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Video Editing Worksheet: Video Length

Animation and design lesson 21: Video length sums · Set 296 · 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 60 seconds long. Your clips add up to 40 seconds. How many more seconds of video do you need?
  2. 2.⏱️ Speeding a clip up to 2× makes it … (a) twice as long (b) silent (c) the same length (d) half as long
  3. 3.⏱️ A video has three clips of 7, 46 and 8 seconds. How long is the video (in seconds)?
  4. 4.⏱️ How many seconds is 4 minutes 33 seconds?
  5. 5.⏱️ When you put clips one after another, the video length is … (a) the longest clip (b) always 1 minute (c) the sum of the clips (d) the shortest clip
  6. 6.⏱️ A video has three clips of 46, 45 and 24 seconds. How long is the video (in seconds)?
  7. 7.⏱️ How many seconds is 4 minutes 35 seconds?
  8. 8.⏱️ A 24-second clip is sped up to 4× speed. How long does it last now (in seconds)?
  9. 9.⏱️ How many seconds is 7 minutes 16 seconds?
  10. 10.⏱️ A 26-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  11. 11.⏱️ A video has three clips of 58, 21 and 29 seconds. How long is the video (in seconds)?
  12. 12.⏱️ A 38-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  13. 13.⏱️ A 30-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  14. 14.⏱️ A video is 535 seconds long. How long is that in minutes and seconds? (a) 8 min 25 s (b) 5 min 35 s (c) 9 min 55 s (d) 8 min 55 s
  15. 15.⏱️ A 15-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  16. 16.⏱️ How many seconds is 5 minutes 45 seconds?
  17. 17.⏱️ A 3-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  18. 18.⏱️ How many seconds is 9 minutes 15 seconds?
  19. 19.⏱️ How many seconds are in 1 minute? (a) 10 (b) 60 (c) 100 (d) 30
  20. 20.⏱️ A video is 140 seconds long. How long is that in minutes and seconds? (a) 1 min 40 s (b) 3 min 20 s (c) 2 min 20 s (d) 2 min 50 s
  21. 21.⏱️ A 23-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  22. 22.⏱️ Your video must be 120 seconds long. Your clips add up to 86 seconds. How many more seconds of video do you need?
  23. 23.⏱️ A video is 180 seconds long. How long is that in minutes and seconds? (a) 1 min 80 s (b) 4 min 0 s (c) 3 min 30 s (d) 3 min 0 s
  24. 24.⏱️ A video is 265 seconds long. How long is that in minutes and seconds? (a) 4 min 55 s (b) 5 min 25 s (c) 4 min 25 s (d) 2 min 65 s
  25. 25.⏱️ A 96-second clip is sped up to 3× speed. How long does it last now (in seconds)?
  26. 26.⏱️ A video has three clips of 23, 32 and 8 seconds. How long is the video (in seconds)?
  27. 27.⏱️ A 51-second clip is sped up to 3× speed. How long does it last now (in seconds)?
  28. 28.⏱️ A video is 355 seconds long. How long is that in minutes and seconds? (a) 5 min 25 s (b) 6 min 55 s (c) 3 min 55 s (d) 5 min 55 s
  29. 29.⏱️ A video is 210 seconds long. How long is that in minutes and seconds? (a) 4 min 30 s (b) 2 min 10 s (c) 3 min 0 s (d) 3 min 30 s
  30. 30.⏱️ How many seconds is 9 minutes 7 seconds?
  31. 31.⏱️ How many seconds is 5 minutes 26 seconds?
  32. 32.⏱️ A video is 350 seconds long. How long is that in minutes and seconds? (a) 3 min 50 s (b) 5 min 50 s (c) 5 min 20 s (d) 6 min 50 s
  33. 33.⏱️ A 26-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  34. 34.⏱️ A video has three clips of 27, 37 and 6 seconds. How long is the video (in seconds)?
  35. 35.⏱️ A video has three clips of 28, 6 and 57 seconds. How long is the video (in seconds)?
  36. 36.⏱️ A video is 90 seconds long. How long is that in minutes and seconds? (a) 1 min 0 s (b) 3 min 30 s (c) 1 min 30 s (d) 2 min 30 s
  37. 37.⏱️ Your video must be 120 seconds long. Your clips add up to 28 seconds. How many more seconds of video do you need?
  38. 38.⏱️ A 48-second clip is sped up to 3× speed. How long does it last now (in seconds)?
  39. 39.⏱️ A 29-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  40. 40.⏱️ A 112-second clip is sped up to 4× speed. How long does it last now (in seconds)?

Answer key

  1. 20
  2. half as long
  3. 61
  4. 273
  5. the sum of the clips
  6. 115
  7. 275
  8. 6
  9. 436
  10. 13
  11. 108
  12. 19
  13. 15
  14. 8 min 55 s
  15. 30
  16. 345
  17. 6
  18. 555
  19. 60
  20. 2 min 20 s
  21. 46
  22. 34
  23. 3 min 0 s
  24. 4 min 25 s
  25. 32
  26. 63
  27. 17
  28. 5 min 55 s
  29. 3 min 30 s
  30. 547
  31. 326
  32. 5 min 50 s
  33. 52
  34. 70
  35. 91
  36. 1 min 30 s
  37. 92
  38. 16
  39. 58
  40. 28

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