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Video Editing Worksheet: Video Length

Animation and design lesson 21: Video length sums · Set 238 · 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 video has three clips of 26, 6 and 34 seconds. How long is the video (in seconds)?
  2. 2.⏱️ How many seconds is 8 minutes 41 seconds?
  3. 3.⏱️ A 19-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  4. 4.⏱️ Your video must be 90 seconds long. Your clips add up to 24 seconds. How many more seconds of video do you need?
  5. 5.⏱️ A 74-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  6. 6.⏱️ How many seconds are in 1 minute? (a) 10 (b) 100 (c) 60 (d) 30
  7. 7.⏱️ Your video must be 60 seconds long. Your clips add up to 21 seconds. How many more seconds of video do you need?
  8. 8.⏱️ A video has three clips of 51, 11 and 30 seconds. How long is the video (in seconds)?
  9. 9.⏱️ When you put clips one after another, the video length is … (a) always 1 minute (b) the sum of the clips (c) the shortest clip (d) the longest clip
  10. 10.⏱️ How many seconds is 5 minutes 48 seconds?
  11. 11.⏱️ A video is 585 seconds long. How long is that in minutes and seconds? (a) 10 min 45 s (b) 9 min 45 s (c) 5 min 85 s (d) 9 min 15 s
  12. 12.⏱️ A video is 245 seconds long. How long is that in minutes and seconds? (a) 5 min 5 s (b) 4 min 35 s (c) 2 min 45 s (d) 4 min 5 s
  13. 13.⏱️ A video is 75 seconds long. How long is that in minutes and seconds? (a) 1 min 45 s (b) 1 min 15 s (c) 2 min 15 s (d) 3 min 15 s
  14. 14.⏱️ How many seconds is 3 minutes 4 seconds?
  15. 15.⏱️ How many seconds is 1 minute 29 seconds?
  16. 16.⏱️ A 48-second clip is sped up to 4× speed. How long does it last now (in seconds)?
  17. 17.⏱️ A video has three clips of 38, 49 and 14 seconds. How long is the video (in seconds)?
  18. 18.⏱️ A video is 335 seconds long. How long is that in minutes and seconds? (a) 5 min 35 s (b) 5 min 5 s (c) 3 min 35 s (d) 6 min 35 s
  19. 19.⏱️ Your video must be 90 seconds long. Your clips add up to 62 seconds. How many more seconds of video do you need?
  20. 20.⏱️ A 40-second clip is sped up to 4× speed. How long does it last now (in seconds)?
  21. 21.⏱️ A video is 470 seconds long. How long is that in minutes and seconds? (a) 7 min 20 s (b) 7 min 50 s (c) 4 min 70 s (d) 8 min 50 s
  22. 22.⏱️ A 48-second clip is sped up to 3× speed. How long does it last now (in seconds)?
  23. 23.⏱️ A video has three clips of 10, 25 and 56 seconds. How long is the video (in seconds)?
  24. 24.⏱️ How many seconds is 1 minute 22 seconds?
  25. 25.⏱️ A video has three clips of 55, 16 and 13 seconds. How long is the video (in seconds)?
  26. 26.⏱️ A video is 255 seconds long. How long is that in minutes and seconds? (a) 4 min 45 s (b) 2 min 55 s (c) 5 min 15 s (d) 4 min 15 s
  27. 27.⏱️ How many seconds is 3 minutes 34 seconds?
  28. 28.⏱️ Your video must be 120 seconds long. Your clips add up to 27 seconds. How many more seconds of video do you need?
  29. 29.⏱️ A video has three clips of 13, 28 and 36 seconds. How long is the video (in seconds)?
  30. 30.⏱️ A 17-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  31. 31.⏱️ A 16-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  32. 32.⏱️ A 4-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  33. 33.⏱️ A 30-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  34. 34.⏱️ Your video must be 120 seconds long. Your clips add up to 31 seconds. How many more seconds of video do you need?
  35. 35.⏱️ How many seconds is 4 minutes 18 seconds?
  36. 36.⏱️ Your video must be 90 seconds long. Your clips add up to 49 seconds. How many more seconds of video do you need?
  37. 37.⏱️ A video has three clips of 23, 43 and 21 seconds. How long is the video (in seconds)?
  38. 38.⏱️ A video has three clips of 15, 47 and 39 seconds. How long is the video (in seconds)?
  39. 39.⏱️ A 36-second clip is sped up to 3× speed. How long does it last now (in seconds)?
  40. 40.⏱️ A video has three clips of 51, 58 and 13 seconds. How long is the video (in seconds)?

Answer key

  1. 66
  2. 521
  3. 38
  4. 66
  5. 37
  6. 60
  7. 39
  8. 92
  9. the sum of the clips
  10. 348
  11. 9 min 45 s
  12. 4 min 5 s
  13. 1 min 15 s
  14. 184
  15. 89
  16. 12
  17. 101
  18. 5 min 35 s
  19. 28
  20. 10
  21. 7 min 50 s
  22. 16
  23. 91
  24. 82
  25. 84
  26. 4 min 15 s
  27. 214
  28. 93
  29. 77
  30. 34
  31. 8
  32. 8
  33. 60
  34. 89
  35. 258
  36. 41
  37. 87
  38. 101
  39. 12
  40. 122

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