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Video Editing Worksheet: Video Length

Animation and design lesson 21: Video length sums · Set 318 · 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 12, 28 and 44 seconds. How long is the video (in seconds)?
  2. 2.⏱️ Your video must be 180 seconds long. Your clips add up to 51 seconds. How many more seconds of video do you need?
  3. 3.⏱️ How many seconds is 4 minutes 45 seconds?
  4. 4.⏱️ Your video must be 120 seconds long. Your clips add up to 33 seconds. How many more seconds of video do you need?
  5. 5.⏱️ Your video must be 60 seconds long. Your clips add up to 44 seconds. How many more seconds of video do you need?
  6. 6.⏱️ How many seconds is 2 minutes 25 seconds?
  7. 7.⏱️ How many seconds is 1 minute 26 seconds?
  8. 8.⏱️ When you put clips one after another, the video length is … (a) the longest clip (b) the sum of the clips (c) the shortest clip (d) always 1 minute
  9. 9.⏱️ A video is 320 seconds long. How long is that in minutes and seconds? (a) 3 min 20 s (b) 5 min 20 s (c) 5 min 50 s (d) 6 min 20 s
  10. 10.⏱️ A video has three clips of 44, 43 and 7 seconds. How long is the video (in seconds)?
  11. 11.⏱️ How many seconds is 5 minutes 16 seconds?
  12. 12.⏱️ How many seconds is 3 minutes 42 seconds?
  13. 13.⏱️ A video has three clips of 28, 49 and 57 seconds. How long is the video (in seconds)?
  14. 14.⏱️ How many seconds is 2 minutes 53 seconds?
  15. 15.⏱️ A 132-second clip is sped up to 4× speed. How long does it last now (in seconds)?
  16. 16.⏱️ How many seconds are in 1 minute? (a) 60 (b) 10 (c) 30 (d) 100
  17. 17.⏱️ A video has three clips of 40, 55 and 28 seconds. How long is the video (in seconds)?
  18. 18.⏱️ A 7-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  19. 19.⏱️ How many seconds is 9 minutes 29 seconds?
  20. 20.⏱️ A video is 260 seconds long. How long is that in minutes and seconds? (a) 4 min 50 s (b) 2 min 60 s (c) 5 min 20 s (d) 4 min 20 s
  21. 21.⏱️ A video is 550 seconds long. How long is that in minutes and seconds? (a) 10 min 10 s (b) 9 min 10 s (c) 5 min 50 s (d) 9 min 40 s
  22. 22.⏱️ How many seconds is 1 minute 32 seconds?
  23. 23.⏱️ A video has three clips of 10, 53 and 27 seconds. How long is the video (in seconds)?
  24. 24.⏱️ Your video must be 180 seconds long. Your clips add up to 49 seconds. How many more seconds of video do you need?
  25. 25.⏱️ Your video must be 60 seconds long. Your clips add up to 31 seconds. How many more seconds of video do you need?
  26. 26.⏱️ A 13-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  27. 27.⏱️ A video has three clips of 28, 21 and 52 seconds. How long is the video (in seconds)?
  28. 28.⏱️ How many seconds is 9 minutes 41 seconds?
  29. 29.⏱️ A 4-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  30. 30.⏱️ How many seconds is 1 minute 50 seconds?
  31. 31.⏱️ A video is 405 seconds long. How long is that in minutes and seconds? (a) 7 min 45 s (b) 6 min 15 s (c) 4 min 5 s (d) 6 min 45 s
  32. 32.⏱️ A 114-second clip is sped up to 3× speed. How long does it last now (in seconds)?
  33. 33.⏱️ A video is 425 seconds long. How long is that in minutes and seconds? (a) 4 min 25 s (b) 7 min 35 s (c) 8 min 5 s (d) 7 min 5 s
  34. 34.⏱️ Speeding a clip up to 2× makes it … (a) the same length (b) twice as long (c) half as long (d) silent
  35. 35.⏱️ How many seconds is 7 minutes 1 second?
  36. 36.⏱️ A video has three clips of 9, 8 and 38 seconds. How long is the video (in seconds)?
  37. 37.⏱️ How many seconds is 2 minutes 54 seconds?
  38. 38.⏱️ An 18-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  39. 39.⏱️ Your video must be 90 seconds long. Your clips add up to 19 seconds. How many more seconds of video do you need?
  40. 40.⏱️ A video is 270 seconds long. How long is that in minutes and seconds? (a) 5 min 30 s (b) 4 min 0 s (c) 4 min 30 s (d) 2 min 70 s

Answer key

  1. 84
  2. 129
  3. 285
  4. 87
  5. 16
  6. 145
  7. 86
  8. the sum of the clips
  9. 5 min 20 s
  10. 94
  11. 316
  12. 222
  13. 134
  14. 173
  15. 33
  16. 60
  17. 123
  18. 14
  19. 569
  20. 4 min 20 s
  21. 9 min 10 s
  22. 92
  23. 90
  24. 131
  25. 29
  26. 26
  27. 101
  28. 581
  29. 8
  30. 110
  31. 6 min 45 s
  32. 38
  33. 7 min 5 s
  34. half as long
  35. 421
  36. 55
  37. 174
  38. 36
  39. 71
  40. 4 min 30 s

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