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Video Editing Worksheet: Video Length

Animation and design lesson 21: Video length sums · Set 90 · 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.⏱️ How many seconds is 5 minutes 24 seconds?
  2. 2.⏱️ A video is 165 seconds long. How long is that in minutes and seconds? (a) 2 min 15 s (b) 1 min 65 s (c) 2 min 45 s (d) 3 min 45 s
  3. 3.⏱️ Speeding a clip up to 2× makes it … (a) half as long (b) the same length (c) silent (d) twice as long
  4. 4.⏱️ A video is 480 seconds long. How long is that in minutes and seconds? (a) 8 min 30 s (b) 8 min 0 s (c) 9 min 0 s (d) 4 min 80 s
  5. 5.⏱️ An 18-second clip is sped up to 3× speed. How long does it last now (in seconds)?
  6. 6.⏱️ Your video must be 120 seconds long. Your clips add up to 10 seconds. How many more seconds of video do you need?
  7. 7.⏱️ How many seconds is 9 minutes 14 seconds?
  8. 8.⏱️ A video has three clips of 52, 57 and 60 seconds. How long is the video (in seconds)?
  9. 9.⏱️ How many seconds are in 1 minute? (a) 100 (b) 30 (c) 10 (d) 60
  10. 10.⏱️ A video has three clips of 9, 51 and 29 seconds. How long is the video (in seconds)?
  11. 11.⏱️ Your video must be 180 seconds long. Your clips add up to 96 seconds. How many more seconds of video do you need?
  12. 12.⏱️ A video has three clips of 23, 46 and 11 seconds. How long is the video (in seconds)?
  13. 13.⏱️ How many seconds is 5 minutes 19 seconds?
  14. 14.⏱️ A 26-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  15. 15.⏱️ A 132-second clip is sped up to 4× speed. How long does it last now (in seconds)?
  16. 16.⏱️ Your video must be 120 seconds long. Your clips add up to 88 seconds. How many more seconds of video do you need?
  17. 17.⏱️ How many seconds is 4 minutes 18 seconds?
  18. 18.⏱️ 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
  19. 19.⏱️ Your video must be 120 seconds long. Your clips add up to 84 seconds. How many more seconds of video do you need?
  20. 20.⏱️ Your video must be 180 seconds long. Your clips add up to 18 seconds. How many more seconds of video do you need?
  21. 21.⏱️ A video has three clips of 59, 25 and 45 seconds. How long is the video (in seconds)?
  22. 22.⏱️ Your video must be 90 seconds long. Your clips add up to 22 seconds. How many more seconds of video do you need?
  23. 23.⏱️ How many seconds is 6 minutes 27 seconds?
  24. 24.⏱️ A 64-second clip is sped up to 4× speed. How long does it last now (in seconds)?
  25. 25.⏱️ A video has three clips of 22, 45 and 13 seconds. How long is the video (in seconds)?
  26. 26.⏱️ How many seconds is 8 minutes 59 seconds?
  27. 27.⏱️ How many seconds is 3 minutes 45 seconds?
  28. 28.⏱️ Your video must be 180 seconds long. Your clips add up to 14 seconds. How many more seconds of video do you need?
  29. 29.⏱️ A video has three clips of 16, 38 and 59 seconds. How long is the video (in seconds)?
  30. 30.⏱️ How many seconds is 6 minutes 20 seconds?
  31. 31.⏱️ A video has three clips of 40, 6 and 7 seconds. How long is the video (in seconds)?
  32. 32.⏱️ A 28-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  33. 33.⏱️ A video has three clips of 35, 51 and 17 seconds. How long is the video (in seconds)?
  34. 34.⏱️ A 23-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  35. 35.⏱️ A 66-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  36. 36.⏱️ A video has three clips of 7, 11 and 48 seconds. How long is the video (in seconds)?
  37. 37.⏱️ How many seconds is 2 minutes 19 seconds?
  38. 38.⏱️ A 48-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  39. 39.⏱️ A video has three clips of 39, 6 and 42 seconds. How long is the video (in seconds)?
  40. 40.⏱️ A video is 375 seconds long. How long is that in minutes and seconds? (a) 6 min 45 s (b) 7 min 15 s (c) 6 min 15 s (d) 3 min 75 s

Answer key

  1. 324
  2. 2 min 45 s
  3. half as long
  4. 8 min 0 s
  5. 6
  6. 110
  7. 554
  8. 169
  9. 60
  10. 89
  11. 84
  12. 80
  13. 319
  14. 13
  15. 33
  16. 32
  17. 258
  18. the sum of the clips
  19. 36
  20. 162
  21. 129
  22. 68
  23. 387
  24. 16
  25. 80
  26. 539
  27. 225
  28. 166
  29. 113
  30. 380
  31. 53
  32. 56
  33. 103
  34. 46
  35. 33
  36. 66
  37. 139
  38. 24
  39. 87
  40. 6 min 15 s

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