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Video Editing Worksheet: Video Length

Animation and design lesson 21: Video length sums · Set 308 · 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.⏱️ How many seconds is 5 minutes 5 seconds?
  2. 2.⏱️ A video has three clips of 51, 12 and 52 seconds. How long is the video (in seconds)?
  3. 3.⏱️ How many seconds is 6 minutes 25 seconds?
  4. 4.⏱️ A video is 385 seconds long. How long is that in minutes and seconds? (a) 3 min 85 s (b) 6 min 25 s (c) 7 min 25 s (d) 6 min 55 s
  5. 5.⏱️ Speeding a clip up to 2× makes it … (a) twice as long (b) the same length (c) half as long (d) silent
  6. 6.⏱️ A video has three clips of 28, 14 and 49 seconds. How long is the video (in seconds)?
  7. 7.⏱️ A video is 580 seconds long. How long is that in minutes and seconds? (a) 9 min 10 s (b) 5 min 80 s (c) 10 min 40 s (d) 9 min 40 s
  8. 8.⏱️ An 8-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  9. 9.⏱️ A 90-second clip is sped up to 3× speed. How long does it last now (in seconds)?
  10. 10.⏱️ How many seconds is 8 minutes 15 seconds?
  11. 11.⏱️ A video is 455 seconds long. How long is that in minutes and seconds? (a) 8 min 35 s (b) 7 min 35 s (c) 7 min 5 s (d) 4 min 55 s
  12. 12.⏱️ A video has three clips of 58, 49 and 7 seconds. How long is the video (in seconds)?
  13. 13.⏱️ When you put clips one after another, the video length is … (a) the shortest clip (b) always 1 minute (c) the sum of the clips (d) the longest clip
  14. 14.⏱️ How many seconds is 4 minutes 35 seconds?
  15. 15.⏱️ How many seconds is 6 minutes 23 seconds?
  16. 16.⏱️ Your video must be 180 seconds long. Your clips add up to 47 seconds. How many more seconds of video do you need?
  17. 17.⏱️ Your video must be 90 seconds long. Your clips add up to 75 seconds. How many more seconds of video do you need?
  18. 18.⏱️ A video is 120 seconds long. How long is that in minutes and seconds? (a) 2 min 30 s (b) 1 min 20 s (c) 2 min 0 s (d) 3 min 0 s
  19. 19.⏱️ How many seconds is 8 minutes 41 seconds?
  20. 20.⏱️ A 12-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  21. 21.⏱️ Your video must be 180 seconds long. Your clips add up to 49 seconds. How many more seconds of video do you need?
  22. 22.⏱️ A video has three clips of 55, 12 and 41 seconds. How long is the video (in seconds)?
  23. 23.⏱️ A 24-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  24. 24.⏱️ How many seconds are in 1 minute? (a) 100 (b) 10 (c) 60 (d) 30
  25. 25.⏱️ A 112-second clip is sped up to 4× speed. How long does it last now (in seconds)?
  26. 26.⏱️ A video has three clips of 48, 34 and 17 seconds. How long is the video (in seconds)?
  27. 27.⏱️ Your video must be 90 seconds long. Your clips add up to 59 seconds. How many more seconds of video do you need?
  28. 28.⏱️ A 28-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  29. 29.⏱️ A 14-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  30. 30.⏱️ A 92-second clip is sped up to 4× speed. How long does it last now (in seconds)?
  31. 31.⏱️ A 69-second clip is sped up to 3× speed. How long does it last now (in seconds)?
  32. 32.⏱️ Your video must be 180 seconds long. Your clips add up to 147 seconds. How many more seconds of video do you need?
  33. 33.⏱️ A 52-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  34. 34.⏱️ How many seconds is 9 minutes 4 seconds?
  35. 35.⏱️ A video is 410 seconds long. How long is that in minutes and seconds? (a) 4 min 10 s (b) 6 min 50 s (c) 6 min 20 s (d) 7 min 50 s
  36. 36.⏱️ A video has three clips of 33, 46 and 42 seconds. How long is the video (in seconds)?
  37. 37.⏱️ How many seconds is 4 minutes 56 seconds?
  38. 38.⏱️ A video is 195 seconds long. How long is that in minutes and seconds? (a) 4 min 15 s (b) 3 min 45 s (c) 1 min 95 s (d) 3 min 15 s
  39. 39.⏱️ Your video must be 90 seconds long. Your clips add up to 32 seconds. How many more seconds of video do you need?
  40. 40.⏱️ A 22-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?

Answer key

  1. 305
  2. 115
  3. 385
  4. 6 min 25 s
  5. half as long
  6. 91
  7. 9 min 40 s
  8. 16
  9. 30
  10. 495
  11. 7 min 35 s
  12. 114
  13. the sum of the clips
  14. 275
  15. 383
  16. 133
  17. 15
  18. 2 min 0 s
  19. 521
  20. 24
  21. 131
  22. 108
  23. 12
  24. 60
  25. 28
  26. 99
  27. 31
  28. 14
  29. 7
  30. 23
  31. 23
  32. 33
  33. 26
  34. 544
  35. 6 min 50 s
  36. 121
  37. 296
  38. 3 min 15 s
  39. 58
  40. 44

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