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Video Editing Worksheet: Video Length

Animation and design lesson 21: Video length sums · Set 346 · 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 video is 575 seconds long. How long is that in minutes and seconds? (a) 5 min 75 s (b) 9 min 35 s (c) 9 min 5 s (d) 10 min 35 s
  2. 2.⏱️ How many seconds are in 1 minute? (a) 10 (b) 100 (c) 60 (d) 30
  3. 3.⏱️ Your video must be 120 seconds long. Your clips add up to 62 seconds. How many more seconds of video do you need?
  4. 4.⏱️ How many seconds is 8 minutes 5 seconds?
  5. 5.⏱️ A video has three clips of 7, 25 and 5 seconds. How long is the video (in seconds)?
  6. 6.⏱️ Your video must be 60 seconds long. Your clips add up to 24 seconds. How many more seconds of video do you need?
  7. 7.⏱️ When you put clips one after another, the video length is … (a) the shortest clip (b) the longest clip (c) always 1 minute (d) the sum of the clips
  8. 8.⏱️ A video has three clips of 19, 7 and 57 seconds. How long is the video (in seconds)?
  9. 9.⏱️ A 21-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 44, 41 and 32 seconds. How long is the video (in seconds)?
  11. 11.⏱️ A 156-second clip is sped up to 4× speed. How long does it last now (in seconds)?
  12. 12.⏱️ A video has three clips of 13, 5 and 33 seconds. How long is the video (in seconds)?
  13. 13.⏱️ A video has three clips of 10, 8 and 6 seconds. How long is the video (in seconds)?
  14. 14.⏱️ Your video must be 90 seconds long. Your clips add up to 23 seconds. How many more seconds of video do you need?
  15. 15.⏱️ Your video must be 180 seconds long. Your clips add up to 166 seconds. How many more seconds of video do you need?
  16. 16.⏱️ Your video must be 120 seconds long. Your clips add up to 50 seconds. How many more seconds of video do you need?
  17. 17.⏱️ A video has three clips of 35, 51 and 59 seconds. How long is the video (in seconds)?
  18. 18.⏱️ Speeding a clip up to 2× makes it … (a) twice as long (b) the same length (c) half as long (d) silent
  19. 19.⏱️ A video is 365 seconds long. How long is that in minutes and seconds? (a) 6 min 35 s (b) 7 min 5 s (c) 6 min 5 s (d) 3 min 65 s
  20. 20.⏱️ How many seconds is 3 minutes 36 seconds?
  21. 21.⏱️ A 28-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  22. 22.⏱️ Your video must be 120 seconds long. Your clips add up to 99 seconds. How many more seconds of video do you need?
  23. 23.⏱️ A 10-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  24. 24.⏱️ A video has three clips of 26, 29 and 56 seconds. How long is the video (in seconds)?
  25. 25.⏱️ A 23-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  26. 26.⏱️ A video has three clips of 24, 18 and 47 seconds. How long is the video (in seconds)?
  27. 27.⏱️ A video is 160 seconds long. How long is that in minutes and seconds? (a) 2 min 40 s (b) 3 min 40 s (c) 2 min 10 s (d) 1 min 60 s
  28. 28.⏱️ A 26-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  29. 29.⏱️ 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
  30. 30.⏱️ A 108-second clip is sped up to 4× speed. How long does it last now (in seconds)?
  31. 31.⏱️ A video is 520 seconds long. How long is that in minutes and seconds? (a) 5 min 20 s (b) 9 min 40 s (c) 8 min 40 s (d) 8 min 10 s
  32. 32.⏱️ A 46-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  33. 33.⏱️ An 11-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  34. 34.⏱️ A video has three clips of 25, 44 and 12 seconds. How long is the video (in seconds)?
  35. 35.⏱️ A video has three clips of 18, 51 and 50 seconds. How long is the video (in seconds)?
  36. 36.⏱️ How many seconds is 2 minutes 35 seconds?
  37. 37.⏱️ A 9-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  38. 38.⏱️ A 24-second clip is sped up to 4× speed. How long does it last now (in seconds)?
  39. 39.⏱️ How many seconds is 7 minutes 14 seconds?
  40. 40.⏱️ How many seconds is 4 minutes 44 seconds?

Answer key

  1. 9 min 35 s
  2. 60
  3. 58
  4. 485
  5. 37
  6. 36
  7. the sum of the clips
  8. 83
  9. 42
  10. 117
  11. 39
  12. 51
  13. 24
  14. 67
  15. 14
  16. 70
  17. 145
  18. half as long
  19. 6 min 5 s
  20. 216
  21. 56
  22. 21
  23. 20
  24. 111
  25. 46
  26. 89
  27. 2 min 40 s
  28. 52
  29. 2 min 10 s
  30. 27
  31. 8 min 40 s
  32. 23
  33. 22
  34. 81
  35. 119
  36. 155
  37. 18
  38. 6
  39. 434
  40. 284

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