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Video Editing Worksheet: Video Length

Animation and design lesson 21: Video length sums · Set 10 · 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 3-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  2. 2.⏱️ A 15-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  3. 3.⏱️ A video is 295 seconds long. How long is that in minutes and seconds? (a) 4 min 55 s (b) 4 min 25 s (c) 5 min 55 s (d) 2 min 95 s
  4. 4.⏱️ Your video must be 60 seconds long. Your clips add up to 20 seconds. How many more seconds of video do you need?
  5. 5.⏱️ Your video must be 90 seconds long. Your clips add up to 65 seconds. How many more seconds of video do you need?
  6. 6.⏱️ A video has three clips of 52, 27 and 18 seconds. How long is the video (in seconds)?
  7. 7.⏱️ How many seconds is 7 minutes 8 seconds?
  8. 8.⏱️ Speeding a clip up to 2× makes it … (a) twice as long (b) silent (c) the same length (d) half as long
  9. 9.⏱️ A video has three clips of 6, 51 and 6 seconds. How long is the video (in seconds)?
  10. 10.⏱️ A 56-second clip is sped up to 4× speed. How long does it last now (in seconds)?
  11. 11.⏱️ How many seconds is 8 minutes 21 seconds?
  12. 12.⏱️ Your video must be 90 seconds long. Your clips add up to 64 seconds. How many more seconds of video do you need?
  13. 13.⏱️ Your video must be 60 seconds long. Your clips add up to 7 seconds. How many more seconds of video do you need?
  14. 14.⏱️ A 5-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  15. 15.⏱️ When you put clips one after another, the video length is … (a) the longest clip (b) the sum of the clips (c) the shortest clip (d) always 1 minute
  16. 16.⏱️ A video has three clips of 6, 7 and 60 seconds. How long is the video (in seconds)?
  17. 17.⏱️ Your video must be 90 seconds long. Your clips add up to 5 seconds. How many more seconds of video do you need?
  18. 18.⏱️ Your video must be 120 seconds long. Your clips add up to 84 seconds. How many more seconds of video do you need?
  19. 19.⏱️ Your video must be 60 seconds long. Your clips add up to 32 seconds. How many more seconds of video do you need?
  20. 20.⏱️ A video is 140 seconds long. How long is that in minutes and seconds? (a) 1 min 40 s (b) 2 min 50 s (c) 2 min 20 s (d) 3 min 20 s
  21. 21.⏱️ An 18-second clip is sped up to 3× speed. How long does it last now (in seconds)?
  22. 22.⏱️ A 22-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  23. 23.⏱️ A video is 75 seconds long. How long is that in minutes and seconds? (a) 3 min 15 s (b) 1 min 15 s (c) 1 min 45 s (d) 2 min 15 s
  24. 24.⏱️ A video has three clips of 56, 38 and 16 seconds. How long is the video (in seconds)?
  25. 25.⏱️ How many seconds is 4 minutes 10 seconds?
  26. 26.⏱️ How many seconds is 4 minutes 41 seconds?
  27. 27.⏱️ How many seconds is 9 minutes 47 seconds?
  28. 28.⏱️ A 24-second clip is sped up to 4× speed. How long does it last now (in seconds)?
  29. 29.⏱️ A 19-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  30. 30.⏱️ How many seconds are in 1 minute? (a) 60 (b) 10 (c) 30 (d) 100
  31. 31.⏱️ How many seconds is 2 minutes 47 seconds?
  32. 32.⏱️ A 64-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  33. 33.⏱️ A video is 475 seconds long. How long is that in minutes and seconds? (a) 7 min 55 s (b) 4 min 75 s (c) 8 min 55 s (d) 7 min 25 s
  34. 34.⏱️ A 28-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  35. 35.⏱️ How many seconds is 2 minutes 19 seconds?
  36. 36.⏱️ A 27-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  37. 37.⏱️ A video has three clips of 5, 50 and 5 seconds. How long is the video (in seconds)?
  38. 38.⏱️ A video has three clips of 14, 8 and 16 seconds. How long is the video (in seconds)?
  39. 39.⏱️ How many seconds is 7 minutes 34 seconds?
  40. 40.⏱️ A 7-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?

Answer key

  1. 6
  2. 30
  3. 4 min 55 s
  4. 40
  5. 25
  6. 97
  7. 428
  8. half as long
  9. 63
  10. 14
  11. 501
  12. 26
  13. 53
  14. 10
  15. the sum of the clips
  16. 73
  17. 85
  18. 36
  19. 28
  20. 2 min 20 s
  21. 6
  22. 44
  23. 1 min 15 s
  24. 110
  25. 250
  26. 281
  27. 587
  28. 6
  29. 38
  30. 60
  31. 167
  32. 32
  33. 7 min 55 s
  34. 14
  35. 139
  36. 54
  37. 60
  38. 38
  39. 454
  40. 14

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