min 5 s
  12. 14
  13. 24
  14. 56
  15. 3 min 30 s
  16. 48
  17. 73
  18. 22
  19. half as long
  20. 32
  21. 113
  22. 73
  23. 344
  24. 12
  25. 7
  26. 8
  27. 110
  28. 82
  29. 43
  30. 3 min 50 s
  31. 36
  32. 6
  33. 17
  34. 105
  35. 10
  36. 17
  37. 249
  38. 44
  39. 10
  40. 2 min 30 s

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