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Video Editing Worksheet: Video Length

Animation and design lesson 21: Video length sums · Set 51 · 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 has three clips of 24, 19 and 20 seconds. How long is the video (in seconds)?
  2. 2.⏱️ A 60-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  3. 3.⏱️ How many seconds are in 1 minute? (a) 100 (b) 30 (c) 10 (d) 60
  4. 4.⏱️ A 104-second clip is sped up to 4× speed. How long does it last now (in seconds)?
  5. 5.⏱️ How many seconds is 3 minutes 31 seconds?
  6. 6.⏱️ Your video must be 60 seconds long. Your clips add up to 27 seconds. How many more seconds of video do you need?
  7. 7.⏱️ A video is 460 seconds long. How long is that in minutes and seconds? (a) 8 min 40 s (b) 7 min 40 s (c) 7 min 10 s (d) 4 min 60 s
  8. 8.⏱️ A video has three clips of 30, 55 and 7 seconds. How long is the video (in seconds)?
  9. 9.⏱️ How many seconds is 4 minutes 8 seconds?
  10. 10.⏱️ A 7-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  11. 11.⏱️ A video has three clips of 6, 31 and 24 seconds. How long is the video (in seconds)?
  12. 12.⏱️ How many seconds is 5 minutes 11 seconds?
  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.⏱️ How many seconds is 5 minutes 9 seconds?
  15. 15.⏱️ How many seconds is 5 minutes 18 seconds?
  16. 16.⏱️ A video is 115 seconds long. How long is that in minutes and seconds? (a) 2 min 55 s (b) 1 min 15 s (c) 1 min 25 s (d) 1 min 55 s
  17. 17.⏱️ How many seconds is 9 minutes 54 seconds?
  18. 18.⏱️ How many seconds is 2 minutes 57 seconds?
  19. 19.⏱️ A video is 475 seconds long. How long is that in minutes and seconds? (a) 8 min 55 s (b) 7 min 55 s (c) 7 min 25 s (d) 4 min 75 s
  20. 20.⏱️ When you put clips one after another, the video length is … (a) the shortest clip (b) the sum of the clips (c) always 1 minute (d) the longest clip
  21. 21.⏱️ A 10-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  22. 22.⏱️ Your video must be 90 seconds long. Your clips add up to 6 seconds. How many more seconds of video do you need?
  23. 23.⏱️ A video has three clips of 11, 22 and 53 seconds. How long is the video (in seconds)?
  24. 24.⏱️ A video is 440 seconds long. How long is that in minutes and seconds? (a) 8 min 20 s (b) 7 min 20 s (c) 7 min 50 s (d) 4 min 40 s
  25. 25.⏱️ Your video must be 60 seconds long. Your clips add up to 20 seconds. How many more seconds of video do you need?
  26. 26.⏱️ A video is 185 seconds long. How long is that in minutes and seconds? (a) 4 min 5 s (b) 3 min 35 s (c) 1 min 85 s (d) 3 min 5 s
  27. 27.⏱️ How many seconds is 2 minutes 17 seconds?
  28. 28.⏱️ A 25-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  29. 29.⏱️ A 28-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  30. 30.⏱️ Speeding a clip up to 2× makes it … (a) the same length (b) silent (c) half as long (d) twice as long
  31. 31.⏱️ A 24-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  32. 32.⏱️ A video has three clips of 31, 21 and 39 seconds. How long is the video (in seconds)?
  33. 33.⏱️ Your video must be 120 seconds long. Your clips add up to 15 seconds. How many more seconds of video do you need?
  34. 34.⏱️ A video is 195 seconds long. How long is that in minutes and seconds? (a) 3 min 45 s (b) 4 min 15 s (c) 3 min 15 s (d) 1 min 95 s
  35. 35.⏱️ How many seconds is 3 minutes 5 seconds?
  36. 36.⏱️ A video is 125 seconds long. How long is that in minutes and seconds? (a) 2 min 35 s (b) 1 min 25 s (c) 3 min 5 s (d) 2 min 5 s
  37. 37.⏱️ A 23-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  38. 38.⏱️ A video has three clips of 47, 6 and 31 seconds. How long is the video (in seconds)?
  39. 39.⏱️ Your video must be 120 seconds long. Your clips add up to 102 seconds. How many more seconds of video do you need?
  40. 40.⏱️ How many seconds is 7 minutes 41 seconds?

Answer key

  1. 63
  2. 30
  3. 60
  4. 26
  5. 211
  6. 33
  7. 7 min 40 s
  8. 92
  9. 248
  10. 14
  11. 61
  12. 311
  13. 31
  14. 309
  15. 318
  16. 1 min 55 s
  17. 594
  18. 177
  19. 7 min 55 s
  20. the sum of the clips
  21. 20
  22. 84
  23. 86
  24. 7 min 20 s
  25. 40
  26. 3 min 5 s
  27. 137
  28. 50
  29. 14
  30. half as long
  31. 48
  32. 91
  33. 105
  34. 3 min 15 s
  35. 185
  36. 2 min 5 s
  37. 46
  38. 84
  39. 18
  40. 461

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