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Video Editing Worksheet: Video Length

Animation and design lesson 21: Video length sums · Set 236 · 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 20-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  2. 2.⏱️ A 20-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  3. 3.⏱️ A 32-second clip is sped up to 4× speed. How long does it last now (in seconds)?
  4. 4.⏱️ A 21-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  5. 5.⏱️ A video has three clips of 16, 5 and 5 seconds. How long is the video (in seconds)?
  6. 6.⏱️ A 42-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  7. 7.⏱️ How many seconds is 6 minutes 41 seconds?
  8. 8.⏱️ A 4-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  9. 9.⏱️ Your video must be 60 seconds long. Your clips add up to 49 seconds. How many more seconds of video do you need?
  10. 10.⏱️ A video has three clips of 58, 43 and 13 seconds. How long is the video (in seconds)?
  11. 11.⏱️ A 9-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  12. 12.⏱️ A video has three clips of 13, 58 and 7 seconds. How long is the video (in seconds)?
  13. 13.⏱️ A 14-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  14. 14.⏱️ A 48-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  15. 15.⏱️ A 26-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  16. 16.⏱️ A 50-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  17. 17.⏱️ An 18-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  18. 18.⏱️ How many seconds is 1 minute 2 seconds?
  19. 19.⏱️ A 15-second clip is sped up to 3× speed. How long does it last now (in seconds)?
  20. 20.⏱️ How many seconds is 9 minutes 5 seconds?
  21. 21.⏱️ A 7-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  22. 22.⏱️ A video is 380 seconds long. How long is that in minutes and seconds? (a) 6 min 50 s (b) 6 min 20 s (c) 7 min 20 s (d) 3 min 80 s
  23. 23.⏱️ A video has three clips of 18, 58 and 23 seconds. How long is the video (in seconds)?
  24. 24.⏱️ How many seconds is 9 minutes 12 seconds?
  25. 25.⏱️ Your video must be 60 seconds long. Your clips add up to 22 seconds. How many more seconds of video do you need?
  26. 26.⏱️ How many seconds is 4 minutes 5 seconds?
  27. 27.⏱️ How many seconds are in 1 minute? (a) 10 (b) 30 (c) 100 (d) 60
  28. 28.⏱️ A 26-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  29. 29.⏱️ A 25-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 23, 19 and 12 seconds. How long is the video (in seconds)?
  31. 31.⏱️ When you put clips one after another, the video length is … (a) the longest clip (b) always 1 minute (c) the sum of the clips (d) the shortest clip
  32. 32.⏱️ Your video must be 90 seconds long. Your clips add up to 74 seconds. How many more seconds of video do you need?
  33. 33.⏱️ How many seconds is 2 minutes 6 seconds?
  34. 34.⏱️ A video is 60 seconds long. How long is that in minutes and seconds? (a) 1 min 30 s (b) 2 min 0 s (c) 3 min 0 s (d) 1 min 0 s
  35. 35.⏱️ How many seconds is 5 minutes 8 seconds?
  36. 36.⏱️ A video has three clips of 39, 52 and 29 seconds. How long is the video (in seconds)?
  37. 37.⏱️ Speeding a clip up to 2× makes it … (a) half as long (b) the same length (c) twice as long (d) silent
  38. 38.⏱️ A 68-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  39. 39.⏱️ Your video must be 120 seconds long. Your clips add up to 7 seconds. How many more seconds of video do you need?
  40. 40.⏱️ A 51-second clip is sped up to 3× speed. How long does it last now (in seconds)?

Answer key

  1. 10
  2. 40
  3. 8
  4. 42
  5. 26
  6. 21
  7. 401
  8. 8
  9. 11
  10. 114
  11. 18
  12. 78
  13. 28
  14. 24
  15. 13
  16. 25
  17. 36
  18. 62
  19. 5
  20. 545
  21. 14
  22. 6 min 20 s
  23. 99
  24. 552
  25. 38
  26. 245
  27. 60
  28. 52
  29. 50
  30. 54
  31. the sum of the clips
  32. 16
  33. 126
  34. 1 min 0 s
  35. 308
  36. 120
  37. half as long
  38. 34
  39. 113
  40. 17

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