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Video Editing Worksheet: Video Length

Animation and design lesson 21: Video length sums · Set 249 · 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 4 minutes 1 second?
  2. 2.⏱️ A video has three clips of 16, 33 and 12 seconds. How long is the video (in seconds)?
  3. 3.⏱️ Speeding a clip up to 2× makes it … (a) the same length (b) twice as long (c) silent (d) half as long
  4. 4.⏱️ Your video must be 60 seconds long. Your clips add up to 15 seconds. How many more seconds of video do you need?
  5. 5.⏱️ A 24-second clip is sped up to 4× speed. How long does it last now (in seconds)?
  6. 6.⏱️ A video is 490 seconds long. How long is that in minutes and seconds? (a) 8 min 40 s (b) 9 min 10 s (c) 8 min 10 s (d) 4 min 90 s
  7. 7.⏱️ A video has three clips of 21, 24 and 7 seconds. How long is the video (in seconds)?
  8. 8.⏱️ A video has three clips of 58, 36 and 43 seconds. How long is the video (in seconds)?
  9. 9.⏱️ A video is 285 seconds long. How long is that in minutes and seconds? (a) 4 min 45 s (b) 4 min 15 s (c) 2 min 85 s (d) 5 min 45 s
  10. 10.⏱️ How many seconds is 4 minutes 56 seconds?
  11. 11.⏱️ Your video must be 180 seconds long. Your clips add up to 82 seconds. How many more seconds of video do you need?
  12. 12.⏱️ An 8-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  13. 13.⏱️ A 96-second clip is sped up to 3× speed. How long does it last now (in seconds)?
  14. 14.⏱️ A video is 500 seconds long. How long is that in minutes and seconds? (a) 8 min 20 s (b) 8 min 50 s (c) 5 min 0 s (d) 9 min 20 s
  15. 15.⏱️ A video is 210 seconds long. How long is that in minutes and seconds? (a) 3 min 30 s (b) 3 min 0 s (c) 2 min 10 s (d) 4 min 30 s
  16. 16.⏱️ A 4-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  17. 17.⏱️ Your video must be 120 seconds long. Your clips add up to 15 seconds. How many more seconds of video do you need?
  18. 18.⏱️ A 16-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  19. 19.⏱️ Your video must be 60 seconds long. Your clips add up to 45 seconds. How many more seconds of video do you need?
  20. 20.⏱️ A video is 535 seconds long. How long is that in minutes and seconds? (a) 5 min 35 s (b) 8 min 25 s (c) 8 min 55 s (d) 9 min 55 s
  21. 21.⏱️ Your video must be 120 seconds long. Your clips add up to 10 seconds. How many more seconds of video do you need?
  22. 22.⏱️ A video is 415 seconds long. How long is that in minutes and seconds? (a) 7 min 55 s (b) 6 min 55 s (c) 4 min 15 s (d) 6 min 25 s
  23. 23.⏱️ Your video must be 120 seconds long. Your clips add up to 40 seconds. How many more seconds of video do you need?
  24. 24.⏱️ A video is 270 seconds long. How long is that in minutes and seconds? (a) 4 min 0 s (b) 5 min 30 s (c) 2 min 70 s (d) 4 min 30 s
  25. 25.⏱️ A video has three clips of 29, 46 and 31 seconds. How long is the video (in seconds)?
  26. 26.⏱️ A video is 465 seconds long. How long is that in minutes and seconds? (a) 7 min 45 s (b) 4 min 65 s (c) 7 min 15 s (d) 8 min 45 s
  27. 27.⏱️ A 28-second clip is sped up to 4× speed. How long does it last now (in seconds)?
  28. 28.⏱️ A video has three clips of 15, 20 and 25 seconds. How long is the video (in seconds)?
  29. 29.⏱️ When you put clips one after another, the video length is … (a) the shortest clip (b) the longest clip (c) the sum of the clips (d) always 1 minute
  30. 30.⏱️ A 7-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  31. 31.⏱️ Your video must be 90 seconds long. Your clips add up to 69 seconds. How many more seconds of video do you need?
  32. 32.⏱️ 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
  33. 33.⏱️ A 76-second clip is sped up to 4× speed. How long does it last now (in seconds)?
  34. 34.⏱️ A 9-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  35. 35.⏱️ A video has three clips of 58, 8 and 47 seconds. How long is the video (in seconds)?
  36. 36.⏱️ A 114-second clip is sped up to 3× speed. How long does it last now (in seconds)?
  37. 37.⏱️ A video has three clips of 43, 23 and 47 seconds. How long is the video (in seconds)?
  38. 38.⏱️ How many seconds is 7 minutes 58 seconds?
  39. 39.⏱️ How many seconds is 6 minutes 53 seconds?
  40. 40.⏱️ How many seconds is 5 minutes 58 seconds?

Answer key

  1. 241
  2. 61
  3. half as long
  4. 45
  5. 6
  6. 8 min 10 s
  7. 52
  8. 137
  9. 4 min 45 s
  10. 296
  11. 98
  12. 16
  13. 32
  14. 8 min 20 s
  15. 3 min 30 s
  16. 8
  17. 105
  18. 32
  19. 15
  20. 8 min 55 s
  21. 110
  22. 6 min 55 s
  23. 80
  24. 4 min 30 s
  25. 106
  26. 7 min 45 s
  27. 7
  28. 60
  29. the sum of the clips
  30. 14
  31. 21
  32. 4 min 25 s
  33. 19
  34. 18
  35. 113
  36. 38
  37. 113
  38. 478
  39. 413
  40. 358

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