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Video Editing Worksheet: Video Length

Animation and design lesson 21: Video length sums · Set 234 · 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 120 seconds long. Your clips add up to 65 seconds. How many more seconds of video do you need?
  2. 2.⏱️ A 20-second clip is sped up to 4× speed. How long does it last now (in seconds)?
  3. 3.⏱️ A 19-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  4. 4.⏱️ When you put clips one after another, the video length is … (a) the shortest clip (b) the longest clip (c) the sum of the clips (d) always 1 minute
  5. 5.⏱️ How many seconds is 9 minutes 35 seconds?
  6. 6.⏱️ How many seconds is 8 minutes 4 seconds?
  7. 7.⏱️ How many seconds is 9 minutes 36 seconds?
  8. 8.⏱️ An 18-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  9. 9.⏱️ An 84-second clip is sped up to 3× speed. How long does it last now (in seconds)?
  10. 10.⏱️ Your video must be 60 seconds long. Your clips add up to 42 seconds. How many more seconds of video do you need?
  11. 11.⏱️ A video has three clips of 26, 5 and 12 seconds. How long is the video (in seconds)?
  12. 12.⏱️ A video has three clips of 18, 7 and 30 seconds. How long is the video (in seconds)?
  13. 13.⏱️ A video is 200 seconds long. How long is that in minutes and seconds? (a) 2 min 0 s (b) 4 min 20 s (c) 3 min 50 s (d) 3 min 20 s
  14. 14.⏱️ A 4-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  15. 15.⏱️ A 7-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  16. 16.⏱️ How many seconds is 3 minutes 51 seconds?
  17. 17.⏱️ Your video must be 180 seconds long. Your clips add up to 44 seconds. How many more seconds of video do you need?
  18. 18.⏱️ Speeding a clip up to 2× makes it … (a) the same length (b) silent (c) half as long (d) twice as long
  19. 19.⏱️ An 18-second clip is sped up to 3× speed. How long does it last now (in seconds)?
  20. 20.⏱️ A video is 190 seconds long. How long is that in minutes and seconds? (a) 3 min 10 s (b) 1 min 90 s (c) 3 min 40 s (d) 4 min 10 s
  21. 21.⏱️ A 32-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  22. 22.⏱️ A 26-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  23. 23.⏱️ How many seconds is 3 minutes 16 seconds?
  24. 24.⏱️ Your video must be 120 seconds long. Your clips add up to 30 seconds. How many more seconds of video do you need?
  25. 25.⏱️ A 28-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  26. 26.⏱️ A video has three clips of 10, 37 and 43 seconds. How long is the video (in seconds)?
  27. 27.⏱️ How many seconds is 6 minutes 12 seconds?
  28. 28.⏱️ A 10-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  29. 29.⏱️ How many seconds are in 1 minute? (a) 100 (b) 10 (c) 60 (d) 30
  30. 30.⏱️ A video has three clips of 32, 45 and 14 seconds. How long is the video (in seconds)?
  31. 31.⏱️ Your video must be 90 seconds long. Your clips add up to 42 seconds. How many more seconds of video do you need?
  32. 32.⏱️ A video is 315 seconds long. How long is that in minutes and seconds? (a) 6 min 15 s (b) 5 min 45 s (c) 5 min 15 s (d) 3 min 15 s
  33. 33.⏱️ Your video must be 90 seconds long. Your clips add up to 25 seconds. How many more seconds of video do you need?
  34. 34.⏱️ How many seconds is 1 minute 53 seconds?
  35. 35.⏱️ A video has three clips of 22, 45 and 10 seconds. How long is the video (in seconds)?
  36. 36.⏱️ How many seconds is 1 minute 28 seconds?
  37. 37.⏱️ A video is 80 seconds long. How long is that in minutes and seconds? (a) 3 min 20 s (b) 1 min 50 s (c) 2 min 20 s (d) 1 min 20 s
  38. 38.⏱️ A video has three clips of 17, 60 and 39 seconds. How long is the video (in seconds)?
  39. 39.⏱️ A video is 525 seconds long. How long is that in minutes and seconds? (a) 8 min 45 s (b) 5 min 25 s (c) 9 min 45 s (d) 8 min 15 s
  40. 40.⏱️ Your video must be 60 seconds long. Your clips add up to 55 seconds. How many more seconds of video do you need?

Answer key

  1. 55
  2. 5
  3. 38
  4. the sum of the clips
  5. 575
  6. 484
  7. 576
  8. 36
  9. 28
  10. 18
  11. 43
  12. 55
  13. 3 min 20 s
  14. 8
  15. 14
  16. 231
  17. 136
  18. half as long
  19. 6
  20. 3 min 10 s
  21. 16
  22. 13
  23. 196
  24. 90
  25. 56
  26. 90
  27. 372
  28. 5
  29. 60
  30. 91
  31. 48
  32. 5 min 15 s
  33. 65
  34. 113
  35. 77
  36. 88
  37. 1 min 20 s
  38. 116
  39. 8 min 45 s
  40. 5

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