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Video Editing Worksheet: Video Length

Animation and design lesson 21: Video length sums · Set 323 · 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 2 minutes 33 seconds?
  2. 2.⏱️ How many seconds are in 1 minute? (a) 10 (b) 30 (c) 60 (d) 100
  3. 3.⏱️ How many seconds is 7 minutes 44 seconds?
  4. 4.⏱️ A 74-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  5. 5.⏱️ A video has three clips of 44, 16 and 24 seconds. How long is the video (in seconds)?
  6. 6.⏱️ A 32-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  7. 7.⏱️ A 25-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  8. 8.⏱️ A 4-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  9. 9.⏱️ Your video must be 120 seconds long. Your clips add up to 23 seconds. How many more seconds of video do you need?
  10. 10.⏱️ A video has three clips of 16, 55 and 29 seconds. How long is the video (in seconds)?
  11. 11.⏱️ A video is 250 seconds long. How long is that in minutes and seconds? (a) 4 min 40 s (b) 5 min 10 s (c) 4 min 10 s (d) 2 min 50 s
  12. 12.⏱️ A 120-second clip is sped up to 4× speed. How long does it last now (in seconds)?
  13. 13.⏱️ How many seconds is 6 minutes 28 seconds?
  14. 14.⏱️ How many seconds is 5 minutes 29 seconds?
  15. 15.⏱️ A 20-second clip is sped up to 4× speed. How long does it last now (in seconds)?
  16. 16.⏱️ When you put clips one after another, the video length is … (a) always 1 minute (b) the shortest clip (c) the longest clip (d) the sum of the clips
  17. 17.⏱️ A video has three clips of 27, 58 and 27 seconds. How long is the video (in seconds)?
  18. 18.⏱️ A 28-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 13 seconds. How many more seconds of video do you need?
  20. 20.⏱️ Your video must be 90 seconds long. Your clips add up to 28 seconds. How many more seconds of video do you need?
  21. 21.⏱️ Your video must be 120 seconds long. Your clips add up to 34 seconds. How many more seconds of video do you need?
  22. 22.⏱️ How many seconds is 2 minutes 12 seconds?
  23. 23.⏱️ A video is 575 seconds long. How long is that in minutes and seconds? (a) 10 min 35 s (b) 5 min 75 s (c) 9 min 5 s (d) 9 min 35 s
  24. 24.⏱️ A video has three clips of 18, 14 and 7 seconds. How long is the video (in seconds)?
  25. 25.⏱️ Speeding a clip up to 2× makes it … (a) twice as long (b) silent (c) the same length (d) half as long
  26. 26.⏱️ A 28-second clip is sped up to 4× speed. How long does it last now (in seconds)?
  27. 27.⏱️ A 40-second clip is sped up to 4× speed. How long does it last now (in seconds)?
  28. 28.⏱️ How many seconds is 2 minutes 10 seconds?
  29. 29.⏱️ How many seconds is 4 minutes 16 seconds?
  30. 30.⏱️ A 30-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  31. 31.⏱️ A 24-second clip is sped up to 4× speed. How long does it last now (in seconds)?
  32. 32.⏱️ A 12-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  33. 33.⏱️ How many seconds is 9 minutes 19 seconds?
  34. 34.⏱️ Your video must be 120 seconds long. Your clips add up to 93 seconds. How many more seconds of video do you need?
  35. 35.⏱️ A video is 170 seconds long. How long is that in minutes and seconds? (a) 1 min 70 s (b) 3 min 50 s (c) 2 min 50 s (d) 2 min 20 s
  36. 36.⏱️ A video is 340 seconds long. How long is that in minutes and seconds? (a) 5 min 10 s (b) 5 min 40 s (c) 6 min 40 s (d) 3 min 40 s
  37. 37.⏱️ Your video must be 90 seconds long. Your clips add up to 30 seconds. How many more seconds of video do you need?
  38. 38.⏱️ A 9-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  39. 39.⏱️ Your video must be 180 seconds long. Your clips add up to 51 seconds. How many more seconds of video do you need?
  40. 40.⏱️ A video has three clips of 17, 50 and 15 seconds. How long is the video (in seconds)?

Answer key

  1. 153
  2. 60
  3. 464
  4. 37
  5. 84
  6. 16
  7. 50
  8. 8
  9. 97
  10. 100
  11. 4 min 10 s
  12. 30
  13. 388
  14. 329
  15. 5
  16. the sum of the clips
  17. 112
  18. 56
  19. 47
  20. 62
  21. 86
  22. 132
  23. 9 min 35 s
  24. 39
  25. half as long
  26. 7
  27. 10
  28. 130
  29. 256
  30. 60
  31. 6
  32. 24
  33. 559
  34. 27
  35. 2 min 50 s
  36. 5 min 40 s
  37. 60
  38. 18
  39. 129
  40. 82

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