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Video Editing Worksheet: Video Length

Animation and design lesson 21: Video length sums · Set 335 · 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 300 seconds long. How long is that in minutes and seconds? (a) 3 min 0 s (b) 5 min 30 s (c) 6 min 0 s (d) 5 min 0 s
  2. 2.⏱️ A video has three clips of 55, 41 and 46 seconds. How long is the video (in seconds)?
  3. 3.⏱️ Speeding a clip up to 2× makes it … (a) the same length (b) silent (c) twice as long (d) half as long
  4. 4.⏱️ A video has three clips of 25, 17 and 59 seconds. How long is the video (in seconds)?
  5. 5.⏱️ A 144-second clip is sped up to 4× speed. How long does it last now (in seconds)?
  6. 6.⏱️ A video is 520 seconds long. How long is that in minutes and seconds? (a) 8 min 10 s (b) 9 min 40 s (c) 5 min 20 s (d) 8 min 40 s
  7. 7.⏱️ A video is 90 seconds long. How long is that in minutes and seconds? (a) 2 min 30 s (b) 3 min 30 s (c) 1 min 30 s (d) 1 min 0 s
  8. 8.⏱️ Your video must be 120 seconds long. Your clips add up to 93 seconds. How many more seconds of video do you need?
  9. 9.⏱️ How many seconds is 6 minutes 51 seconds?
  10. 10.⏱️ A video is 380 seconds long. How long is that in minutes and seconds? (a) 6 min 50 s (b) 7 min 20 s (c) 6 min 20 s (d) 3 min 80 s
  11. 11.⏱️ When you put clips one after another, the video length is … (a) the longest clip (b) the shortest clip (c) always 1 minute (d) the sum of the clips
  12. 12.⏱️ How many seconds are in 1 minute? (a) 30 (b) 60 (c) 10 (d) 100
  13. 13.⏱️ Your video must be 120 seconds long. Your clips add up to 39 seconds. How many more seconds of video do you need?
  14. 14.⏱️ A 30-second clip is sped up to 3× speed. How long does it last now (in seconds)?
  15. 15.⏱️ How many seconds is 6 minutes 23 seconds?
  16. 16.⏱️ A video has three clips of 52, 55 and 60 seconds. How long is the video (in seconds)?
  17. 17.⏱️ How many seconds is 6 minutes 46 seconds?
  18. 18.⏱️ A 14-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  19. 19.⏱️ An 11-second clip is slowed to half speed (slow motion). 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) 4 min 10 s (b) 3 min 40 s (c) 1 min 90 s (d) 3 min 10 s
  21. 21.⏱️ How many seconds is 8 minutes 12 seconds?
  22. 22.⏱️ A video is 255 seconds long. How long is that in minutes and seconds? (a) 5 min 15 s (b) 4 min 15 s (c) 4 min 45 s (d) 2 min 55 s
  23. 23.⏱️ How many seconds is 3 minutes 13 seconds?
  24. 24.⏱️ A 56-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  25. 25.⏱️ A 12-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  26. 26.⏱️ Your video must be 60 seconds long. Your clips add up to 44 seconds. How many more seconds of video do you need?
  27. 27.⏱️ A video is 370 seconds long. How long is that in minutes and seconds? (a) 7 min 10 s (b) 6 min 40 s (c) 3 min 70 s (d) 6 min 10 s
  28. 28.⏱️ Your video must be 60 seconds long. Your clips add up to 40 seconds. How many more seconds of video do you need?
  29. 29.⏱️ A video has three clips of 26, 48 and 59 seconds. How long is the video (in seconds)?
  30. 30.⏱️ A video has three clips of 56, 33 and 12 seconds. How long is the video (in seconds)?
  31. 31.⏱️ How many seconds is 5 minutes 9 seconds?
  32. 32.⏱️ How many seconds is 7 minutes 37 seconds?
  33. 33.⏱️ How many seconds is 1 minute 10 seconds?
  34. 34.⏱️ Your video must be 60 seconds long. Your clips add up to 7 seconds. How many more seconds of video do you need?
  35. 35.⏱️ A video has three clips of 30, 23 and 36 seconds. How long is the video (in seconds)?
  36. 36.⏱️ How many seconds is 2 minutes 9 seconds?
  37. 37.⏱️ How many seconds is 5 minutes 53 seconds?
  38. 38.⏱️ A 108-second clip is sped up to 3× speed. How long does it last now (in seconds)?
  39. 39.⏱️ A 24-second clip is sped up to 3× speed. How long does it last now (in seconds)?
  40. 40.⏱️ Your video must be 90 seconds long. Your clips add up to 12 seconds. How many more seconds of video do you need?

Answer key

  1. 5 min 0 s
  2. 142
  3. half as long
  4. 101
  5. 36
  6. 8 min 40 s
  7. 1 min 30 s
  8. 27
  9. 411
  10. 6 min 20 s
  11. the sum of the clips
  12. 60
  13. 81
  14. 10
  15. 383
  16. 167
  17. 406
  18. 7
  19. 22
  20. 3 min 10 s
  21. 492
  22. 4 min 15 s
  23. 193
  24. 28
  25. 24
  26. 16
  27. 6 min 10 s
  28. 20
  29. 133
  30. 101
  31. 309
  32. 457
  33. 70
  34. 53
  35. 89
  36. 129
  37. 353
  38. 36
  39. 8
  40. 78

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