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Video Editing Worksheet: Video Length

Animation and design lesson 21: Video length sums · Set 283 · 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.⏱️ How many seconds is 5 minutes 6 seconds?
  2. 2.⏱️ A 76-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  3. 3.⏱️ How many seconds is 3 minutes 16 seconds?
  4. 4.⏱️ A video is 450 seconds long. How long is that in minutes and seconds? (a) 7 min 0 s (b) 4 min 50 s (c) 8 min 30 s (d) 7 min 30 s
  5. 5.⏱️ A 26-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  6. 6.⏱️ A 12-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  7. 7.⏱️ How many seconds is 5 minutes 45 seconds?
  8. 8.⏱️ A video is 205 seconds long. How long is that in minutes and seconds? (a) 4 min 25 s (b) 3 min 25 s (c) 2 min 5 s (d) 3 min 55 s
  9. 9.⏱️ Your video must be 180 seconds long. Your clips add up to 43 seconds. How many more seconds of video do you need?
  10. 10.⏱️ How many seconds are in 1 minute? (a) 100 (b) 30 (c) 60 (d) 10
  11. 11.⏱️ A video is 325 seconds long. How long is that in minutes and seconds? (a) 3 min 25 s (b) 5 min 55 s (c) 6 min 25 s (d) 5 min 25 s
  12. 12.⏱️ Your video must be 60 seconds long. Your clips add up to 5 seconds. How many more seconds of video do you need?
  13. 13.⏱️ A 120-second clip is sped up to 4× speed. How long does it last now (in seconds)?
  14. 14.⏱️ Your video must be 180 seconds long. Your clips add up to 86 seconds. How many more seconds of video do you need?
  15. 15.⏱️ A video is 190 seconds long. How long is that in minutes and seconds? (a) 4 min 10 s (b) 3 min 40 s (c) 1 min 90 s (d) 3 min 10 s
  16. 16.⏱️ 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
  17. 17.⏱️ 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
  18. 18.⏱️ A video has three clips of 38, 10 and 20 seconds. How long is the video (in seconds)?
  19. 19.⏱️ Your video must be 180 seconds long. Your clips add up to 162 seconds. How many more seconds of video do you need?
  20. 20.⏱️ A video has three clips of 56, 10 and 39 seconds. How long is the video (in seconds)?
  21. 21.⏱️ A video has three clips of 37, 35 and 13 seconds. How long is the video (in seconds)?
  22. 22.⏱️ A video is 315 seconds long. How long is that in minutes and seconds? (a) 5 min 15 s (b) 6 min 15 s (c) 5 min 45 s (d) 3 min 15 s
  23. 23.⏱️ A video has three clips of 7, 35 and 46 seconds. How long is the video (in seconds)?
  24. 24.⏱️ How many seconds is 7 minutes 53 seconds?
  25. 25.⏱️ A video has three clips of 22, 27 and 58 seconds. How long is the video (in seconds)?
  26. 26.⏱️ How many seconds is 9 minutes 7 seconds?
  27. 27.⏱️ How many seconds is 2 minutes 2 seconds?
  28. 28.⏱️ Speeding a clip up to 2× makes it … (a) twice as long (b) silent (c) half as long (d) the same length
  29. 29.⏱️ A 5-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  30. 30.⏱️ Your video must be 60 seconds long. Your clips add up to 11 seconds. How many more seconds of video do you need?
  31. 31.⏱️ How many seconds is 8 minutes 54 seconds?
  32. 32.⏱️ Your video must be 90 seconds long. Your clips add up to 84 seconds. How many more seconds of video do you need?
  33. 33.⏱️ How many seconds is 9 minutes 35 seconds?
  34. 34.⏱️ A 114-second clip is sped up to 3× speed. How long does it last now (in seconds)?
  35. 35.⏱️ A video has three clips of 38, 49 and 21 seconds. How long is the video (in seconds)?
  36. 36.⏱️ Your video must be 120 seconds long. Your clips add up to 25 seconds. How many more seconds of video do you need?
  37. 37.⏱️ How many seconds is 3 minutes 52 seconds?
  38. 38.⏱️ A 75-second clip is sped up to 3× speed. How long does it last now (in seconds)?
  39. 39.⏱️ A video has three clips of 44, 33 and 40 seconds. How long is the video (in seconds)?
  40. 40.⏱️ A video has three clips of 52, 41 and 25 seconds. How long is the video (in seconds)?

Answer key

  1. 306
  2. 38
  3. 196
  4. 7 min 30 s
  5. 13
  6. 24
  7. 345
  8. 3 min 25 s
  9. 137
  10. 60
  11. 5 min 25 s
  12. 55
  13. 30
  14. 94
  15. 3 min 10 s
  16. the sum of the clips
  17. 3 min 20 s
  18. 68
  19. 18
  20. 105
  21. 85
  22. 5 min 15 s
  23. 88
  24. 473
  25. 107
  26. 547
  27. 122
  28. half as long
  29. 10
  30. 49
  31. 534
  32. 6
  33. 575
  34. 38
  35. 108
  36. 95
  37. 232
  38. 25
  39. 117
  40. 118

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