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Video Editing Worksheet: Video Length

Animation and design lesson 21: Video length sums · Set 188 · 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.⏱️ Your video must be 180 seconds long. Your clips add up to 69 seconds. How many more seconds of video do you need?
  2. 2.⏱️ How many seconds are in 1 minute? (a) 10 (b) 30 (c) 100 (d) 60
  3. 3.⏱️ A 72-second clip is sped up to 3× speed. How long does it last now (in seconds)?
  4. 4.⏱️ How many seconds is 3 minutes 19 seconds?
  5. 5.⏱️ 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) 1 min 20 s (d) 2 min 20 s
  6. 6.⏱️ How many seconds is 1 minute 57 seconds?
  7. 7.⏱️ A 12-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  8. 8.⏱️ A video has three clips of 5, 6 and 52 seconds. How long is the video (in seconds)?
  9. 9.⏱️ Your video must be 60 seconds long. Your clips add up to 21 seconds. How many more seconds of video do you need?
  10. 10.⏱️ When you put clips one after another, the video length is … (a) the shortest clip (b) the sum of the clips (c) the longest clip (d) always 1 minute
  11. 11.⏱️ Your video must be 120 seconds long. Your clips add up to 77 seconds. How many more seconds of video do you need?
  12. 12.⏱️ Speeding a clip up to 2× makes it … (a) twice as long (b) the same length (c) half as long (d) silent
  13. 13.⏱️ How many seconds is 1 minute 10 seconds?
  14. 14.⏱️ A video has three clips of 56, 20 and 28 seconds. How long is the video (in seconds)?
  15. 15.⏱️ A 6-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  16. 16.⏱️ A video has three clips of 24, 32 and 58 seconds. How long is the video (in seconds)?
  17. 17.⏱️ Your video must be 120 seconds long. Your clips add up to 70 seconds. How many more seconds of video do you need?
  18. 18.⏱️ How many seconds is 4 minutes 28 seconds?
  19. 19.⏱️ A 62-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  20. 20.⏱️ Your video must be 180 seconds long. Your clips add up to 39 seconds. How many more seconds of video do you need?
  21. 21.⏱️ A 52-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  22. 22.⏱️ A video is 445 seconds long. How long is that in minutes and seconds? (a) 7 min 55 s (b) 7 min 25 s (c) 8 min 25 s (d) 4 min 45 s
  23. 23.⏱️ A video has three clips of 14, 40 and 59 seconds. How long is the video (in seconds)?
  24. 24.⏱️ Your video must be 90 seconds long. Your clips add up to 62 seconds. How many more seconds of video do you need?
  25. 25.⏱️ A video has three clips of 51, 6 and 17 seconds. How long is the video (in seconds)?
  26. 26.⏱️ Your video must be 180 seconds long. Your clips add up to 111 seconds. How many more seconds of video do you need?
  27. 27.⏱️ A video has three clips of 45, 45 and 34 seconds. How long is the video (in seconds)?
  28. 28.⏱️ A video has three clips of 13, 33 and 12 seconds. How long is the video (in seconds)?
  29. 29.⏱️ A video has three clips of 12, 26 and 15 seconds. How long is the video (in seconds)?
  30. 30.⏱️ A video has three clips of 29, 10 and 52 seconds. How long is the video (in seconds)?
  31. 31.⏱️ A video has three clips of 41, 12 and 10 seconds. How long is the video (in seconds)?
  32. 32.⏱️ A video has three clips of 26, 54 and 32 seconds. How long is the video (in seconds)?
  33. 33.⏱️ A 63-second clip is sped up to 3× speed. How long does it last now (in seconds)?
  34. 34.⏱️ A 93-second clip is sped up to 3× speed. How long does it last now (in seconds)?
  35. 35.⏱️ A video has three clips of 20, 9 and 46 seconds. How long is the video (in seconds)?
  36. 36.⏱️ A 30-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  37. 37.⏱️ Your video must be 180 seconds long. Your clips add up to 153 seconds. How many more seconds of video do you need?
  38. 38.⏱️ A 28-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  39. 39.⏱️ A video has three clips of 59, 21 and 10 seconds. How long is the video (in seconds)?
  40. 40.⏱️ Your video must be 180 seconds long. Your clips add up to 51 seconds. How many more seconds of video do you need?

Answer key

  1. 111
  2. 60
  3. 24
  4. 199
  5. 1 min 20 s
  6. 117
  7. 6
  8. 63
  9. 39
  10. the sum of the clips
  11. 43
  12. half as long
  13. 70
  14. 104
  15. 12
  16. 114
  17. 50
  18. 268
  19. 31
  20. 141
  21. 26
  22. 7 min 25 s
  23. 113
  24. 28
  25. 74
  26. 69
  27. 124
  28. 58
  29. 53
  30. 91
  31. 63
  32. 112
  33. 21
  34. 31
  35. 75
  36. 60
  37. 27
  38. 56
  39. 90
  40. 129

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