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Video Editing Worksheet: Video Length

Animation and design lesson 21: Video length sums · Set 347 · 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.⏱️ A video has three clips of 17, 20 and 17 seconds. How long is the video (in seconds)?
  2. 2.⏱️ Your video must be 60 seconds long. Your clips add up to 6 seconds. How many more seconds of video do you need?
  3. 3.⏱️ A 24-second clip is sped up to 4× speed. How long does it last now (in seconds)?
  4. 4.⏱️ How many seconds are in 1 minute? (a) 60 (b) 10 (c) 30 (d) 100
  5. 5.⏱️ How many seconds is 7 minutes 26 seconds?
  6. 6.⏱️ Your video must be 90 seconds long. Your clips add up to 9 seconds. How many more seconds of video do you need?
  7. 7.⏱️ A 21-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  8. 8.⏱️ A video is 340 seconds long. How long is that in minutes and seconds? (a) 6 min 40 s (b) 3 min 40 s (c) 5 min 40 s (d) 5 min 10 s
  9. 9.⏱️ A video is 205 seconds long. How long is that in minutes and seconds? (a) 2 min 5 s (b) 3 min 25 s (c) 4 min 25 s (d) 3 min 55 s
  10. 10.⏱️ A 104-second clip is sped up to 4× speed. How long does it last now (in seconds)?
  11. 11.⏱️ A 36-second clip is sped up to 4× speed. How long does it last now (in seconds)?
  12. 12.⏱️ A video has three clips of 31, 42 and 25 seconds. How long is the video (in seconds)?
  13. 13.⏱️ How many seconds is 5 minutes 47 seconds?
  14. 14.⏱️ How many seconds is 6 minutes 43 seconds?
  15. 15.⏱️ A video has three clips of 39, 41 and 36 seconds. How long is the video (in seconds)?
  16. 16.⏱️ How many seconds is 2 minutes 5 seconds?
  17. 17.⏱️ A 5-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  18. 18.⏱️ A 96-second clip is sped up to 4× speed. How long does it last now (in seconds)?
  19. 19.⏱️ A 114-second clip is sped up to 3× speed. How long does it last now (in seconds)?
  20. 20.⏱️ An 18-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  21. 21.⏱️ When you put clips one after another, the video length is … (a) always 1 minute (b) the shortest clip (c) the sum of the clips (d) the longest clip
  22. 22.⏱️ Your video must be 120 seconds long. Your clips add up to 31 seconds. How many more seconds of video do you need?
  23. 23.⏱️ A 32-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  24. 24.⏱️ A video has three clips of 27, 47 and 13 seconds. How long is the video (in seconds)?
  25. 25.⏱️ A video is 180 seconds long. How long is that in minutes and seconds? (a) 4 min 0 s (b) 1 min 80 s (c) 3 min 30 s (d) 3 min 0 s
  26. 26.⏱️ A 9-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  27. 27.⏱️ A video is 550 seconds long. How long is that in minutes and seconds? (a) 9 min 10 s (b) 10 min 10 s (c) 9 min 40 s (d) 5 min 50 s
  28. 28.⏱️ A video has three clips of 51, 50 and 5 seconds. How long is the video (in seconds)?
  29. 29.⏱️ A 40-second clip is sped up to 4× speed. How long does it last now (in seconds)?
  30. 30.⏱️ Speeding a clip up to 2× makes it … (a) twice as long (b) the same length (c) half as long (d) silent
  31. 31.⏱️ Your video must be 180 seconds long. Your clips add up to 98 seconds. How many more seconds of video do you need?
  32. 32.⏱️ A 4-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  33. 33.⏱️ A video has three clips of 10, 13 and 35 seconds. How long is the video (in seconds)?
  34. 34.⏱️ Your video must be 180 seconds long. Your clips add up to 41 seconds. How many more seconds of video do you need?
  35. 35.⏱️ How many seconds is 5 minutes 24 seconds?
  36. 36.⏱️ A 54-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  37. 37.⏱️ A video has three clips of 7, 14 and 55 seconds. How long is the video (in seconds)?
  38. 38.⏱️ A video is 325 seconds long. How long is that in minutes and seconds? (a) 6 min 25 s (b) 5 min 55 s (c) 3 min 25 s (d) 5 min 25 s
  39. 39.⏱️ A video is 250 seconds long. How long is that in minutes and seconds? (a) 2 min 50 s (b) 4 min 10 s (c) 5 min 10 s (d) 4 min 40 s
  40. 40.⏱️ How many seconds is 7 minutes 16 seconds?

Answer key

  1. 54
  2. 54
  3. 6
  4. 60
  5. 446
  6. 81
  7. 42
  8. 5 min 40 s
  9. 3 min 25 s
  10. 26
  11. 9
  12. 98
  13. 347
  14. 403
  15. 116
  16. 125
  17. 10
  18. 24
  19. 38
  20. 9
  21. the sum of the clips
  22. 89
  23. 16
  24. 87
  25. 3 min 0 s
  26. 18
  27. 9 min 10 s
  28. 106
  29. 10
  30. half as long
  31. 82
  32. 8
  33. 58
  34. 139
  35. 324
  36. 27
  37. 76
  38. 5 min 25 s
  39. 4 min 10 s
  40. 436

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