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Video Editing Worksheet: Video Length

Animation and design lesson 21: Video length sums · Set 202 · 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 is 1 minute 12 seconds?
  2. 2.⏱️ Speeding a clip up to 2× makes it … (a) silent (b) the same length (c) twice as long (d) half as long
  3. 3.⏱️ A 56-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  4. 4.⏱️ A 62-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  5. 5.⏱️ A video has three clips of 40, 40 and 39 seconds. How long is the video (in seconds)?
  6. 6.⏱️ A video has three clips of 18, 22 and 5 seconds. How long is the video (in seconds)?
  7. 7.⏱️ How many seconds are in 1 minute? (a) 100 (b) 60 (c) 30 (d) 10
  8. 8.⏱️ A 52-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  9. 9.⏱️ A video has three clips of 6, 8 and 54 seconds. How long is the video (in seconds)?
  10. 10.⏱️ How many seconds is 2 minutes 20 seconds?
  11. 11.⏱️ A 22-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  12. 12.⏱️ How many seconds is 4 minutes 54 seconds?
  13. 13.⏱️ A video has three clips of 34, 45 and 47 seconds. How long is the video (in seconds)?
  14. 14.⏱️ A video is 385 seconds long. How long is that in minutes and seconds? (a) 6 min 55 s (b) 3 min 85 s (c) 6 min 25 s (d) 7 min 25 s
  15. 15.⏱️ A video has three clips of 43, 42 and 48 seconds. How long is the video (in seconds)?
  16. 16.⏱️ Your video must be 60 seconds long. Your clips add up to 7 seconds. How many more seconds of video do you need?
  17. 17.⏱️ A 23-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  18. 18.⏱️ A 15-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  19. 19.⏱️ A video has three clips of 29, 25 and 43 seconds. How long is the video (in seconds)?
  20. 20.⏱️ A video has three clips of 18, 15 and 8 seconds. How long is the video (in seconds)?
  21. 21.⏱️ A 12-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  22. 22.⏱️ A video is 365 seconds long. How long is that in minutes and seconds? (a) 6 min 35 s (b) 6 min 5 s (c) 3 min 65 s (d) 7 min 5 s
  23. 23.⏱️ How many seconds is 8 minutes 14 seconds?
  24. 24.⏱️ A video is 125 seconds long. How long is that in minutes and seconds? (a) 3 min 5 s (b) 1 min 25 s (c) 2 min 5 s (d) 2 min 35 s
  25. 25.⏱️ When you put clips one after another, the video length is … (a) the sum of the clips (b) the longest clip (c) always 1 minute (d) the shortest clip
  26. 26.⏱️ Your video must be 60 seconds long. Your clips add up to 45 seconds. How many more seconds of video do you need?
  27. 27.⏱️ A video has three clips of 46, 16 and 33 seconds. How long is the video (in seconds)?
  28. 28.⏱️ A 17-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  29. 29.⏱️ How many seconds is 1 minute 49 seconds?
  30. 30.⏱️ How many seconds is 7 minutes 22 seconds?
  31. 31.⏱️ A video is 175 seconds long. How long is that in minutes and seconds? (a) 1 min 75 s (b) 2 min 25 s (c) 3 min 55 s (d) 2 min 55 s
  32. 32.⏱️ A 10-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  33. 33.⏱️ Your video must be 90 seconds long. Your clips add up to 49 seconds. How many more seconds of video do you need?
  34. 34.⏱️ A video is 350 seconds long. How long is that in minutes and seconds? (a) 6 min 50 s (b) 5 min 20 s (c) 5 min 50 s (d) 3 min 50 s
  35. 35.⏱️ How many seconds is 3 minutes 27 seconds?
  36. 36.⏱️ A 7-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  37. 37.⏱️ How many seconds is 1 minute 24 seconds?
  38. 38.⏱️ A video has three clips of 40, 25 and 27 seconds. How long is the video (in seconds)?
  39. 39.⏱️ Your video must be 60 seconds long. Your clips add up to 10 seconds. How many more seconds of video do you need?
  40. 40.⏱️ A 78-second clip is sped up to 3× speed. How long does it last now (in seconds)?

Answer key

  1. 72
  2. half as long
  3. 28
  4. 31
  5. 119
  6. 45
  7. 60
  8. 26
  9. 68
  10. 140
  11. 44
  12. 294
  13. 126
  14. 6 min 25 s
  15. 133
  16. 53
  17. 46
  18. 30
  19. 97
  20. 41
  21. 24
  22. 6 min 5 s
  23. 494
  24. 2 min 5 s
  25. the sum of the clips
  26. 15
  27. 95
  28. 34
  29. 109
  30. 442
  31. 2 min 55 s
  32. 5
  33. 41
  34. 5 min 50 s
  35. 207
  36. 14
  37. 84
  38. 92
  39. 50
  40. 26

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