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Video Editing Worksheet: Video Length

Animation and design lesson 21: Video length sums · Set 87 · 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 116-second clip is sped up to 4× speed. How long does it last now (in seconds)?
  2. 2.⏱️ 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
  3. 3.⏱️ A video has three clips of 49, 12 and 58 seconds. How long is the video (in seconds)?
  4. 4.⏱️ A video is 535 seconds long. How long is that in minutes and seconds? (a) 8 min 55 s (b) 5 min 35 s (c) 8 min 25 s (d) 9 min 55 s
  5. 5.⏱️ A 25-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  6. 6.⏱️ A video is 210 seconds long. How long is that in minutes and seconds? (a) 3 min 0 s (b) 4 min 30 s (c) 2 min 10 s (d) 3 min 30 s
  7. 7.⏱️ A video has three clips of 34, 57 and 53 seconds. How long is the video (in seconds)?
  8. 8.⏱️ A video is 140 seconds long. How long is that in minutes and seconds? (a) 3 min 20 s (b) 2 min 20 s (c) 2 min 50 s (d) 1 min 40 s
  9. 9.⏱️ A video has three clips of 55, 41 and 47 seconds. How long is the video (in seconds)?
  10. 10.⏱️ A video has three clips of 6, 57 and 32 seconds. How long is the video (in seconds)?
  11. 11.⏱️ A video is 160 seconds long. How long is that in minutes and seconds? (a) 1 min 60 s (b) 3 min 40 s (c) 2 min 10 s (d) 2 min 40 s
  12. 12.⏱️ A video is 205 seconds long. How long is that in minutes and seconds? (a) 2 min 5 s (b) 3 min 55 s (c) 3 min 25 s (d) 4 min 25 s
  13. 13.⏱️ A video has three clips of 5, 31 and 25 seconds. How long is the video (in seconds)?
  14. 14.⏱️ A video is 305 seconds long. How long is that in minutes and seconds? (a) 5 min 35 s (b) 6 min 5 s (c) 5 min 5 s (d) 3 min 5 s
  15. 15.⏱️ A 14-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  16. 16.⏱️ How many seconds are in 1 minute? (a) 30 (b) 100 (c) 10 (d) 60
  17. 17.⏱️ Your video must be 120 seconds long. Your clips add up to 48 seconds. How many more seconds of video do you need?
  18. 18.⏱️ A 66-second clip is sped up to 3× speed. How long does it last now (in seconds)?
  19. 19.⏱️ A video is 370 seconds long. How long is that in minutes and seconds? (a) 3 min 70 s (b) 7 min 10 s (c) 6 min 40 s (d) 6 min 10 s
  20. 20.⏱️ A 17-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  21. 21.⏱️ A 117-second clip is sped up to 3× speed. How long does it last now (in seconds)?
  22. 22.⏱️ Speeding a clip up to 2× makes it … (a) half as long (b) twice as long (c) silent (d) the same length
  23. 23.⏱️ A video is 470 seconds long. How long is that in minutes and seconds? (a) 4 min 70 s (b) 8 min 50 s (c) 7 min 20 s (d) 7 min 50 s
  24. 24.⏱️ A 21-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  25. 25.⏱️ A 36-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  26. 26.⏱️ A video has three clips of 14, 52 and 47 seconds. How long is the video (in seconds)?
  27. 27.⏱️ A 15-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  28. 28.⏱️ Your video must be 120 seconds long. Your clips add up to 38 seconds. How many more seconds of video do you need?
  29. 29.⏱️ A video has three clips of 26, 15 and 56 seconds. How long is the video (in seconds)?
  30. 30.⏱️ A video is 330 seconds long. How long is that in minutes and seconds? (a) 5 min 0 s (b) 3 min 30 s (c) 6 min 30 s (d) 5 min 30 s
  31. 31.⏱️ A 3-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  32. 32.⏱️ A video has three clips of 5, 51 and 14 seconds. How long is the video (in seconds)?
  33. 33.⏱️ A video is 115 seconds long. How long is that in minutes and seconds? (a) 2 min 55 s (b) 1 min 55 s (c) 1 min 15 s (d) 1 min 25 s
  34. 34.⏱️ A 22-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  35. 35.⏱️ A video is 375 seconds long. How long is that in minutes and seconds? (a) 6 min 45 s (b) 3 min 75 s (c) 6 min 15 s (d) 7 min 15 s
  36. 36.⏱️ A 6-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  37. 37.⏱️ A video has three clips of 13, 40 and 9 seconds. How long is the video (in seconds)?
  38. 38.⏱️ A 120-second clip is sped up to 3× speed. How long does it last now (in seconds)?
  39. 39.⏱️ A video has three clips of 33, 51 and 26 seconds. How long is the video (in seconds)?
  40. 40.⏱️ A 105-second clip is sped up to 3× speed. How long does it last now (in seconds)?

Answer key

  1. 29
  2. the sum of the clips
  3. 119
  4. 8 min 55 s
  5. 50
  6. 3 min 30 s
  7. 144
  8. 2 min 20 s
  9. 143
  10. 95
  11. 2 min 40 s
  12. 3 min 25 s
  13. 61
  14. 5 min 5 s
  15. 7
  16. 60
  17. 72
  18. 22
  19. 6 min 10 s
  20. 34
  21. 39
  22. half as long
  23. 7 min 50 s
  24. 42
  25. 18
  26. 113
  27. 30
  28. 82
  29. 97
  30. 5 min 30 s
  31. 6
  32. 70
  33. 1 min 55 s
  34. 11
  35. 6 min 15 s
  36. 12
  37. 62
  38. 40
  39. 110
  40. 35

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