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Video Editing Worksheet: Video Length

Animation and design lesson 21: Video length sums · Set 248 · 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.⏱️ Your video must be 90 seconds long. Your clips add up to 53 seconds. How many more seconds of video do you need?
  2. 2.⏱️ A video is 230 seconds long. How long is that in minutes and seconds? (a) 3 min 20 s (b) 3 min 50 s (c) 2 min 30 s (d) 4 min 50 s
  3. 3.⏱️ A video has three clips of 28, 57 and 15 seconds. How long is the video (in seconds)?
  4. 4.⏱️ A video is 235 seconds long. How long is that in minutes and seconds? (a) 3 min 25 s (b) 4 min 55 s (c) 2 min 35 s (d) 3 min 55 s
  5. 5.⏱️ A video has three clips of 28, 26 and 45 seconds. How long is the video (in seconds)?
  6. 6.⏱️ Your video must be 120 seconds long. Your clips add up to 115 seconds. How many more seconds of video do you need?
  7. 7.⏱️ Speeding a clip up to 2× makes it … (a) half as long (b) twice as long (c) the same length (d) silent
  8. 8.⏱️ How many seconds are in 1 minute? (a) 30 (b) 100 (c) 10 (d) 60
  9. 9.⏱️ How many seconds is 8 minutes 30 seconds?
  10. 10.⏱️ A video has three clips of 27, 48 and 5 seconds. How long is the video (in seconds)?
  11. 11.⏱️ A 22-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  12. 12.⏱️ Your video must be 60 seconds long. Your clips add up to 12 seconds. How many more seconds of video do you need?
  13. 13.⏱️ How many seconds is 5 minutes 22 seconds?
  14. 14.⏱️ 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
  15. 15.⏱️ A 116-second clip is sped up to 4× speed. How long does it last now (in seconds)?
  16. 16.⏱️ A video has three clips of 17, 24 and 57 seconds. How long is the video (in seconds)?
  17. 17.⏱️ A video is 165 seconds long. How long is that in minutes and seconds? (a) 3 min 45 s (b) 1 min 65 s (c) 2 min 15 s (d) 2 min 45 s
  18. 18.⏱️ How many seconds is 9 minutes 9 seconds?
  19. 19.⏱️ A 4-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  20. 20.⏱️ Your video must be 180 seconds long. Your clips add up to 120 seconds. How many more seconds of video do you need?
  21. 21.⏱️ A 76-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  22. 22.⏱️ How many seconds is 2 minutes 15 seconds?
  23. 23.⏱️ A 60-second clip is sped up to 4× speed. How long does it last now (in seconds)?
  24. 24.⏱️ A video is 490 seconds long. How long is that in minutes and seconds? (a) 4 min 90 s (b) 9 min 10 s (c) 8 min 10 s (d) 8 min 40 s
  25. 25.⏱️ A video has three clips of 11, 22 and 22 seconds. How long is the video (in seconds)?
  26. 26.⏱️ How many seconds is 5 minutes 15 seconds?
  27. 27.⏱️ A video has three clips of 40, 20 and 36 seconds. How long is the video (in seconds)?
  28. 28.⏱️ A 10-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  29. 29.⏱️ A 23-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  30. 30.⏱️ How many seconds is 8 minutes 15 seconds?
  31. 31.⏱️ A 22-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  32. 32.⏱️ How many seconds is 3 minutes 6 seconds?
  33. 33.⏱️ A 30-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  34. 34.⏱️ A video is 325 seconds long. How long is that in minutes and seconds? (a) 3 min 25 s (b) 5 min 25 s (c) 5 min 55 s (d) 6 min 25 s
  35. 35.⏱️ A video is 510 seconds long. How long is that in minutes and seconds? (a) 5 min 10 s (b) 9 min 30 s (c) 8 min 30 s (d) 8 min 0 s
  36. 36.⏱️ Your video must be 60 seconds long. Your clips add up to 23 seconds. How many more seconds of video do you need?
  37. 37.⏱️ A 104-second clip is sped up to 4× speed. How long does it last now (in seconds)?
  38. 38.⏱️ A 20-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  39. 39.⏱️ A video has three clips of 48, 25 and 29 seconds. How long is the video (in seconds)?
  40. 40.⏱️ How many seconds is 9 minutes 13 seconds?

Answer key

  1. 37
  2. 3 min 50 s
  3. 100
  4. 3 min 55 s
  5. 99
  6. 5
  7. half as long
  8. 60
  9. 510
  10. 80
  11. 44
  12. 48
  13. 322
  14. the sum of the clips
  15. 29
  16. 98
  17. 2 min 45 s
  18. 549
  19. 8
  20. 60
  21. 38
  22. 135
  23. 15
  24. 8 min 10 s
  25. 55
  26. 315
  27. 96
  28. 5
  29. 46
  30. 495
  31. 11
  32. 186
  33. 60
  34. 5 min 25 s
  35. 8 min 30 s
  36. 37
  37. 26
  38. 40
  39. 102
  40. 553

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