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Video Editing Worksheet: Video Length

Animation and design lesson 21: Video length sums · Set 216 · 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 video has three clips of 9, 10 and 49 seconds. How long is the video (in seconds)?
  2. 2.⏱️ How many seconds are in 1 minute? (a) 100 (b) 60 (c) 30 (d) 10
  3. 3.⏱️ How many seconds is 4 minutes 5 seconds?
  4. 4.⏱️ Speeding a clip up to 2× makes it … (a) the same length (b) half as long (c) twice as long (d) silent
  5. 5.⏱️ A video is 155 seconds long. How long is that in minutes and seconds? (a) 3 min 35 s (b) 2 min 35 s (c) 1 min 55 s (d) 2 min 5 s
  6. 6.⏱️ How many seconds is 1 minute 35 seconds?
  7. 7.⏱️ Your video must be 90 seconds long. Your clips add up to 67 seconds. How many more seconds of video do you need?
  8. 8.⏱️ How many seconds is 1 minute 46 seconds?
  9. 9.⏱️ A video is 550 seconds long. How long is that in minutes and seconds? (a) 9 min 10 s (b) 10 min 10 s (c) 5 min 50 s (d) 9 min 40 s
  10. 10.⏱️ How many seconds is 8 minutes 4 seconds?
  11. 11.⏱️ A video has three clips of 23, 44 and 57 seconds. How long is the video (in seconds)?
  12. 12.⏱️ A 16-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 49, 8 and 8 seconds. How long is the video (in seconds)?
  14. 14.⏱️ A video is 570 seconds long. How long is that in minutes and seconds? (a) 9 min 30 s (b) 10 min 30 s (c) 9 min 0 s (d) 5 min 70 s
  15. 15.⏱️ A video has three clips of 47, 41 and 11 seconds. How long is the video (in seconds)?
  16. 16.⏱️ How many seconds is 9 minutes 53 seconds?
  17. 17.⏱️ A 7-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  18. 18.⏱️ How many seconds is 7 minutes 55 seconds?
  19. 19.⏱️ A 26-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 59 seconds?
  21. 21.⏱️ A video is 490 seconds long. How long is that in minutes and seconds? (a) 4 min 90 s (b) 8 min 10 s (c) 9 min 10 s (d) 8 min 40 s
  22. 22.⏱️ When you put clips one after another, the video length is … (a) the longest clip (b) always 1 minute (c) the shortest clip (d) the sum of the clips
  23. 23.⏱️ A video has three clips of 28, 19 and 46 seconds. How long is the video (in seconds)?
  24. 24.⏱️ How many seconds is 6 minutes 42 seconds?
  25. 25.⏱️ How many seconds is 2 minutes 59 seconds?
  26. 26.⏱️ How many seconds is 7 minutes 45 seconds?
  27. 27.⏱️ Your video must be 60 seconds long. Your clips add up to 13 seconds. How many more seconds of video do you need?
  28. 28.⏱️ A video has three clips of 30, 15 and 12 seconds. How long is the video (in seconds)?
  29. 29.⏱️ A 24-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  30. 30.⏱️ A video has three clips of 59, 32 and 18 seconds. How long is the video (in seconds)?
  31. 31.⏱️ A video has three clips of 45, 20 and 9 seconds. How long is the video (in seconds)?
  32. 32.⏱️ A 12-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  33. 33.⏱️ How many seconds is 6 minutes 52 seconds?
  34. 34.⏱️ An 84-second clip is sped up to 3× speed. How long does it last now (in seconds)?
  35. 35.⏱️ How many seconds is 5 minutes 23 seconds?
  36. 36.⏱️ A 12-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  37. 37.⏱️ A 156-second clip is sped up to 4× speed. How long does it last now (in seconds)?
  38. 38.⏱️ A video has three clips of 39, 28 and 16 seconds. How long is the video (in seconds)?
  39. 39.⏱️ A video has three clips of 53, 22 and 12 seconds. How long is the video (in seconds)?
  40. 40.⏱️ A video has three clips of 32, 60 and 35 seconds. How long is the video (in seconds)?

Answer key

  1. 68
  2. 60
  3. 245
  4. half as long
  5. 2 min 35 s
  6. 95
  7. 23
  8. 106
  9. 9 min 10 s
  10. 484
  11. 124
  12. 32
  13. 65
  14. 9 min 30 s
  15. 99
  16. 593
  17. 14
  18. 475
  19. 52
  20. 599
  21. 8 min 10 s
  22. the sum of the clips
  23. 93
  24. 402
  25. 179
  26. 465
  27. 47
  28. 57
  29. 48
  30. 109
  31. 74
  32. 24
  33. 412
  34. 28
  35. 323
  36. 6
  37. 39
  38. 83
  39. 87
  40. 127

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