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Video Editing Worksheet: Video Length

Animation and design lesson 21: Video length sums · Set 117 · 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 30, 58 and 57 seconds. How long is the video (in seconds)?
  2. 2.⏱️ Speeding a clip up to 2× makes it … (a) half as long (b) twice as long (c) silent (d) the same length
  3. 3.⏱️ How many seconds are in 1 minute? (a) 30 (b) 100 (c) 60 (d) 10
  4. 4.⏱️ A 12-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  5. 5.⏱️ A 56-second clip is sped up to 4× speed. How long does it last now (in seconds)?
  6. 6.⏱️ How many seconds is 9 minutes 18 seconds?
  7. 7.⏱️ Your video must be 60 seconds long. Your clips add up to 21 seconds. How many more seconds of video do you need?
  8. 8.⏱️ How many seconds is 1 minute 26 seconds?
  9. 9.⏱️ A 44-second clip is sped up to 4× speed. 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) always 1 minute (c) the shortest clip (d) the sum of the clips
  11. 11.⏱️ A 29-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  12. 12.⏱️ Your video must be 60 seconds long. Your clips add up to 11 seconds. How many more seconds of video do you need?
  13. 13.⏱️ A 19-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  14. 14.⏱️ A video has three clips of 36, 33 and 55 seconds. How long is the video (in seconds)?
  15. 15.⏱️ Your video must be 60 seconds long. Your clips add up to 40 seconds. How many more seconds of video do you need?
  16. 16.⏱️ A 46-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  17. 17.⏱️ How many seconds is 4 minutes 53 seconds?
  18. 18.⏱️ Your video must be 90 seconds long. Your clips add up to 30 seconds. How many more seconds of video do you need?
  19. 19.⏱️ Your video must be 180 seconds long. Your clips add up to 98 seconds. How many more seconds of video do you need?
  20. 20.⏱️ A video is 305 seconds long. How long is that in minutes and seconds? (a) 6 min 5 s (b) 5 min 35 s (c) 3 min 5 s (d) 5 min 5 s
  21. 21.⏱️ A 15-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  22. 22.⏱️ How many seconds is 1 minute 59 seconds?
  23. 23.⏱️ A 16-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 38, 24 and 47 seconds. How long is the video (in seconds)?
  25. 25.⏱️ 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
  26. 26.⏱️ Your video must be 60 seconds long. Your clips add up to 48 seconds. How many more seconds of video do you need?
  27. 27.⏱️ How many seconds is 2 minutes 32 seconds?
  28. 28.⏱️ A video is 140 seconds long. How long is that in minutes and seconds? (a) 2 min 50 s (b) 2 min 20 s (c) 1 min 40 s (d) 3 min 20 s
  29. 29.⏱️ A 13-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  30. 30.⏱️ Your video must be 180 seconds long. Your clips add up to 81 seconds. How many more seconds of video do you need?
  31. 31.⏱️ A video has three clips of 18, 59 and 58 seconds. How long is the video (in seconds)?
  32. 32.⏱️ A 21-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  33. 33.⏱️ How many seconds is 8 minutes 8 seconds?
  34. 34.⏱️ A video has three clips of 6, 36 and 12 seconds. How long is the video (in seconds)?
  35. 35.⏱️ Your video must be 90 seconds long. Your clips add up to 18 seconds. How many more seconds of video do you need?
  36. 36.⏱️ A 20-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  37. 37.⏱️ A video is 345 seconds long. How long is that in minutes and seconds? (a) 5 min 45 s (b) 6 min 45 s (c) 5 min 15 s (d) 3 min 45 s
  38. 38.⏱️ A 140-second clip is sped up to 4× speed. How long does it last now (in seconds)?
  39. 39.⏱️ Your video must be 90 seconds long. Your clips add up to 43 seconds. How many more seconds of video do you need?
  40. 40.⏱️ A 45-second clip is sped up to 3× speed. How long does it last now (in seconds)?

Answer key

  1. 145
  2. half as long
  3. 60
  4. 24
  5. 14
  6. 558
  7. 39
  8. 86
  9. 11
  10. the sum of the clips
  11. 58
  12. 49
  13. 38
  14. 124
  15. 20
  16. 23
  17. 293
  18. 60
  19. 82
  20. 5 min 5 s
  21. 30
  22. 119
  23. 32
  24. 109
  25. 2 min 25 s
  26. 12
  27. 152
  28. 2 min 20 s
  29. 26
  30. 99
  31. 135
  32. 42
  33. 488
  34. 54
  35. 72
  36. 40
  37. 5 min 45 s
  38. 35
  39. 47
  40. 15

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