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Video Editing Worksheet: Video Length

Animation and design lesson 21: Video length sums · Set 330 · 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 4 minutes 16 seconds?
  2. 2.⏱️ A 3-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  3. 3.⏱️ A video has three clips of 59, 45 and 49 seconds. How long is the video (in seconds)?
  4. 4.⏱️ Your video must be 120 seconds long. Your clips add up to 66 seconds. How many more seconds of video do you need?
  5. 5.⏱️ A video has three clips of 27, 9 and 21 seconds. How long is the video (in seconds)?
  6. 6.⏱️ A video is 75 seconds long. How long is that in minutes and seconds? (a) 1 min 15 s (b) 1 min 45 s (c) 3 min 15 s (d) 2 min 15 s
  7. 7.⏱️ How many seconds is 2 minutes 17 seconds?
  8. 8.⏱️ A 28-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  9. 9.⏱️ Your video must be 180 seconds long. Your clips add up to 51 seconds. How many more seconds of video do you need?
  10. 10.⏱️ How many seconds is 7 minutes 46 seconds?
  11. 11.⏱️ A 26-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  12. 12.⏱️ When you put clips one after another, the video length is … (a) the shortest clip (b) the sum of the clips (c) the longest clip (d) always 1 minute
  13. 13.⏱️ Your video must be 90 seconds long. Your clips add up to 71 seconds. How many more seconds of video do you need?
  14. 14.⏱️ A 104-second clip is sped up to 4× speed. How long does it last now (in seconds)?
  15. 15.⏱️ A video is 395 seconds long. How long is that in minutes and seconds? (a) 6 min 35 s (b) 6 min 5 s (c) 3 min 95 s (d) 7 min 35 s
  16. 16.⏱️ A video has three clips of 6, 28 and 19 seconds. How long is the video (in seconds)?
  17. 17.⏱️ Your video must be 90 seconds long. Your clips add up to 39 seconds. How many more seconds of video do you need?
  18. 18.⏱️ A video has three clips of 17, 19 and 19 seconds. How long is the video (in seconds)?
  19. 19.⏱️ A 24-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  20. 20.⏱️ Your video must be 120 seconds long. Your clips add up to 51 seconds. How many more seconds of video do you need?
  21. 21.⏱️ A video is 285 seconds long. How long is that in minutes and seconds? (a) 5 min 45 s (b) 4 min 45 s (c) 4 min 15 s (d) 2 min 85 s
  22. 22.⏱️ A 27-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  23. 23.⏱️ How many seconds is 2 minutes 39 seconds?
  24. 24.⏱️ How many seconds is 2 minutes 56 seconds?
  25. 25.⏱️ Speeding a clip up to 2× makes it … (a) the same length (b) silent (c) half as long (d) twice as long
  26. 26.⏱️ A video has three clips of 31, 15 and 16 seconds. How long is the video (in seconds)?
  27. 27.⏱️ How many seconds are in 1 minute? (a) 30 (b) 60 (c) 10 (d) 100
  28. 28.⏱️ A video has three clips of 14, 15 and 19 seconds. How long is the video (in seconds)?
  29. 29.⏱️ A 114-second clip is sped up to 3× speed. How long does it last now (in seconds)?
  30. 30.⏱️ How many seconds is 5 minutes 11 seconds?
  31. 31.⏱️ A 54-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  32. 32.⏱️ A 32-second clip is sped up to 4× speed. How long does it last now (in seconds)?
  33. 33.⏱️ A video has three clips of 55, 51 and 58 seconds. How long is the video (in seconds)?
  34. 34.⏱️ A video is 530 seconds long. How long is that in minutes and seconds? (a) 8 min 20 s (b) 9 min 50 s (c) 8 min 50 s (d) 5 min 30 s
  35. 35.⏱️ A 15-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  36. 36.⏱️ A video is 235 seconds long. How long is that in minutes and seconds? (a) 2 min 35 s (b) 4 min 55 s (c) 3 min 25 s (d) 3 min 55 s
  37. 37.⏱️ Your video must be 180 seconds long. Your clips add up to 76 seconds. How many more seconds of video do you need?
  38. 38.⏱️ Your video must be 60 seconds long. Your clips add up to 5 seconds. How many more seconds of video do you need?
  39. 39.⏱️ A video has three clips of 15, 20 and 40 seconds. How long is the video (in seconds)?
  40. 40.⏱️ A 156-second clip is sped up to 4× speed. How long does it last now (in seconds)?

Answer key

  1. 256
  2. 6
  3. 153
  4. 54
  5. 57
  6. 1 min 15 s
  7. 137
  8. 56
  9. 129
  10. 466
  11. 52
  12. the sum of the clips
  13. 19
  14. 26
  15. 6 min 35 s
  16. 53
  17. 51
  18. 55
  19. 48
  20. 69
  21. 4 min 45 s
  22. 54
  23. 159
  24. 176
  25. half as long
  26. 62
  27. 60
  28. 48
  29. 38
  30. 311
  31. 27
  32. 8
  33. 164
  34. 8 min 50 s
  35. 30
  36. 3 min 55 s
  37. 104
  38. 55
  39. 75
  40. 39

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