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Video Editing Worksheet: Video Length

Animation and design lesson 21: Video length sums · Set 321 · 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 video has three clips of 57, 39 and 39 seconds. How long is the video (in seconds)?
  2. 2.⏱️ Your video must be 60 seconds long. Your clips add up to 13 seconds. How many more seconds of video do you need?
  3. 3.⏱️ Your video must be 60 seconds long. Your clips add up to 11 seconds. How many more seconds of video do you need?
  4. 4.⏱️ A 30-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  5. 5.⏱️ A 26-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  6. 6.⏱️ A video has three clips of 36, 41 and 38 seconds. How long is the video (in seconds)?
  7. 7.⏱️ How many seconds are in 1 minute? (a) 100 (b) 10 (c) 60 (d) 30
  8. 8.⏱️ A video has three clips of 30, 10 and 49 seconds. How long is the video (in seconds)?
  9. 9.⏱️ Your video must be 180 seconds long. Your clips add up to 169 seconds. How many more seconds of video do you need?
  10. 10.⏱️ A video has three clips of 56, 10 and 23 seconds. How long is the video (in seconds)?
  11. 11.⏱️ A 3-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  12. 12.⏱️ A video has three clips of 46, 11 and 17 seconds. How long is the video (in seconds)?
  13. 13.⏱️ A 10-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  14. 14.⏱️ When you put clips one after another, the video length is … (a) the longest clip (b) the sum of the clips (c) the shortest clip (d) always 1 minute
  15. 15.⏱️ A video is 185 seconds long. How long is that in minutes and seconds? (a) 3 min 35 s (b) 3 min 5 s (c) 1 min 85 s (d) 4 min 5 s
  16. 16.⏱️ A 16-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  17. 17.⏱️ A 6-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  18. 18.⏱️ Your video must be 90 seconds long. Your clips add up to 37 seconds. How many more seconds of video do you need?
  19. 19.⏱️ Your video must be 120 seconds long. Your clips add up to 88 seconds. How many more seconds of video do you need?
  20. 20.⏱️ A 12-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  21. 21.⏱️ An 18-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  22. 22.⏱️ A video is 470 seconds long. How long is that in minutes and seconds? (a) 4 min 70 s (b) 7 min 50 s (c) 8 min 50 s (d) 7 min 20 s
  23. 23.⏱️ A 25-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  24. 24.⏱️ Speeding a clip up to 2× makes it … (a) half as long (b) twice as long (c) the same length (d) silent
  25. 25.⏱️ How many seconds is 7 minutes 52 seconds?
  26. 26.⏱️ A video has three clips of 42, 17 and 23 seconds. How long is the video (in seconds)?
  27. 27.⏱️ How many seconds is 7 minutes 23 seconds?
  28. 28.⏱️ A video is 235 seconds long. How long is that in minutes and seconds? (a) 4 min 55 s (b) 2 min 35 s (c) 3 min 55 s (d) 3 min 25 s
  29. 29.⏱️ A 15-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  30. 30.⏱️ A video has three clips of 51, 7 and 35 seconds. How long is the video (in seconds)?
  31. 31.⏱️ A 54-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  32. 32.⏱️ A 114-second clip is sped up to 3× speed. How long does it last now (in seconds)?
  33. 33.⏱️ Your video must be 180 seconds long. Your clips add up to 170 seconds. How many more seconds of video do you need?
  34. 34.⏱️ An 11-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  35. 35.⏱️ How many seconds is 9 minutes 25 seconds?
  36. 36.⏱️ Your video must be 60 seconds long. Your clips add up to 23 seconds. How many more seconds of video do you need?
  37. 37.⏱️ An 8-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  38. 38.⏱️ A 20-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  39. 39.⏱️ Your video must be 90 seconds long. Your clips add up to 11 seconds. How many more seconds of video do you need?
  40. 40.⏱️ A video has three clips of 48, 58 and 39 seconds. How long is the video (in seconds)?

Answer key

  1. 135
  2. 47
  3. 49
  4. 60
  5. 52
  6. 115
  7. 60
  8. 89
  9. 11
  10. 89
  11. 6
  12. 74
  13. 5
  14. the sum of the clips
  15. 3 min 5 s
  16. 32
  17. 12
  18. 53
  19. 32
  20. 24
  21. 36
  22. 7 min 50 s
  23. 50
  24. half as long
  25. 472
  26. 82
  27. 443
  28. 3 min 55 s
  29. 30
  30. 93
  31. 27
  32. 38
  33. 10
  34. 22
  35. 565
  36. 37
  37. 16
  38. 40
  39. 79
  40. 145

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