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Video Editing Worksheet: Video Length

Animation and design lesson 21: Video length sums · Set 224 · 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 is 575 seconds long. How long is that in minutes and seconds? (a) 10 min 35 s (b) 9 min 5 s (c) 9 min 35 s (d) 5 min 75 s
  2. 2.⏱️ How many seconds is 5 minutes 10 seconds?
  3. 3.⏱️ A 22-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  4. 4.⏱️ How many seconds are in 1 minute? (a) 30 (b) 100 (c) 60 (d) 10
  5. 5.⏱️ A 70-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  6. 6.⏱️ Your video must be 120 seconds long. Your clips add up to 100 seconds. How many more seconds of video do you need?
  7. 7.⏱️ How many seconds is 8 minutes 7 seconds?
  8. 8.⏱️ A video is 385 seconds long. How long is that in minutes and seconds? (a) 3 min 85 s (b) 6 min 55 s (c) 6 min 25 s (d) 7 min 25 s
  9. 9.⏱️ A 27-second clip is sped up to 3× speed. How long does it last now (in seconds)?
  10. 10.⏱️ A 4-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  11. 11.⏱️ A 42-second clip is sped up to 3× speed. How long does it last now (in seconds)?
  12. 12.⏱️ A 10-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  13. 13.⏱️ Your video must be 60 seconds long. Your clips add up to 40 seconds. How many more seconds of video do you need?
  14. 14.⏱️ A video has three clips of 22, 18 and 60 seconds. How long is the video (in seconds)?
  15. 15.⏱️ A video is 230 seconds long. How long is that in minutes and seconds? (a) 2 min 30 s (b) 4 min 50 s (c) 3 min 20 s (d) 3 min 50 s
  16. 16.⏱️ A video is 210 seconds long. How long is that in minutes and seconds? (a) 3 min 30 s (b) 3 min 0 s (c) 2 min 10 s (d) 4 min 30 s
  17. 17.⏱️ A video is 390 seconds long. How long is that in minutes and seconds? (a) 7 min 30 s (b) 6 min 30 s (c) 6 min 0 s (d) 3 min 90 s
  18. 18.⏱️ When you put clips one after another, the video length is … (a) the sum of the clips (b) the shortest clip (c) always 1 minute (d) the longest clip
  19. 19.⏱️ Speeding a clip up to 2× makes it … (a) silent (b) twice as long (c) half as long (d) the same length
  20. 20.⏱️ How many seconds is 6 minutes 5 seconds?
  21. 21.⏱️ A video has three clips of 18, 39 and 36 seconds. How long is the video (in seconds)?
  22. 22.⏱️ How many seconds is 8 minutes 28 seconds?
  23. 23.⏱️ How many seconds is 1 minute 23 seconds?
  24. 24.⏱️ How many seconds is 2 minutes 17 seconds?
  25. 25.⏱️ A video is 530 seconds long. How long is that in minutes and seconds? (a) 5 min 30 s (b) 9 min 50 s (c) 8 min 20 s (d) 8 min 50 s
  26. 26.⏱️ A 19-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  27. 27.⏱️ Your video must be 180 seconds long. Your clips add up to 116 seconds. How many more seconds of video do you need?
  28. 28.⏱️ A 24-second clip is sped up to 4× speed. How long does it last now (in seconds)?
  29. 29.⏱️ A 120-second clip is sped up to 4× speed. How long does it last now (in seconds)?
  30. 30.⏱️ A video has three clips of 58, 49 and 38 seconds. How long is the video (in seconds)?
  31. 31.⏱️ Your video must be 120 seconds long. Your clips add up to 78 seconds. How many more seconds of video do you need?
  32. 32.⏱️ How many seconds is 8 minutes 55 seconds?
  33. 33.⏱️ A video has three clips of 18, 39 and 54 seconds. How long is the video (in seconds)?
  34. 34.⏱️ An 8-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  35. 35.⏱️ How many seconds is 5 minutes 46 seconds?
  36. 36.⏱️ A video has three clips of 51, 53 and 51 seconds. How long is the video (in seconds)?
  37. 37.⏱️ A 5-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  38. 38.⏱️ A video has three clips of 27, 21 and 5 seconds. How long is the video (in seconds)?
  39. 39.⏱️ Your video must be 180 seconds long. Your clips add up to 87 seconds. How many more seconds of video do you need?
  40. 40.⏱️ How many seconds is 1 minute 54 seconds?

Answer key

  1. 9 min 35 s
  2. 310
  3. 11
  4. 60
  5. 35
  6. 20
  7. 487
  8. 6 min 25 s
  9. 9
  10. 8
  11. 14
  12. 5
  13. 20
  14. 100
  15. 3 min 50 s
  16. 3 min 30 s
  17. 6 min 30 s
  18. the sum of the clips
  19. half as long
  20. 365
  21. 93
  22. 508
  23. 83
  24. 137
  25. 8 min 50 s
  26. 38
  27. 64
  28. 6
  29. 30
  30. 145
  31. 42
  32. 535
  33. 111
  34. 16
  35. 346
  36. 155
  37. 10
  38. 53
  39. 93
  40. 114

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