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Video Editing Worksheet: Video Length

Animation and design lesson 21: Video length sums · Set 275 · 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 144-second clip is sped up to 4× speed. How long does it last now (in seconds)?
  2. 2.⏱️ A video has three clips of 43, 53 and 35 seconds. How long is the video (in seconds)?
  3. 3.⏱️ A video has three clips of 11, 58 and 6 seconds. How long is the video (in seconds)?
  4. 4.⏱️ How many seconds is 6 minutes 42 seconds?
  5. 5.⏱️ A video is 80 seconds long. How long is that in minutes and seconds? (a) 1 min 50 s (b) 3 min 20 s (c) 1 min 20 s (d) 2 min 20 s
  6. 6.⏱️ Your video must be 60 seconds long. Your clips add up to 24 seconds. How many more seconds of video do you need?
  7. 7.⏱️ A 24-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  8. 8.⏱️ When you put clips one after another, the video length is … (a) the longest clip (b) the shortest clip (c) always 1 minute (d) the sum of the clips
  9. 9.⏱️ A 120-second clip is sped up to 3× speed. How long does it last now (in seconds)?
  10. 10.⏱️ Speeding a clip up to 2× makes it … (a) silent (b) twice as long (c) half as long (d) the same length
  11. 11.⏱️ How many seconds are in 1 minute? (a) 30 (b) 60 (c) 10 (d) 100
  12. 12.⏱️ A video is 305 seconds long. How long is that in minutes and seconds? (a) 5 min 35 s (b) 5 min 5 s (c) 6 min 5 s (d) 3 min 5 s
  13. 13.⏱️ A video is 145 seconds long. How long is that in minutes and seconds? (a) 1 min 45 s (b) 3 min 25 s (c) 2 min 55 s (d) 2 min 25 s
  14. 14.⏱️ A 69-second clip is sped up to 3× speed. How long does it last now (in seconds)?
  15. 15.⏱️ A 58-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  16. 16.⏱️ Your video must be 60 seconds long. Your clips add up to 18 seconds. How many more seconds of video do you need?
  17. 17.⏱️ Your video must be 90 seconds long. Your clips add up to 45 seconds. How many more seconds of video do you need?
  18. 18.⏱️ A 4-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  19. 19.⏱️ A video has three clips of 33, 21 and 50 seconds. How long is the video (in seconds)?
  20. 20.⏱️ Your video must be 90 seconds long. Your clips add up to 32 seconds. How many more seconds of video do you need?
  21. 21.⏱️ How many seconds is 6 minutes 8 seconds?
  22. 22.⏱️ Your video must be 120 seconds long. Your clips add up to 106 seconds. How many more seconds of video do you need?
  23. 23.⏱️ How many seconds is 3 minutes 10 seconds?
  24. 24.⏱️ A 27-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  25. 25.⏱️ A video has three clips of 17, 38 and 12 seconds. How long is the video (in seconds)?
  26. 26.⏱️ Your video must be 120 seconds long. Your clips add up to 67 seconds. How many more seconds of video do you need?
  27. 27.⏱️ A 22-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  28. 28.⏱️ How many seconds is 9 minutes 51 seconds?
  29. 29.⏱️ A video has three clips of 47, 59 and 34 seconds. How long is the video (in seconds)?
  30. 30.⏱️ A video has three clips of 31, 13 and 14 seconds. How long is the video (in seconds)?
  31. 31.⏱️ Your video must be 60 seconds long. Your clips add up to 8 seconds. How many more seconds of video do you need?
  32. 32.⏱️ A video is 275 seconds long. How long is that in minutes and seconds? (a) 4 min 35 s (b) 5 min 35 s (c) 2 min 75 s (d) 4 min 5 s
  33. 33.⏱️ Your video must be 60 seconds long. Your clips add up to 14 seconds. How many more seconds of video do you need?
  34. 34.⏱️ Your video must be 180 seconds long. Your clips add up to 78 seconds. How many more seconds of video do you need?
  35. 35.⏱️ A video has three clips of 36, 7 and 7 seconds. How long is the video (in seconds)?
  36. 36.⏱️ A 21-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  37. 37.⏱️ A video is 445 seconds long. How long is that in minutes and seconds? (a) 7 min 55 s (b) 4 min 45 s (c) 7 min 25 s (d) 8 min 25 s
  38. 38.⏱️ How many seconds is 4 minutes 47 seconds?
  39. 39.⏱️ A 28-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  40. 40.⏱️ A 30-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?

Answer key

  1. 36
  2. 131
  3. 75
  4. 402
  5. 1 min 20 s
  6. 36
  7. 48
  8. the sum of the clips
  9. 40
  10. half as long
  11. 60
  12. 5 min 5 s
  13. 2 min 25 s
  14. 23
  15. 29
  16. 42
  17. 45
  18. 8
  19. 104
  20. 58
  21. 368
  22. 14
  23. 190
  24. 54
  25. 67
  26. 53
  27. 44
  28. 591
  29. 140
  30. 58
  31. 52
  32. 4 min 35 s
  33. 46
  34. 102
  35. 50
  36. 42
  37. 7 min 25 s
  38. 287
  39. 14
  40. 60

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