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Video Editing Worksheet: Video Length

Animation and design lesson 21: Video length sums · Set 305 · 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 has three clips of 29, 10 and 53 seconds. How long is the video (in seconds)?
  2. 2.⏱️ Your video must be 180 seconds long. Your clips add up to 164 seconds. How many more seconds of video do you need?
  3. 3.⏱️ An 81-second clip is sped up to 3× speed. How long does it last now (in seconds)?
  4. 4.⏱️ How many seconds is 2 minutes 3 seconds?
  5. 5.⏱️ How many seconds is 6 minutes 53 seconds?
  6. 6.⏱️ Your video must be 90 seconds long. Your clips add up to 19 seconds. How many more seconds of video do you need?
  7. 7.⏱️ How many seconds is 6 minutes 6 seconds?
  8. 8.⏱️ A video has three clips of 8, 56 and 59 seconds. How long is the video (in seconds)?
  9. 9.⏱️ How many seconds is 7 minutes 41 seconds?
  10. 10.⏱️ 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
  11. 11.⏱️ Your video must be 90 seconds long. Your clips add up to 60 seconds. How many more seconds of video do you need?
  12. 12.⏱️ How many seconds is 5 minutes 34 seconds?
  13. 13.⏱️ A 54-second clip is sped up to 3× speed. How long does it last now (in seconds)?
  14. 14.⏱️ A 140-second clip is sped up to 4× speed. How long does it last now (in seconds)?
  15. 15.⏱️ A video has three clips of 19, 6 and 15 seconds. How long is the video (in seconds)?
  16. 16.⏱️ How many seconds are in 1 minute? (a) 100 (b) 10 (c) 60 (d) 30
  17. 17.⏱️ A video has three clips of 21, 7 and 24 seconds. How long is the video (in seconds)?
  18. 18.⏱️ A 116-second clip is sped up to 4× speed. How long does it last now (in seconds)?
  19. 19.⏱️ Your video must be 90 seconds long. Your clips add up to 73 seconds. How many more seconds of video do you need?
  20. 20.⏱️ Speeding a clip up to 2× makes it … (a) silent (b) half as long (c) the same length (d) twice as long
  21. 21.⏱️ A 66-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  22. 22.⏱️ A 20-second clip is sped up to 4× speed. How long does it last now (in seconds)?
  23. 23.⏱️ A video is 180 seconds long. How long is that in minutes and seconds? (a) 4 min 0 s (b) 3 min 0 s (c) 1 min 80 s (d) 3 min 30 s
  24. 24.⏱️ How many seconds is 2 minutes 56 seconds?
  25. 25.⏱️ A video is 70 seconds long. How long is that in minutes and seconds? (a) 1 min 40 s (b) 2 min 10 s (c) 3 min 10 s (d) 1 min 10 s
  26. 26.⏱️ A video has three clips of 43, 12 and 22 seconds. How long is the video (in seconds)?
  27. 27.⏱️ A video is 380 seconds long. How long is that in minutes and seconds? (a) 3 min 80 s (b) 6 min 20 s (c) 6 min 50 s (d) 7 min 20 s
  28. 28.⏱️ Your video must be 60 seconds long. Your clips add up to 25 seconds. How many more seconds of video do you need?
  29. 29.⏱️ A 9-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  30. 30.⏱️ A video has three clips of 33, 28 and 52 seconds. How long is the video (in seconds)?
  31. 31.⏱️ A video has three clips of 5, 41 and 52 seconds. How long is the video (in seconds)?
  32. 32.⏱️ How many seconds is 1 minute 28 seconds?
  33. 33.⏱️ A video is 500 seconds long. How long is that in minutes and seconds? (a) 8 min 50 s (b) 5 min 0 s (c) 9 min 20 s (d) 8 min 20 s
  34. 34.⏱️ How many seconds is 5 minutes 10 seconds?
  35. 35.⏱️ A video has three clips of 29, 19 and 30 seconds. How long is the video (in seconds)?
  36. 36.⏱️ A video is 185 seconds long. How long is that in minutes and seconds? (a) 4 min 5 s (b) 3 min 5 s (c) 3 min 35 s (d) 1 min 85 s
  37. 37.⏱️ A video is 455 seconds long. How long is that in minutes and seconds? (a) 7 min 5 s (b) 4 min 55 s (c) 8 min 35 s (d) 7 min 35 s
  38. 38.⏱️ A video has three clips of 56, 21 and 34 seconds. How long is the video (in seconds)?
  39. 39.⏱️ How many seconds is 7 minutes 33 seconds?
  40. 40.⏱️ How many seconds is 9 minutes 13 seconds?

Answer key

  1. 92
  2. 16
  3. 27
  4. 123
  5. 413
  6. 71
  7. 366
  8. 123
  9. 461
  10. the sum of the clips
  11. 30
  12. 334
  13. 18
  14. 35
  15. 40
  16. 60
  17. 52
  18. 29
  19. 17
  20. half as long
  21. 33
  22. 5
  23. 3 min 0 s
  24. 176
  25. 1 min 10 s
  26. 77
  27. 6 min 20 s
  28. 35
  29. 18
  30. 113
  31. 98
  32. 88
  33. 8 min 20 s
  34. 310
  35. 78
  36. 3 min 5 s
  37. 7 min 35 s
  38. 111
  39. 453
  40. 553

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