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Video Editing Worksheet: Video Length

Animation and design lesson 21: Video length sums · Set 177 · 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) the same length (b) silent (c) half as long (d) twice as long
  2. 2.⏱️ A video is 165 seconds long. How long is that in minutes and seconds? (a) 3 min 45 s (b) 2 min 15 s (c) 2 min 45 s (d) 1 min 65 s
  3. 3.⏱️ A video has three clips of 20, 8 and 17 seconds. How long is the video (in seconds)?
  4. 4.⏱️ A video has three clips of 24, 44 and 46 seconds. How long is the video (in seconds)?
  5. 5.⏱️ A 14-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  6. 6.⏱️ A video has three clips of 21, 39 and 49 seconds. How long is the video (in seconds)?
  7. 7.⏱️ Your video must be 90 seconds long. Your clips add up to 74 seconds. How many more seconds of video do you need?
  8. 8.⏱️ Your video must be 180 seconds long. Your clips add up to 5 seconds. How many more seconds of video do you need?
  9. 9.⏱️ Your video must be 180 seconds long. Your clips add up to 33 seconds. How many more seconds of video do you need?
  10. 10.⏱️ How many seconds is 2 minutes 30 seconds?
  11. 11.⏱️ How many seconds is 5 minutes 3 seconds?
  12. 12.⏱️ A video has three clips of 33, 53 and 22 seconds. How long is the video (in seconds)?
  13. 13.⏱️ A 25-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  14. 14.⏱️ When you put clips one after another, the video length is … (a) always 1 minute (b) the sum of the clips (c) the longest clip (d) the shortest clip
  15. 15.⏱️ A video is 295 seconds long. How long is that in minutes and seconds? (a) 4 min 25 s (b) 5 min 55 s (c) 2 min 95 s (d) 4 min 55 s
  16. 16.⏱️ An 11-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  17. 17.⏱️ A video is 150 seconds long. How long is that in minutes and seconds? (a) 2 min 30 s (b) 1 min 50 s (c) 3 min 30 s (d) 2 min 0 s
  18. 18.⏱️ A video has three clips of 43, 5 and 17 seconds. How long is the video (in seconds)?
  19. 19.⏱️ Your video must be 60 seconds long. Your clips add up to 16 seconds. How many more seconds of video do you need?
  20. 20.⏱️ A 36-second clip is sped up to 3× speed. How long does it last now (in seconds)?
  21. 21.⏱️ A video is 440 seconds long. How long is that in minutes and seconds? (a) 8 min 20 s (b) 7 min 20 s (c) 7 min 50 s (d) 4 min 40 s
  22. 22.⏱️ How many seconds are in 1 minute? (a) 100 (b) 10 (c) 30 (d) 60
  23. 23.⏱️ A video is 305 seconds long. How long is that in minutes and seconds? (a) 3 min 5 s (b) 5 min 5 s (c) 6 min 5 s (d) 5 min 35 s
  24. 24.⏱️ A 50-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  25. 25.⏱️ A video is 550 seconds long. How long is that in minutes and seconds? (a) 10 min 10 s (b) 5 min 50 s (c) 9 min 10 s (d) 9 min 40 s
  26. 26.⏱️ Your video must be 90 seconds long. Your clips add up to 18 seconds. How many more seconds of video do you need?
  27. 27.⏱️ A 30-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  28. 28.⏱️ A 39-second clip is sped up to 3× speed. How long does it last now (in seconds)?
  29. 29.⏱️ A 152-second clip is sped up to 4× speed. How long does it last now (in seconds)?
  30. 30.⏱️ A video is 350 seconds long. How long is that in minutes and seconds? (a) 5 min 50 s (b) 5 min 20 s (c) 3 min 50 s (d) 6 min 50 s
  31. 31.⏱️ Your video must be 60 seconds long. Your clips add up to 11 seconds. How many more seconds of video do you need?
  32. 32.⏱️ A video has three clips of 47, 9 and 45 seconds. How long is the video (in seconds)?
  33. 33.⏱️ A video has three clips of 5, 45 and 36 seconds. How long is the video (in seconds)?
  34. 34.⏱️ A 15-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  35. 35.⏱️ A 13-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  36. 36.⏱️ How many seconds is 6 minutes 18 seconds?
  37. 37.⏱️ How many seconds is 2 minutes 6 seconds?
  38. 38.⏱️ A 24-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  39. 39.⏱️ A 5-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  40. 40.⏱️ Your video must be 90 seconds long. Your clips add up to 60 seconds. How many more seconds of video do you need?

Answer key

  1. half as long
  2. 2 min 45 s
  3. 45
  4. 114
  5. 28
  6. 109
  7. 16
  8. 175
  9. 147
  10. 150
  11. 303
  12. 108
  13. 50
  14. the sum of the clips
  15. 4 min 55 s
  16. 22
  17. 2 min 30 s
  18. 65
  19. 44
  20. 12
  21. 7 min 20 s
  22. 60
  23. 5 min 5 s
  24. 25
  25. 9 min 10 s
  26. 72
  27. 15
  28. 13
  29. 38
  30. 5 min 50 s
  31. 49
  32. 101
  33. 86
  34. 30
  35. 26
  36. 378
  37. 126
  38. 12
  39. 10
  40. 30

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