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Video Editing Worksheet: Video Length

Animation and design lesson 21: Video length sums · Set 171 · 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.⏱️ When you put clips one after another, the video length is … (a) always 1 minute (b) the shortest clip (c) the sum of the clips (d) the longest clip
  2. 2.⏱️ Your video must be 180 seconds long. Your clips add up to 38 seconds. How many more seconds of video do you need?
  3. 3.⏱️ A video has three clips of 16, 39 and 41 seconds. How long is the video (in seconds)?
  4. 4.⏱️ How many seconds are in 1 minute? (a) 10 (b) 60 (c) 30 (d) 100
  5. 5.⏱️ A video has three clips of 18, 12 and 33 seconds. How long is the video (in seconds)?
  6. 6.⏱️ A 4-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  7. 7.⏱️ How many seconds is 1 minute 49 seconds?
  8. 8.⏱️ How many seconds is 1 minute 7 seconds?
  9. 9.⏱️ A video is 215 seconds long. How long is that in minutes and seconds? (a) 3 min 5 s (b) 3 min 35 s (c) 4 min 35 s (d) 2 min 15 s
  10. 10.⏱️ How many seconds is 1 minute 57 seconds?
  11. 11.⏱️ An 11-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  12. 12.⏱️ A video has three clips of 23, 27 and 33 seconds. How long is the video (in seconds)?
  13. 13.⏱️ A 114-second clip is sped up to 3× speed. How long does it last now (in seconds)?
  14. 14.⏱️ A video is 540 seconds long. How long is that in minutes and seconds? (a) 10 min 0 s (b) 9 min 30 s (c) 9 min 0 s (d) 5 min 40 s
  15. 15.⏱️ Speeding a clip up to 2× makes it … (a) silent (b) half as long (c) twice as long (d) the same length
  16. 16.⏱️ A video has three clips of 27, 55 and 36 seconds. How long is the video (in seconds)?
  17. 17.⏱️ A 56-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  18. 18.⏱️ How many seconds is 2 minutes 17 seconds?
  19. 19.⏱️ A video has three clips of 37, 36 and 19 seconds. How long is the video (in seconds)?
  20. 20.⏱️ A 28-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  21. 21.⏱️ A video is 90 seconds long. How long is that in minutes and seconds? (a) 2 min 30 s (b) 1 min 30 s (c) 1 min 0 s (d) 3 min 30 s
  22. 22.⏱️ Your video must be 90 seconds long. Your clips add up to 44 seconds. How many more seconds of video do you need?
  23. 23.⏱️ How many seconds is 9 minutes 14 seconds?
  24. 24.⏱️ A video has three clips of 29, 29 and 17 seconds. How long is the video (in seconds)?
  25. 25.⏱️ How many seconds is 7 minutes 10 seconds?
  26. 26.⏱️ A 10-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  27. 27.⏱️ How many seconds is 4 minutes 5 seconds?
  28. 28.⏱️ How many seconds is 3 minutes 26 seconds?
  29. 29.⏱️ Your video must be 180 seconds long. Your clips add up to 35 seconds. How many more seconds of video do you need?
  30. 30.⏱️ Your video must be 60 seconds long. Your clips add up to 45 seconds. How many more seconds of video do you need?
  31. 31.⏱️ A 14-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  32. 32.⏱️ A 20-second clip is sped up to 4× speed. How long does it last now (in seconds)?
  33. 33.⏱️ A video is 240 seconds long. How long is that in minutes and seconds? (a) 4 min 0 s (b) 4 min 30 s (c) 2 min 40 s (d) 5 min 0 s
  34. 34.⏱️ How many seconds is 9 minutes 48 seconds?
  35. 35.⏱️ A 3-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  36. 36.⏱️ How many seconds is 9 minutes 4 seconds?
  37. 37.⏱️ 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) 8 min 35 s (d) 7 min 35 s
  38. 38.⏱️ How many seconds is 3 minutes 50 seconds?
  39. 39.⏱️ A video is 270 seconds long. How long is that in minutes and seconds? (a) 5 min 30 s (b) 2 min 70 s (c) 4 min 0 s (d) 4 min 30 s
  40. 40.⏱️ A video has three clips of 21, 41 and 42 seconds. How long is the video (in seconds)?

Answer key

  1. the sum of the clips
  2. 142
  3. 96
  4. 60
  5. 63
  6. 8
  7. 109
  8. 67
  9. 3 min 35 s
  10. 117
  11. 22
  12. 83
  13. 38
  14. 9 min 0 s
  15. half as long
  16. 118
  17. 28
  18. 137
  19. 92
  20. 56
  21. 1 min 30 s
  22. 46
  23. 554
  24. 75
  25. 430
  26. 20
  27. 245
  28. 206
  29. 145
  30. 15
  31. 28
  32. 5
  33. 4 min 0 s
  34. 588
  35. 6
  36. 544
  37. 7 min 35 s
  38. 230
  39. 4 min 30 s
  40. 104

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