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Video Editing Worksheet: Video Length

Animation and design lesson 21: Video length sums · Set 329 · 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 160-second clip is sped up to 4× speed. How long does it last now (in seconds)?
  2. 2.⏱️ How many seconds is 7 minutes 12 seconds?
  3. 3.⏱️ A video has three clips of 46, 27 and 41 seconds. How long is the video (in seconds)?
  4. 4.⏱️ How many seconds are in 1 minute? (a) 10 (b) 100 (c) 30 (d) 60
  5. 5.⏱️ A 10-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  6. 6.⏱️ Your video must be 180 seconds long. Your clips add up to 126 seconds. How many more seconds of video do you need?
  7. 7.⏱️ A 20-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  8. 8.⏱️ Your video must be 90 seconds long. Your clips add up to 81 seconds. How many more seconds of video do you need?
  9. 9.⏱️ How many seconds is 9 minutes 55 seconds?
  10. 10.⏱️ How many seconds is 1 minute 32 seconds?
  11. 11.⏱️ Speeding a clip up to 2× makes it … (a) the same length (b) half as long (c) twice as long (d) silent
  12. 12.⏱️ A 17-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  13. 13.⏱️ A 66-second clip is sped up to 3× speed. How long does it last now (in seconds)?
  14. 14.⏱️ How many seconds is 2 minutes 49 seconds?
  15. 15.⏱️ A video is 430 seconds long. How long is that in minutes and seconds? (a) 7 min 10 s (b) 4 min 30 s (c) 7 min 40 s (d) 8 min 10 s
  16. 16.⏱️ A 19-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  17. 17.⏱️ How many seconds is 4 minutes 30 seconds?
  18. 18.⏱️ Your video must be 180 seconds long. Your clips add up to 22 seconds. How many more seconds of video do you need?
  19. 19.⏱️ 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
  20. 20.⏱️ A 27-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  21. 21.⏱️ A 108-second clip is sped up to 4× speed. How long does it last now (in seconds)?
  22. 22.⏱️ A video has three clips of 24, 36 and 45 seconds. How long is the video (in seconds)?
  23. 23.⏱️ A 30-second clip is sped up to 3× speed. How long does it last now (in seconds)?
  24. 24.⏱️ A 28-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  25. 25.⏱️ A 14-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  26. 26.⏱️ A video has three clips of 12, 13 and 5 seconds. How long is the video (in seconds)?
  27. 27.⏱️ A video has three clips of 17, 33 and 6 seconds. How long is the video (in seconds)?
  28. 28.⏱️ An 11-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  29. 29.⏱️ A video has three clips of 40, 37 and 23 seconds. How long is the video (in seconds)?
  30. 30.⏱️ A 68-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  31. 31.⏱️ How many seconds is 7 minutes 38 seconds?
  32. 32.⏱️ Your video must be 60 seconds long. Your clips add up to 52 seconds. How many more seconds of video do you need?
  33. 33.⏱️ A video is 560 seconds long. How long is that in minutes and seconds? (a) 5 min 60 s (b) 10 min 20 s (c) 9 min 50 s (d) 9 min 20 s
  34. 34.⏱️ Your video must be 90 seconds long. Your clips add up to 49 seconds. How many more seconds of video do you need?
  35. 35.⏱️ A 21-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  36. 36.⏱️ A 20-second clip is sped up to 4× speed. How long does it last now (in seconds)?
  37. 37.⏱️ A 24-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  38. 38.⏱️ Your video must be 180 seconds long. Your clips add up to 150 seconds. How many more seconds of video do you need?
  39. 39.⏱️ A video is 420 seconds long. How long is that in minutes and seconds? (a) 8 min 0 s (b) 7 min 30 s (c) 4 min 20 s (d) 7 min 0 s
  40. 40.⏱️ A 24-second clip is sped up to 4× speed. How long does it last now (in seconds)?

Answer key

  1. 40
  2. 432
  3. 114
  4. 60
  5. 20
  6. 54
  7. 40
  8. 9
  9. 595
  10. 92
  11. half as long
  12. 34
  13. 22
  14. 169
  15. 7 min 10 s
  16. 38
  17. 270
  18. 158
  19. the sum of the clips
  20. 54
  21. 27
  22. 105
  23. 10
  24. 56
  25. 7
  26. 30
  27. 56
  28. 22
  29. 100
  30. 34
  31. 458
  32. 8
  33. 9 min 20 s
  34. 41
  35. 42
  36. 5
  37. 12
  38. 30
  39. 7 min 0 s
  40. 6

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