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Video Editing Worksheet: Video Length

Animation and design lesson 21: Video length sums · Set 295 · 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 48 seconds. How many more seconds of video do you need?
  2. 2.⏱️ How many seconds is 3 minutes 26 seconds?
  3. 3.⏱️ A video has three clips of 53, 12 and 54 seconds. How long is the video (in seconds)?
  4. 4.⏱️ Your video must be 120 seconds long. Your clips add up to 104 seconds. How many more seconds of video do you need?
  5. 5.⏱️ When you put clips one after another, the video length is … (a) always 1 minute (b) the longest clip (c) the sum of the clips (d) the shortest clip
  6. 6.⏱️ How many seconds is 1 minute 4 seconds?
  7. 7.⏱️ A 23-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  8. 8.⏱️ How many seconds are in 1 minute? (a) 10 (b) 30 (c) 100 (d) 60
  9. 9.⏱️ Speeding a clip up to 2× makes it … (a) silent (b) the same length (c) twice as long (d) half as long
  10. 10.⏱️ A 9-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  11. 11.⏱️ How many seconds is 8 minutes 24 seconds?
  12. 12.⏱️ A video has three clips of 48, 26 and 58 seconds. How long is the video (in seconds)?
  13. 13.⏱️ A 52-second clip is sped up to 4× speed. How long does it last now (in seconds)?
  14. 14.⏱️ An 18-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  15. 15.⏱️ A 6-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  16. 16.⏱️ A video has three clips of 57, 34 and 34 seconds. How long is the video (in seconds)?
  17. 17.⏱️ A video is 145 seconds long. How long is that in minutes and seconds? (a) 2 min 55 s (b) 3 min 25 s (c) 1 min 45 s (d) 2 min 25 s
  18. 18.⏱️ A 14-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  19. 19.⏱️ A 19-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  20. 20.⏱️ Your video must be 60 seconds long. Your clips add up to 39 seconds. How many more seconds of video do you need?
  21. 21.⏱️ Your video must be 60 seconds long. Your clips add up to 29 seconds. How many more seconds of video do you need?
  22. 22.⏱️ A 120-second clip is sped up to 4× speed. How long does it last now (in seconds)?
  23. 23.⏱️ A 93-second clip is sped up to 3× speed. How long does it last now (in seconds)?
  24. 24.⏱️ How many seconds is 4 minutes 4 seconds?
  25. 25.⏱️ A video has three clips of 24, 24 and 15 seconds. How long is the video (in seconds)?
  26. 26.⏱️ A 50-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  27. 27.⏱️ A 26-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  28. 28.⏱️ A video has three clips of 23, 13 and 28 seconds. How long is the video (in seconds)?
  29. 29.⏱️ A 32-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  30. 30.⏱️ How many seconds is 7 minutes 6 seconds?
  31. 31.⏱️ How many seconds is 5 minutes 13 seconds?
  32. 32.⏱️ How many seconds is 7 minutes 21 seconds?
  33. 33.⏱️ A 63-second clip is sped up to 3× speed. How long does it last now (in seconds)?
  34. 34.⏱️ How many seconds is 1 minute 1 second?
  35. 35.⏱️ A 152-second clip is sped up to 4× speed. How long does it last now (in seconds)?
  36. 36.⏱️ Your video must be 120 seconds long. Your clips add up to 12 seconds. How many more seconds of video do you need?
  37. 37.⏱️ A 21-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  38. 38.⏱️ A video is 340 seconds long. How long is that in minutes and seconds? (a) 6 min 40 s (b) 5 min 40 s (c) 5 min 10 s (d) 3 min 40 s
  39. 39.⏱️ Your video must be 180 seconds long. Your clips add up to 87 seconds. How many more seconds of video do you need?
  40. 40.⏱️ Your video must be 90 seconds long. Your clips add up to 10 seconds. How many more seconds of video do you need?

Answer key

  1. 42
  2. 206
  3. 119
  4. 16
  5. the sum of the clips
  6. 64
  7. 46
  8. 60
  9. half as long
  10. 18
  11. 504
  12. 132
  13. 13
  14. 36
  15. 12
  16. 125
  17. 2 min 25 s
  18. 28
  19. 38
  20. 21
  21. 31
  22. 30
  23. 31
  24. 244
  25. 63
  26. 25
  27. 52
  28. 64
  29. 16
  30. 426
  31. 313
  32. 441
  33. 21
  34. 61
  35. 38
  36. 108
  37. 42
  38. 5 min 40 s
  39. 93
  40. 80

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