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Video Editing Worksheet: Video Length

Animation and design lesson 21: Video length sums · Set 172 · 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 32-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  2. 2.⏱️ Your video must be 60 seconds long. Your clips add up to 26 seconds. How many more seconds of video do you need?
  3. 3.⏱️ A video is 125 seconds long. How long is that in minutes and seconds? (a) 1 min 25 s (b) 2 min 5 s (c) 2 min 35 s (d) 3 min 5 s
  4. 4.⏱️ When you put clips one after another, the video length is … (a) the shortest clip (b) always 1 minute (c) the sum of the clips (d) the longest clip
  5. 5.⏱️ A video has three clips of 13, 53 and 34 seconds. How long is the video (in seconds)?
  6. 6.⏱️ A 19-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 43, 32 and 49 seconds. How long is the video (in seconds)?
  8. 8.⏱️ How many seconds is 5 minutes 8 seconds?
  9. 9.⏱️ A video has three clips of 12, 19 and 45 seconds. How long is the video (in seconds)?
  10. 10.⏱️ How many seconds are in 1 minute? (a) 100 (b) 10 (c) 60 (d) 30
  11. 11.⏱️ A video is 380 seconds long. How long is that in minutes and seconds? (a) 7 min 20 s (b) 6 min 20 s (c) 3 min 80 s (d) 6 min 50 s
  12. 12.⏱️ A video is 560 seconds long. How long is that in minutes and seconds? (a) 5 min 60 s (b) 9 min 20 s (c) 9 min 50 s (d) 10 min 20 s
  13. 13.⏱️ A 17-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  14. 14.⏱️ Your video must be 120 seconds long. Your clips add up to 56 seconds. How many more seconds of video do you need?
  15. 15.⏱️ A video has three clips of 9, 32 and 59 seconds. How long is the video (in seconds)?
  16. 16.⏱️ A video has three clips of 43, 40 and 40 seconds. How long is the video (in seconds)?
  17. 17.⏱️ A 30-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  18. 18.⏱️ A video has three clips of 40, 18 and 38 seconds. How long is the video (in seconds)?
  19. 19.⏱️ A video has three clips of 58, 20 and 13 seconds. How long is the video (in seconds)?
  20. 20.⏱️ A video has three clips of 19, 12 and 15 seconds. How long is the video (in seconds)?
  21. 21.⏱️ A 9-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  22. 22.⏱️ A video has three clips of 26, 5 and 52 seconds. How long is the video (in seconds)?
  23. 23.⏱️ How many seconds is 7 minutes 38 seconds?
  24. 24.⏱️ A video has three clips of 6, 27 and 8 seconds. How long is the video (in seconds)?
  25. 25.⏱️ An 11-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  26. 26.⏱️ A 72-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  27. 27.⏱️ A 28-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  28. 28.⏱️ Your video must be 90 seconds long. Your clips add up to 79 seconds. How many more seconds of video do you need?
  29. 29.⏱️ A video is 410 seconds long. How long is that in minutes and seconds? (a) 4 min 10 s (b) 6 min 20 s (c) 7 min 50 s (d) 6 min 50 s
  30. 30.⏱️ A video has three clips of 19, 50 and 20 seconds. How long is the video (in seconds)?
  31. 31.⏱️ A video has three clips of 41, 22 and 5 seconds. How long is the video (in seconds)?
  32. 32.⏱️ A video has three clips of 27, 35 and 15 seconds. How long is the video (in seconds)?
  33. 33.⏱️ A 105-second clip is sped up to 3× speed. How long does it last now (in seconds)?
  34. 34.⏱️ Your video must be 180 seconds long. Your clips add up to 6 seconds. How many more seconds of video do you need?
  35. 35.⏱️ A video has three clips of 36, 13 and 33 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.⏱️ Speeding a clip up to 2× makes it … (a) silent (b) the same length (c) twice as long (d) half as long
  38. 38.⏱️ How many seconds is 7 minutes 4 seconds?
  39. 39.⏱️ How many seconds is 9 minutes 6 seconds?
  40. 40.⏱️ A video has three clips of 50, 46 and 15 seconds. How long is the video (in seconds)?

Answer key

  1. 16
  2. 34
  3. 2 min 5 s
  4. the sum of the clips
  5. 100
  6. 38
  7. 124
  8. 308
  9. 76
  10. 60
  11. 6 min 20 s
  12. 9 min 20 s
  13. 34
  14. 64
  15. 100
  16. 123
  17. 15
  18. 96
  19. 91
  20. 46
  21. 18
  22. 83
  23. 458
  24. 41
  25. 22
  26. 36
  27. 56
  28. 11
  29. 6 min 50 s
  30. 89
  31. 68
  32. 77
  33. 35
  34. 174
  35. 82
  36. 42
  37. half as long
  38. 424
  39. 546
  40. 111

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