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Video Editing Worksheet: Video Length

Animation and design lesson 21: Video length sums · Set 179 · 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.⏱️ Speeding a clip up to 2× makes it … (a) twice as long (b) the same length (c) silent (d) half as long
  2. 2.⏱️ An 8-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  3. 3.⏱️ How many seconds are in 1 minute? (a) 10 (b) 30 (c) 100 (d) 60
  4. 4.⏱️ How many seconds is 2 minutes 15 seconds?
  5. 5.⏱️ A video has three clips of 44, 8 and 32 seconds. How long is the video (in seconds)?
  6. 6.⏱️ How many seconds is 5 minutes 28 seconds?
  7. 7.⏱️ A video has three clips of 52, 28 and 12 seconds. How long is the video (in seconds)?
  8. 8.⏱️ A video has three clips of 50, 53 and 46 seconds. How long is the video (in seconds)?
  9. 9.⏱️ Your video must be 180 seconds long. Your clips add up to 56 seconds. How many more seconds of video do you need?
  10. 10.⏱️ A video has three clips of 11, 26 and 7 seconds. How long is the video (in seconds)?
  11. 11.⏱️ How many seconds is 9 minutes 26 seconds?
  12. 12.⏱️ A 20-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  13. 13.⏱️ Your video must be 120 seconds long. Your clips add up to 7 seconds. How many more seconds of video do you need?
  14. 14.⏱️ A 26-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  15. 15.⏱️ How many seconds is 4 minutes 21 seconds?
  16. 16.⏱️ A 23-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  17. 17.⏱️ How many seconds is 4 minutes 51 seconds?
  18. 18.⏱️ When you put clips one after another, the video length is … (a) the shortest clip (b) the longest clip (c) the sum of the clips (d) always 1 minute
  19. 19.⏱️ A 51-second clip is sped up to 3× speed. How long does it last now (in seconds)?
  20. 20.⏱️ A video is 470 seconds long. How long is that in minutes and seconds? (a) 7 min 20 s (b) 8 min 50 s (c) 7 min 50 s (d) 4 min 70 s
  21. 21.⏱️ A 4-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  22. 22.⏱️ A video is 350 seconds long. How long is that in minutes and seconds? (a) 6 min 50 s (b) 3 min 50 s (c) 5 min 20 s (d) 5 min 50 s
  23. 23.⏱️ Your video must be 120 seconds long. Your clips add up to 56 seconds. How many more seconds of video do you need?
  24. 24.⏱️ Your video must be 180 seconds long. Your clips add up to 111 seconds. How many more seconds of video do you need?
  25. 25.⏱️ A 44-second clip is sped up to 4× speed. How long does it last now (in seconds)?
  26. 26.⏱️ A 93-second clip is sped up to 3× speed. How long does it last now (in seconds)?
  27. 27.⏱️ A 48-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  28. 28.⏱️ A video has three clips of 56, 40 and 35 seconds. How long is the video (in seconds)?
  29. 29.⏱️ A video is 575 seconds long. How long is that in minutes and seconds? (a) 9 min 5 s (b) 9 min 35 s (c) 5 min 75 s (d) 10 min 35 s
  30. 30.⏱️ A video has three clips of 31, 26 and 13 seconds. How long is the video (in seconds)?
  31. 31.⏱️ Your video must be 120 seconds long. Your clips add up to 88 seconds. How many more seconds of video do you need?
  32. 32.⏱️ A 32-second clip is sped up to 4× speed. How long does it last now (in seconds)?
  33. 33.⏱️ A 3-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  34. 34.⏱️ Your video must be 90 seconds long. Your clips add up to 21 seconds. How many more seconds of video do you need?
  35. 35.⏱️ A 42-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  36. 36.⏱️ Your video must be 120 seconds long. Your clips add up to 32 seconds. How many more seconds of video do you need?
  37. 37.⏱️ How many seconds is 5 minutes 20 seconds?
  38. 38.⏱️ How many seconds is 3 minutes 18 seconds?
  39. 39.⏱️ A video is 440 seconds long. How long is that in minutes and seconds? (a) 4 min 40 s (b) 7 min 20 s (c) 7 min 50 s (d) 8 min 20 s
  40. 40.⏱️ How many seconds is 9 minutes 3 seconds?

Answer key

  1. half as long
  2. 16
  3. 60
  4. 135
  5. 84
  6. 328
  7. 92
  8. 149
  9. 124
  10. 44
  11. 566
  12. 40
  13. 113
  14. 52
  15. 261
  16. 46
  17. 291
  18. the sum of the clips
  19. 17
  20. 7 min 50 s
  21. 8
  22. 5 min 50 s
  23. 64
  24. 69
  25. 11
  26. 31
  27. 24
  28. 131
  29. 9 min 35 s
  30. 70
  31. 32
  32. 8
  33. 6
  34. 69
  35. 21
  36. 88
  37. 320
  38. 198
  39. 7 min 20 s
  40. 543

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