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Video Editing Worksheet: Video Length

Animation and design lesson 21: Video length sums · Set 49 · 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 72-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  2. 2.⏱️ How many seconds is 4 minutes 4 seconds?
  3. 3.⏱️ A 44-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  4. 4.⏱️ A video has three clips of 46, 56 and 7 seconds. How long is the video (in seconds)?
  5. 5.⏱️ When you put clips one after another, the video length is … (a) always 1 minute (b) the longest clip (c) the sum of the clips (d) the shortest clip
  6. 6.⏱️ A video is 480 seconds long. How long is that in minutes and seconds? (a) 4 min 80 s (b) 8 min 0 s (c) 8 min 30 s (d) 9 min 0 s
  7. 7.⏱️ Your video must be 90 seconds long. Your clips add up to 75 seconds. How many more seconds of video do you need?
  8. 8.⏱️ How many seconds are in 1 minute? (a) 100 (b) 60 (c) 30 (d) 10
  9. 9.⏱️ Your video must be 180 seconds long. Your clips add up to 45 seconds. How many more seconds of video do you need?
  10. 10.⏱️ How many seconds is 4 minutes 45 seconds?
  11. 11.⏱️ How many seconds is 4 minutes 14 seconds?
  12. 12.⏱️ A video is 110 seconds long. How long is that in minutes and seconds? (a) 1 min 50 s (b) 1 min 20 s (c) 1 min 10 s (d) 2 min 50 s
  13. 13.⏱️ Your video must be 60 seconds long. Your clips add up to 7 seconds. How many more seconds of video do you need?
  14. 14.⏱️ A 10-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  15. 15.⏱️ A video has three clips of 32, 55 and 40 seconds. How long is the video (in seconds)?
  16. 16.⏱️ How many seconds is 3 minutes 41 seconds?
  17. 17.⏱️ How many seconds is 3 minutes 45 seconds?
  18. 18.⏱️ Your video must be 180 seconds long. Your clips add up to 33 seconds. How many more seconds of video do you need?
  19. 19.⏱️ A video has three clips of 48, 26 and 31 seconds. How long is the video (in seconds)?
  20. 20.⏱️ Speeding a clip up to 2× makes it … (a) silent (b) half as long (c) twice as long (d) the same length
  21. 21.⏱️ A 56-second clip is sped up to 4× speed. How long does it last now (in seconds)?
  22. 22.⏱️ A video is 185 seconds long. How long is that in minutes and seconds? (a) 1 min 85 s (b) 3 min 5 s (c) 3 min 35 s (d) 4 min 5 s
  23. 23.⏱️ Your video must be 120 seconds long. Your clips add up to 95 seconds. How many more seconds of video do you need?
  24. 24.⏱️ A video has three clips of 14, 27 and 36 seconds. How long is the video (in seconds)?
  25. 25.⏱️ A video is 165 seconds long. How long is that in minutes and seconds? (a) 1 min 65 s (b) 3 min 45 s (c) 2 min 45 s (d) 2 min 15 s
  26. 26.⏱️ Your video must be 180 seconds long. Your clips add up to 151 seconds. How many more seconds of video do you need?
  27. 27.⏱️ A 28-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  28. 28.⏱️ How many seconds is 3 minutes 58 seconds?
  29. 29.⏱️ Your video must be 180 seconds long. Your clips add up to 76 seconds. How many more seconds of video do you need?
  30. 30.⏱️ A video is 60 seconds long. How long is that in minutes and seconds? (a) 1 min 0 s (b) 3 min 0 s (c) 1 min 30 s (d) 2 min 0 s
  31. 31.⏱️ A video has three clips of 11, 22 and 7 seconds. How long is the video (in seconds)?
  32. 32.⏱️ How many seconds is 1 minute 58 seconds?
  33. 33.⏱️ A video has three clips of 26, 19 and 38 seconds. How long is the video (in seconds)?
  34. 34.⏱️ Your video must be 180 seconds long. Your clips add up to 111 seconds. How many more seconds of video do you need?
  35. 35.⏱️ A 20-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  36. 36.⏱️ A 29-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  37. 37.⏱️ How many seconds is 6 minutes 31 seconds?
  38. 38.⏱️ A 30-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  39. 39.⏱️ A video is 420 seconds long. How long is that in minutes and seconds? (a) 7 min 30 s (b) 4 min 20 s (c) 7 min 0 s (d) 8 min 0 s
  40. 40.⏱️ How many seconds is 3 minutes 22 seconds?

Answer key

  1. 36
  2. 244
  3. 22
  4. 109
  5. the sum of the clips
  6. 8 min 0 s
  7. 15
  8. 60
  9. 135
  10. 285
  11. 254
  12. 1 min 50 s
  13. 53
  14. 20
  15. 127
  16. 221
  17. 225
  18. 147
  19. 105
  20. half as long
  21. 14
  22. 3 min 5 s
  23. 25
  24. 77
  25. 2 min 45 s
  26. 29
  27. 56
  28. 238
  29. 104
  30. 1 min 0 s
  31. 40
  32. 118
  33. 83
  34. 69
  35. 40
  36. 58
  37. 391
  38. 15
  39. 7 min 0 s
  40. 202

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