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Video Editing Worksheet: Video Length

Animation and design lesson 21: Video length sums · Set 340 · 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 17-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  2. 2.⏱️ How many seconds is 4 minutes 45 seconds?
  3. 3.⏱️ How many seconds is 1 minute 10 seconds?
  4. 4.⏱️ How many seconds is 1 minute 22 seconds?
  5. 5.⏱️ A video has three clips of 60, 24 and 13 seconds. How long is the video (in seconds)?
  6. 6.⏱️ How many seconds is 8 minutes 55 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 24-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  9. 9.⏱️ How many seconds are in 1 minute? (a) 10 (b) 100 (c) 30 (d) 60
  10. 10.⏱️ A 111-second clip is sped up to 3× speed. How long does it last now (in seconds)?
  11. 11.⏱️ How many seconds is 4 minutes 14 seconds?
  12. 12.⏱️ A video has three clips of 53, 17 and 51 seconds. How long is the video (in seconds)?
  13. 13.⏱️ A video has three clips of 27, 28 and 38 seconds. How long is the video (in seconds)?
  14. 14.⏱️ A video has three clips of 24, 46 and 9 seconds. How long is the video (in seconds)?
  15. 15.⏱️ How many seconds is 6 minutes 42 seconds?
  16. 16.⏱️ A video has three clips of 33, 44 and 49 seconds. How long is the video (in seconds)?
  17. 17.⏱️ How many seconds is 4 minutes 35 seconds?
  18. 18.⏱️ An 18-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  19. 19.⏱️ How many seconds is 6 minutes 29 seconds?
  20. 20.⏱️ A video has three clips of 41, 42 and 38 seconds. How long is the video (in seconds)?
  21. 21.⏱️ Speeding a clip up to 2× makes it … (a) the same length (b) silent (c) half as long (d) twice as long
  22. 22.⏱️ A video has three clips of 6, 37 and 47 seconds. How long is the video (in seconds)?
  23. 23.⏱️ When you put clips one after another, the video length is … (a) the longest clip (b) the shortest clip (c) always 1 minute (d) the sum of the clips
  24. 24.⏱️ How many seconds is 7 minutes 32 seconds?
  25. 25.⏱️ How many seconds is 2 minutes 58 seconds?
  26. 26.⏱️ A video is 205 seconds long. How long is that in minutes and seconds? (a) 4 min 25 s (b) 3 min 55 s (c) 2 min 5 s (d) 3 min 25 s
  27. 27.⏱️ A 96-second clip is sped up to 4× speed. How long does it last now (in seconds)?
  28. 28.⏱️ How many seconds is 3 minutes 22 seconds?
  29. 29.⏱️ A video is 265 seconds long. How long is that in minutes and seconds? (a) 2 min 65 s (b) 5 min 25 s (c) 4 min 25 s (d) 4 min 55 s
  30. 30.⏱️ A video is 375 seconds long. How long is that in minutes and seconds? (a) 7 min 15 s (b) 6 min 15 s (c) 6 min 45 s (d) 3 min 75 s
  31. 31.⏱️ A video has three clips of 21, 52 and 14 seconds. How long is the video (in seconds)?
  32. 32.⏱️ A 4-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  33. 33.⏱️ Your video must be 60 seconds long. Your clips add up to 22 seconds. How many more seconds of video do you need?
  34. 34.⏱️ A video has three clips of 44, 13 and 17 seconds. How long is the video (in seconds)?
  35. 35.⏱️ A 120-second clip is sped up to 3× speed. How long does it last now (in seconds)?
  36. 36.⏱️ A 20-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  37. 37.⏱️ A 14-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 16, 43 and 39 seconds. How long is the video (in seconds)?
  39. 39.⏱️ Your video must be 90 seconds long. Your clips add up to 63 seconds. How many more seconds of video do you need?
  40. 40.⏱️ How many seconds is 1 minute 47 seconds?

Answer key

  1. 34
  2. 285
  3. 70
  4. 82
  5. 97
  6. 535
  7. 18
  8. 48
  9. 60
  10. 37
  11. 254
  12. 121
  13. 93
  14. 79
  15. 402
  16. 126
  17. 275
  18. 9
  19. 389
  20. 121
  21. half as long
  22. 90
  23. the sum of the clips
  24. 452
  25. 178
  26. 3 min 25 s
  27. 24
  28. 202
  29. 4 min 25 s
  30. 6 min 15 s
  31. 87
  32. 8
  33. 38
  34. 74
  35. 40
  36. 40
  37. 28
  38. 98
  39. 27
  40. 107

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