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Video Editing Worksheet: Video Length

Animation and design lesson 21: Video length sums · Set 185 · 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 is 510 seconds long. How long is that in minutes and seconds? (a) 5 min 10 s (b) 9 min 30 s (c) 8 min 0 s (d) 8 min 30 s
  2. 2.⏱️ When you put clips one after another, the video length is … (a) the shortest clip (b) the sum of the clips (c) always 1 minute (d) the longest clip
  3. 3.⏱️ A video has three clips of 46, 10 and 16 seconds. How long is the video (in seconds)?
  4. 4.⏱️ A 108-second clip is sped up to 4× speed. How long does it last now (in seconds)?
  5. 5.⏱️ Your video must be 60 seconds long. Your clips add up to 16 seconds. How many more seconds of video do you need?
  6. 6.⏱️ Speeding a clip up to 2× makes it … (a) twice as long (b) the same length (c) silent (d) half as long
  7. 7.⏱️ A 24-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  8. 8.⏱️ A 13-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  9. 9.⏱️ A video has three clips of 7, 53 and 17 seconds. How long is the video (in seconds)?
  10. 10.⏱️ Your video must be 90 seconds long. Your clips add up to 12 seconds. How many more seconds of video do you need?
  11. 11.⏱️ How many seconds are in 1 minute? (a) 100 (b) 60 (c) 30 (d) 10
  12. 12.⏱️ Your video must be 180 seconds long. Your clips add up to 53 seconds. How many more seconds of video do you need?
  13. 13.⏱️ A video has three clips of 55, 49 and 51 seconds. How long is the video (in seconds)?
  14. 14.⏱️ Your video must be 90 seconds long. Your clips add up to 59 seconds. How many more seconds of video do you need?
  15. 15.⏱️ How many seconds is 2 minutes 27 seconds?
  16. 16.⏱️ Your video must be 60 seconds long. Your clips add up to 25 seconds. How many more seconds of video do you need?
  17. 17.⏱️ A video has three clips of 22, 11 and 60 seconds. How long is the video (in seconds)?
  18. 18.⏱️ A 7-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  19. 19.⏱️ An 18-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  20. 20.⏱️ How many seconds is 4 minutes 44 seconds?
  21. 21.⏱️ Your video must be 90 seconds long. Your clips add up to 63 seconds. How many more seconds of video do you need?
  22. 22.⏱️ How many seconds is 8 minutes 22 seconds?
  23. 23.⏱️ How many seconds is 3 minutes 37 seconds?
  24. 24.⏱️ A 68-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  25. 25.⏱️ How many seconds is 2 minutes 7 seconds?
  26. 26.⏱️ Your video must be 90 seconds long. Your clips add up to 44 seconds. How many more seconds of video do you need?
  27. 27.⏱️ A 60-second clip is sped up to 3× speed. How long does it last now (in seconds)?
  28. 28.⏱️ A video is 225 seconds long. How long is that in minutes and seconds? (a) 3 min 15 s (b) 4 min 45 s (c) 3 min 45 s (d) 2 min 25 s
  29. 29.⏱️ A video is 200 seconds long. How long is that in minutes and seconds? (a) 3 min 50 s (b) 4 min 20 s (c) 2 min 0 s (d) 3 min 20 s
  30. 30.⏱️ A video is 155 seconds long. How long is that in minutes and seconds? (a) 1 min 55 s (b) 2 min 35 s (c) 3 min 35 s (d) 2 min 5 s
  31. 31.⏱️ How many seconds is 5 minutes 9 seconds?
  32. 32.⏱️ A 17-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  33. 33.⏱️ A video is 480 seconds long. How long is that in minutes and seconds? (a) 8 min 30 s (b) 9 min 0 s (c) 4 min 80 s (d) 8 min 0 s
  34. 34.⏱️ How many seconds is 6 minutes 38 seconds?
  35. 35.⏱️ A 16-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  36. 36.⏱️ Your video must be 90 seconds long. Your clips add up to 52 seconds. How many more seconds of video do you need?
  37. 37.⏱️ A video is 215 seconds long. How long is that in minutes and seconds? (a) 2 min 15 s (b) 3 min 5 s (c) 4 min 35 s (d) 3 min 35 s
  38. 38.⏱️ How many seconds is 8 minutes 12 seconds?
  39. 39.⏱️ A 25-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  40. 40.⏱️ Your video must be 60 seconds long. Your clips add up to 48 seconds. How many more seconds of video do you need?

Answer key

  1. 8 min 30 s
  2. the sum of the clips
  3. 72
  4. 27
  5. 44
  6. half as long
  7. 48
  8. 26
  9. 77
  10. 78
  11. 60
  12. 127
  13. 155
  14. 31
  15. 147
  16. 35
  17. 93
  18. 14
  19. 36
  20. 284
  21. 27
  22. 502
  23. 217
  24. 34
  25. 127
  26. 46
  27. 20
  28. 3 min 45 s
  29. 3 min 20 s
  30. 2 min 35 s
  31. 309
  32. 34
  33. 8 min 0 s
  34. 398
  35. 8
  36. 38
  37. 3 min 35 s
  38. 492
  39. 50
  40. 12

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