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Video Editing Worksheet: Video Length

Animation and design lesson 21: Video length sums · Set 102 · 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 33, 57 and 37 seconds. How long is the video (in seconds)?
  2. 2.⏱️ When you put clips one after another, the video length is … (a) the shortest clip (b) the longest clip (c) always 1 minute (d) the sum of the clips
  3. 3.⏱️ How many seconds is 2 minutes 59 seconds?
  4. 4.⏱️ How many seconds are in 1 minute? (a) 30 (b) 100 (c) 60 (d) 10
  5. 5.⏱️ A video is 230 seconds long. How long is that in minutes and seconds? (a) 3 min 20 s (b) 2 min 30 s (c) 4 min 50 s (d) 3 min 50 s
  6. 6.⏱️ How many seconds is 1 minute 13 seconds?
  7. 7.⏱️ A 9-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  8. 8.⏱️ Your video must be 180 seconds long. Your clips add up to 44 seconds. How many more seconds of video do you need?
  9. 9.⏱️ A 25-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) 1 min 5 s (c) 1 min 35 s (d) 3 min 35 s
  11. 11.⏱️ A video has three clips of 16, 23 and 40 seconds. How long is the video (in seconds)?
  12. 12.⏱️ A 21-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  13. 13.⏱️ Speeding a clip up to 2× makes it … (a) twice as long (b) half as long (c) silent (d) the same length
  14. 14.⏱️ A video has three clips of 23, 29 and 38 seconds. How long is the video (in seconds)?
  15. 15.⏱️ A video has three clips of 7, 33 and 24 seconds. How long is the video (in seconds)?
  16. 16.⏱️ How many seconds is 8 minutes 28 seconds?
  17. 17.⏱️ Your video must be 180 seconds long. Your clips add up to 24 seconds. How many more seconds of video do you need?
  18. 18.⏱️ Your video must be 60 seconds long. Your clips add up to 9 seconds. How many more seconds of video do you need?
  19. 19.⏱️ Your video must be 60 seconds long. Your clips add up to 49 seconds. How many more seconds of video do you need?
  20. 20.⏱️ A video has three clips of 30, 36 and 18 seconds. How long is the video (in seconds)?
  21. 21.⏱️ A video is 300 seconds long. How long is that in minutes and seconds? (a) 5 min 30 s (b) 5 min 0 s (c) 3 min 0 s (d) 6 min 0 s
  22. 22.⏱️ How many seconds is 8 minutes 12 seconds?
  23. 23.⏱️ A 13-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  24. 24.⏱️ A 23-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  25. 25.⏱️ A video has three clips of 51, 11 and 30 seconds. How long is the video (in seconds)?
  26. 26.⏱️ An 11-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  27. 27.⏱️ Your video must be 120 seconds long. Your clips add up to 36 seconds. How many more seconds of video do you need?
  28. 28.⏱️ Your video must be 120 seconds long. Your clips add up to 14 seconds. How many more seconds of video do you need?
  29. 29.⏱️ Your video must be 120 seconds long. Your clips add up to 23 seconds. How many more seconds of video do you need?
  30. 30.⏱️ A 74-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  31. 31.⏱️ A video has three clips of 16, 45 and 14 seconds. How long is the video (in seconds)?
  32. 32.⏱️ How many seconds is 8 minutes 30 seconds?
  33. 33.⏱️ An 88-second clip is sped up to 4× speed. How long does it last now (in seconds)?
  34. 34.⏱️ Your video must be 120 seconds long. Your clips add up to 27 seconds. How many more seconds of video do you need?
  35. 35.⏱️ A 16-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  36. 36.⏱️ A video has three clips of 16, 45 and 54 seconds. How long is the video (in seconds)?
  37. 37.⏱️ How many seconds is 6 minutes 29 seconds?
  38. 38.⏱️ A video is 565 seconds long. How long is that in minutes and seconds? (a) 9 min 25 s (b) 9 min 55 s (c) 5 min 65 s (d) 10 min 25 s
  39. 39.⏱️ A video has three clips of 12, 14 and 39 seconds. How long is the video (in seconds)?
  40. 40.⏱️ How many seconds is 4 minutes 7 seconds?

Answer key

  1. 127
  2. the sum of the clips
  3. 179
  4. 60
  5. 3 min 50 s
  6. 73
  7. 18
  8. 136
  9. 50
  10. 1 min 35 s
  11. 79
  12. 42
  13. half as long
  14. 90
  15. 64
  16. 508
  17. 156
  18. 51
  19. 11
  20. 84
  21. 5 min 0 s
  22. 492
  23. 26
  24. 46
  25. 92
  26. 22
  27. 84
  28. 106
  29. 97
  30. 37
  31. 75
  32. 510
  33. 22
  34. 93
  35. 32
  36. 115
  37. 389
  38. 9 min 25 s
  39. 65
  40. 247

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