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Video Editing Worksheet: Video Length

Animation and design lesson 21: Video length sums · Set 146 · 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.⏱️ How many seconds are in 1 minute? (a) 100 (b) 30 (c) 10 (d) 60
  2. 2.⏱️ A video is 405 seconds long. How long is that in minutes and seconds? (a) 4 min 5 s (b) 7 min 45 s (c) 6 min 15 s (d) 6 min 45 s
  3. 3.⏱️ A video has three clips of 57, 31 and 16 seconds. How long is the video (in seconds)?
  4. 4.⏱️ A video has three clips of 57, 31 and 32 seconds. How long is the video (in seconds)?
  5. 5.⏱️ A video has three clips of 57, 59 and 57 seconds. How long is the video (in seconds)?
  6. 6.⏱️ A video has three clips of 32, 26 and 8 seconds. How long is the video (in seconds)?
  7. 7.⏱️ An 84-second clip is sped up to 4× speed. How long does it last now (in seconds)?
  8. 8.⏱️ A 51-second clip is sped up to 3× speed. How long does it last now (in seconds)?
  9. 9.⏱️ When you put clips one after another, the video length is … (a) the longest clip (b) always 1 minute (c) the sum of the clips (d) the shortest clip
  10. 10.⏱️ A video has three clips of 12, 44 and 14 seconds. How long is the video (in seconds)?
  11. 11.⏱️ A video is 350 seconds long. How long is that in minutes and seconds? (a) 5 min 50 s (b) 5 min 20 s (c) 6 min 50 s (d) 3 min 50 s
  12. 12.⏱️ Speeding a clip up to 2× makes it … (a) twice as long (b) silent (c) the same length (d) half as long
  13. 13.⏱️ A video is 340 seconds long. How long is that in minutes and seconds? (a) 6 min 40 s (b) 3 min 40 s (c) 5 min 10 s (d) 5 min 40 s
  14. 14.⏱️ A 23-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  15. 15.⏱️ A 28-second clip is sped up to 4× speed. How long does it last now (in seconds)?
  16. 16.⏱️ How many seconds is 2 minutes 2 seconds?
  17. 17.⏱️ A video is 240 seconds long. How long is that in minutes and seconds? (a) 5 min 0 s (b) 2 min 40 s (c) 4 min 0 s (d) 4 min 30 s
  18. 18.⏱️ A video has three clips of 37, 53 and 56 seconds. How long is the video (in seconds)?
  19. 19.⏱️ Your video must be 90 seconds long. Your clips add up to 21 seconds. How many more seconds of video do you need?
  20. 20.⏱️ A video has three clips of 41, 22 and 47 seconds. How long is the video (in seconds)?
  21. 21.⏱️ Your video must be 120 seconds long. Your clips add up to 79 seconds. How many more seconds of video do you need?
  22. 22.⏱️ A 38-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  23. 23.⏱️ Your video must be 90 seconds long. Your clips add up to 23 seconds. How many more seconds of video do you need?
  24. 24.⏱️ Your video must be 60 seconds long. Your clips add up to 34 seconds. How many more seconds of video do you need?
  25. 25.⏱️ A 132-second clip is sped up to 4× speed. How long does it last now (in seconds)?
  26. 26.⏱️ A video has three clips of 49, 58 and 14 seconds. How long is the video (in seconds)?
  27. 27.⏱️ How many seconds is 3 minutes 29 seconds?
  28. 28.⏱️ A 58-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  29. 29.⏱️ A video has three clips of 5, 30 and 36 seconds. How long is the video (in seconds)?
  30. 30.⏱️ A 14-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  31. 31.⏱️ A 21-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  32. 32.⏱️ A video is 475 seconds long. How long is that in minutes and seconds? (a) 7 min 25 s (b) 4 min 75 s (c) 8 min 55 s (d) 7 min 55 s
  33. 33.⏱️ A video is 335 seconds long. How long is that in minutes and seconds? (a) 5 min 5 s (b) 6 min 35 s (c) 3 min 35 s (d) 5 min 35 s
  34. 34.⏱️ How many seconds is 7 minutes 2 seconds?
  35. 35.⏱️ A video has three clips of 26, 17 and 56 seconds. How long is the video (in seconds)?
  36. 36.⏱️ Your video must be 120 seconds long. Your clips add up to 52 seconds. How many more seconds of video do you need?
  37. 37.⏱️ A 16-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  38. 38.⏱️ A video has three clips of 51, 14 and 14 seconds. How long is the video (in seconds)?
  39. 39.⏱️ A video has three clips of 58, 19 and 8 seconds. How long is the video (in seconds)?
  40. 40.⏱️ A 27-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?

Answer key

  1. 60
  2. 6 min 45 s
  3. 104
  4. 120
  5. 173
  6. 66
  7. 21
  8. 17
  9. the sum of the clips
  10. 70
  11. 5 min 50 s
  12. half as long
  13. 5 min 40 s
  14. 46
  15. 7
  16. 122
  17. 4 min 0 s
  18. 146
  19. 69
  20. 110
  21. 41
  22. 19
  23. 67
  24. 26
  25. 33
  26. 121
  27. 209
  28. 29
  29. 71
  30. 28
  31. 42
  32. 7 min 55 s
  33. 5 min 35 s
  34. 422
  35. 99
  36. 68
  37. 32
  38. 79
  39. 85
  40. 54

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