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Video Editing Worksheet: Video Length

Animation and design lesson 21: Video length sums · Set 265 · 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.⏱️ 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
  2. 2.⏱️ A 9-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  3. 3.⏱️ An 11-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  4. 4.⏱️ Your video must be 180 seconds long. Your clips add up to 13 seconds. How many more seconds of video do you need?
  5. 5.⏱️ How many seconds are in 1 minute? (a) 60 (b) 100 (c) 30 (d) 10
  6. 6.⏱️ How many seconds is 8 minutes 26 seconds?
  7. 7.⏱️ Your video must be 90 seconds long. Your clips add up to 42 seconds. How many more seconds of video do you need?
  8. 8.⏱️ A video is 505 seconds long. How long is that in minutes and seconds? (a) 8 min 55 s (b) 9 min 25 s (c) 8 min 25 s (d) 5 min 5 s
  9. 9.⏱️ A video has three clips of 38, 18 and 49 seconds. How long is the video (in seconds)?
  10. 10.⏱️ A 6-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  11. 11.⏱️ A video is 440 seconds long. How long is that in minutes and seconds? (a) 4 min 40 s (b) 8 min 20 s (c) 7 min 50 s (d) 7 min 20 s
  12. 12.⏱️ A 40-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  13. 13.⏱️ A video is 70 seconds long. How long is that in minutes and seconds? (a) 1 min 10 s (b) 2 min 10 s (c) 1 min 40 s (d) 3 min 10 s
  14. 14.⏱️ Your video must be 180 seconds long. Your clips add up to 157 seconds. How many more seconds of video do you need?
  15. 15.⏱️ A video is 125 seconds long. How long is that in minutes and seconds? (a) 3 min 5 s (b) 2 min 5 s (c) 2 min 35 s (d) 1 min 25 s
  16. 16.⏱️ A video has three clips of 27, 5 and 55 seconds. How long is the video (in seconds)?
  17. 17.⏱️ A 72-second clip is sped up to 3× speed. How long does it last now (in seconds)?
  18. 18.⏱️ A video has three clips of 42, 41 and 6 seconds. How long is the video (in seconds)?
  19. 19.⏱️ A 4-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  20. 20.⏱️ How many seconds is 8 minutes 51 seconds?
  21. 21.⏱️ A 74-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  22. 22.⏱️ How many seconds is 5 minutes 58 seconds?
  23. 23.⏱️ How many seconds is 7 minutes 8 seconds?
  24. 24.⏱️ A video is 425 seconds long. How long is that in minutes and seconds? (a) 7 min 5 s (b) 4 min 25 s (c) 7 min 35 s (d) 8 min 5 s
  25. 25.⏱️ A video has three clips of 41, 12 and 16 seconds. How long is the video (in seconds)?
  26. 26.⏱️ How many seconds is 4 minutes 2 seconds?
  27. 27.⏱️ How many seconds is 1 minute 21 seconds?
  28. 28.⏱️ A video has three clips of 36, 33 and 25 seconds. How long is the video (in seconds)?
  29. 29.⏱️ A 32-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  30. 30.⏱️ Your video must be 90 seconds long. Your clips add up to 76 seconds. How many more seconds of video do you need?
  31. 31.⏱️ How many seconds is 5 minutes 59 seconds?
  32. 32.⏱️ Your video must be 60 seconds long. Your clips add up to 22 seconds. How many more seconds of video do you need?
  33. 33.⏱️ How many seconds is 3 minutes 54 seconds?
  34. 34.⏱️ A video has three clips of 41, 46 and 13 seconds. How long is the video (in seconds)?
  35. 35.⏱️ A video has three clips of 14, 43 and 22 seconds. How long is the video (in seconds)?
  36. 36.⏱️ A video has three clips of 27, 30 and 54 seconds. How long is the video (in seconds)?
  37. 37.⏱️ A video is 300 seconds long. How long is that in minutes and seconds? (a) 6 min 0 s (b) 5 min 0 s (c) 3 min 0 s (d) 5 min 30 s
  38. 38.⏱️ A video is 75 seconds long. How long is that in minutes and seconds? (a) 1 min 45 s (b) 3 min 15 s (c) 1 min 15 s (d) 2 min 15 s
  39. 39.⏱️ A video has three clips of 8, 16 and 41 seconds. How long is the video (in seconds)?
  40. 40.⏱️ Speeding a clip up to 2× makes it … (a) silent (b) half as long (c) twice as long (d) the same length

Answer key

  1. the sum of the clips
  2. 18
  3. 22
  4. 167
  5. 60
  6. 506
  7. 48
  8. 8 min 25 s
  9. 105
  10. 12
  11. 7 min 20 s
  12. 20
  13. 1 min 10 s
  14. 23
  15. 2 min 5 s
  16. 87
  17. 24
  18. 89
  19. 8
  20. 531
  21. 37
  22. 358
  23. 428
  24. 7 min 5 s
  25. 69
  26. 242
  27. 81
  28. 94
  29. 16
  30. 14
  31. 359
  32. 38
  33. 234
  34. 100
  35. 79
  36. 111
  37. 5 min 0 s
  38. 1 min 15 s
  39. 65
  40. half as long

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