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Video Editing Worksheet: Video Length

Animation and design lesson 21: Video length sums · Set 342 · 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 22-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  2. 2.⏱️ A video has three clips of 8, 21 and 54 seconds. How long is the video (in seconds)?
  3. 3.⏱️ A video is 435 seconds long. How long is that in minutes and seconds? (a) 8 min 15 s (b) 7 min 15 s (c) 7 min 45 s (d) 4 min 35 s
  4. 4.⏱️ A video is 580 seconds long. How long is that in minutes and seconds? (a) 9 min 10 s (b) 5 min 80 s (c) 9 min 40 s (d) 10 min 40 s
  5. 5.⏱️ When you put clips one after another, the video length is … (a) the longest clip (b) the shortest clip (c) always 1 minute (d) the sum of the clips
  6. 6.⏱️ Speeding a clip up to 2× makes it … (a) the same length (b) twice as long (c) silent (d) half as long
  7. 7.⏱️ A video is 180 seconds long. How long is that in minutes and seconds? (a) 3 min 30 s (b) 1 min 80 s (c) 3 min 0 s (d) 4 min 0 s
  8. 8.⏱️ How many seconds are in 1 minute? (a) 10 (b) 100 (c) 60 (d) 30
  9. 9.⏱️ A 22-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  10. 10.⏱️ A video is 490 seconds long. How long is that in minutes and seconds? (a) 8 min 10 s (b) 8 min 40 s (c) 4 min 90 s (d) 9 min 10 s
  11. 11.⏱️ A 25-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  12. 12.⏱️ A video has three clips of 55, 22 and 43 seconds. How long is the video (in seconds)?
  13. 13.⏱️ A video is 255 seconds long. How long is that in minutes and seconds? (a) 4 min 15 s (b) 5 min 15 s (c) 4 min 45 s (d) 2 min 55 s
  14. 14.⏱️ A 148-second clip is sped up to 4× speed. How long does it last now (in seconds)?
  15. 15.⏱️ Your video must be 120 seconds long. Your clips add up to 50 seconds. How many more seconds of video do you need?
  16. 16.⏱️ A 30-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  17. 17.⏱️ Your video must be 180 seconds long. Your clips add up to 173 seconds. How many more seconds of video do you need?
  18. 18.⏱️ A 136-second clip is sped up to 4× speed. How long does it last now (in seconds)?
  19. 19.⏱️ A 70-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  20. 20.⏱️ A video has three clips of 14, 44 and 7 seconds. How long is the video (in seconds)?
  21. 21.⏱️ An 84-second clip is sped up to 3× speed. How long does it last now (in seconds)?
  22. 22.⏱️ A 96-second clip is sped up to 4× speed. How long does it last now (in seconds)?
  23. 23.⏱️ A 12-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  24. 24.⏱️ A video is 95 seconds long. How long is that in minutes and seconds? (a) 2 min 35 s (b) 3 min 35 s (c) 1 min 35 s (d) 1 min 5 s
  25. 25.⏱️ How many seconds is 3 minutes 11 seconds?
  26. 26.⏱️ An 18-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  27. 27.⏱️ How many seconds is 4 minutes 22 seconds?
  28. 28.⏱️ How many seconds is 3 minutes 10 seconds?
  29. 29.⏱️ A video has three clips of 43, 27 and 34 seconds. How long is the video (in seconds)?
  30. 30.⏱️ A 40-second clip is sped up to 4× speed. How long does it last now (in seconds)?
  31. 31.⏱️ How many seconds is 4 minutes 15 seconds?
  32. 32.⏱️ Your video must be 90 seconds long. Your clips add up to 58 seconds. How many more seconds of video do you need?
  33. 33.⏱️ A 16-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  34. 34.⏱️ Your video must be 120 seconds long. Your clips add up to 33 seconds. How many more seconds of video do you need?
  35. 35.⏱️ A 15-second clip is sped up to 3× speed. How long does it last now (in seconds)?
  36. 36.⏱️ Your video must be 180 seconds long. Your clips add up to 22 seconds. How many more seconds of video do you need?
  37. 37.⏱️ Your video must be 120 seconds long. Your clips add up to 19 seconds. How many more seconds of video do you need?
  38. 38.⏱️ A 32-second clip is sped up to 4× speed. How long does it last now (in seconds)?
  39. 39.⏱️ How many seconds is 4 minutes 41 seconds?
  40. 40.⏱️ A video is 235 seconds long. How long is that in minutes and seconds? (a) 2 min 35 s (b) 3 min 55 s (c) 4 min 55 s (d) 3 min 25 s

Answer key

  1. 44
  2. 83
  3. 7 min 15 s
  4. 9 min 40 s
  5. the sum of the clips
  6. half as long
  7. 3 min 0 s
  8. 60
  9. 11
  10. 8 min 10 s
  11. 50
  12. 120
  13. 4 min 15 s
  14. 37
  15. 70
  16. 60
  17. 7
  18. 34
  19. 35
  20. 65
  21. 28
  22. 24
  23. 6
  24. 1 min 35 s
  25. 191
  26. 36
  27. 262
  28. 190
  29. 104
  30. 10
  31. 255
  32. 32
  33. 8
  34. 87
  35. 5
  36. 158
  37. 101
  38. 8
  39. 281
  40. 3 min 55 s

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