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Video Editing Worksheet: Video Length

Animation and design lesson 21: Video length sums · Set 198 · 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 60 seconds long. Your clips add up to 48 seconds. How many more seconds of video do you need?
  2. 2.⏱️ A 62-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  3. 3.⏱️ Your video must be 60 seconds long. Your clips add up to 16 seconds. How many more seconds of video do you need?
  4. 4.⏱️ How many seconds is 9 minutes 23 seconds?
  5. 5.⏱️ Your video must be 60 seconds long. Your clips add up to 25 seconds. How many more seconds of video do you need?
  6. 6.⏱️ A video is 70 seconds long. How long is that in minutes and seconds? (a) 1 min 10 s (b) 3 min 10 s (c) 2 min 10 s (d) 1 min 40 s
  7. 7.⏱️ A video is 140 seconds long. How long is that in minutes and seconds? (a) 3 min 20 s (b) 1 min 40 s (c) 2 min 20 s (d) 2 min 50 s
  8. 8.⏱️ A video has three clips of 52, 41 and 31 seconds. How long is the video (in seconds)?
  9. 9.⏱️ A video is 565 seconds long. How long is that in minutes and seconds? (a) 9 min 55 s (b) 10 min 25 s (c) 9 min 25 s (d) 5 min 65 s
  10. 10.⏱️ How many seconds is 6 minutes 4 seconds?
  11. 11.⏱️ How many seconds are in 1 minute? (a) 100 (b) 60 (c) 30 (d) 10
  12. 12.⏱️ Your video must be 90 seconds long. Your clips add up to 6 seconds. How many more seconds of video do you need?
  13. 13.⏱️ A video is 275 seconds long. How long is that in minutes and seconds? (a) 5 min 35 s (b) 4 min 5 s (c) 4 min 35 s (d) 2 min 75 s
  14. 14.⏱️ Your video must be 120 seconds long. Your clips add up to 45 seconds. How many more seconds of video do you need?
  15. 15.⏱️ Your video must be 90 seconds long. Your clips add up to 65 seconds. How many more seconds of video do you need?
  16. 16.⏱️ A video is 190 seconds long. How long is that in minutes and seconds? (a) 1 min 90 s (b) 3 min 40 s (c) 3 min 10 s (d) 4 min 10 s
  17. 17.⏱️ A video has three clips of 55, 42 and 26 seconds. How long is the video (in seconds)?
  18. 18.⏱️ Your video must be 90 seconds long. Your clips add up to 24 seconds. How many more seconds of video do you need?
  19. 19.⏱️ Your video must be 180 seconds long. Your clips add up to 41 seconds. How many more seconds of video do you need?
  20. 20.⏱️ A 20-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  21. 21.⏱️ A 24-second clip is sped up to 3× speed. How long does it last now (in seconds)?
  22. 22.⏱️ How many seconds is 3 minutes 9 seconds?
  23. 23.⏱️ A video is 555 seconds long. How long is that in minutes and seconds? (a) 9 min 15 s (b) 5 min 55 s (c) 9 min 45 s (d) 10 min 15 s
  24. 24.⏱️ Your video must be 180 seconds long. Your clips add up to 18 seconds. How many more seconds of video do you need?
  25. 25.⏱️ Speeding a clip up to 2× makes it … (a) twice as long (b) half as long (c) the same length (d) silent
  26. 26.⏱️ A 128-second clip is sped up to 4× speed. How long does it last now (in seconds)?
  27. 27.⏱️ A video has three clips of 9, 5 and 17 seconds. How long is the video (in seconds)?
  28. 28.⏱️ When you put clips one after another, the video length is … (a) the shortest clip (b) always 1 minute (c) the longest clip (d) the sum of the clips
  29. 29.⏱️ A video has three clips of 47, 51 and 5 seconds. How long is the video (in seconds)?
  30. 30.⏱️ A 5-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  31. 31.⏱️ A 26-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  32. 32.⏱️ A 50-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  33. 33.⏱️ A 75-second clip is sped up to 3× speed. How long does it last now (in seconds)?
  34. 34.⏱️ A video is 525 seconds long. How long is that in minutes and seconds? (a) 8 min 45 s (b) 9 min 45 s (c) 8 min 15 s (d) 5 min 25 s
  35. 35.⏱️ A 20-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  36. 36.⏱️ Your video must be 180 seconds long. Your clips add up to 129 seconds. How many more seconds of video do you need?
  37. 37.⏱️ Your video must be 60 seconds long. Your clips add up to 41 seconds. How many more seconds of video do you need?
  38. 38.⏱️ How many seconds is 8 minutes 44 seconds?
  39. 39.⏱️ How many seconds is 3 minutes 55 seconds?
  40. 40.⏱️ A 111-second clip is sped up to 3× speed. How long does it last now (in seconds)?

Answer key

  1. 12
  2. 31
  3. 44
  4. 563
  5. 35
  6. 1 min 10 s
  7. 2 min 20 s
  8. 124
  9. 9 min 25 s
  10. 364
  11. 60
  12. 84
  13. 4 min 35 s
  14. 75
  15. 25
  16. 3 min 10 s
  17. 123
  18. 66
  19. 139
  20. 40
  21. 8
  22. 189
  23. 9 min 15 s
  24. 162
  25. half as long
  26. 32
  27. 31
  28. the sum of the clips
  29. 103
  30. 10
  31. 52
  32. 25
  33. 25
  34. 8 min 45 s
  35. 10
  36. 51
  37. 19
  38. 524
  39. 235
  40. 37

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