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Video Editing Worksheet: Video Length

Animation and design lesson 21: Video length sums · Set 322 · 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 26, 46 and 40 seconds. How long is the video (in seconds)?
  2. 2.⏱️ 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
  3. 3.⏱️ An 11-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  4. 4.⏱️ A video has three clips of 47, 54 and 57 seconds. How long is the video (in seconds)?
  5. 5.⏱️ A 27-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  6. 6.⏱️ A 15-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  7. 7.⏱️ A video has three clips of 31, 56 and 21 seconds. How long is the video (in seconds)?
  8. 8.⏱️ A video has three clips of 43, 29 and 24 seconds. How long is the video (in seconds)?
  9. 9.⏱️ Your video must be 180 seconds long. Your clips add up to 80 seconds. How many more seconds of video do you need?
  10. 10.⏱️ How many seconds is 6 minutes 18 seconds?
  11. 11.⏱️ A video has three clips of 57, 48 and 15 seconds. How long is the video (in seconds)?
  12. 12.⏱️ How many seconds is 6 minutes 19 seconds?
  13. 13.⏱️ A video is 430 seconds long. How long is that in minutes and seconds? (a) 7 min 10 s (b) 8 min 10 s (c) 4 min 30 s (d) 7 min 40 s
  14. 14.⏱️ A video has three clips of 58, 60 and 23 seconds. How long is the video (in seconds)?
  15. 15.⏱️ A 50-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  16. 16.⏱️ How many seconds are in 1 minute? (a) 60 (b) 10 (c) 100 (d) 30
  17. 17.⏱️ A video is 410 seconds long. How long is that in minutes and seconds? (a) 6 min 50 s (b) 6 min 20 s (c) 7 min 50 s (d) 4 min 10 s
  18. 18.⏱️ Your video must be 60 seconds long. Your clips add up to 10 seconds. How many more seconds of video do you need?
  19. 19.⏱️ How many seconds is 4 minutes 38 seconds?
  20. 20.⏱️ Your video must be 180 seconds long. Your clips add up to 115 seconds. How many more seconds of video do you need?
  21. 21.⏱️ A 24-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  22. 22.⏱️ A video has three clips of 54, 56 and 38 seconds. How long is the video (in seconds)?
  23. 23.⏱️ How many seconds is 1 minute 7 seconds?
  24. 24.⏱️ A 34-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  25. 25.⏱️ Your video must be 90 seconds long. Your clips add up to 67 seconds. How many more seconds of video do you need?
  26. 26.⏱️ Your video must be 60 seconds long. Your clips add up to 50 seconds. How many more seconds of video do you need?
  27. 27.⏱️ Your video must be 60 seconds long. Your clips add up to 32 seconds. How many more seconds of video do you need?
  28. 28.⏱️ Your video must be 60 seconds long. Your clips add up to 24 seconds. How many more seconds of video do you need?
  29. 29.⏱️ Your video must be 120 seconds long. Your clips add up to 42 seconds. How many more seconds of video do you need?
  30. 30.⏱️ Speeding a clip up to 2× makes it … (a) twice as long (b) the same length (c) half as long (d) silent
  31. 31.⏱️ Your video must be 180 seconds long. Your clips add up to 95 seconds. How many more seconds of video do you need?
  32. 32.⏱️ How many seconds is 2 minutes 23 seconds?
  33. 33.⏱️ A 28-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  34. 34.⏱️ A 26-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  35. 35.⏱️ A video has three clips of 30, 32 and 28 seconds. How long is the video (in seconds)?
  36. 36.⏱️ A 22-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  37. 37.⏱️ How many seconds is 9 minutes 23 seconds?
  38. 38.⏱️ A video is 515 seconds long. How long is that in minutes and seconds? (a) 8 min 35 s (b) 8 min 5 s (c) 5 min 15 s (d) 9 min 35 s
  39. 39.⏱️ Your video must be 90 seconds long. Your clips add up to 37 seconds. How many more seconds of video do you need?
  40. 40.⏱️ A 19-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?

Answer key

  1. 112
  2. the sum of the clips
  3. 22
  4. 158
  5. 54
  6. 30
  7. 108
  8. 96
  9. 100
  10. 378
  11. 120
  12. 379
  13. 7 min 10 s
  14. 141
  15. 25
  16. 60
  17. 6 min 50 s
  18. 50
  19. 278
  20. 65
  21. 12
  22. 148
  23. 67
  24. 17
  25. 23
  26. 10
  27. 28
  28. 36
  29. 78
  30. half as long
  31. 85
  32. 143
  33. 14
  34. 13
  35. 90
  36. 44
  37. 563
  38. 8 min 35 s
  39. 53
  40. 38

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