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Video Editing Worksheet: Video Length

Animation and design lesson 21: Video length sums · Set 88 · 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 23-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  2. 2.⏱️ A 58-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  3. 3.⏱️ A video has three clips of 10, 13 and 29 seconds. How long is the video (in seconds)?
  4. 4.⏱️ A video is 185 seconds long. How long is that in minutes and seconds? (a) 3 min 5 s (b) 1 min 85 s (c) 4 min 5 s (d) 3 min 35 s
  5. 5.⏱️ Your video must be 90 seconds long. Your clips add up to 10 seconds. How many more seconds of video do you need?
  6. 6.⏱️ Speeding a clip up to 2× makes it … (a) twice as long (b) the same length (c) half as long (d) silent
  7. 7.⏱️ A video has three clips of 13, 53 and 8 seconds. How long is the video (in seconds)?
  8. 8.⏱️ Your video must be 90 seconds long. Your clips add up to 40 seconds. How many more seconds of video do you need?
  9. 9.⏱️ A 42-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  10. 10.⏱️ A 27-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  11. 11.⏱️ A 30-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  12. 12.⏱️ A 48-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  13. 13.⏱️ A 39-second clip is sped up to 3× speed. How long does it last now (in seconds)?
  14. 14.⏱️ 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
  15. 15.⏱️ A video is 290 seconds long. How long is that in minutes and seconds? (a) 4 min 20 s (b) 5 min 50 s (c) 4 min 50 s (d) 2 min 90 s
  16. 16.⏱️ How many seconds is 8 minutes 45 seconds?
  17. 17.⏱️ A video has three clips of 53, 14 and 5 seconds. How long is the video (in seconds)?
  18. 18.⏱️ How many seconds are in 1 minute? (a) 60 (b) 100 (c) 10 (d) 30
  19. 19.⏱️ A 10-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  20. 20.⏱️ How many seconds is 9 minutes 47 seconds?
  21. 21.⏱️ A 75-second clip is sped up to 3× speed. How long does it last now (in seconds)?
  22. 22.⏱️ A 112-second clip is sped up to 4× speed. How long does it last now (in seconds)?
  23. 23.⏱️ How many seconds is 4 minutes 37 seconds?
  24. 24.⏱️ Your video must be 120 seconds long. Your clips add up to 34 seconds. How many more seconds of video do you need?
  25. 25.⏱️ A video is 205 seconds long. How long is that in minutes and seconds? (a) 3 min 25 s (b) 3 min 55 s (c) 2 min 5 s (d) 4 min 25 s
  26. 26.⏱️ How many seconds is 3 minutes 37 seconds?
  27. 27.⏱️ Your video must be 60 seconds long. Your clips add up to 37 seconds. How many more seconds of video do you need?
  28. 28.⏱️ How many seconds is 3 minutes 51 seconds?
  29. 29.⏱️ A video has three clips of 53, 9 and 43 seconds. How long is the video (in seconds)?
  30. 30.⏱️ A 52-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  31. 31.⏱️ A video has three clips of 30, 40 and 57 seconds. How long is the video (in seconds)?
  32. 32.⏱️ A 120-second clip is sped up to 3× speed. How long does it last now (in seconds)?
  33. 33.⏱️ A video is 80 seconds long. How long is that in minutes and seconds? (a) 3 min 20 s (b) 2 min 20 s (c) 1 min 50 s (d) 1 min 20 s
  34. 34.⏱️ A 24-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  35. 35.⏱️ A 29-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  36. 36.⏱️ A video is 60 seconds long. How long is that in minutes and seconds? (a) 2 min 0 s (b) 1 min 0 s (c) 3 min 0 s (d) 1 min 30 s
  37. 37.⏱️ How many seconds is 2 minutes 6 seconds?
  38. 38.⏱️ How many seconds is 2 minutes 9 seconds?
  39. 39.⏱️ A video is 380 seconds long. How long is that in minutes and seconds? (a) 7 min 20 s (b) 6 min 20 s (c) 6 min 50 s (d) 3 min 80 s
  40. 40.⏱️ How many seconds is 8 minutes 43 seconds?

Answer key

  1. 46
  2. 29
  3. 52
  4. 3 min 5 s
  5. 80
  6. half as long
  7. 74
  8. 50
  9. 21
  10. 54
  11. 60
  12. 24
  13. 13
  14. the sum of the clips
  15. 4 min 50 s
  16. 525
  17. 72
  18. 60
  19. 20
  20. 587
  21. 25
  22. 28
  23. 277
  24. 86
  25. 3 min 25 s
  26. 217
  27. 23
  28. 231
  29. 105
  30. 26
  31. 127
  32. 40
  33. 1 min 20 s
  34. 48
  35. 58
  36. 1 min 0 s
  37. 126
  38. 129
  39. 6 min 20 s
  40. 523

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