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Video Editing Worksheet: Video Length

Animation and design lesson 21: Video length sums · Set 119 · 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.⏱️ Your video must be 180 seconds long. Your clips add up to 92 seconds. How many more seconds of video do you need?
  2. 2.⏱️ Your video must be 180 seconds long. Your clips add up to 160 seconds. How many more seconds of video do you need?
  3. 3.⏱️ A video is 270 seconds long. How long is that in minutes and seconds? (a) 2 min 70 s (b) 5 min 30 s (c) 4 min 30 s (d) 4 min 0 s
  4. 4.⏱️ A video is 460 seconds long. How long is that in minutes and seconds? (a) 7 min 10 s (b) 8 min 40 s (c) 4 min 60 s (d) 7 min 40 s
  5. 5.⏱️ Speeding a clip up to 2× makes it … (a) the same length (b) half as long (c) twice as long (d) silent
  6. 6.⏱️ A video is 145 seconds long. How long is that in minutes and seconds? (a) 3 min 25 s (b) 2 min 55 s (c) 1 min 45 s (d) 2 min 25 s
  7. 7.⏱️ A 27-second clip is sped up to 3× speed. How long does it last now (in seconds)?
  8. 8.⏱️ A 15-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  9. 9.⏱️ How many seconds is 1 minute 19 seconds?
  10. 10.⏱️ A 124-second clip is sped up to 4× speed. How long does it last now (in seconds)?
  11. 11.⏱️ A 68-second clip is sped up to 4× speed. How long does it last now (in seconds)?
  12. 12.⏱️ A 25-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  13. 13.⏱️ Your video must be 120 seconds long. Your clips add up to 76 seconds. How many more seconds of video do you need?
  14. 14.⏱️ A 20-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  15. 15.⏱️ 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
  16. 16.⏱️ How many seconds are in 1 minute? (a) 30 (b) 60 (c) 100 (d) 10
  17. 17.⏱️ A 22-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  18. 18.⏱️ A video has three clips of 60, 18 and 14 seconds. How long is the video (in seconds)?
  19. 19.⏱️ How many seconds is 8 minutes 45 seconds?
  20. 20.⏱️ A video is 555 seconds long. How long is that in minutes and seconds? (a) 10 min 15 s (b) 5 min 55 s (c) 9 min 15 s (d) 9 min 45 s
  21. 21.⏱️ A video has three clips of 7, 39 and 16 seconds. How long is the video (in seconds)?
  22. 22.⏱️ Your video must be 60 seconds long. Your clips add up to 18 seconds. How many more seconds of video do you need?
  23. 23.⏱️ Your video must be 60 seconds long. Your clips add up to 13 seconds. How many more seconds of video do you need?
  24. 24.⏱️ How many seconds is 3 minutes 37 seconds?
  25. 25.⏱️ How many seconds is 6 minutes 47 seconds?
  26. 26.⏱️ A video is 530 seconds long. How long is that in minutes and seconds? (a) 5 min 30 s (b) 8 min 50 s (c) 9 min 50 s (d) 8 min 20 s
  27. 27.⏱️ Your video must be 90 seconds long. Your clips add up to 25 seconds. How many more seconds of video do you need?
  28. 28.⏱️ Your video must be 90 seconds long. Your clips add up to 52 seconds. How many more seconds of video do you need?
  29. 29.⏱️ A video is 580 seconds long. How long is that in minutes and seconds? (a) 9 min 10 s (b) 5 min 80 s (c) 10 min 40 s (d) 9 min 40 s
  30. 30.⏱️ A video has three clips of 41, 23 and 21 seconds. How long is the video (in seconds)?
  31. 31.⏱️ A video is 465 seconds long. How long is that in minutes and seconds? (a) 8 min 45 s (b) 4 min 65 s (c) 7 min 45 s (d) 7 min 15 s
  32. 32.⏱️ A video is 265 seconds long. How long is that in minutes and seconds? (a) 4 min 25 s (b) 4 min 55 s (c) 2 min 65 s (d) 5 min 25 s
  33. 33.⏱️ A video has three clips of 52, 32 and 7 seconds. How long is the video (in seconds)?
  34. 34.⏱️ Your video must be 120 seconds long. Your clips add up to 31 seconds. How many more seconds of video do you need?
  35. 35.⏱️ A 14-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  36. 36.⏱️ A video is 90 seconds long. How long is that in minutes and seconds? (a) 2 min 30 s (b) 1 min 0 s (c) 1 min 30 s (d) 3 min 30 s
  37. 37.⏱️ Your video must be 120 seconds long. Your clips add up to 103 seconds. How many more seconds of video do you need?
  38. 38.⏱️ How many seconds is 9 minutes 30 seconds?
  39. 39.⏱️ A video has three clips of 34, 12 and 10 seconds. How long is the video (in seconds)?
  40. 40.⏱️ An 8-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?

Answer key

  1. 88
  2. 20
  3. 4 min 30 s
  4. 7 min 40 s
  5. half as long
  6. 2 min 25 s
  7. 9
  8. 30
  9. 79
  10. 31
  11. 17
  12. 50
  13. 44
  14. 40
  15. the sum of the clips
  16. 60
  17. 44
  18. 92
  19. 525
  20. 9 min 15 s
  21. 62
  22. 42
  23. 47
  24. 217
  25. 407
  26. 8 min 50 s
  27. 65
  28. 38
  29. 9 min 40 s
  30. 85
  31. 7 min 45 s
  32. 4 min 25 s
  33. 91
  34. 89
  35. 28
  36. 1 min 30 s
  37. 17
  38. 570
  39. 56
  40. 16

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