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Video Editing Worksheet: Video Length

Animation and design lesson 21: Video length sums · Set 103 · 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.⏱️ A 36-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) twice as long (b) silent (c) half as long (d) the same length
  3. 3.⏱️ Your video must be 60 seconds long. Your clips add up to 10 seconds. How many more seconds of video do you need?
  4. 4.⏱️ How many seconds are in 1 minute? (a) 30 (b) 10 (c) 60 (d) 100
  5. 5.⏱️ A video has three clips of 8, 19 and 31 seconds. How long is the video (in seconds)?
  6. 6.⏱️ A 64-second clip is sped up to 4× speed. How long does it last now (in seconds)?
  7. 7.⏱️ A video has three clips of 31, 51 and 22 seconds. How long is the video (in seconds)?
  8. 8.⏱️ When you put clips one after another, the video length is … (a) the longest clip (b) always 1 minute (c) the shortest clip (d) the sum of the clips
  9. 9.⏱️ A video has three clips of 7, 41 and 40 seconds. How long is the video (in seconds)?
  10. 10.⏱️ A video has three clips of 27, 55 and 35 seconds. How long is the video (in seconds)?
  11. 11.⏱️ Your video must be 60 seconds long. Your clips add up to 22 seconds. How many more seconds of video do you need?
  12. 12.⏱️ A 5-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  13. 13.⏱️ Your video must be 60 seconds long. Your clips add up to 49 seconds. How many more seconds of video do you need?
  14. 14.⏱️ A video has three clips of 35, 5 and 5 seconds. How long is the video (in seconds)?
  15. 15.⏱️ A video has three clips of 26, 36 and 18 seconds. How long is the video (in seconds)?
  16. 16.⏱️ Your video must be 60 seconds long. Your clips add up to 33 seconds. How many more seconds of video do you need?
  17. 17.⏱️ A video is 360 seconds long. How long is that in minutes and seconds? (a) 7 min 0 s (b) 3 min 60 s (c) 6 min 30 s (d) 6 min 0 s
  18. 18.⏱️ A 54-second clip is sped up to 3× speed. How long does it last now (in seconds)?
  19. 19.⏱️ A video has three clips of 52, 22 and 9 seconds. How long is the video (in seconds)?
  20. 20.⏱️ A 3-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  21. 21.⏱️ A 156-second clip is sped up to 4× speed. How long does it last now (in seconds)?
  22. 22.⏱️ A video has three clips of 47, 31 and 11 seconds. How long is the video (in seconds)?
  23. 23.⏱️ A video is 270 seconds long. How long is that in minutes and seconds? (a) 4 min 30 s (b) 2 min 70 s (c) 5 min 30 s (d) 4 min 0 s
  24. 24.⏱️ How many seconds is 1 minute 14 seconds?
  25. 25.⏱️ A video is 125 seconds long. How long is that in minutes and seconds? (a) 3 min 5 s (b) 1 min 25 s (c) 2 min 5 s (d) 2 min 35 s
  26. 26.⏱️ A video has three clips of 48, 25 and 13 seconds. How long is the video (in seconds)?
  27. 27.⏱️ A video is 305 seconds long. How long is that in minutes and seconds? (a) 6 min 5 s (b) 5 min 35 s (c) 5 min 5 s (d) 3 min 5 s
  28. 28.⏱️ How many seconds is 6 minutes 17 seconds?
  29. 29.⏱️ A 48-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  30. 30.⏱️ Your video must be 90 seconds long. Your clips add up to 21 seconds. How many more seconds of video do you need?
  31. 31.⏱️ A video is 585 seconds long. How long is that in minutes and seconds? (a) 9 min 45 s (b) 10 min 45 s (c) 5 min 85 s (d) 9 min 15 s
  32. 32.⏱️ Your video must be 60 seconds long. Your clips add up to 16 seconds. How many more seconds of video do you need?
  33. 33.⏱️ A video is 445 seconds long. How long is that in minutes and seconds? (a) 4 min 45 s (b) 7 min 55 s (c) 8 min 25 s (d) 7 min 25 s
  34. 34.⏱️ Your video must be 60 seconds long. Your clips add up to 14 seconds. How many more seconds of video do you need?
  35. 35.⏱️ A 66-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  36. 36.⏱️ How many seconds is 7 minutes 18 seconds?
  37. 37.⏱️ A video has three clips of 60, 41 and 16 seconds. How long is the video (in seconds)?
  38. 38.⏱️ A video has three clips of 13, 12 and 11 seconds. How long is the video (in seconds)?
  39. 39.⏱️ Your video must be 90 seconds long. Your clips add up to 23 seconds. How many more seconds of video do you need?
  40. 40.⏱️ A 28-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?

Answer key

  1. 12
  2. half as long
  3. 50
  4. 60
  5. 58
  6. 16
  7. 104
  8. the sum of the clips
  9. 88
  10. 117
  11. 38
  12. 10
  13. 11
  14. 45
  15. 80
  16. 27
  17. 6 min 0 s
  18. 18
  19. 83
  20. 6
  21. 39
  22. 89
  23. 4 min 30 s
  24. 74
  25. 2 min 5 s
  26. 86
  27. 5 min 5 s
  28. 377
  29. 24
  30. 69
  31. 9 min 45 s
  32. 44
  33. 7 min 25 s
  34. 46
  35. 33
  36. 438
  37. 117
  38. 36
  39. 67
  40. 56

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