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Video Editing Worksheet: Video Length

Animation and design lesson 21: Video length sums · Set 266 · 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.⏱️ Your video must be 120 seconds long. Your clips add up to 95 seconds. How many more seconds of video do you need?
  2. 2.⏱️ A 29-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  3. 3.⏱️ Your video must be 60 seconds long. Your clips add up to 25 seconds. How many more seconds of video do you need?
  4. 4.⏱️ Your video must be 60 seconds long. Your clips add up to 27 seconds. How many more seconds of video do you need?
  5. 5.⏱️ A video is 465 seconds long. How long is that in minutes and seconds? (a) 4 min 65 s (b) 8 min 45 s (c) 7 min 45 s (d) 7 min 15 s
  6. 6.⏱️ How many seconds is 2 minutes 11 seconds?
  7. 7.⏱️ How many seconds is 7 minutes 26 seconds?
  8. 8.⏱️ A 51-second clip is sped up to 3× speed. How long does it last now (in seconds)?
  9. 9.⏱️ A 21-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  10. 10.⏱️ A video is 95 seconds long. How long is that in minutes and seconds? (a) 2 min 35 s (b) 3 min 35 s (c) 1 min 5 s (d) 1 min 35 s
  11. 11.⏱️ How many seconds is 3 minutes 33 seconds?
  12. 12.⏱️ A video has three clips of 57, 5 and 54 seconds. How long is the video (in seconds)?
  13. 13.⏱️ How many seconds are in 1 minute? (a) 10 (b) 30 (c) 60 (d) 100
  14. 14.⏱️ When you put clips one after another, the video length is … (a) always 1 minute (b) the shortest clip (c) the sum of the clips (d) the longest clip
  15. 15.⏱️ A 10-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  16. 16.⏱️ An 84-second clip is sped up to 4× speed. How long does it last now (in seconds)?
  17. 17.⏱️ A 38-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  18. 18.⏱️ A 24-second clip is sped up to 4× speed. How long does it last now (in seconds)?
  19. 19.⏱️ A video has three clips of 26, 28 and 50 seconds. How long is the video (in seconds)?
  20. 20.⏱️ A video is 135 seconds long. How long is that in minutes and seconds? (a) 2 min 45 s (b) 3 min 15 s (c) 2 min 15 s (d) 1 min 35 s
  21. 21.⏱️ How many seconds is 1 minute 24 seconds?
  22. 22.⏱️ How many seconds is 3 minutes 38 seconds?
  23. 23.⏱️ How many seconds is 2 minutes 29 seconds?
  24. 24.⏱️ How many seconds is 5 minutes 17 seconds?
  25. 25.⏱️ A video is 580 seconds long. How long is that in minutes and seconds? (a) 10 min 40 s (b) 9 min 10 s (c) 5 min 80 s (d) 9 min 40 s
  26. 26.⏱️ Your video must be 120 seconds long. Your clips add up to 20 seconds. How many more seconds of video do you need?
  27. 27.⏱️ Your video must be 60 seconds long. Your clips add up to 28 seconds. How many more seconds of video do you need?
  28. 28.⏱️ How many seconds is 5 minutes 19 seconds?
  29. 29.⏱️ A 50-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  30. 30.⏱️ A 42-second clip is sped up to 3× speed. How long does it last now (in seconds)?
  31. 31.⏱️ A 27-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  32. 32.⏱️ How many seconds is 5 minutes 52 seconds?
  33. 33.⏱️ A 10-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  34. 34.⏱️ A 124-second clip is sped up to 4× speed. How long does it last now (in seconds)?
  35. 35.⏱️ Speeding a clip up to 2× makes it … (a) twice as long (b) the same length (c) silent (d) half as long
  36. 36.⏱️ A video has three clips of 18, 38 and 13 seconds. How long is the video (in seconds)?
  37. 37.⏱️ A video is 180 seconds long. How long is that in minutes and seconds? (a) 3 min 30 s (b) 4 min 0 s (c) 3 min 0 s (d) 1 min 80 s
  38. 38.⏱️ A 9-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  39. 39.⏱️ How many seconds is 9 minutes 57 seconds?
  40. 40.⏱️ A video is 120 seconds long. How long is that in minutes and seconds? (a) 1 min 20 s (b) 2 min 30 s (c) 2 min 0 s (d) 3 min 0 s

Answer key

  1. 25
  2. 58
  3. 35
  4. 33
  5. 7 min 45 s
  6. 131
  7. 446
  8. 17
  9. 42
  10. 1 min 35 s
  11. 213
  12. 116
  13. 60
  14. the sum of the clips
  15. 20
  16. 21
  17. 19
  18. 6
  19. 104
  20. 2 min 15 s
  21. 84
  22. 218
  23. 149
  24. 317
  25. 9 min 40 s
  26. 100
  27. 32
  28. 319
  29. 25
  30. 14
  31. 54
  32. 352
  33. 5
  34. 31
  35. half as long
  36. 69
  37. 3 min 0 s
  38. 18
  39. 597
  40. 2 min 0 s

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