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Video Editing Worksheet: Video Length

Animation and design lesson 21: Video length sums · Set 21 · 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 is 195 seconds long. How long is that in minutes and seconds? (a) 3 min 15 s (b) 3 min 45 s (c) 1 min 95 s (d) 4 min 15 s
  2. 2.⏱️ A 15-second clip is sped up to 3× speed. How long does it last now (in seconds)?
  3. 3.⏱️ When you put clips one after another, the video length is … (a) the shortest clip (b) always 1 minute (c) the sum of the clips (d) the longest clip
  4. 4.⏱️ A 70-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  5. 5.⏱️ A 23-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  6. 6.⏱️ Your video must be 180 seconds long. Your clips add up to 17 seconds. How many more seconds of video do you need?
  7. 7.⏱️ A video has three clips of 51, 14 and 39 seconds. How long is the video (in seconds)?
  8. 8.⏱️ A video is 140 seconds long. How long is that in minutes and seconds? (a) 2 min 50 s (b) 3 min 20 s (c) 1 min 40 s (d) 2 min 20 s
  9. 9.⏱️ An 11-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  10. 10.⏱️ A video is 205 seconds long. How long is that in minutes and seconds? (a) 2 min 5 s (b) 4 min 25 s (c) 3 min 55 s (d) 3 min 25 s
  11. 11.⏱️ How many seconds is 9 minutes 59 seconds?
  12. 12.⏱️ A 10-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  13. 13.⏱️ A 22-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  14. 14.⏱️ A video has three clips of 31, 5 and 27 seconds. How long is the video (in seconds)?
  15. 15.⏱️ How many seconds is 6 minutes 38 seconds?
  16. 16.⏱️ A video is 125 seconds long. How long is that in minutes and seconds? (a) 2 min 35 s (b) 2 min 5 s (c) 3 min 5 s (d) 1 min 25 s
  17. 17.⏱️ Speeding a clip up to 2× makes it … (a) silent (b) half as long (c) the same length (d) twice as long
  18. 18.⏱️ Your video must be 60 seconds long. Your clips add up to 32 seconds. How many more seconds of video do you need?
  19. 19.⏱️ How many seconds is 2 minutes 40 seconds?
  20. 20.⏱️ How many seconds are in 1 minute? (a) 10 (b) 30 (c) 60 (d) 100
  21. 21.⏱️ A 26-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  22. 22.⏱️ How many seconds is 1 minute 50 seconds?
  23. 23.⏱️ How many seconds is 8 minutes 36 seconds?
  24. 24.⏱️ How many seconds is 7 minutes 56 seconds?
  25. 25.⏱️ A 12-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  26. 26.⏱️ A 27-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  27. 27.⏱️ A video has three clips of 17, 34 and 21 seconds. How long is the video (in seconds)?
  28. 28.⏱️ A 20-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  29. 29.⏱️ How many seconds is 5 minutes 8 seconds?
  30. 30.⏱️ Your video must be 60 seconds long. Your clips add up to 52 seconds. How many more seconds of video do you need?
  31. 31.⏱️ An 80-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  32. 32.⏱️ A 38-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  33. 33.⏱️ A video has three clips of 45, 58 and 49 seconds. How long is the video (in seconds)?
  34. 34.⏱️ A video is 460 seconds long. How long is that in minutes and seconds? (a) 7 min 40 s (b) 4 min 60 s (c) 8 min 40 s (d) 7 min 10 s
  35. 35.⏱️ A 30-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  36. 36.⏱️ A video is 575 seconds long. How long is that in minutes and seconds? (a) 10 min 35 s (b) 9 min 5 s (c) 5 min 75 s (d) 9 min 35 s
  37. 37.⏱️ A video has three clips of 18, 16 and 50 seconds. How long is the video (in seconds)?
  38. 38.⏱️ A video has three clips of 45, 7 and 11 seconds. How long is the video (in seconds)?
  39. 39.⏱️ Your video must be 90 seconds long. Your clips add up to 83 seconds. How many more seconds of video do you need?
  40. 40.⏱️ How many seconds is 1 minute 15 seconds?

Answer key

  1. 3 min 15 s
  2. 5
  3. the sum of the clips
  4. 35
  5. 46
  6. 163
  7. 104
  8. 2 min 20 s
  9. 22
  10. 3 min 25 s
  11. 599
  12. 5
  13. 44
  14. 63
  15. 398
  16. 2 min 5 s
  17. half as long
  18. 28
  19. 160
  20. 60
  21. 52
  22. 110
  23. 516
  24. 476
  25. 24
  26. 54
  27. 72
  28. 40
  29. 308
  30. 8
  31. 40
  32. 19
  33. 152
  34. 7 min 40 s
  35. 15
  36. 9 min 35 s
  37. 84
  38. 63
  39. 7
  40. 75

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