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Video Editing Worksheet: Video Length

Animation and design lesson 21: Video length sums · Set 68 · 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 are in 1 minute? (a) 100 (b) 10 (c) 30 (d) 60
  2. 2.⏱️ A video is 470 seconds long. How long is that in minutes and seconds? (a) 7 min 20 s (b) 4 min 70 s (c) 7 min 50 s (d) 8 min 50 s
  3. 3.⏱️ Your video must be 60 seconds long. Your clips add up to 40 seconds. How many more seconds of video do you need?
  4. 4.⏱️ A video has three clips of 31, 35 and 35 seconds. How long is the video (in seconds)?
  5. 5.⏱️ A video has three clips of 45, 17 and 34 seconds. How long is the video (in seconds)?
  6. 6.⏱️ A 26-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  7. 7.⏱️ A video has three clips of 47, 15 and 50 seconds. How long is the video (in seconds)?
  8. 8.⏱️ Your video must be 90 seconds long. Your clips add up to 10 seconds. How many more seconds of video do you need?
  9. 9.⏱️ An 18-second clip is sped up to 3× speed. How long does it last now (in seconds)?
  10. 10.⏱️ A video has three clips of 20, 60 and 33 seconds. How long is the video (in seconds)?
  11. 11.⏱️ Your video must be 60 seconds long. Your clips add up to 5 seconds. How many more seconds of video do you need?
  12. 12.⏱️ A 46-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  13. 13.⏱️ How many seconds is 6 minutes 27 seconds?
  14. 14.⏱️ An 18-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  15. 15.⏱️ A video is 230 seconds long. How long is that in minutes and seconds? (a) 3 min 20 s (b) 2 min 30 s (c) 3 min 50 s (d) 4 min 50 s
  16. 16.⏱️ A 36-second clip is sped up to 3× speed. How long does it last now (in seconds)?
  17. 17.⏱️ A 96-second clip is sped up to 4× speed. How long does it last now (in seconds)?
  18. 18.⏱️ A video is 495 seconds long. How long is that in minutes and seconds? (a) 4 min 95 s (b) 9 min 15 s (c) 8 min 45 s (d) 8 min 15 s
  19. 19.⏱️ A 21-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  20. 20.⏱️ Your video must be 60 seconds long. Your clips add up to 51 seconds. How many more seconds of video do you need?
  21. 21.⏱️ When you put clips one after another, the video length is … (a) the sum of the clips (b) always 1 minute (c) the longest clip (d) the shortest clip
  22. 22.⏱️ A video has three clips of 56, 52 and 29 seconds. How long is the video (in seconds)?
  23. 23.⏱️ How many seconds is 3 minutes 37 seconds?
  24. 24.⏱️ A video has three clips of 7, 49 and 46 seconds. How long is the video (in seconds)?
  25. 25.⏱️ Speeding a clip up to 2× makes it … (a) half as long (b) twice as long (c) silent (d) the same length
  26. 26.⏱️ How many seconds is 3 minutes 16 seconds?
  27. 27.⏱️ A video is 555 seconds long. How long is that in minutes and seconds? (a) 5 min 55 s (b) 9 min 45 s (c) 9 min 15 s (d) 10 min 15 s
  28. 28.⏱️ A video has three clips of 7, 56 and 27 seconds. How long is the video (in seconds)?
  29. 29.⏱️ A 78-second clip is sped up to 3× speed. How long does it last now (in seconds)?
  30. 30.⏱️ A video is 590 seconds long. How long is that in minutes and seconds? (a) 5 min 90 s (b) 10 min 50 s (c) 9 min 50 s (d) 9 min 20 s
  31. 31.⏱️ How many seconds is 8 minutes 47 seconds?
  32. 32.⏱️ Your video must be 90 seconds long. Your clips add up to 69 seconds. How many more seconds of video do you need?
  33. 33.⏱️ Your video must be 60 seconds long. Your clips add up to 27 seconds. How many more seconds of video do you need?
  34. 34.⏱️ A video is 265 seconds long. How long is that in minutes and seconds? (a) 4 min 25 s (b) 2 min 65 s (c) 5 min 25 s (d) 4 min 55 s
  35. 35.⏱️ A video has three clips of 55, 34 and 11 seconds. How long is the video (in seconds)?
  36. 36.⏱️ A 5-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  37. 37.⏱️ Your video must be 60 seconds long. Your clips add up to 48 seconds. How many more seconds of video do you need?
  38. 38.⏱️ Your video must be 60 seconds long. Your clips add up to 37 seconds. How many more seconds of video do you need?
  39. 39.⏱️ How many seconds is 8 minutes 29 seconds?
  40. 40.⏱️ A 108-second clip is sped up to 4× speed. How long does it last now (in seconds)?

Answer key

  1. 60
  2. 7 min 50 s
  3. 20
  4. 101
  5. 96
  6. 52
  7. 112
  8. 80
  9. 6
  10. 113
  11. 55
  12. 23
  13. 387
  14. 9
  15. 3 min 50 s
  16. 12
  17. 24
  18. 8 min 15 s
  19. 42
  20. 9
  21. the sum of the clips
  22. 137
  23. 217
  24. 102
  25. half as long
  26. 196
  27. 9 min 15 s
  28. 90
  29. 26
  30. 9 min 50 s
  31. 527
  32. 21
  33. 33
  34. 4 min 25 s
  35. 100
  36. 10
  37. 12
  38. 23
  39. 509
  40. 27

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