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Video Editing Worksheet: Video Length

Animation and design lesson 21: Video length sums · Set 82 · 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.⏱️ How many seconds are in 1 minute? (a) 30 (b) 100 (c) 60 (d) 10
  2. 2.⏱️ A video has three clips of 58, 53 and 43 seconds. How long is the video (in seconds)?
  3. 3.⏱️ An 8-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, 21 and 47 seconds. How long is the video (in seconds)?
  5. 5.⏱️ A video has three clips of 26, 16 and 8 seconds. How long is the video (in seconds)?
  6. 6.⏱️ A video has three clips of 54, 11 and 47 seconds. How long is the video (in seconds)?
  7. 7.⏱️ A 9-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  8. 8.⏱️ A 21-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  9. 9.⏱️ A 29-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  10. 10.⏱️ How many seconds is 2 minutes 17 seconds?
  11. 11.⏱️ A video has three clips of 46, 50 and 56 seconds. How long is the video (in seconds)?
  12. 12.⏱️ A video has three clips of 53, 17 and 33 seconds. How long is the video (in seconds)?
  13. 13.⏱️ A video has three clips of 43, 47 and 51 seconds. How long is the video (in seconds)?
  14. 14.⏱️ Your video must be 120 seconds long. Your clips add up to 19 seconds. How many more seconds of video do you need?
  15. 15.⏱️ A 3-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  16. 16.⏱️ A 120-second clip is sped up to 4× speed. How long does it last now (in seconds)?
  17. 17.⏱️ Your video must be 120 seconds long. Your clips add up to 34 seconds. How many more seconds of video do you need?
  18. 18.⏱️ A 23-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  19. 19.⏱️ A video is 440 seconds long. How long is that in minutes and seconds? (a) 8 min 20 s (b) 4 min 40 s (c) 7 min 20 s (d) 7 min 50 s
  20. 20.⏱️ How many seconds is 8 minutes 2 seconds?
  21. 21.⏱️ A 5-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  22. 22.⏱️ A video has three clips of 38, 8 and 23 seconds. How long is the video (in seconds)?
  23. 23.⏱️ How many seconds is 1 minute 41 seconds?
  24. 24.⏱️ How many seconds is 6 minutes 48 seconds?
  25. 25.⏱️ Your video must be 90 seconds long. Your clips add up to 75 seconds. How many more seconds of video do you need?
  26. 26.⏱️ A video is 495 seconds long. How long is that in minutes and seconds? (a) 8 min 15 s (b) 4 min 95 s (c) 8 min 45 s (d) 9 min 15 s
  27. 27.⏱️ A 16-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  28. 28.⏱️ A video has three clips of 48, 16 and 17 seconds. How long is the video (in seconds)?
  29. 29.⏱️ When you put clips one after another, the video length is … (a) the longest clip (b) the sum of the clips (c) always 1 minute (d) the shortest clip
  30. 30.⏱️ A video has three clips of 12, 25 and 13 seconds. How long is the video (in seconds)?
  31. 31.⏱️ A video has three clips of 48, 40 and 43 seconds. How long is the video (in seconds)?
  32. 32.⏱️ Speeding a clip up to 2× makes it … (a) half as long (b) silent (c) the same length (d) twice as long
  33. 33.⏱️ A 19-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  34. 34.⏱️ How many seconds is 2 minutes 34 seconds?
  35. 35.⏱️ How many seconds is 9 minutes 20 seconds?
  36. 36.⏱️ How many seconds is 6 minutes 46 seconds?
  37. 37.⏱️ Your video must be 90 seconds long. Your clips add up to 71 seconds. How many more seconds of video do you need?
  38. 38.⏱️ How many seconds is 4 minutes 34 seconds?
  39. 39.⏱️ A video has three clips of 22, 18 and 7 seconds. How long is the video (in seconds)?
  40. 40.⏱️ A video is 355 seconds long. How long is that in minutes and seconds? (a) 5 min 25 s (b) 5 min 55 s (c) 3 min 55 s (d) 6 min 55 s

Answer key

  1. 60
  2. 154
  3. 16
  4. 85
  5. 50
  6. 112
  7. 18
  8. 42
  9. 58
  10. 137
  11. 152
  12. 103
  13. 141
  14. 101
  15. 6
  16. 30
  17. 86
  18. 46
  19. 7 min 20 s
  20. 482
  21. 10
  22. 69
  23. 101
  24. 408
  25. 15
  26. 8 min 15 s
  27. 8
  28. 81
  29. the sum of the clips
  30. 50
  31. 131
  32. half as long
  33. 38
  34. 154
  35. 560
  36. 406
  37. 19
  38. 274
  39. 47
  40. 5 min 55 s

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