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Video Editing Worksheet: Video Length

Animation and design lesson 21: Video length sums · Set 247 · 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 90 seconds long. Your clips add up to 83 seconds. How many more seconds of video do you need?
  2. 2.⏱️ A 24-second clip is sped up to 3× speed. How long does it last now (in seconds)?
  3. 3.⏱️ A video is 250 seconds long. How long is that in minutes and seconds? (a) 2 min 50 s (b) 4 min 10 s (c) 5 min 10 s (d) 4 min 40 s
  4. 4.⏱️ Speeding a clip up to 2× makes it … (a) twice as long (b) silent (c) half as long (d) the same length
  5. 5.⏱️ A 32-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  6. 6.⏱️ A video is 220 seconds long. How long is that in minutes and seconds? (a) 3 min 10 s (b) 3 min 40 s (c) 2 min 20 s (d) 4 min 40 s
  7. 7.⏱️ Your video must be 180 seconds long. Your clips add up to 40 seconds. How many more seconds of video do you need?
  8. 8.⏱️ A video has three clips of 10, 10 and 11 seconds. How long is the video (in seconds)?
  9. 9.⏱️ A 22-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  10. 10.⏱️ A video has three clips of 49, 12 and 7 seconds. How long is the video (in seconds)?
  11. 11.⏱️ A video has three clips of 59, 39 and 58 seconds. How long is the video (in seconds)?
  12. 12.⏱️ A 4-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  13. 13.⏱️ A 29-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) the sum of the clips (b) always 1 minute (c) the shortest clip (d) the longest clip
  15. 15.⏱️ A video is 130 seconds long. How long is that in minutes and seconds? (a) 3 min 10 s (b) 1 min 30 s (c) 2 min 40 s (d) 2 min 10 s
  16. 16.⏱️ How many seconds is 3 minutes 35 seconds?
  17. 17.⏱️ A video is 530 seconds long. How long is that in minutes and seconds? (a) 9 min 50 s (b) 8 min 50 s (c) 8 min 20 s (d) 5 min 30 s
  18. 18.⏱️ A video is 105 seconds long. How long is that in minutes and seconds? (a) 1 min 45 s (b) 1 min 5 s (c) 1 min 15 s (d) 2 min 45 s
  19. 19.⏱️ A 9-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  20. 20.⏱️ How many seconds is 6 minutes 40 seconds?
  21. 21.⏱️ How many seconds are in 1 minute? (a) 60 (b) 30 (c) 10 (d) 100
  22. 22.⏱️ Your video must be 180 seconds long. Your clips add up to 142 seconds. How many more seconds of video do you need?
  23. 23.⏱️ A 24-second clip is sped up to 4× speed. How long does it last now (in seconds)?
  24. 24.⏱️ A 64-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  25. 25.⏱️ How many seconds is 1 minute 38 seconds?
  26. 26.⏱️ A video has three clips of 8, 39 and 48 seconds. How long is the video (in seconds)?
  27. 27.⏱️ A 56-second clip is sped up to 4× speed. How long does it last now (in seconds)?
  28. 28.⏱️ A video has three clips of 55, 56 and 30 seconds. How long is the video (in seconds)?
  29. 29.⏱️ A video has three clips of 9, 40 and 19 seconds. How long is the video (in seconds)?
  30. 30.⏱️ A 96-second clip is sped up to 4× speed. How long does it last now (in seconds)?
  31. 31.⏱️ A video has three clips of 44, 36 and 45 seconds. How long is the video (in seconds)?
  32. 32.⏱️ A 15-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  33. 33.⏱️ A 52-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  34. 34.⏱️ A 19-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  35. 35.⏱️ How many seconds is 3 minutes 30 seconds?
  36. 36.⏱️ A video is 135 seconds long. How long is that in minutes and seconds? (a) 1 min 35 s (b) 2 min 15 s (c) 2 min 45 s (d) 3 min 15 s
  37. 37.⏱️ A 13-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  38. 38.⏱️ A video has three clips of 51, 57 and 48 seconds. How long is the video (in seconds)?
  39. 39.⏱️ Your video must be 120 seconds long. Your clips add up to 25 seconds. How many more seconds of video do you need?
  40. 40.⏱️ A video is 210 seconds long. How long is that in minutes and seconds? (a) 4 min 30 s (b) 3 min 30 s (c) 2 min 10 s (d) 3 min 0 s

Answer key

  1. 7
  2. 8
  3. 4 min 10 s
  4. half as long
  5. 16
  6. 3 min 40 s
  7. 140
  8. 31
  9. 44
  10. 68
  11. 156
  12. 8
  13. 58
  14. the sum of the clips
  15. 2 min 10 s
  16. 215
  17. 8 min 50 s
  18. 1 min 45 s
  19. 18
  20. 400
  21. 60
  22. 38
  23. 6
  24. 32
  25. 98
  26. 95
  27. 14
  28. 141
  29. 68
  30. 24
  31. 125
  32. 30
  33. 26
  34. 38
  35. 210
  36. 2 min 15 s
  37. 26
  38. 156
  39. 95
  40. 3 min 30 s

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