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Video Editing Worksheet: Video Length

Animation and design lesson 21: Video length sums · Set 345 · 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) half as long (b) the same length (c) twice as long (d) silent
  2. 2.⏱️ A video is 310 seconds long. How long is that in minutes and seconds? (a) 6 min 10 s (b) 5 min 10 s (c) 5 min 40 s (d) 3 min 10 s
  3. 3.⏱️ A 15-second clip is sped up to 3× speed. How long does it last now (in seconds)?
  4. 4.⏱️ How many seconds is 9 minutes 9 seconds?
  5. 5.⏱️ How many seconds are in 1 minute? (a) 10 (b) 60 (c) 100 (d) 30
  6. 6.⏱️ Your video must be 60 seconds long. Your clips add up to 30 seconds. How many more seconds of video do you need?
  7. 7.⏱️ A video is 290 seconds long. How long is that in minutes and seconds? (a) 4 min 50 s (b) 5 min 50 s (c) 4 min 20 s (d) 2 min 90 s
  8. 8.⏱️ A video has three clips of 14, 54 and 20 seconds. How long is the video (in seconds)?
  9. 9.⏱️ A 52-second clip is sped up to 4× speed. How long does it last now (in seconds)?
  10. 10.⏱️ A video has three clips of 26, 51 and 51 seconds. How long is the video (in seconds)?
  11. 11.⏱️ Your video must be 120 seconds long. Your clips add up to 31 seconds. How many more seconds of video do you need?
  12. 12.⏱️ How many seconds is 4 minutes 3 seconds?
  13. 13.⏱️ A 132-second clip is sped up to 4× speed. How long does it last now (in seconds)?
  14. 14.⏱️ A 6-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  15. 15.⏱️ A video has three clips of 44, 15 and 25 seconds. How long is the video (in seconds)?
  16. 16.⏱️ How many seconds is 8 minutes 35 seconds?
  17. 17.⏱️ Your video must be 180 seconds long. Your clips add up to 12 seconds. How many more seconds of video do you need?
  18. 18.⏱️ A video is 280 seconds long. How long is that in minutes and seconds? (a) 4 min 10 s (b) 2 min 80 s (c) 5 min 40 s (d) 4 min 40 s
  19. 19.⏱️ Your video must be 90 seconds long. Your clips add up to 66 seconds. How many more seconds of video do you need?
  20. 20.⏱️ A 108-second clip is sped up to 4× speed. How long does it last now (in seconds)?
  21. 21.⏱️ A video has three clips of 48, 55 and 33 seconds. How long is the video (in seconds)?
  22. 22.⏱️ How many seconds is 8 minutes 22 seconds?
  23. 23.⏱️ How many seconds is 7 minutes 38 seconds?
  24. 24.⏱️ A video has three clips of 26, 6 and 5 seconds. How long is the video (in seconds)?
  25. 25.⏱️ How many seconds is 8 minutes 7 seconds?
  26. 26.⏱️ Your video must be 120 seconds long. Your clips add up to 73 seconds. How many more seconds of video do you need?
  27. 27.⏱️ A video has three clips of 15, 15 and 57 seconds. How long is the video (in seconds)?
  28. 28.⏱️ A 3-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  29. 29.⏱️ A video is 430 seconds long. How long is that in minutes and seconds? (a) 4 min 30 s (b) 8 min 10 s (c) 7 min 40 s (d) 7 min 10 s
  30. 30.⏱️ A 14-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  31. 31.⏱️ An 18-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  32. 32.⏱️ Your video must be 120 seconds long. Your clips add up to 52 seconds. How many more seconds of video do you need?
  33. 33.⏱️ A video is 80 seconds long. How long is that in minutes and seconds? (a) 1 min 50 s (b) 1 min 20 s (c) 3 min 20 s (d) 2 min 20 s
  34. 34.⏱️ A 20-second clip is sped up to 4× speed. How long does it last now (in seconds)?
  35. 35.⏱️ A video is 435 seconds long. How long is that in minutes and seconds? (a) 7 min 15 s (b) 7 min 45 s (c) 8 min 15 s (d) 4 min 35 s
  36. 36.⏱️ When you put clips one after another, the video length is … (a) the shortest clip (b) the longest clip (c) always 1 minute (d) the sum of the clips
  37. 37.⏱️ A 20-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  38. 38.⏱️ A video has three clips of 21, 16 and 38 seconds. How long is the video (in seconds)?
  39. 39.⏱️ A 102-second clip is sped up to 3× speed. How long does it last now (in seconds)?
  40. 40.⏱️ How many seconds is 9 minutes 5 seconds?

Answer key

  1. half as long
  2. 5 min 10 s
  3. 5
  4. 549
  5. 60
  6. 30
  7. 4 min 50 s
  8. 88
  9. 13
  10. 128
  11. 89
  12. 243
  13. 33
  14. 12
  15. 84
  16. 515
  17. 168
  18. 4 min 40 s
  19. 24
  20. 27
  21. 136
  22. 502
  23. 458
  24. 37
  25. 487
  26. 47
  27. 87
  28. 6
  29. 7 min 10 s
  30. 28
  31. 36
  32. 68
  33. 1 min 20 s
  34. 5
  35. 7 min 15 s
  36. the sum of the clips
  37. 40
  38. 75
  39. 34
  40. 545

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