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Video Editing Worksheet: Video Length

Animation and design lesson 21: Video length sums · Set 207 · 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) always 1 minute (b) the sum of the clips (c) the shortest clip (d) the longest clip
  2. 2.⏱️ A 60-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  3. 3.⏱️ A 7-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  4. 4.⏱️ A 10-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  5. 5.⏱️ A 99-second clip is sped up to 3× speed. How long does it last now (in seconds)?
  6. 6.⏱️ How many seconds are in 1 minute? (a) 100 (b) 60 (c) 10 (d) 30
  7. 7.⏱️ A video is 75 seconds long. How long is that in minutes and seconds? (a) 1 min 45 s (b) 1 min 15 s (c) 3 min 15 s (d) 2 min 15 s
  8. 8.⏱️ A 9-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  9. 9.⏱️ A 78-second clip is sped up to 3× speed. How long does it last now (in seconds)?
  10. 10.⏱️ An 11-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  11. 11.⏱️ A video has three clips of 40, 40 and 43 seconds. How long is the video (in seconds)?
  12. 12.⏱️ Speeding a clip up to 2× makes it … (a) twice as long (b) half as long (c) the same length (d) silent
  13. 13.⏱️ A video has three clips of 51, 47 and 38 seconds. How long is the video (in seconds)?
  14. 14.⏱️ A video has three clips of 51, 47 and 39 seconds. How long is the video (in seconds)?
  15. 15.⏱️ A video has three clips of 5, 10 and 21 seconds. How long is the video (in seconds)?
  16. 16.⏱️ How many seconds is 5 minutes 41 seconds?
  17. 17.⏱️ Your video must be 120 seconds long. Your clips add up to 42 seconds. How many more seconds of video do you need?
  18. 18.⏱️ A 52-second clip is sped up to 4× speed. How long does it last now (in seconds)?
  19. 19.⏱️ A video is 345 seconds long. How long is that in minutes and seconds? (a) 5 min 45 s (b) 3 min 45 s (c) 6 min 45 s (d) 5 min 15 s
  20. 20.⏱️ A 54-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  21. 21.⏱️ Your video must be 120 seconds long. Your clips add up to 75 seconds. How many more seconds of video do you need?
  22. 22.⏱️ A 4-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 17, 36 and 55 seconds. How long is the video (in seconds)?
  24. 24.⏱️ How many seconds is 9 minutes 24 seconds?
  25. 25.⏱️ A 6-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  26. 26.⏱️ Your video must be 180 seconds long. Your clips add up to 101 seconds. How many more seconds of video do you need?
  27. 27.⏱️ A video is 85 seconds long. How long is that in minutes and seconds? (a) 1 min 25 s (b) 1 min 55 s (c) 2 min 25 s (d) 3 min 25 s
  28. 28.⏱️ A video is 555 seconds long. How long is that in minutes and seconds? (a) 10 min 15 s (b) 9 min 15 s (c) 9 min 45 s (d) 5 min 55 s
  29. 29.⏱️ A video is 205 seconds long. How long is that in minutes and seconds? (a) 3 min 25 s (b) 4 min 25 s (c) 3 min 55 s (d) 2 min 5 s
  30. 30.⏱️ A video is 180 seconds long. How long is that in minutes and seconds? (a) 3 min 0 s (b) 1 min 80 s (c) 3 min 30 s (d) 4 min 0 s
  31. 31.⏱️ A video is 190 seconds long. How long is that in minutes and seconds? (a) 3 min 40 s (b) 3 min 10 s (c) 1 min 90 s (d) 4 min 10 s
  32. 32.⏱️ Your video must be 120 seconds long. Your clips add up to 24 seconds. How many more seconds of video do you need?
  33. 33.⏱️ A 14-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  34. 34.⏱️ How many seconds is 9 minutes 44 seconds?
  35. 35.⏱️ A video is 130 seconds long. How long is that in minutes and seconds? (a) 2 min 10 s (b) 3 min 10 s (c) 2 min 40 s (d) 1 min 30 s
  36. 36.⏱️ A 93-second clip is sped up to 3× speed. How long does it last now (in seconds)?
  37. 37.⏱️ A video is 495 seconds long. How long is that in minutes and seconds? (a) 4 min 95 s (b) 9 min 15 s (c) 8 min 15 s (d) 8 min 45 s
  38. 38.⏱️ A video has three clips of 7, 44 and 18 seconds. How long is the video (in seconds)?
  39. 39.⏱️ An 18-second clip is sped up to 3× speed. How long does it last now (in seconds)?
  40. 40.⏱️ A 21-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?

Answer key

  1. the sum of the clips
  2. 30
  3. 14
  4. 20
  5. 33
  6. 60
  7. 1 min 15 s
  8. 18
  9. 26
  10. 22
  11. 123
  12. half as long
  13. 136
  14. 137
  15. 36
  16. 341
  17. 78
  18. 13
  19. 5 min 45 s
  20. 27
  21. 45
  22. 8
  23. 108
  24. 564
  25. 12
  26. 79
  27. 1 min 25 s
  28. 9 min 15 s
  29. 3 min 25 s
  30. 3 min 0 s
  31. 3 min 10 s
  32. 96
  33. 7
  34. 584
  35. 2 min 10 s
  36. 31
  37. 8 min 15 s
  38. 69
  39. 6
  40. 42

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