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Video Editing Worksheet: Video Length

Animation and design lesson 21: Video length sums · Set 89 · 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) 60 (c) 10 (d) 30
  2. 2.⏱️ How many seconds is 9 minutes 43 seconds?
  3. 3.⏱️ How many seconds is 2 minutes 55 seconds?
  4. 4.⏱️ A video has three clips of 26, 22 and 29 seconds. How long is the video (in seconds)?
  5. 5.⏱️ A video is 120 seconds long. How long is that in minutes and seconds? (a) 1 min 20 s (b) 3 min 0 s (c) 2 min 30 s (d) 2 min 0 s
  6. 6.⏱️ A video has three clips of 31, 38 and 15 seconds. How long is the video (in seconds)?
  7. 7.⏱️ A 50-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  8. 8.⏱️ Speeding a clip up to 2× makes it … (a) the same length (b) twice as long (c) half as long (d) silent
  9. 9.⏱️ A 160-second clip is sped up to 4× speed. How long does it last now (in seconds)?
  10. 10.⏱️ How many seconds is 5 minutes 57 seconds?
  11. 11.⏱️ A 124-second clip is sped up to 4× speed. How long does it last now (in seconds)?
  12. 12.⏱️ When you put clips one after another, the video length is … (a) the longest clip (b) always 1 minute (c) the shortest clip (d) the sum of the clips
  13. 13.⏱️ A video has three clips of 8, 18 and 57 seconds. How long is the video (in seconds)?
  14. 14.⏱️ Your video must be 90 seconds long. Your clips add up to 12 seconds. How many more seconds of video do you need?
  15. 15.⏱️ Your video must be 60 seconds long. Your clips add up to 30 seconds. How many more seconds of video do you need?
  16. 16.⏱️ Your video must be 90 seconds long. Your clips add up to 71 seconds. How many more seconds of video do you need?
  17. 17.⏱️ How many seconds is 8 minutes 44 seconds?
  18. 18.⏱️ A 48-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  19. 19.⏱️ A video is 390 seconds long. How long is that in minutes and seconds? (a) 6 min 0 s (b) 3 min 90 s (c) 6 min 30 s (d) 7 min 30 s
  20. 20.⏱️ A 34-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  21. 21.⏱️ A 54-second clip is sped up to 3× speed. How long does it last now (in seconds)?
  22. 22.⏱️ A video has three clips of 30, 37 and 54 seconds. How long is the video (in seconds)?
  23. 23.⏱️ A 4-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  24. 24.⏱️ A video is 125 seconds long. How long is that in minutes and seconds? (a) 1 min 25 s (b) 3 min 5 s (c) 2 min 35 s (d) 2 min 5 s
  25. 25.⏱️ A video is 505 seconds long. How long is that in minutes and seconds? (a) 5 min 5 s (b) 8 min 25 s (c) 8 min 55 s (d) 9 min 25 s
  26. 26.⏱️ How many seconds is 8 minutes 50 seconds?
  27. 27.⏱️ A video is 195 seconds long. How long is that in minutes and seconds? (a) 3 min 45 s (b) 3 min 15 s (c) 1 min 95 s (d) 4 min 15 s
  28. 28.⏱️ How many seconds is 9 minutes 28 seconds?
  29. 29.⏱️ A video is 320 seconds long. How long is that in minutes and seconds? (a) 6 min 20 s (b) 3 min 20 s (c) 5 min 20 s (d) 5 min 50 s
  30. 30.⏱️ Your video must be 60 seconds long. Your clips add up to 39 seconds. How many more seconds of video do you need?
  31. 31.⏱️ A video has three clips of 38, 21 and 12 seconds. How long is the video (in seconds)?
  32. 32.⏱️ A 16-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  33. 33.⏱️ A 64-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  34. 34.⏱️ A video has three clips of 50, 44 and 51 seconds. How long is the video (in seconds)?
  35. 35.⏱️ How many seconds is 6 minutes 14 seconds?
  36. 36.⏱️ Your video must be 120 seconds long. Your clips add up to 15 seconds. How many more seconds of video do you need?
  37. 37.⏱️ A 10-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  38. 38.⏱️ How many seconds is 7 minutes 24 seconds?
  39. 39.⏱️ A video is 375 seconds long. How long is that in minutes and seconds? (a) 6 min 15 s (b) 7 min 15 s (c) 3 min 75 s (d) 6 min 45 s
  40. 40.⏱️ A 12-second clip is sped up to 2× speed. How long does it last now (in seconds)?

Answer key

  1. 60
  2. 583
  3. 175
  4. 77
  5. 2 min 0 s
  6. 84
  7. 25
  8. half as long
  9. 40
  10. 357
  11. 31
  12. the sum of the clips
  13. 83
  14. 78
  15. 30
  16. 19
  17. 524
  18. 24
  19. 6 min 30 s
  20. 17
  21. 18
  22. 121
  23. 8
  24. 2 min 5 s
  25. 8 min 25 s
  26. 530
  27. 3 min 15 s
  28. 568
  29. 5 min 20 s
  30. 21
  31. 71
  32. 32
  33. 32
  34. 145
  35. 374
  36. 105
  37. 5
  38. 444
  39. 6 min 15 s
  40. 6

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