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Video Editing Worksheet: Video Length

Animation and design lesson 21: Video length sums · Set 312 · 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 75-second clip is sped up to 3× speed. How long does it last now (in seconds)?
  2. 2.⏱️ When you put clips one after another, the video length is … (a) the shortest clip (b) the sum of the clips (c) the longest clip (d) always 1 minute
  3. 3.⏱️ How many seconds is 4 minutes 26 seconds?
  4. 4.⏱️ A video has three clips of 48, 13 and 25 seconds. How long is the video (in seconds)?
  5. 5.⏱️ Speeding a clip up to 2× makes it … (a) twice as long (b) silent (c) half as long (d) the same length
  6. 6.⏱️ How many seconds is 2 minutes 16 seconds?
  7. 7.⏱️ A 10-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  8. 8.⏱️ A video has three clips of 28, 6 and 33 seconds. How long is the video (in seconds)?
  9. 9.⏱️ A video has three clips of 16, 45 and 44 seconds. How long is the video (in seconds)?
  10. 10.⏱️ How many seconds are in 1 minute? (a) 60 (b) 100 (c) 30 (d) 10
  11. 11.⏱️ How many seconds is 2 minutes 26 seconds?
  12. 12.⏱️ A video is 500 seconds long. How long is that in minutes and seconds? (a) 9 min 20 s (b) 5 min 0 s (c) 8 min 20 s (d) 8 min 50 s
  13. 13.⏱️ A 17-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  14. 14.⏱️ How many seconds is 1 minute 35 seconds?
  15. 15.⏱️ How many seconds is 2 minutes 9 seconds?
  16. 16.⏱️ A video is 455 seconds long. How long is that in minutes and seconds? (a) 7 min 5 s (b) 4 min 55 s (c) 7 min 35 s (d) 8 min 35 s
  17. 17.⏱️ A 27-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  18. 18.⏱️ A video is 130 seconds long. How long is that in minutes and seconds? (a) 2 min 40 s (b) 1 min 30 s (c) 2 min 10 s (d) 3 min 10 s
  19. 19.⏱️ Your video must be 60 seconds long. Your clips add up to 46 seconds. How many more seconds of video do you need?
  20. 20.⏱️ A video is 590 seconds long. How long is that in minutes and seconds? (a) 9 min 20 s (b) 5 min 90 s (c) 9 min 50 s (d) 10 min 50 s
  21. 21.⏱️ A 144-second clip is sped up to 4× speed. How long does it last now (in seconds)?
  22. 22.⏱️ A video is 515 seconds long. How long is that in minutes and seconds? (a) 9 min 35 s (b) 5 min 15 s (c) 8 min 5 s (d) 8 min 35 s
  23. 23.⏱️ A video is 365 seconds long. How long is that in minutes and seconds? (a) 3 min 65 s (b) 6 min 5 s (c) 7 min 5 s (d) 6 min 35 s
  24. 24.⏱️ A video has three clips of 60, 15 and 55 seconds. How long is the video (in seconds)?
  25. 25.⏱️ Your video must be 60 seconds long. Your clips add up to 45 seconds. How many more seconds of video do you need?
  26. 26.⏱️ Your video must be 180 seconds long. Your clips add up to 100 seconds. How many more seconds of video do you need?
  27. 27.⏱️ A 27-second clip is sped up to 3× speed. How long does it last now (in seconds)?
  28. 28.⏱️ A video is 280 seconds long. How long is that in minutes and seconds? (a) 5 min 40 s (b) 4 min 10 s (c) 4 min 40 s (d) 2 min 80 s
  29. 29.⏱️ A video has three clips of 18, 20 and 39 seconds. How long is the video (in seconds)?
  30. 30.⏱️ 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
  31. 31.⏱️ How many seconds is 4 minutes 14 seconds?
  32. 32.⏱️ A video is 355 seconds long. How long is that in minutes and seconds? (a) 5 min 55 s (b) 3 min 55 s (c) 5 min 25 s (d) 6 min 55 s
  33. 33.⏱️ Your video must be 180 seconds long. Your clips add up to 161 seconds. How many more seconds of video do you need?
  34. 34.⏱️ Your video must be 90 seconds long. Your clips add up to 74 seconds. How many more seconds of video do you need?
  35. 35.⏱️ A video has three clips of 18, 37 and 50 seconds. How long is the video (in seconds)?
  36. 36.⏱️ A video has three clips of 28, 20 and 29 seconds. How long is the video (in seconds)?
  37. 37.⏱️ How many seconds is 3 minutes 34 seconds?
  38. 38.⏱️ Your video must be 90 seconds long. Your clips add up to 28 seconds. How many more seconds of video do you need?
  39. 39.⏱️ How many seconds is 8 minutes 2 seconds?
  40. 40.⏱️ How many seconds is 4 minutes 22 seconds?

Answer key

  1. 25
  2. the sum of the clips
  3. 266
  4. 86
  5. half as long
  6. 136
  7. 5
  8. 67
  9. 105
  10. 60
  11. 146
  12. 8 min 20 s
  13. 34
  14. 95
  15. 129
  16. 7 min 35 s
  17. 54
  18. 2 min 10 s
  19. 14
  20. 9 min 50 s
  21. 36
  22. 8 min 35 s
  23. 6 min 5 s
  24. 130
  25. 15
  26. 80
  27. 9
  28. 4 min 40 s
  29. 77
  30. 3 min 25 s
  31. 254
  32. 5 min 55 s
  33. 19
  34. 16
  35. 105
  36. 77
  37. 214
  38. 62
  39. 482
  40. 262

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