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Video Editing Worksheet: Video Length

Animation and design lesson 21: Video length sums · Set 211 · 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 24-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 sum of the clips (b) the shortest clip (c) always 1 minute (d) the longest clip
  3. 3.⏱️ A 13-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  4. 4.⏱️ A video has three clips of 17, 44 and 24 seconds. How long is the video (in seconds)?
  5. 5.⏱️ A 56-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  6. 6.⏱️ Your video must be 180 seconds long. Your clips add up to 8 seconds. How many more seconds of video do you need?
  7. 7.⏱️ How many seconds is 2 minutes 17 seconds?
  8. 8.⏱️ How many seconds is 1 minute 24 seconds?
  9. 9.⏱️ A video has three clips of 6, 21 and 44 seconds. How long is the video (in seconds)?
  10. 10.⏱️ A 22-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  11. 11.⏱️ Speeding a clip up to 2× makes it … (a) the same length (b) twice as long (c) silent (d) half as long
  12. 12.⏱️ A 20-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  13. 13.⏱️ A video has three clips of 34, 6 and 48 seconds. How long is the video (in seconds)?
  14. 14.⏱️ How many seconds are in 1 minute? (a) 60 (b) 10 (c) 30 (d) 100
  15. 15.⏱️ An 88-second clip is sped up to 4× speed. How long does it last now (in seconds)?
  16. 16.⏱️ Your video must be 60 seconds long. Your clips add up to 17 seconds. How many more seconds of video do you need?
  17. 17.⏱️ A 5-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  18. 18.⏱️ A video is 380 seconds long. How long is that in minutes and seconds? (a) 6 min 50 s (b) 3 min 80 s (c) 7 min 20 s (d) 6 min 20 s
  19. 19.⏱️ Your video must be 120 seconds long. Your clips add up to 52 seconds. How many more seconds of video do you need?
  20. 20.⏱️ A video is 115 seconds long. How long is that in minutes and seconds? (a) 2 min 55 s (b) 1 min 55 s (c) 1 min 25 s (d) 1 min 15 s
  21. 21.⏱️ How many seconds is 8 minutes 49 seconds?
  22. 22.⏱️ A video has three clips of 18, 50 and 36 seconds. How long is the video (in seconds)?
  23. 23.⏱️ How many seconds is 8 minutes 27 seconds?
  24. 24.⏱️ A 12-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  25. 25.⏱️ A 120-second clip is sped up to 4× speed. How long does it last now (in seconds)?
  26. 26.⏱️ A 66-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  27. 27.⏱️ A 26-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  28. 28.⏱️ A video is 135 seconds long. How long is that in minutes and seconds? (a) 2 min 45 s (b) 3 min 15 s (c) 2 min 15 s (d) 1 min 35 s
  29. 29.⏱️ Your video must be 60 seconds long. Your clips add up to 40 seconds. How many more seconds of video do you need?
  30. 30.⏱️ A video is 210 seconds long. How long is that in minutes and seconds? (a) 4 min 30 s (b) 2 min 10 s (c) 3 min 0 s (d) 3 min 30 s
  31. 31.⏱️ A video has three clips of 57, 6 and 43 seconds. How long is the video (in seconds)?
  32. 32.⏱️ A 28-second clip is sped up to 4× speed. How long does it last now (in seconds)?
  33. 33.⏱️ A video is 225 seconds long. How long is that in minutes and seconds? (a) 2 min 25 s (b) 4 min 45 s (c) 3 min 15 s (d) 3 min 45 s
  34. 34.⏱️ A 20-second clip is sped up to 4× speed. How long does it last now (in seconds)?
  35. 35.⏱️ A video has three clips of 8, 49 and 34 seconds. How long is the video (in seconds)?
  36. 36.⏱️ How many seconds is 2 minutes 10 seconds?
  37. 37.⏱️ How many seconds is 9 minutes 23 seconds?
  38. 38.⏱️ A video is 385 seconds long. How long is that in minutes and seconds? (a) 6 min 25 s (b) 7 min 25 s (c) 6 min 55 s (d) 3 min 85 s
  39. 39.⏱️ A video is 540 seconds long. How long is that in minutes and seconds? (a) 9 min 30 s (b) 5 min 40 s (c) 10 min 0 s (d) 9 min 0 s
  40. 40.⏱️ A 6-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?

Answer key

  1. 8
  2. the sum of the clips
  3. 26
  4. 85
  5. 28
  6. 172
  7. 137
  8. 84
  9. 71
  10. 44
  11. half as long
  12. 40
  13. 88
  14. 60
  15. 22
  16. 43
  17. 10
  18. 6 min 20 s
  19. 68
  20. 1 min 55 s
  21. 529
  22. 104
  23. 507
  24. 24
  25. 30
  26. 33
  27. 52
  28. 2 min 15 s
  29. 20
  30. 3 min 30 s
  31. 106
  32. 7
  33. 3 min 45 s
  34. 5
  35. 91
  36. 130
  37. 563
  38. 6 min 25 s
  39. 9 min 0 s
  40. 12

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