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Video Editing Worksheet: Video Length

Animation and design lesson 21: Video length sums · Set 22 · 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 16-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  2. 2.⏱️ Speeding a clip up to 2× makes it … (a) twice as long (b) the same length (c) half as long (d) silent
  3. 3.⏱️ Your video must be 180 seconds long. Your clips add up to 125 seconds. How many more seconds of video do you need?
  4. 4.⏱️ How many seconds is 8 minutes 1 second?
  5. 5.⏱️ A video has three clips of 55, 13 and 6 seconds. How long is the video (in seconds)?
  6. 6.⏱️ A 30-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  7. 7.⏱️ A 112-second clip is sped up to 4× speed. How long does it last now (in seconds)?
  8. 8.⏱️ How many seconds is 8 minutes 33 seconds?
  9. 9.⏱️ A 105-second clip is sped up to 3× speed. How long does it last now (in seconds)?
  10. 10.⏱️ How many seconds is 4 minutes 20 seconds?
  11. 11.⏱️ A video has three clips of 21, 48 and 29 seconds. How long is the video (in seconds)?
  12. 12.⏱️ A video is 455 seconds long. How long is that in minutes and seconds? (a) 4 min 55 s (b) 7 min 5 s (c) 8 min 35 s (d) 7 min 35 s
  13. 13.⏱️ A 70-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  14. 14.⏱️ A 6-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  15. 15.⏱️ How many seconds is 9 minutes 53 seconds?
  16. 16.⏱️ Your video must be 60 seconds long. Your clips add up to 12 seconds. How many more seconds of video do you need?
  17. 17.⏱️ How many seconds is 4 minutes 44 seconds?
  18. 18.⏱️ When you put clips one after another, the video length is … (a) the shortest clip (b) the longest clip (c) always 1 minute (d) the sum of the clips
  19. 19.⏱️ A video is 375 seconds long. How long is that in minutes and seconds? (a) 3 min 75 s (b) 6 min 15 s (c) 6 min 45 s (d) 7 min 15 s
  20. 20.⏱️ A 140-second clip is sped up to 4× speed. How long does it last now (in seconds)?
  21. 21.⏱️ A video has three clips of 15, 40 and 33 seconds. How long is the video (in seconds)?
  22. 22.⏱️ A video is 135 seconds long. How long is that in minutes and seconds? (a) 1 min 35 s (b) 3 min 15 s (c) 2 min 45 s (d) 2 min 15 s
  23. 23.⏱️ A video has three clips of 31, 21 and 5 seconds. How long is the video (in seconds)?
  24. 24.⏱️ A 17-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  25. 25.⏱️ How many seconds is 4 minutes 3 seconds?
  26. 26.⏱️ A 21-second clip is sped up to 3× speed. How long does it last now (in seconds)?
  27. 27.⏱️ How many seconds is 8 minutes 55 seconds?
  28. 28.⏱️ A 12-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  29. 29.⏱️ Your video must be 60 seconds long. Your clips add up to 30 seconds. How many more seconds of video do you need?
  30. 30.⏱️ Your video must be 90 seconds long. Your clips add up to 11 seconds. How many more seconds of video do you need?
  31. 31.⏱️ A video has three clips of 60, 48 and 24 seconds. How long is the video (in seconds)?
  32. 32.⏱️ A video is 310 seconds long. How long is that in minutes and seconds? (a) 5 min 40 s (b) 6 min 10 s (c) 3 min 10 s (d) 5 min 10 s
  33. 33.⏱️ A 108-second clip is sped up to 3× speed. How long does it last now (in seconds)?
  34. 34.⏱️ A 10-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  35. 35.⏱️ A 111-second clip is sped up to 3× speed. How long does it last now (in seconds)?
  36. 36.⏱️ A video is 170 seconds long. How long is that in minutes and seconds? (a) 3 min 50 s (b) 1 min 70 s (c) 2 min 20 s (d) 2 min 50 s
  37. 37.⏱️ A video is 555 seconds long. How long is that in minutes and seconds? (a) 9 min 45 s (b) 10 min 15 s (c) 9 min 15 s (d) 5 min 55 s
  38. 38.⏱️ A 93-second clip is sped up to 3× speed. How long does it last now (in seconds)?
  39. 39.⏱️ A video is 80 seconds long. How long is that in minutes and seconds? (a) 1 min 50 s (b) 1 min 20 s (c) 2 min 20 s (d) 3 min 20 s
  40. 40.⏱️ A 132-second clip is sped up to 4× speed. How long does it last now (in seconds)?

Answer key

  1. 8
  2. half as long
  3. 55
  4. 481
  5. 74
  6. 60
  7. 28
  8. 513
  9. 35
  10. 260
  11. 98
  12. 7 min 35 s
  13. 35
  14. 12
  15. 593
  16. 48
  17. 284
  18. the sum of the clips
  19. 6 min 15 s
  20. 35
  21. 88
  22. 2 min 15 s
  23. 57
  24. 34
  25. 243
  26. 7
  27. 535
  28. 24
  29. 30
  30. 79
  31. 132
  32. 5 min 10 s
  33. 36
  34. 20
  35. 37
  36. 2 min 50 s
  37. 9 min 15 s
  38. 31
  39. 1 min 20 s
  40. 33

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