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Video Editing Worksheet: Video Length

Animation and design lesson 21: Video length sums · Set 186 · 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 shortest clip (b) always 1 minute (c) the longest clip (d) the sum of the clips
  2. 2.⏱️ A 102-second clip is sped up to 3× speed. How long does it last now (in seconds)?
  3. 3.⏱️ A 56-second clip is sped up to 4× speed. How long does it last now (in seconds)?
  4. 4.⏱️ An 88-second clip is sped up to 4× speed. How long does it last now (in seconds)?
  5. 5.⏱️ How many seconds is 5 minutes 39 seconds?
  6. 6.⏱️ How many seconds are in 1 minute? (a) 60 (b) 30 (c) 100 (d) 10
  7. 7.⏱️ How many seconds is 4 minutes 14 seconds?
  8. 8.⏱️ Speeding a clip up to 2× makes it … (a) half as long (b) the same length (c) twice as long (d) silent
  9. 9.⏱️ How many seconds is 1 minute 7 seconds?
  10. 10.⏱️ A 96-second clip is sped up to 3× speed. How long does it last now (in seconds)?
  11. 11.⏱️ Your video must be 60 seconds long. Your clips add up to 51 seconds. How many more seconds of video do you need?
  12. 12.⏱️ A video has three clips of 44, 42 and 5 seconds. How long is the video (in seconds)?
  13. 13.⏱️ A 14-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  14. 14.⏱️ 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
  15. 15.⏱️ A 12-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  16. 16.⏱️ A video is 540 seconds long. How long is that in minutes and seconds? (a) 10 min 0 s (b) 9 min 30 s (c) 5 min 40 s (d) 9 min 0 s
  17. 17.⏱️ Your video must be 180 seconds long. Your clips add up to 124 seconds. How many more seconds of video do you need?
  18. 18.⏱️ An 8-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  19. 19.⏱️ A 74-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  20. 20.⏱️ A 58-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  21. 21.⏱️ A 64-second clip is sped up to 4× speed. How long does it last now (in seconds)?
  22. 22.⏱️ A 12-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  23. 23.⏱️ A video has three clips of 44, 21 and 27 seconds. How long is the video (in seconds)?
  24. 24.⏱️ Your video must be 180 seconds long. Your clips add up to 27 seconds. How many more seconds of video do you need?
  25. 25.⏱️ Your video must be 120 seconds long. Your clips add up to 12 seconds. How many more seconds of video do you need?
  26. 26.⏱️ Your video must be 120 seconds long. Your clips add up to 36 seconds. How many more seconds of video do you need?
  27. 27.⏱️ Your video must be 180 seconds long. Your clips add up to 61 seconds. How many more seconds of video do you need?
  28. 28.⏱️ A video has three clips of 40, 25 and 20 seconds. How long is the video (in seconds)?
  29. 29.⏱️ A video has three clips of 50, 11 and 50 seconds. How long is the video (in seconds)?
  30. 30.⏱️ A video has three clips of 32, 56 and 7 seconds. How long is the video (in seconds)?
  31. 31.⏱️ A 112-second clip is sped up to 4× speed. How long does it last now (in seconds)?
  32. 32.⏱️ A video has three clips of 40, 12 and 17 seconds. How long is the video (in seconds)?
  33. 33.⏱️ A 9-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  34. 34.⏱️ A video has three clips of 41, 55 and 11 seconds. How long is the video (in seconds)?
  35. 35.⏱️ How many seconds is 8 minutes 57 seconds?
  36. 36.⏱️ Your video must be 60 seconds long. Your clips add up to 43 seconds. How many more seconds of video do you need?
  37. 37.⏱️ A video has three clips of 48, 34 and 47 seconds. How long is the video (in seconds)?
  38. 38.⏱️ Your video must be 90 seconds long. Your clips add up to 80 seconds. How many more seconds of video do you need?
  39. 39.⏱️ A 156-second clip is sped up to 4× speed. How long does it last now (in seconds)?
  40. 40.⏱️ A video has three clips of 42, 7 and 15 seconds. How long is the video (in seconds)?

Answer key

  1. the sum of the clips
  2. 34
  3. 14
  4. 22
  5. 339
  6. 60
  7. 254
  8. half as long
  9. 67
  10. 32
  11. 9
  12. 91
  13. 28
  14. 7 min 50 s
  15. 6
  16. 9 min 0 s
  17. 56
  18. 16
  19. 37
  20. 29
  21. 16
  22. 24
  23. 92
  24. 153
  25. 108
  26. 84
  27. 119
  28. 85
  29. 111
  30. 95
  31. 28
  32. 69
  33. 18
  34. 107
  35. 537
  36. 17
  37. 129
  38. 10
  39. 39
  40. 64

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