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Video Editing Worksheet: Video Length

Animation and design lesson 21: Video length sums · Set 52 · 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 1 minute 50 seconds?
  2. 2.⏱️ How many seconds is 9 minutes 58 seconds?
  3. 3.⏱️ A video has three clips of 38, 38 and 40 seconds. How long is the video (in seconds)?
  4. 4.⏱️ A video has three clips of 17, 24 and 20 seconds. How long is the video (in seconds)?
  5. 5.⏱️ How many seconds is 4 minutes 58 seconds?
  6. 6.⏱️ A 60-second clip is sped up to 3× speed. How long does it last now (in seconds)?
  7. 7.⏱️ A video has three clips of 60, 52 and 15 seconds. How long is the video (in seconds)?
  8. 8.⏱️ Your video must be 120 seconds long. Your clips add up to 77 seconds. How many more seconds of video do you need?
  9. 9.⏱️ How many seconds are in 1 minute? (a) 30 (b) 10 (c) 100 (d) 60
  10. 10.⏱️ A video has three clips of 7, 20 and 38 seconds. How long is the video (in seconds)?
  11. 11.⏱️ A 13-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  12. 12.⏱️ Your video must be 90 seconds long. Your clips add up to 40 seconds. How many more seconds of video do you need?
  13. 13.⏱️ A video is 590 seconds long. How long is that in minutes and seconds? (a) 10 min 50 s (b) 9 min 50 s (c) 9 min 20 s (d) 5 min 90 s
  14. 14.⏱️ A video has three clips of 23, 27 and 24 seconds. How long is the video (in seconds)?
  15. 15.⏱️ A 10-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  16. 16.⏱️ How many seconds is 3 minutes 58 seconds?
  17. 17.⏱️ When you put clips one after another, the video length is … (a) the sum of the clips (b) the longest clip (c) always 1 minute (d) the shortest clip
  18. 18.⏱️ A video has three clips of 35, 45 and 21 seconds. How long is the video (in seconds)?
  19. 19.⏱️ Speeding a clip up to 2× makes it … (a) twice as long (b) silent (c) half as long (d) the same length
  20. 20.⏱️ A video has three clips of 13, 31 and 7 seconds. How long is the video (in seconds)?
  21. 21.⏱️ A 25-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  22. 22.⏱️ A 108-second clip is sped up to 4× speed. How long does it last now (in seconds)?
  23. 23.⏱️ An 11-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  24. 24.⏱️ A video has three clips of 32, 19 and 32 seconds. How long is the video (in seconds)?
  25. 25.⏱️ A video is 460 seconds long. How long is that in minutes and seconds? (a) 8 min 40 s (b) 7 min 40 s (c) 7 min 10 s (d) 4 min 60 s
  26. 26.⏱️ How many seconds is 3 minutes 15 seconds?
  27. 27.⏱️ Your video must be 120 seconds long. Your clips add up to 40 seconds. How many more seconds of video do you need?
  28. 28.⏱️ A video has three clips of 50, 7 and 31 seconds. How long is the video (in seconds)?
  29. 29.⏱️ How many seconds is 2 minutes 11 seconds?
  30. 30.⏱️ A video has three clips of 33, 37 and 11 seconds. How long is the video (in seconds)?
  31. 31.⏱️ How many seconds is 1 minute 35 seconds?
  32. 32.⏱️ How many seconds is 9 minutes 7 seconds?
  33. 33.⏱️ A 32-second clip is sped up to 4× speed. How long does it last now (in seconds)?
  34. 34.⏱️ A 36-second clip is sped up to 4× speed. How long does it last now (in seconds)?
  35. 35.⏱️ How many seconds is 9 minutes 55 seconds?
  36. 36.⏱️ Your video must be 180 seconds long. Your clips add up to 9 seconds. How many more seconds of video do you need?
  37. 37.⏱️ A video is 145 seconds long. How long is that in minutes and seconds? (a) 2 min 55 s (b) 2 min 25 s (c) 1 min 45 s (d) 3 min 25 s
  38. 38.⏱️ A video is 305 seconds long. How long is that in minutes and seconds? (a) 5 min 35 s (b) 3 min 5 s (c) 6 min 5 s (d) 5 min 5 s
  39. 39.⏱️ A 27-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  40. 40.⏱️ How many seconds is 6 minutes 17 seconds?

Answer key

  1. 110
  2. 598
  3. 116
  4. 61
  5. 298
  6. 20
  7. 127
  8. 43
  9. 60
  10. 65
  11. 26
  12. 50
  13. 9 min 50 s
  14. 74
  15. 20
  16. 238
  17. the sum of the clips
  18. 101
  19. half as long
  20. 51
  21. 50
  22. 27
  23. 22
  24. 83
  25. 7 min 40 s
  26. 195
  27. 80
  28. 88
  29. 131
  30. 81
  31. 95
  32. 547
  33. 8
  34. 9
  35. 595
  36. 171
  37. 2 min 25 s
  38. 5 min 5 s
  39. 54
  40. 377

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