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Video Editing Worksheet: Video Length

Animation and design lesson 21: Video length sums · Set 124 · 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 75 seconds long. How long is that in minutes and seconds? (a) 1 min 45 s (b) 3 min 15 s (c) 2 min 15 s (d) 1 min 15 s
  2. 2.⏱️ A video is 60 seconds long. How long is that in minutes and seconds? (a) 3 min 0 s (b) 1 min 30 s (c) 2 min 0 s (d) 1 min 0 s
  3. 3.⏱️ How many seconds are in 1 minute? (a) 10 (b) 60 (c) 100 (d) 30
  4. 4.⏱️ A 10-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  5. 5.⏱️ When you put clips one after another, the video length is … (a) the sum of the clips (b) the shortest clip (c) the longest clip (d) always 1 minute
  6. 6.⏱️ How many seconds is 2 minutes 52 seconds?
  7. 7.⏱️ A video is 390 seconds long. How long is that in minutes and seconds? (a) 6 min 30 s (b) 6 min 0 s (c) 7 min 30 s (d) 3 min 90 s
  8. 8.⏱️ A video has three clips of 49, 34 and 13 seconds. How long is the video (in seconds)?
  9. 9.⏱️ A video has three clips of 26, 35 and 27 seconds. How long is the video (in seconds)?
  10. 10.⏱️ An 88-second clip is sped up to 4× speed. How long does it last now (in seconds)?
  11. 11.⏱️ A video is 160 seconds long. How long is that in minutes and seconds? (a) 2 min 10 s (b) 3 min 40 s (c) 1 min 60 s (d) 2 min 40 s
  12. 12.⏱️ Your video must be 180 seconds long. Your clips add up to 11 seconds. How many more seconds of video do you need?
  13. 13.⏱️ Your video must be 60 seconds long. Your clips add up to 29 seconds. How many more seconds of video do you need?
  14. 14.⏱️ A 36-second clip is sped up to 3× speed. How long does it last now (in seconds)?
  15. 15.⏱️ A video has three clips of 59, 31 and 34 seconds. How long is the video (in seconds)?
  16. 16.⏱️ How many seconds is 1 minute 56 seconds?
  17. 17.⏱️ A video has three clips of 26, 42 and 20 seconds. How long is the video (in seconds)?
  18. 18.⏱️ A video has three clips of 26, 13 and 24 seconds. How long is the video (in seconds)?
  19. 19.⏱️ A video has three clips of 38, 57 and 55 seconds. How long is the video (in seconds)?
  20. 20.⏱️ A video has three clips of 58, 24 and 45 seconds. How long is the video (in seconds)?
  21. 21.⏱️ A video has three clips of 22, 39 and 18 seconds. How long is the video (in seconds)?
  22. 22.⏱️ A video has three clips of 53, 12 and 24 seconds. How long is the video (in seconds)?
  23. 23.⏱️ A 105-second clip is sped up to 3× speed. How long does it last now (in seconds)?
  24. 24.⏱️ How many seconds is 7 minutes 13 seconds?
  25. 25.⏱️ A video is 290 seconds long. How long is that in minutes and seconds? (a) 5 min 50 s (b) 4 min 20 s (c) 2 min 90 s (d) 4 min 50 s
  26. 26.⏱️ Your video must be 120 seconds long. Your clips add up to 73 seconds. How many more seconds of video do you need?
  27. 27.⏱️ Your video must be 120 seconds long. Your clips add up to 79 seconds. How many more seconds of video do you need?
  28. 28.⏱️ A 52-second clip is sped up to 4× speed. How long does it last now (in seconds)?
  29. 29.⏱️ Your video must be 90 seconds long. Your clips add up to 35 seconds. How many more seconds of video do you need?
  30. 30.⏱️ An 18-second clip is sped up to 3× speed. How long does it last now (in seconds)?
  31. 31.⏱️ A video has three clips of 13, 42 and 47 seconds. How long is the video (in seconds)?
  32. 32.⏱️ Speeding a clip up to 2× makes it … (a) the same length (b) twice as long (c) silent (d) half as long
  33. 33.⏱️ An 80-second clip is sped up to 4× speed. How long does it last now (in seconds)?
  34. 34.⏱️ How many seconds is 5 minutes 33 seconds?
  35. 35.⏱️ A 160-second clip is sped up to 4× speed. How long does it last now (in seconds)?
  36. 36.⏱️ A video is 225 seconds long. How long is that in minutes and seconds? (a) 3 min 15 s (b) 3 min 45 s (c) 2 min 25 s (d) 4 min 45 s
  37. 37.⏱️ Your video must be 180 seconds long. Your clips add up to 32 seconds. How many more seconds of video do you need?
  38. 38.⏱️ A video has three clips of 21, 26 and 19 seconds. How long is the video (in seconds)?
  39. 39.⏱️ How many seconds is 5 minutes 3 seconds?
  40. 40.⏱️ A 19-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?

Answer key

  1. 1 min 15 s
  2. 1 min 0 s
  3. 60
  4. 20
  5. the sum of the clips
  6. 172
  7. 6 min 30 s
  8. 96
  9. 88
  10. 22
  11. 2 min 40 s
  12. 169
  13. 31
  14. 12
  15. 124
  16. 116
  17. 88
  18. 63
  19. 150
  20. 127
  21. 79
  22. 89
  23. 35
  24. 433
  25. 4 min 50 s
  26. 47
  27. 41
  28. 13
  29. 55
  30. 6
  31. 102
  32. half as long
  33. 20
  34. 333
  35. 40
  36. 3 min 45 s
  37. 148
  38. 66
  39. 303
  40. 38

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