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Video Editing Worksheet: Video Length

Animation and design lesson 21: Video length sums · Set 173 · 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 120 seconds long. Your clips add up to 36 seconds. How many more seconds of video do you need?
  2. 2.⏱️ A video is 590 seconds long. How long is that in minutes and seconds? (a) 9 min 50 s (b) 5 min 90 s (c) 10 min 50 s (d) 9 min 20 s
  3. 3.⏱️ A video has three clips of 57, 55 and 58 seconds. How long is the video (in seconds)?
  4. 4.⏱️ A 44-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  5. 5.⏱️ A video is 245 seconds long. How long is that in minutes and seconds? (a) 4 min 35 s (b) 2 min 45 s (c) 4 min 5 s (d) 5 min 5 s
  6. 6.⏱️ How many seconds is 4 minutes 16 seconds?
  7. 7.⏱️ A 24-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  8. 8.⏱️ A video is 100 seconds long. How long is that in minutes and seconds? (a) 1 min 0 s (b) 2 min 40 s (c) 1 min 10 s (d) 1 min 40 s
  9. 9.⏱️ How many seconds is 4 minutes 46 seconds?
  10. 10.⏱️ How many seconds is 7 minutes 7 seconds?
  11. 11.⏱️ A 9-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  12. 12.⏱️ Your video must be 180 seconds long. Your clips add up to 121 seconds. How many more seconds of video do you need?
  13. 13.⏱️ A 105-second clip is sped up to 3× speed. How long does it last now (in seconds)?
  14. 14.⏱️ How many seconds are in 1 minute? (a) 60 (b) 10 (c) 100 (d) 30
  15. 15.⏱️ A video has three clips of 38, 31 and 31 seconds. How long is the video (in seconds)?
  16. 16.⏱️ Your video must be 60 seconds long. Your clips add up to 23 seconds. How many more seconds of video do you need?
  17. 17.⏱️ Your video must be 120 seconds long. Your clips add up to 82 seconds. How many more seconds of video do you need?
  18. 18.⏱️ How many seconds is 2 minutes 3 seconds?
  19. 19.⏱️ A video is 505 seconds long. How long is that in minutes and seconds? (a) 9 min 25 s (b) 8 min 55 s (c) 5 min 5 s (d) 8 min 25 s
  20. 20.⏱️ When you put clips one after another, the video length is … (a) the longest clip (b) always 1 minute (c) the shortest clip (d) the sum of the clips
  21. 21.⏱️ A 152-second clip is sped up to 4× speed. How long does it last now (in seconds)?
  22. 22.⏱️ A video has three clips of 51, 38 and 21 seconds. How long is the video (in seconds)?
  23. 23.⏱️ A 96-second clip is sped up to 3× speed. How long does it last now (in seconds)?
  24. 24.⏱️ A 20-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  25. 25.⏱️ Speeding a clip up to 2× makes it … (a) silent (b) half as long (c) twice as long (d) the same length
  26. 26.⏱️ Your video must be 90 seconds long. Your clips add up to 79 seconds. How many more seconds of video do you need?
  27. 27.⏱️ A video has three clips of 6, 25 and 38 seconds. How long is the video (in seconds)?
  28. 28.⏱️ How many seconds is 4 minutes 50 seconds?
  29. 29.⏱️ Your video must be 60 seconds long. Your clips add up to 33 seconds. How many more seconds of video do you need?
  30. 30.⏱️ Your video must be 60 seconds long. Your clips add up to 49 seconds. How many more seconds of video do you need?
  31. 31.⏱️ A video has three clips of 20, 51 and 50 seconds. How long is the video (in seconds)?
  32. 32.⏱️ A video is 350 seconds long. How long is that in minutes and seconds? (a) 5 min 50 s (b) 3 min 50 s (c) 5 min 20 s (d) 6 min 50 s
  33. 33.⏱️ A video has three clips of 35, 22 and 48 seconds. How long is the video (in seconds)?
  34. 34.⏱️ A video has three clips of 40, 46 and 22 seconds. How long is the video (in seconds)?
  35. 35.⏱️ A video has three clips of 14, 13 and 46 seconds. How long is the video (in seconds)?
  36. 36.⏱️ Your video must be 120 seconds long. Your clips add up to 21 seconds. How many more seconds of video do you need?
  37. 37.⏱️ A 15-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  38. 38.⏱️ How many seconds is 3 minutes 45 seconds?
  39. 39.⏱️ A video has three clips of 24, 5 and 36 seconds. How long is the video (in seconds)?
  40. 40.⏱️ A video is 530 seconds long. How long is that in minutes and seconds? (a) 8 min 50 s (b) 8 min 20 s (c) 5 min 30 s (d) 9 min 50 s

Answer key

  1. 84
  2. 9 min 50 s
  3. 170
  4. 22
  5. 4 min 5 s
  6. 256
  7. 48
  8. 1 min 40 s
  9. 286
  10. 427
  11. 18
  12. 59
  13. 35
  14. 60
  15. 100
  16. 37
  17. 38
  18. 123
  19. 8 min 25 s
  20. the sum of the clips
  21. 38
  22. 110
  23. 32
  24. 40
  25. half as long
  26. 11
  27. 69
  28. 290
  29. 27
  30. 11
  31. 121
  32. 5 min 50 s
  33. 105
  34. 108
  35. 73
  36. 99
  37. 30
  38. 225
  39. 65
  40. 8 min 50 s

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