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Video Editing Worksheet: Video Length

Animation and design lesson 21: Video length sums · Set 302 · 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.⏱️ How many seconds is 8 minutes 12 seconds?
  2. 2.⏱️ A video has three clips of 22, 26 and 18 seconds. How long is the video (in seconds)?
  3. 3.⏱️ 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 20 s (d) 4 min 50 s
  4. 4.⏱️ A 9-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  5. 5.⏱️ A video is 265 seconds long. How long is that in minutes and seconds? (a) 4 min 55 s (b) 5 min 25 s (c) 4 min 25 s (d) 2 min 65 s
  6. 6.⏱️ Speeding a clip up to 2× makes it … (a) twice as long (b) half as long (c) the same length (d) silent
  7. 7.⏱️ A 12-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  8. 8.⏱️ A 116-second clip is sped up to 4× speed. How long does it last now (in seconds)?
  9. 9.⏱️ A video has three clips of 45, 30 and 48 seconds. How long is the video (in seconds)?
  10. 10.⏱️ How many seconds is 6 minutes 22 seconds?
  11. 11.⏱️ Your video must be 60 seconds long. Your clips add up to 23 seconds. How many more seconds of video do you need?
  12. 12.⏱️ How many seconds is 8 minutes 59 seconds?
  13. 13.⏱️ How many seconds are in 1 minute? (a) 100 (b) 30 (c) 60 (d) 10
  14. 14.⏱️ When you put clips one after another, the video length is … (a) the longest clip (b) the sum of the clips (c) always 1 minute (d) the shortest clip
  15. 15.⏱️ Your video must be 60 seconds long. Your clips add up to 52 seconds. How many more seconds of video do you need?
  16. 16.⏱️ An 18-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  17. 17.⏱️ A video is 495 seconds long. How long is that in minutes and seconds? (a) 8 min 45 s (b) 9 min 15 s (c) 4 min 95 s (d) 8 min 15 s
  18. 18.⏱️ A 14-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  19. 19.⏱️ A 10-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  20. 20.⏱️ A video is 135 seconds long. How long is that in minutes and seconds? (a) 3 min 15 s (b) 2 min 45 s (c) 1 min 35 s (d) 2 min 15 s
  21. 21.⏱️ A video has three clips of 30, 58 and 6 seconds. How long is the video (in seconds)?
  22. 22.⏱️ A video has three clips of 13, 35 and 29 seconds. How long is the video (in seconds)?
  23. 23.⏱️ A 20-second clip is sped up to 4× speed. How long does it last now (in seconds)?
  24. 24.⏱️ A video is 475 seconds long. How long is that in minutes and seconds? (a) 7 min 55 s (b) 8 min 55 s (c) 7 min 25 s (d) 4 min 75 s
  25. 25.⏱️ Your video must be 60 seconds long. Your clips add up to 35 seconds. How many more seconds of video do you need?
  26. 26.⏱️ An 84-second clip is sped up to 4× speed. How long does it last now (in seconds)?
  27. 27.⏱️ A 93-second clip is sped up to 3× speed. How long does it last now (in seconds)?
  28. 28.⏱️ A 148-second clip is sped up to 4× speed. How long does it last now (in seconds)?
  29. 29.⏱️ A 140-second clip is sped up to 4× speed. How long does it last now (in seconds)?
  30. 30.⏱️ A 46-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  31. 31.⏱️ A video has three clips of 9, 42 and 40 seconds. How long is the video (in seconds)?
  32. 32.⏱️ A video is 525 seconds long. How long is that in minutes and seconds? (a) 8 min 15 s (b) 5 min 25 s (c) 8 min 45 s (d) 9 min 45 s
  33. 33.⏱️ A 39-second clip is sped up to 3× speed. How long does it last now (in seconds)?
  34. 34.⏱️ A 36-second clip is sped up to 4× speed. How long does it last now (in seconds)?
  35. 35.⏱️ How many seconds is 7 minutes 34 seconds?
  36. 36.⏱️ How many seconds is 5 minutes 21 seconds?
  37. 37.⏱️ A video has three clips of 52, 28 and 10 seconds. How long is the video (in seconds)?
  38. 38.⏱️ A 30-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  39. 39.⏱️ How many seconds is 7 minutes 15 seconds?
  40. 40.⏱️ A video has three clips of 5, 20 and 37 seconds. How long is the video (in seconds)?

Answer key

  1. 492
  2. 66
  3. 4 min 20 s
  4. 18
  5. 4 min 25 s
  6. half as long
  7. 24
  8. 29
  9. 123
  10. 382
  11. 37
  12. 539
  13. 60
  14. the sum of the clips
  15. 8
  16. 36
  17. 8 min 15 s
  18. 28
  19. 20
  20. 2 min 15 s
  21. 94
  22. 77
  23. 5
  24. 7 min 55 s
  25. 25
  26. 21
  27. 31
  28. 37
  29. 35
  30. 23
  31. 91
  32. 8 min 45 s
  33. 13
  34. 9
  35. 454
  36. 321
  37. 90
  38. 60
  39. 435
  40. 62

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