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Video Editing Worksheet: Video Length

Animation and design lesson 21: Video length sums · Set 57 · 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 55, 48 and 14 seconds. How long is the video (in seconds)?
  2. 2.⏱️ How many seconds is 8 minutes 58 seconds?
  3. 3.⏱️ A video has three clips of 7, 18 and 59 seconds. How long is the video (in seconds)?
  4. 4.⏱️ Your video must be 60 seconds long. Your clips add up to 5 seconds. How many more seconds of video do you need?
  5. 5.⏱️ A 22-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  6. 6.⏱️ A 57-second clip is sped up to 3× speed. How long does it last now (in seconds)?
  7. 7.⏱️ A 5-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  8. 8.⏱️ How many seconds is 7 minutes 48 seconds?
  9. 9.⏱️ An 18-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  10. 10.⏱️ When you put clips one after another, the video length is … (a) the longest clip (b) the sum of the clips (c) the shortest clip (d) always 1 minute
  11. 11.⏱️ A video has three clips of 5, 16 and 16 seconds. How long is the video (in seconds)?
  12. 12.⏱️ A video has three clips of 12, 38 and 34 seconds. How long is the video (in seconds)?
  13. 13.⏱️ How many seconds is 3 minutes 35 seconds?
  14. 14.⏱️ A 6-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  15. 15.⏱️ How many seconds is 1 minute 22 seconds?
  16. 16.⏱️ A 60-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  17. 17.⏱️ How many seconds are in 1 minute? (a) 30 (b) 10 (c) 60 (d) 100
  18. 18.⏱️ A video has three clips of 40, 11 and 35 seconds. How long is the video (in seconds)?
  19. 19.⏱️ A 27-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  20. 20.⏱️ A 70-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  21. 21.⏱️ A 29-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  22. 22.⏱️ A 60-second clip is sped up to 3× speed. How long does it last now (in seconds)?
  23. 23.⏱️ A 24-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  24. 24.⏱️ A 68-second clip is sped up to 4× speed. How long does it last now (in seconds)?
  25. 25.⏱️ How many seconds is 1 minute 35 seconds?
  26. 26.⏱️ A video has three clips of 54, 33 and 47 seconds. How long is the video (in seconds)?
  27. 27.⏱️ How many seconds is 2 minutes 16 seconds?
  28. 28.⏱️ A video has three clips of 37, 17 and 13 seconds. How long is the video (in seconds)?
  29. 29.⏱️ A 13-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  30. 30.⏱️ A video is 155 seconds long. How long is that in minutes and seconds? (a) 2 min 35 s (b) 2 min 5 s (c) 3 min 35 s (d) 1 min 55 s
  31. 31.⏱️ How many seconds is 1 minute 23 seconds?
  32. 32.⏱️ How many seconds is 9 minutes 28 seconds?
  33. 33.⏱️ An 8-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  34. 34.⏱️ A video has three clips of 50, 51 and 38 seconds. How long is the video (in seconds)?
  35. 35.⏱️ Your video must be 60 seconds long. Your clips add up to 52 seconds. How many more seconds of video do you need?
  36. 36.⏱️ Your video must be 180 seconds long. Your clips add up to 105 seconds. How many more seconds of video do you need?
  37. 37.⏱️ Your video must be 60 seconds long. Your clips add up to 12 seconds. How many more seconds of video do you need?
  38. 38.⏱️ How many seconds is 7 minutes 49 seconds?
  39. 39.⏱️ A 26-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  40. 40.⏱️ Speeding a clip up to 2× makes it … (a) twice as long (b) half as long (c) silent (d) the same length

Answer key

  1. 117
  2. 538
  3. 84
  4. 55
  5. 11
  6. 19
  7. 10
  8. 468
  9. 36
  10. the sum of the clips
  11. 37
  12. 84
  13. 215
  14. 12
  15. 82
  16. 30
  17. 60
  18. 86
  19. 54
  20. 35
  21. 58
  22. 20
  23. 12
  24. 17
  25. 95
  26. 134
  27. 136
  28. 67
  29. 26
  30. 2 min 35 s
  31. 83
  32. 568
  33. 16
  34. 139
  35. 8
  36. 75
  37. 48
  38. 469
  39. 52
  40. half as long

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