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Video Editing Worksheet: Video Length

Animation and design lesson 21: Video length sums · Set 85 · 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.⏱️ When you put clips one after another, the video length is … (a) always 1 minute (b) the longest clip (c) the sum of the clips (d) the shortest clip
  2. 2.⏱️ How many seconds is 3 minutes 52 seconds?
  3. 3.⏱️ A 128-second clip is sped up to 4× speed. How long does it last now (in seconds)?
  4. 4.⏱️ How many seconds is 7 minutes 14 seconds?
  5. 5.⏱️ A video has three clips of 15, 53 and 59 seconds. How long is the video (in seconds)?
  6. 6.⏱️ An 18-second clip is sped up to 3× speed. How long does it last now (in seconds)?
  7. 7.⏱️ A 25-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  8. 8.⏱️ A 26-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  9. 9.⏱️ Speeding a clip up to 2× makes it … (a) the same length (b) silent (c) twice as long (d) half as long
  10. 10.⏱️ How many seconds is 8 minutes 20 seconds?
  11. 11.⏱️ A video has three clips of 51, 43 and 44 seconds. How long is the video (in seconds)?
  12. 12.⏱️ A video is 510 seconds long. How long is that in minutes and seconds? (a) 8 min 30 s (b) 5 min 10 s (c) 8 min 0 s (d) 9 min 30 s
  13. 13.⏱️ A 76-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  14. 14.⏱️ A 21-second clip is sped up to 3× speed. How long does it last now (in seconds)?
  15. 15.⏱️ A 52-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  16. 16.⏱️ Your video must be 90 seconds long. Your clips add up to 43 seconds. How many more seconds of video do you need?
  17. 17.⏱️ How many seconds is 9 minutes 45 seconds?
  18. 18.⏱️ A 19-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  19. 19.⏱️ A video is 590 seconds long. How long is that in minutes and seconds? (a) 5 min 90 s (b) 9 min 20 s (c) 9 min 50 s (d) 10 min 50 s
  20. 20.⏱️ A video is 260 seconds long. How long is that in minutes and seconds? (a) 2 min 60 s (b) 5 min 20 s (c) 4 min 50 s (d) 4 min 20 s
  21. 21.⏱️ How many seconds are in 1 minute? (a) 30 (b) 60 (c) 100 (d) 10
  22. 22.⏱️ How many seconds is 9 minutes 50 seconds?
  23. 23.⏱️ A 12-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  24. 24.⏱️ A 9-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  25. 25.⏱️ A video is 65 seconds long. How long is that in minutes and seconds? (a) 1 min 35 s (b) 2 min 5 s (c) 1 min 5 s (d) 3 min 5 s
  26. 26.⏱️ Your video must be 60 seconds long. Your clips add up to 15 seconds. How many more seconds of video do you need?
  27. 27.⏱️ A 42-second clip is sped up to 3× speed. How long does it last now (in seconds)?
  28. 28.⏱️ How many seconds is 2 minutes 15 seconds?
  29. 29.⏱️ Your video must be 180 seconds long. Your clips add up to 89 seconds. How many more seconds of video do you need?
  30. 30.⏱️ A 63-second clip is sped up to 3× speed. How long does it last now (in seconds)?
  31. 31.⏱️ A 23-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  32. 32.⏱️ How many seconds is 3 minutes 44 seconds?
  33. 33.⏱️ A 56-second clip is sped up to 4× speed. How long does it last now (in seconds)?
  34. 34.⏱️ A video has three clips of 59, 11 and 57 seconds. How long is the video (in seconds)?
  35. 35.⏱️ How many seconds is 8 minutes 21 seconds?
  36. 36.⏱️ A video has three clips of 10, 10 and 16 seconds. How long is the video (in seconds)?
  37. 37.⏱️ A 60-second clip is sped up to 4× speed. How long does it last now (in seconds)?
  38. 38.⏱️ A 30-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  39. 39.⏱️ How many seconds is 9 minutes 12 seconds?
  40. 40.⏱️ How many seconds is 3 minutes 8 seconds?

Answer key

  1. the sum of the clips
  2. 232
  3. 32
  4. 434
  5. 127
  6. 6
  7. 50
  8. 13
  9. half as long
  10. 500
  11. 138
  12. 8 min 30 s
  13. 38
  14. 7
  15. 26
  16. 47
  17. 585
  18. 38
  19. 9 min 50 s
  20. 4 min 20 s
  21. 60
  22. 590
  23. 6
  24. 18
  25. 1 min 5 s
  26. 45
  27. 14
  28. 135
  29. 91
  30. 21
  31. 46
  32. 224
  33. 14
  34. 127
  35. 501
  36. 36
  37. 15
  38. 15
  39. 552
  40. 188

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