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Video Editing Worksheet: Video Length

Animation and design lesson 21: Video length sums · Set 109 · 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 60 seconds long. Your clips add up to 36 seconds. How many more seconds of video do you need?
  2. 2.⏱️ A video has three clips of 18, 22 and 60 seconds. How long is the video (in seconds)?
  3. 3.⏱️ A video has three clips of 22, 6 and 24 seconds. How long is the video (in seconds)?
  4. 4.⏱️ A video has three clips of 39, 6 and 18 seconds. How long is the video (in seconds)?
  5. 5.⏱️ Speeding a clip up to 2× makes it … (a) the same length (b) half as long (c) twice as long (d) silent
  6. 6.⏱️ A video has three clips of 15, 18 and 12 seconds. How long is the video (in seconds)?
  7. 7.⏱️ Your video must be 180 seconds long. Your clips add up to 133 seconds. How many more seconds of video do you need?
  8. 8.⏱️ A video is 465 seconds long. How long is that in minutes and seconds? (a) 7 min 45 s (b) 7 min 15 s (c) 4 min 65 s (d) 8 min 45 s
  9. 9.⏱️ When you put clips one after another, the video length is … (a) the shortest clip (b) the sum of the clips (c) always 1 minute (d) the longest clip
  10. 10.⏱️ Your video must be 60 seconds long. Your clips add up to 46 seconds. How many more seconds of video do you need?
  11. 11.⏱️ A video is 135 seconds long. How long is that in minutes and seconds? (a) 2 min 45 s (b) 3 min 15 s (c) 1 min 35 s (d) 2 min 15 s
  12. 12.⏱️ A 44-second clip is sped up to 4× speed. How long does it last now (in seconds)?
  13. 13.⏱️ Your video must be 180 seconds long. Your clips add up to 21 seconds. How many more seconds of video do you need?
  14. 14.⏱️ A 25-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  15. 15.⏱️ A video has three clips of 60, 17 and 7 seconds. How long is the video (in seconds)?
  16. 16.⏱️ A video is 470 seconds long. How long is that in minutes and seconds? (a) 4 min 70 s (b) 7 min 50 s (c) 8 min 50 s (d) 7 min 20 s
  17. 17.⏱️ Your video must be 60 seconds long. Your clips add up to 42 seconds. How many more seconds of video do you need?
  18. 18.⏱️ How many seconds is 5 minutes 32 seconds?
  19. 19.⏱️ A video is 165 seconds long. How long is that in minutes and seconds? (a) 3 min 45 s (b) 2 min 45 s (c) 2 min 15 s (d) 1 min 65 s
  20. 20.⏱️ A video has three clips of 29, 55 and 47 seconds. How long is the video (in seconds)?
  21. 21.⏱️ A 16-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  22. 22.⏱️ A 78-second clip is sped up to 3× speed. How long does it last now (in seconds)?
  23. 23.⏱️ A video is 205 seconds long. How long is that in minutes and seconds? (a) 4 min 25 s (b) 2 min 5 s (c) 3 min 25 s (d) 3 min 55 s
  24. 24.⏱️ Your video must be 120 seconds long. Your clips add up to 78 seconds. How many more seconds of video do you need?
  25. 25.⏱️ Your video must be 180 seconds long. Your clips add up to 165 seconds. How many more seconds of video do you need?
  26. 26.⏱️ How many seconds are in 1 minute? (a) 60 (b) 10 (c) 30 (d) 100
  27. 27.⏱️ How many seconds is 1 minute 3 seconds?
  28. 28.⏱️ Your video must be 120 seconds long. Your clips add up to 68 seconds. How many more seconds of video do you need?
  29. 29.⏱️ A video has three clips of 59, 40 and 14 seconds. How long is the video (in seconds)?
  30. 30.⏱️ How many seconds is 2 minutes 46 seconds?
  31. 31.⏱️ A 114-second clip is sped up to 3× speed. How long does it last now (in seconds)?
  32. 32.⏱️ A 39-second clip is sped up to 3× speed. How long does it last now (in seconds)?
  33. 33.⏱️ A 102-second clip is sped up to 3× speed. How long does it last now (in seconds)?
  34. 34.⏱️ A video has three clips of 14, 9 and 33 seconds. How long is the video (in seconds)?
  35. 35.⏱️ A video has three clips of 28, 53 and 22 seconds. How long is the video (in seconds)?
  36. 36.⏱️ A video is 405 seconds long. How long is that in minutes and seconds? (a) 4 min 5 s (b) 6 min 15 s (c) 6 min 45 s (d) 7 min 45 s
  37. 37.⏱️ How many seconds is 3 minutes 27 seconds?
  38. 38.⏱️ 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) 3 min 50 s (d) 6 min 50 s
  39. 39.⏱️ How many seconds is 6 minutes 52 seconds?
  40. 40.⏱️ An 8-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?

Answer key

  1. 24
  2. 100
  3. 52
  4. 63
  5. half as long
  6. 45
  7. 47
  8. 7 min 45 s
  9. the sum of the clips
  10. 14
  11. 2 min 15 s
  12. 11
  13. 159
  14. 50
  15. 84
  16. 7 min 50 s
  17. 18
  18. 332
  19. 2 min 45 s
  20. 131
  21. 32
  22. 26
  23. 3 min 25 s
  24. 42
  25. 15
  26. 60
  27. 63
  28. 52
  29. 113
  30. 166
  31. 38
  32. 13
  33. 34
  34. 56
  35. 103
  36. 6 min 45 s
  37. 207
  38. 5 min 50 s
  39. 412
  40. 16

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