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Video Editing Worksheet: Video Length

Animation and design lesson 21: Video length sums · Set 99 · 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.⏱️ Speeding a clip up to 2× makes it … (a) the same length (b) twice as long (c) half as long (d) silent
  2. 2.⏱️ When you put clips one after another, the video length is … (a) always 1 minute (b) the longest clip (c) the shortest clip (d) the sum of the clips
  3. 3.⏱️ A 29-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  4. 4.⏱️ How many seconds are in 1 minute? (a) 30 (b) 60 (c) 10 (d) 100
  5. 5.⏱️ How many seconds is 7 minutes 49 seconds?
  6. 6.⏱️ An 80-second clip is sped up to 4× speed. How long does it last now (in seconds)?
  7. 7.⏱️ A video has three clips of 5, 23 and 19 seconds. How long is the video (in seconds)?
  8. 8.⏱️ Your video must be 120 seconds long. Your clips add up to 31 seconds. How many more seconds of video do you need?
  9. 9.⏱️ How many seconds is 1 minute 39 seconds?
  10. 10.⏱️ A video has three clips of 43, 52 and 44 seconds. How long is the video (in seconds)?
  11. 11.⏱️ A video is 180 seconds long. How long is that in minutes and seconds? (a) 3 min 0 s (b) 3 min 30 s (c) 1 min 80 s (d) 4 min 0 s
  12. 12.⏱️ A 10-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  13. 13.⏱️ A 54-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  14. 14.⏱️ A video has three clips of 13, 30 and 8 seconds. How long is the video (in seconds)?
  15. 15.⏱️ Your video must be 60 seconds long. Your clips add up to 12 seconds. How many more seconds of video do you need?
  16. 16.⏱️ A 21-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  17. 17.⏱️ A video is 515 seconds long. How long is that in minutes and seconds? (a) 8 min 5 s (b) 9 min 35 s (c) 5 min 15 s (d) 8 min 35 s
  18. 18.⏱️ A 19-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  19. 19.⏱️ A 14-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  20. 20.⏱️ Your video must be 180 seconds long. Your clips add up to 160 seconds. How many more seconds of video do you need?
  21. 21.⏱️ How many seconds is 8 minutes 7 seconds?
  22. 22.⏱️ A 12-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  23. 23.⏱️ A video is 420 seconds long. How long is that in minutes and seconds? (a) 8 min 0 s (b) 7 min 30 s (c) 4 min 20 s (d) 7 min 0 s
  24. 24.⏱️ How many seconds is 1 minute 54 seconds?
  25. 25.⏱️ How many seconds is 3 minutes 10 seconds?
  26. 26.⏱️ A video has three clips of 17, 11 and 37 seconds. How long is the video (in seconds)?
  27. 27.⏱️ How many seconds is 4 minutes 3 seconds?
  28. 28.⏱️ A video has three clips of 20, 25 and 38 seconds. How long is the video (in seconds)?
  29. 29.⏱️ A video is 575 seconds long. How long is that in minutes and seconds? (a) 9 min 35 s (b) 10 min 35 s (c) 5 min 75 s (d) 9 min 5 s
  30. 30.⏱️ A video is 185 seconds long. How long is that in minutes and seconds? (a) 4 min 5 s (b) 1 min 85 s (c) 3 min 5 s (d) 3 min 35 s
  31. 31.⏱️ A 70-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  32. 32.⏱️ A 76-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  33. 33.⏱️ How many seconds is 6 minutes 19 seconds?
  34. 34.⏱️ A 64-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  35. 35.⏱️ A 30-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  36. 36.⏱️ Your video must be 120 seconds long. Your clips add up to 58 seconds. How many more seconds of video do you need?
  37. 37.⏱️ A video is 530 seconds long. How long is that in minutes and seconds? (a) 8 min 50 s (b) 9 min 50 s (c) 8 min 20 s (d) 5 min 30 s
  38. 38.⏱️ A 13-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  39. 39.⏱️ An 11-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  40. 40.⏱️ Your video must be 120 seconds long. Your clips add up to 27 seconds. How many more seconds of video do you need?

Answer key

  1. half as long
  2. the sum of the clips
  3. 58
  4. 60
  5. 469
  6. 20
  7. 47
  8. 89
  9. 99
  10. 139
  11. 3 min 0 s
  12. 20
  13. 27
  14. 51
  15. 48
  16. 42
  17. 8 min 35 s
  18. 38
  19. 28
  20. 20
  21. 487
  22. 24
  23. 7 min 0 s
  24. 114
  25. 190
  26. 65
  27. 243
  28. 83
  29. 9 min 35 s
  30. 3 min 5 s
  31. 35
  32. 38
  33. 379
  34. 32
  35. 60
  36. 62
  37. 8 min 50 s
  38. 26
  39. 22
  40. 93

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