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Video Editing Worksheet: Video Length

Animation and design lesson 21: Video length sums · Set 9 · 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 46-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  2. 2.⏱️ A video has three clips of 36, 9 and 47 seconds. How long is the video (in seconds)?
  3. 3.⏱️ How many seconds is 6 minutes 35 seconds?
  4. 4.⏱️ How many seconds is 3 minutes 19 seconds?
  5. 5.⏱️ A 32-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  6. 6.⏱️ A 22-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  7. 7.⏱️ When you put clips one after another, the video length is … (a) always 1 minute (b) the shortest clip (c) the longest clip (d) the sum of the clips
  8. 8.⏱️ A video is 545 seconds long. How long is that in minutes and seconds? (a) 5 min 45 s (b) 9 min 35 s (c) 10 min 5 s (d) 9 min 5 s
  9. 9.⏱️ Speeding a clip up to 2× makes it … (a) half as long (b) the same length (c) silent (d) twice as long
  10. 10.⏱️ A 3-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  11. 11.⏱️ How many seconds is 7 minutes 53 seconds?
  12. 12.⏱️ A 40-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  13. 13.⏱️ Your video must be 60 seconds long. Your clips add up to 12 seconds. How many more seconds of video do you need?
  14. 14.⏱️ A video has three clips of 30, 19 and 39 seconds. How long is the video (in seconds)?
  15. 15.⏱️ An 18-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  16. 16.⏱️ A 12-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  17. 17.⏱️ How many seconds is 1 minute 15 seconds?
  18. 18.⏱️ How many seconds is 5 minutes 48 seconds?
  19. 19.⏱️ How many seconds is 4 minutes 1 second?
  20. 20.⏱️ An 87-second clip is sped up to 3× speed. How long does it last now (in seconds)?
  21. 21.⏱️ Your video must be 180 seconds long. Your clips add up to 79 seconds. How many more seconds of video do you need?
  22. 22.⏱️ A 25-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  23. 23.⏱️ Your video must be 180 seconds long. Your clips add up to 141 seconds. How many more seconds of video do you need?
  24. 24.⏱️ How many seconds are in 1 minute? (a) 30 (b) 60 (c) 100 (d) 10
  25. 25.⏱️ Your video must be 90 seconds long. Your clips add up to 35 seconds. How many more seconds of video do you need?
  26. 26.⏱️ A video is 290 seconds long. How long is that in minutes and seconds? (a) 5 min 50 s (b) 2 min 90 s (c) 4 min 20 s (d) 4 min 50 s
  27. 27.⏱️ A video is 240 seconds long. How long is that in minutes and seconds? (a) 5 min 0 s (b) 4 min 0 s (c) 2 min 40 s (d) 4 min 30 s
  28. 28.⏱️ A video has three clips of 38, 15 and 5 seconds. How long is the video (in seconds)?
  29. 29.⏱️ An 84-second clip is sped up to 3× speed. How long does it last now (in seconds)?
  30. 30.⏱️ Your video must be 180 seconds long. Your clips add up to 29 seconds. How many more seconds of video do you need?
  31. 31.⏱️ A 66-second clip is sped up to 3× speed. How long does it last now (in seconds)?
  32. 32.⏱️ Your video must be 60 seconds long. Your clips add up to 10 seconds. How many more seconds of video do you need?
  33. 33.⏱️ Your video must be 180 seconds long. Your clips add up to 60 seconds. How many more seconds of video do you need?
  34. 34.⏱️ A video has three clips of 54, 21 and 8 seconds. How long is the video (in seconds)?
  35. 35.⏱️ Your video must be 90 seconds long. Your clips add up to 27 seconds. How many more seconds of video do you need?
  36. 36.⏱️ A video has three clips of 14, 55 and 59 seconds. How long is the video (in seconds)?
  37. 37.⏱️ How many seconds is 4 minutes 3 seconds?
  38. 38.⏱️ How many seconds is 2 minutes 59 seconds?
  39. 39.⏱️ A video has three clips of 41, 41 and 42 seconds. How long is the video (in seconds)?
  40. 40.⏱️ A video has three clips of 12, 29 and 5 seconds. How long is the video (in seconds)?

Answer key

  1. 23
  2. 92
  3. 395
  4. 199
  5. 16
  6. 44
  7. the sum of the clips
  8. 9 min 5 s
  9. half as long
  10. 6
  11. 473
  12. 20
  13. 48
  14. 88
  15. 36
  16. 24
  17. 75
  18. 348
  19. 241
  20. 29
  21. 101
  22. 50
  23. 39
  24. 60
  25. 55
  26. 4 min 50 s
  27. 4 min 0 s
  28. 58
  29. 28
  30. 151
  31. 22
  32. 50
  33. 120
  34. 83
  35. 63
  36. 128
  37. 243
  38. 179
  39. 124
  40. 46

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