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Video Editing Worksheet: Video Length

Animation and design lesson 21: Video length sums · Set 34 · 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.⏱️ Speeding a clip up to 2× makes it … (a) silent (b) the same length (c) half as long (d) twice as long
  2. 2.⏱️ How many seconds is 9 minutes 28 seconds?
  3. 3.⏱️ A video has three clips of 6, 56 and 49 seconds. How long is the video (in seconds)?
  4. 4.⏱️ An 18-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  5. 5.⏱️ How many seconds are in 1 minute? (a) 60 (b) 100 (c) 10 (d) 30
  6. 6.⏱️ A 60-second clip is sped up to 4× speed. How long does it last now (in seconds)?
  7. 7.⏱️ How many seconds is 9 minutes 31 seconds?
  8. 8.⏱️ A video has three clips of 14, 10 and 13 seconds. How long is the video (in seconds)?
  9. 9.⏱️ A 44-second clip is sped up to 4× speed. How long does it last now (in seconds)?
  10. 10.⏱️ A video is 175 seconds long. How long is that in minutes and seconds? (a) 3 min 55 s (b) 2 min 55 s (c) 2 min 25 s (d) 1 min 75 s
  11. 11.⏱️ A video is 95 seconds long. How long is that in minutes and seconds? (a) 3 min 35 s (b) 2 min 35 s (c) 1 min 5 s (d) 1 min 35 s
  12. 12.⏱️ A video is 390 seconds long. How long is that in minutes and seconds? (a) 3 min 90 s (b) 6 min 0 s (c) 6 min 30 s (d) 7 min 30 s
  13. 13.⏱️ Your video must be 120 seconds long. Your clips add up to 112 seconds. How many more seconds of video do you need?
  14. 14.⏱️ How many seconds is 5 minutes 44 seconds?
  15. 15.⏱️ A video has three clips of 39, 38 and 50 seconds. How long is the video (in seconds)?
  16. 16.⏱️ A video has three clips of 47, 54 and 57 seconds. How long is the video (in seconds)?
  17. 17.⏱️ How many seconds is 2 minutes 15 seconds?
  18. 18.⏱️ Your video must be 180 seconds long. Your clips add up to 6 seconds. How many more seconds of video do you need?
  19. 19.⏱️ A video has three clips of 44, 29 and 46 seconds. How long is the video (in seconds)?
  20. 20.⏱️ A video has three clips of 46, 41 and 42 seconds. How long is the video (in seconds)?
  21. 21.⏱️ How many seconds is 8 minutes 14 seconds?
  22. 22.⏱️ A video has three clips of 36, 25 and 56 seconds. How long is the video (in seconds)?
  23. 23.⏱️ A video has three clips of 47, 9 and 41 seconds. How long is the video (in seconds)?
  24. 24.⏱️ How many seconds is 7 minutes 16 seconds?
  25. 25.⏱️ A 30-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  26. 26.⏱️ A video has three clips of 27, 16 and 47 seconds. How long is the video (in seconds)?
  27. 27.⏱️ A video is 215 seconds long. How long is that in minutes and seconds? (a) 3 min 5 s (b) 3 min 35 s (c) 4 min 35 s (d) 2 min 15 s
  28. 28.⏱️ A video is 160 seconds long. How long is that in minutes and seconds? (a) 2 min 10 s (b) 3 min 40 s (c) 2 min 40 s (d) 1 min 60 s
  29. 29.⏱️ A video has three clips of 57, 20 and 56 seconds. How long is the video (in seconds)?
  30. 30.⏱️ A 100-second clip is sped up to 4× speed. How long does it last now (in seconds)?
  31. 31.⏱️ Your video must be 60 seconds long. Your clips add up to 43 seconds. How many more seconds of video do you need?
  32. 32.⏱️ A video is 120 seconds long. How long is that in minutes and seconds? (a) 1 min 20 s (b) 2 min 30 s (c) 2 min 0 s (d) 3 min 0 s
  33. 33.⏱️ Your video must be 120 seconds long. Your clips add up to 113 seconds. How many more seconds of video do you need?
  34. 34.⏱️ A 20-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  35. 35.⏱️ Your video must be 90 seconds long. Your clips add up to 39 seconds. How many more seconds of video do you need?
  36. 36.⏱️ How many seconds is 6 minutes 17 seconds?
  37. 37.⏱️ A 156-second clip is sped up to 4× speed. How long does it last now (in seconds)?
  38. 38.⏱️ A video is 345 seconds long. How long is that in minutes and seconds? (a) 3 min 45 s (b) 5 min 15 s (c) 5 min 45 s (d) 6 min 45 s
  39. 39.⏱️ Your video must be 120 seconds long. Your clips add up to 5 seconds. How many more seconds of video do you need?
  40. 40.⏱️ A video has three clips of 9, 13 and 17 seconds. How long is the video (in seconds)?

Answer key

  1. half as long
  2. 568
  3. 111
  4. 36
  5. 60
  6. 15
  7. 571
  8. 37
  9. 11
  10. 2 min 55 s
  11. 1 min 35 s
  12. 6 min 30 s
  13. 8
  14. 344
  15. 127
  16. 158
  17. 135
  18. 174
  19. 119
  20. 129
  21. 494
  22. 117
  23. 97
  24. 436
  25. 60
  26. 90
  27. 3 min 35 s
  28. 2 min 40 s
  29. 133
  30. 25
  31. 17
  32. 2 min 0 s
  33. 7
  34. 40
  35. 51
  36. 377
  37. 39
  38. 5 min 45 s
  39. 115
  40. 39

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