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Video Editing Worksheet: Video Length

Animation and design lesson 21: Video length sums · Set 149 · 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 19-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  2. 2.⏱️ A 60-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  3. 3.⏱️ A video has three clips of 6, 27 and 35 seconds. How long is the video (in seconds)?
  4. 4.⏱️ A 16-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  5. 5.⏱️ How many seconds is 9 minutes 1 second?
  6. 6.⏱️ A 25-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  7. 7.⏱️ A 72-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  8. 8.⏱️ How many seconds are in 1 minute? (a) 100 (b) 30 (c) 10 (d) 60
  9. 9.⏱️ A video has three clips of 38, 44 and 35 seconds. How long is the video (in seconds)?
  10. 10.⏱️ When you put clips one after another, the video length is … (a) always 1 minute (b) the shortest clip (c) the sum of the clips (d) the longest clip
  11. 11.⏱️ How many seconds is 8 minutes 45 seconds?
  12. 12.⏱️ A video has three clips of 25, 12 and 31 seconds. How long is the video (in seconds)?
  13. 13.⏱️ A 28-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 14 seconds. How many more seconds of video do you need?
  15. 15.⏱️ How many seconds is 1 minute 20 seconds?
  16. 16.⏱️ How many seconds is 6 minutes 34 seconds?
  17. 17.⏱️ A video is 95 seconds long. How long is that in minutes and seconds? (a) 1 min 5 s (b) 3 min 35 s (c) 2 min 35 s (d) 1 min 35 s
  18. 18.⏱️ A 27-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  19. 19.⏱️ A video is 435 seconds long. How long is that in minutes and seconds? (a) 7 min 45 s (b) 8 min 15 s (c) 7 min 15 s (d) 4 min 35 s
  20. 20.⏱️ A 38-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  21. 21.⏱️ A 24-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  22. 22.⏱️ An 18-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  23. 23.⏱️ A 13-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  24. 24.⏱️ An 11-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  25. 25.⏱️ Your video must be 60 seconds long. Your clips add up to 52 seconds. How many more seconds of video do you need?
  26. 26.⏱️ Speeding a clip up to 2× makes it … (a) twice as long (b) the same length (c) silent (d) half as long
  27. 27.⏱️ How many seconds is 4 minutes 34 seconds?
  28. 28.⏱️ Your video must be 60 seconds long. Your clips add up to 8 seconds. How many more seconds of video do you need?
  29. 29.⏱️ Your video must be 180 seconds long. Your clips add up to 100 seconds. How many more seconds of video do you need?
  30. 30.⏱️ A video has three clips of 6, 55 and 54 seconds. How long is the video (in seconds)?
  31. 31.⏱️ A 128-second clip is sped up to 4× speed. How long does it last now (in seconds)?
  32. 32.⏱️ A video has three clips of 12, 32 and 57 seconds. How long is the video (in seconds)?
  33. 33.⏱️ A 96-second clip is sped up to 4× speed. How long does it last now (in seconds)?
  34. 34.⏱️ A 108-second clip is sped up to 3× speed. How long does it last now (in seconds)?
  35. 35.⏱️ How many seconds is 3 minutes 42 seconds?
  36. 36.⏱️ A 45-second clip is sped up to 3× speed. How long does it last now (in seconds)?
  37. 37.⏱️ A video is 365 seconds long. How long is that in minutes and seconds? (a) 7 min 5 s (b) 6 min 35 s (c) 6 min 5 s (d) 3 min 65 s
  38. 38.⏱️ Your video must be 60 seconds long. Your clips add up to 55 seconds. How many more seconds of video do you need?
  39. 39.⏱️ How many seconds is 9 minutes 8 seconds?
  40. 40.⏱️ Your video must be 180 seconds long. Your clips add up to 22 seconds. How many more seconds of video do you need?

Answer key

  1. 38
  2. 30
  3. 68
  4. 32
  5. 541
  6. 50
  7. 36
  8. 60
  9. 117
  10. the sum of the clips
  11. 525
  12. 68
  13. 56
  14. 106
  15. 80
  16. 394
  17. 1 min 35 s
  18. 54
  19. 7 min 15 s
  20. 19
  21. 48
  22. 36
  23. 26
  24. 22
  25. 8
  26. half as long
  27. 274
  28. 52
  29. 80
  30. 115
  31. 32
  32. 101
  33. 24
  34. 36
  35. 222
  36. 15
  37. 6 min 5 s
  38. 5
  39. 548
  40. 158

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