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Video Editing Worksheet: Video Length

Animation and design lesson 21: Video length sums · Set 157 · 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.⏱️ Your video must be 90 seconds long. Your clips add up to 22 seconds. How many more seconds of video do you need?
  2. 2.⏱️ How many seconds is 7 minutes 16 seconds?
  3. 3.⏱️ A 63-second clip is sped up to 3× speed. How long does it last now (in seconds)?
  4. 4.⏱️ A video is 235 seconds long. How long is that in minutes and seconds? (a) 3 min 55 s (b) 2 min 35 s (c) 3 min 25 s (d) 4 min 55 s
  5. 5.⏱️ A 26-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  6. 6.⏱️ When you put clips one after another, the video length is … (a) the longest clip (b) the sum of the clips (c) always 1 minute (d) the shortest clip
  7. 7.⏱️ A video has three clips of 55, 46 and 30 seconds. How long is the video (in seconds)?
  8. 8.⏱️ A video has three clips of 16, 50 and 23 seconds. How long is the video (in seconds)?
  9. 9.⏱️ Your video must be 180 seconds long. Your clips add up to 30 seconds. How many more seconds of video do you need?
  10. 10.⏱️ A video has three clips of 58, 53 and 23 seconds. How long is the video (in seconds)?
  11. 11.⏱️ How many seconds are in 1 minute? (a) 30 (b) 60 (c) 100 (d) 10
  12. 12.⏱️ A video has three clips of 57, 56 and 15 seconds. How long is the video (in seconds)?
  13. 13.⏱️ How many seconds is 9 minutes 37 seconds?
  14. 14.⏱️ Your video must be 60 seconds long. Your clips add up to 37 seconds. How many more seconds of video do you need?
  15. 15.⏱️ A video has three clips of 11, 34 and 55 seconds. How long is the video (in seconds)?
  16. 16.⏱️ A 50-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  17. 17.⏱️ A 5-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  18. 18.⏱️ A video is 300 seconds long. How long is that in minutes and seconds? (a) 5 min 0 s (b) 6 min 0 s (c) 5 min 30 s (d) 3 min 0 s
  19. 19.⏱️ A video has three clips of 45, 27 and 37 seconds. How long is the video (in seconds)?
  20. 20.⏱️ A 48-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  21. 21.⏱️ Speeding a clip up to 2× makes it … (a) the same length (b) silent (c) half as long (d) twice as long
  22. 22.⏱️ A video has three clips of 20, 27 and 15 seconds. How long is the video (in seconds)?
  23. 23.⏱️ A video has three clips of 26, 24 and 35 seconds. How long is the video (in seconds)?
  24. 24.⏱️ A 117-second clip is sped up to 3× speed. How long does it last now (in seconds)?
  25. 25.⏱️ A 20-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  26. 26.⏱️ A 3-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  27. 27.⏱️ An 11-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  28. 28.⏱️ A 116-second clip is sped up to 4× speed. How long does it last now (in seconds)?
  29. 29.⏱️ How many seconds is 2 minutes 57 seconds?
  30. 30.⏱️ A 96-second clip is sped up to 3× speed. How long does it last now (in seconds)?
  31. 31.⏱️ A video is 60 seconds long. How long is that in minutes and seconds? (a) 1 min 0 s (b) 2 min 0 s (c) 1 min 30 s (d) 3 min 0 s
  32. 32.⏱️ An 80-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  33. 33.⏱️ Your video must be 120 seconds long. Your clips add up to 13 seconds. How many more seconds of video do you need?
  34. 34.⏱️ How many seconds is 7 minutes 52 seconds?
  35. 35.⏱️ Your video must be 180 seconds long. Your clips add up to 96 seconds. How many more seconds of video do you need?
  36. 36.⏱️ Your video must be 60 seconds long. Your clips add up to 17 seconds. How many more seconds of video do you need?
  37. 37.⏱️ Your video must be 120 seconds long. Your clips add up to 111 seconds. How many more seconds of video do you need?
  38. 38.⏱️ A 30-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  39. 39.⏱️ A 20-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  40. 40.⏱️ A 9-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?

Answer key

  1. 68
  2. 436
  3. 21
  4. 3 min 55 s
  5. 52
  6. the sum of the clips
  7. 131
  8. 89
  9. 150
  10. 134
  11. 60
  12. 128
  13. 577
  14. 23
  15. 100
  16. 25
  17. 10
  18. 5 min 0 s
  19. 109
  20. 24
  21. half as long
  22. 62
  23. 85
  24. 39
  25. 40
  26. 6
  27. 22
  28. 29
  29. 177
  30. 32
  31. 1 min 0 s
  32. 40
  33. 107
  34. 472
  35. 84
  36. 43
  37. 9
  38. 60
  39. 10
  40. 18

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