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Video Editing Worksheet: Video Length

Animation and design lesson 21: Video length sums · Set 135 · 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 180 seconds long. Your clips add up to 97 seconds. How many more seconds of video do you need?
  2. 2.⏱️ A video is 370 seconds long. How long is that in minutes and seconds? (a) 6 min 40 s (b) 7 min 10 s (c) 6 min 10 s (d) 3 min 70 s
  3. 3.⏱️ A video has three clips of 49, 41 and 15 seconds. How long is the video (in seconds)?
  4. 4.⏱️ Your video must be 90 seconds long. Your clips add up to 11 seconds. How many more seconds of video do you need?
  5. 5.⏱️ How many seconds is 1 minute 51 seconds?
  6. 6.⏱️ An 18-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  7. 7.⏱️ When you put clips one after another, the video length is … (a) always 1 minute (b) the longest clip (c) the shortest clip (d) the sum of the clips
  8. 8.⏱️ How many seconds is 9 minutes 7 seconds?
  9. 9.⏱️ How many seconds are in 1 minute? (a) 30 (b) 100 (c) 10 (d) 60
  10. 10.⏱️ Your video must be 180 seconds long. Your clips add up to 30 seconds. How many more seconds of video do you need?
  11. 11.⏱️ A video has three clips of 43, 11 and 36 seconds. How long is the video (in seconds)?
  12. 12.⏱️ Speeding a clip up to 2× makes it … (a) twice as long (b) silent (c) half as long (d) the same length
  13. 13.⏱️ A video is 430 seconds long. How long is that in minutes and seconds? (a) 4 min 30 s (b) 8 min 10 s (c) 7 min 40 s (d) 7 min 10 s
  14. 14.⏱️ How many seconds is 3 minutes 8 seconds?
  15. 15.⏱️ A video has three clips of 20, 58 and 52 seconds. How long is the video (in seconds)?
  16. 16.⏱️ A video is 365 seconds long. How long is that in minutes and seconds? (a) 3 min 65 s (b) 6 min 5 s (c) 7 min 5 s (d) 6 min 35 s
  17. 17.⏱️ A video has three clips of 41, 37 and 28 seconds. How long is the video (in seconds)?
  18. 18.⏱️ Your video must be 180 seconds long. Your clips add up to 146 seconds. How many more seconds of video do you need?
  19. 19.⏱️ Your video must be 60 seconds long. Your clips add up to 9 seconds. How many more seconds of video do you need?
  20. 20.⏱️ Your video must be 60 seconds long. Your clips add up to 53 seconds. How many more seconds of video do you need?
  21. 21.⏱️ A 108-second clip is sped up to 4× speed. How long does it last now (in seconds)?
  22. 22.⏱️ A video has three clips of 49, 40 and 14 seconds. How long is the video (in seconds)?
  23. 23.⏱️ An 18-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  24. 24.⏱️ How many seconds is 9 minutes 32 seconds?
  25. 25.⏱️ A 24-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  26. 26.⏱️ A 36-second clip is sped up to 3× speed. How long does it last now (in seconds)?
  27. 27.⏱️ How many seconds is 1 minute 17 seconds?
  28. 28.⏱️ Your video must be 180 seconds long. Your clips add up to 45 seconds. How many more seconds of video do you need?
  29. 29.⏱️ A video is 420 seconds long. How long is that in minutes and seconds? (a) 7 min 0 s (b) 7 min 30 s (c) 8 min 0 s (d) 4 min 20 s
  30. 30.⏱️ A 25-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  31. 31.⏱️ How many seconds is 2 minutes 56 seconds?
  32. 32.⏱️ An 84-second clip is sped up to 4× speed. How long does it last now (in seconds)?
  33. 33.⏱️ A 21-second clip is sped up to 3× speed. How long does it last now (in seconds)?
  34. 34.⏱️ A video is 60 seconds long. How long is that in minutes and seconds? (a) 1 min 30 s (b) 2 min 0 s (c) 3 min 0 s (d) 1 min 0 s
  35. 35.⏱️ A 30-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  36. 36.⏱️ A 12-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  37. 37.⏱️ A video is 510 seconds long. How long is that in minutes and seconds? (a) 8 min 30 s (b) 5 min 10 s (c) 8 min 0 s (d) 9 min 30 s
  38. 38.⏱️ A 62-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  39. 39.⏱️ A video is 535 seconds long. How long is that in minutes and seconds? (a) 5 min 35 s (b) 9 min 55 s (c) 8 min 55 s (d) 8 min 25 s
  40. 40.⏱️ A video is 545 seconds long. How long is that in minutes and seconds? (a) 9 min 35 s (b) 9 min 5 s (c) 10 min 5 s (d) 5 min 45 s

Answer key

  1. 83
  2. 6 min 10 s
  3. 105
  4. 79
  5. 111
  6. 9
  7. the sum of the clips
  8. 547
  9. 60
  10. 150
  11. 90
  12. half as long
  13. 7 min 10 s
  14. 188
  15. 130
  16. 6 min 5 s
  17. 106
  18. 34
  19. 51
  20. 7
  21. 27
  22. 103
  23. 36
  24. 572
  25. 48
  26. 12
  27. 77
  28. 135
  29. 7 min 0 s
  30. 50
  31. 176
  32. 21
  33. 7
  34. 1 min 0 s
  35. 60
  36. 24
  37. 8 min 30 s
  38. 31
  39. 8 min 55 s
  40. 9 min 5 s

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