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Video Editing Worksheet: Video Length

Animation and design lesson 21: Video length sums · Set 231 · 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.⏱️ Speeding a clip up to 2× makes it … (a) the same length (b) twice as long (c) silent (d) half as long
  2. 2.⏱️ How many seconds are in 1 minute? (a) 60 (b) 30 (c) 10 (d) 100
  3. 3.⏱️ A 26-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  4. 4.⏱️ How many seconds is 6 minutes 15 seconds?
  5. 5.⏱️ How many seconds is 8 minutes 22 seconds?
  6. 6.⏱️ A video has three clips of 25, 21 and 20 seconds. How long is the video (in seconds)?
  7. 7.⏱️ A video has three clips of 15, 41 and 44 seconds. How long is the video (in seconds)?
  8. 8.⏱️ A 76-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  9. 9.⏱️ Your video must be 180 seconds long. Your clips add up to 82 seconds. How many more seconds of video do you need?
  10. 10.⏱️ Your video must be 90 seconds long. Your clips add up to 26 seconds. How many more seconds of video do you need?
  11. 11.⏱️ A video has three clips of 37, 57 and 39 seconds. How long is the video (in seconds)?
  12. 12.⏱️ When you put clips one after another, the video length is … (a) always 1 minute (b) the shortest clip (c) the sum of the clips (d) the longest clip
  13. 13.⏱️ A video has three clips of 33, 38 and 15 seconds. How long is the video (in seconds)?
  14. 14.⏱️ How many seconds is 2 minutes 29 seconds?
  15. 15.⏱️ Your video must be 180 seconds long. Your clips add up to 137 seconds. How many more seconds of video do you need?
  16. 16.⏱️ A video is 410 seconds long. How long is that in minutes and seconds? (a) 4 min 10 s (b) 7 min 50 s (c) 6 min 20 s (d) 6 min 50 s
  17. 17.⏱️ A video has three clips of 18, 10 and 46 seconds. How long is the video (in seconds)?
  18. 18.⏱️ A video has three clips of 19, 29 and 38 seconds. How long is the video (in seconds)?
  19. 19.⏱️ A video has three clips of 12, 25 and 58 seconds. How long is the video (in seconds)?
  20. 20.⏱️ How many seconds is 1 minute 58 seconds?
  21. 21.⏱️ A video has three clips of 57, 6 and 9 seconds. How long is the video (in seconds)?
  22. 22.⏱️ A video is 110 seconds long. How long is that in minutes and seconds? (a) 2 min 50 s (b) 1 min 20 s (c) 1 min 10 s (d) 1 min 50 s
  23. 23.⏱️ Your video must be 60 seconds long. Your clips add up to 13 seconds. How many more seconds of video do you need?
  24. 24.⏱️ How many seconds is 5 minutes 55 seconds?
  25. 25.⏱️ A video is 305 seconds long. How long is that in minutes and seconds? (a) 5 min 35 s (b) 3 min 5 s (c) 6 min 5 s (d) 5 min 5 s
  26. 26.⏱️ A 12-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  27. 27.⏱️ How many seconds is 7 minutes 1 second?
  28. 28.⏱️ Your video must be 120 seconds long. Your clips add up to 88 seconds. How many more seconds of video do you need?
  29. 29.⏱️ A video is 185 seconds long. How long is that in minutes and seconds? (a) 3 min 35 s (b) 1 min 85 s (c) 3 min 5 s (d) 4 min 5 s
  30. 30.⏱️ How many seconds is 9 minutes 25 seconds?
  31. 31.⏱️ Your video must be 180 seconds long. Your clips add up to 136 seconds. How many more seconds of video do you need?
  32. 32.⏱️ A 102-second clip is sped up to 3× speed. How long does it last now (in seconds)?
  33. 33.⏱️ A 13-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  34. 34.⏱️ How many seconds is 3 minutes 54 seconds?
  35. 35.⏱️ How many seconds is 2 minutes 39 seconds?
  36. 36.⏱️ Your video must be 180 seconds long. Your clips add up to 70 seconds. How many more seconds of video do you need?
  37. 37.⏱️ A 25-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  38. 38.⏱️ A 30-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  39. 39.⏱️ How many seconds is 9 minutes 31 seconds?
  40. 40.⏱️ How many seconds is 2 minutes 42 seconds?

Answer key

  1. half as long
  2. 60
  3. 13
  4. 375
  5. 502
  6. 66
  7. 100
  8. 38
  9. 98
  10. 64
  11. 133
  12. the sum of the clips
  13. 86
  14. 149
  15. 43
  16. 6 min 50 s
  17. 74
  18. 86
  19. 95
  20. 118
  21. 72
  22. 1 min 50 s
  23. 47
  24. 355
  25. 5 min 5 s
  26. 24
  27. 421
  28. 32
  29. 3 min 5 s
  30. 565
  31. 44
  32. 34
  33. 26
  34. 234
  35. 159
  36. 110
  37. 50
  38. 60
  39. 571
  40. 162

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