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Video Editing Worksheet: Video Length

Animation and design lesson 21: Video length sums · Set 131 · 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 has three clips of 23, 46 and 11 seconds. How long is the video (in seconds)?
  2. 2.⏱️ A video has three clips of 53, 35 and 52 seconds. How long is the video (in seconds)?
  3. 3.⏱️ When you put clips one after another, the video length is … (a) the longest clip (b) the shortest clip (c) the sum of the clips (d) always 1 minute
  4. 4.⏱️ How many seconds are in 1 minute? (a) 30 (b) 60 (c) 10 (d) 100
  5. 5.⏱️ A video has three clips of 36, 9 and 9 seconds. How long is the video (in seconds)?
  6. 6.⏱️ A 5-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  7. 7.⏱️ How many seconds is 9 minutes 51 seconds?
  8. 8.⏱️ A video has three clips of 60, 7 and 19 seconds. How long is the video (in seconds)?
  9. 9.⏱️ How many seconds is 4 minutes 10 seconds?
  10. 10.⏱️ A 28-second clip is sped up to 4× speed. How long does it last now (in seconds)?
  11. 11.⏱️ How many seconds is 3 minutes 2 seconds?
  12. 12.⏱️ A video has three clips of 57, 60 and 5 seconds. How long is the video (in seconds)?
  13. 13.⏱️ A 6-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  14. 14.⏱️ A video is 195 seconds long. How long is that in minutes and seconds? (a) 1 min 95 s (b) 3 min 45 s (c) 3 min 15 s (d) 4 min 15 s
  15. 15.⏱️ A video is 405 seconds long. How long is that in minutes and seconds? (a) 6 min 45 s (b) 4 min 5 s (c) 7 min 45 s (d) 6 min 15 s
  16. 16.⏱️ A 24-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  17. 17.⏱️ Your video must be 120 seconds long. Your clips add up to 62 seconds. How many more seconds of video do you need?
  18. 18.⏱️ A 96-second clip is sped up to 4× speed. How long does it last now (in seconds)?
  19. 19.⏱️ A video has three clips of 59, 17 and 13 seconds. How long is the video (in seconds)?
  20. 20.⏱️ How many seconds is 4 minutes 47 seconds?
  21. 21.⏱️ How many seconds is 2 minutes 27 seconds?
  22. 22.⏱️ How many seconds is 2 minutes 7 seconds?
  23. 23.⏱️ A 14-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  24. 24.⏱️ Speeding a clip up to 2× makes it … (a) half as long (b) silent (c) the same length (d) twice as long
  25. 25.⏱️ An 18-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  26. 26.⏱️ A 30-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  27. 27.⏱️ A 34-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  28. 28.⏱️ A 9-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  29. 29.⏱️ An 11-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  30. 30.⏱️ An 80-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  31. 31.⏱️ A video is 140 seconds long. How long is that in minutes and seconds? (a) 2 min 50 s (b) 2 min 20 s (c) 1 min 40 s (d) 3 min 20 s
  32. 32.⏱️ A 16-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  33. 33.⏱️ Your video must be 180 seconds long. Your clips add up to 21 seconds. How many more seconds of video do you need?
  34. 34.⏱️ A video has three clips of 9, 31 and 50 seconds. How long is the video (in seconds)?
  35. 35.⏱️ Your video must be 60 seconds long. Your clips add up to 7 seconds. How many more seconds of video do you need?
  36. 36.⏱️ A video is 505 seconds long. How long is that in minutes and seconds? (a) 9 min 25 s (b) 5 min 5 s (c) 8 min 25 s (d) 8 min 55 s
  37. 37.⏱️ A video has three clips of 45, 52 and 54 seconds. How long is the video (in seconds)?
  38. 38.⏱️ A video has three clips of 18, 28 and 20 seconds. How long is the video (in seconds)?
  39. 39.⏱️ A video has three clips of 9, 29 and 47 seconds. How long is the video (in seconds)?
  40. 40.⏱️ How many seconds is 2 minutes 3 seconds?

Answer key

  1. 80
  2. 140
  3. the sum of the clips
  4. 60
  5. 54
  6. 10
  7. 591
  8. 86
  9. 250
  10. 7
  11. 182
  12. 122
  13. 12
  14. 3 min 15 s
  15. 6 min 45 s
  16. 48
  17. 58
  18. 24
  19. 89
  20. 287
  21. 147
  22. 127
  23. 28
  24. half as long
  25. 36
  26. 60
  27. 17
  28. 18
  29. 22
  30. 40
  31. 2 min 20 s
  32. 32
  33. 159
  34. 90
  35. 53
  36. 8 min 25 s
  37. 151
  38. 66
  39. 85
  40. 123

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