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Video Editing Worksheet: Video Length

Animation and design lesson 21: Video length sums · Set 214 · 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 24-second clip is sped up to 3× speed. How long does it last now (in seconds)?
  2. 2.⏱️ Your video must be 120 seconds long. Your clips add up to 32 seconds. How many more seconds of video do you need?
  3. 3.⏱️ 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
  4. 4.⏱️ How many seconds are in 1 minute? (a) 60 (b) 10 (c) 100 (d) 30
  5. 5.⏱️ A video is 430 seconds long. How long is that in minutes and seconds? (a) 8 min 10 s (b) 7 min 10 s (c) 7 min 40 s (d) 4 min 30 s
  6. 6.⏱️ How many seconds is 2 minutes 14 seconds?
  7. 7.⏱️ A 15-second clip is sped up to 3× speed. How long does it last now (in seconds)?
  8. 8.⏱️ Your video must be 120 seconds long. Your clips add up to 81 seconds. How many more seconds of video do you need?
  9. 9.⏱️ An 84-second clip is sped up to 4× speed. How long does it last now (in seconds)?
  10. 10.⏱️ A 112-second clip is sped up to 4× speed. How long does it last now (in seconds)?
  11. 11.⏱️ How many seconds is 6 minutes 17 seconds?
  12. 12.⏱️ A video has three clips of 60, 29 and 34 seconds. How long is the video (in seconds)?
  13. 13.⏱️ A video has three clips of 5, 29 and 25 seconds. How long is the video (in seconds)?
  14. 14.⏱️ An 8-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  15. 15.⏱️ A video is 90 seconds long. How long is that in minutes and seconds? (a) 1 min 0 s (b) 2 min 30 s (c) 1 min 30 s (d) 3 min 30 s
  16. 16.⏱️ Speeding a clip up to 2× makes it … (a) twice as long (b) the same length (c) silent (d) half as long
  17. 17.⏱️ A video has three clips of 55, 5 and 49 seconds. How long is the video (in seconds)?
  18. 18.⏱️ How many seconds is 3 minutes 6 seconds?
  19. 19.⏱️ A 4-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  20. 20.⏱️ A 21-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  21. 21.⏱️ A video is 105 seconds long. How long is that in minutes and seconds? (a) 1 min 5 s (b) 2 min 45 s (c) 1 min 45 s (d) 1 min 15 s
  22. 22.⏱️ A 10-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  23. 23.⏱️ A video is 410 seconds long. How long is that in minutes and seconds? (a) 7 min 50 s (b) 6 min 50 s (c) 4 min 10 s (d) 6 min 20 s
  24. 24.⏱️ A video has three clips of 21, 45 and 41 seconds. How long is the video (in seconds)?
  25. 25.⏱️ How many seconds is 1 minute 12 seconds?
  26. 26.⏱️ Your video must be 120 seconds long. Your clips add up to 98 seconds. How many more seconds of video do you need?
  27. 27.⏱️ A video has three clips of 46, 24 and 18 seconds. How long is the video (in seconds)?
  28. 28.⏱️ How many seconds is 2 minutes 17 seconds?
  29. 29.⏱️ A 48-second clip is sped up to 3× speed. How long does it last now (in seconds)?
  30. 30.⏱️ How many seconds is 3 minutes 21 seconds?
  31. 31.⏱️ A video has three clips of 29, 50 and 17 seconds. How long is the video (in seconds)?
  32. 32.⏱️ A video is 415 seconds long. How long is that in minutes and seconds? (a) 6 min 25 s (b) 4 min 15 s (c) 7 min 55 s (d) 6 min 55 s
  33. 33.⏱️ How many seconds is 9 minutes 7 seconds?
  34. 34.⏱️ A 25-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  35. 35.⏱️ A video has three clips of 58, 41 and 31 seconds. How long is the video (in seconds)?
  36. 36.⏱️ A 42-second clip is sped up to 3× speed. How long does it last now (in seconds)?
  37. 37.⏱️ A video has three clips of 40, 47 and 59 seconds. How long is the video (in seconds)?
  38. 38.⏱️ How many seconds is 1 minute 4 seconds?
  39. 39.⏱️ Your video must be 90 seconds long. Your clips add up to 32 seconds. How many more seconds of video do you need?
  40. 40.⏱️ A video is 80 seconds long. How long is that in minutes and seconds? (a) 1 min 50 s (b) 3 min 20 s (c) 2 min 20 s (d) 1 min 20 s

Answer key

  1. 8
  2. 88
  3. the sum of the clips
  4. 60
  5. 7 min 10 s
  6. 134
  7. 5
  8. 39
  9. 21
  10. 28
  11. 377
  12. 123
  13. 59
  14. 16
  15. 1 min 30 s
  16. half as long
  17. 109
  18. 186
  19. 8
  20. 42
  21. 1 min 45 s
  22. 20
  23. 6 min 50 s
  24. 107
  25. 72
  26. 22
  27. 88
  28. 137
  29. 16
  30. 201
  31. 96
  32. 6 min 55 s
  33. 547
  34. 50
  35. 130
  36. 14
  37. 146
  38. 64
  39. 58
  40. 1 min 20 s

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