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Video Editing Worksheet: Video Length

Animation and design lesson 21: Video length sums · Set 327 · 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.⏱️ An 11-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  2. 2.⏱️ When you put clips one after another, the video length is … (a) the longest clip (b) the sum of the clips (c) always 1 minute (d) the shortest clip
  3. 3.⏱️ A video has three clips of 38, 9 and 26 seconds. How long is the video (in seconds)?
  4. 4.⏱️ A video is 395 seconds long. How long is that in minutes and seconds? (a) 6 min 5 s (b) 7 min 35 s (c) 6 min 35 s (d) 3 min 95 s
  5. 5.⏱️ Your video must be 180 seconds long. Your clips add up to 103 seconds. How many more seconds of video do you need?
  6. 6.⏱️ A video has three clips of 46, 55 and 6 seconds. How long is the video (in seconds)?
  7. 7.⏱️ Speeding a clip up to 2× makes it … (a) twice as long (b) half as long (c) silent (d) the same length
  8. 8.⏱️ Your video must be 180 seconds long. Your clips add up to 9 seconds. How many more seconds of video do you need?
  9. 9.⏱️ Your video must be 180 seconds long. Your clips add up to 88 seconds. How many more seconds of video do you need?
  10. 10.⏱️ A 28-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  11. 11.⏱️ How many seconds is 7 minutes 14 seconds?
  12. 12.⏱️ A video is 575 seconds long. How long is that in minutes and seconds? (a) 9 min 5 s (b) 5 min 75 s (c) 9 min 35 s (d) 10 min 35 s
  13. 13.⏱️ How many seconds is 7 minutes 9 seconds?
  14. 14.⏱️ Your video must be 180 seconds long. Your clips add up to 70 seconds. How many more seconds of video do you need?
  15. 15.⏱️ How many seconds is 9 minutes 13 seconds?
  16. 16.⏱️ Your video must be 120 seconds long. Your clips add up to 27 seconds. How many more seconds of video do you need?
  17. 17.⏱️ A video has three clips of 59, 19 and 51 seconds. How long is the video (in seconds)?
  18. 18.⏱️ A 30-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  19. 19.⏱️ How many seconds is 2 minutes 48 seconds?
  20. 20.⏱️ How many seconds is 4 minutes 2 seconds?
  21. 21.⏱️ Your video must be 90 seconds long. Your clips add up to 54 seconds. How many more seconds of video do you need?
  22. 22.⏱️ How many seconds are in 1 minute? (a) 10 (b) 100 (c) 30 (d) 60
  23. 23.⏱️ Your video must be 60 seconds long. Your clips add up to 51 seconds. How many more seconds of video do you need?
  24. 24.⏱️ A 27-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  25. 25.⏱️ A video has three clips of 21, 19 and 27 seconds. How long is the video (in seconds)?
  26. 26.⏱️ A 23-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  27. 27.⏱️ A 54-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  28. 28.⏱️ A video is 115 seconds long. How long is that in minutes and seconds? (a) 1 min 15 s (b) 1 min 25 s (c) 2 min 55 s (d) 1 min 55 s
  29. 29.⏱️ A video has three clips of 27, 41 and 33 seconds. How long is the video (in seconds)?
  30. 30.⏱️ A 26-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  31. 31.⏱️ A video has three clips of 47, 11 and 20 seconds. How long is the video (in seconds)?
  32. 32.⏱️ A video has three clips of 9, 50 and 42 seconds. How long is the video (in seconds)?
  33. 33.⏱️ A 96-second clip is sped up to 3× speed. How long does it last now (in seconds)?
  34. 34.⏱️ A video has three clips of 9, 46 and 9 seconds. How long is the video (in seconds)?
  35. 35.⏱️ A video has three clips of 21, 45 and 39 seconds. How long is the video (in seconds)?
  36. 36.⏱️ A video has three clips of 12, 45 and 35 seconds. How long is the video (in seconds)?
  37. 37.⏱️ A video has three clips of 39, 55 and 33 seconds. How long is the video (in 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 video is 120 seconds long. How long is that in minutes and seconds? (a) 2 min 0 s (b) 3 min 0 s (c) 1 min 20 s (d) 2 min 30 s
  40. 40.⏱️ A video is 490 seconds long. How long is that in minutes and seconds? (a) 8 min 40 s (b) 4 min 90 s (c) 9 min 10 s (d) 8 min 10 s

Answer key

  1. 22
  2. the sum of the clips
  3. 73
  4. 6 min 35 s
  5. 77
  6. 107
  7. half as long
  8. 171
  9. 92
  10. 14
  11. 434
  12. 9 min 35 s
  13. 429
  14. 110
  15. 553
  16. 93
  17. 129
  18. 60
  19. 168
  20. 242
  21. 36
  22. 60
  23. 9
  24. 54
  25. 67
  26. 46
  27. 27
  28. 1 min 55 s
  29. 101
  30. 52
  31. 78
  32. 101
  33. 32
  34. 64
  35. 105
  36. 92
  37. 127
  38. 44
  39. 2 min 0 s
  40. 8 min 10 s

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