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Video Editing Worksheet: Video Length

Animation and design lesson 21: Video length sums · Set 223 · 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 are in 1 minute? (a) 60 (b) 100 (c) 30 (d) 10
  2. 2.⏱️ A video is 225 seconds long. How long is that in minutes and seconds? (a) 2 min 25 s (b) 3 min 45 s (c) 3 min 15 s (d) 4 min 45 s
  3. 3.⏱️ When you put clips one after another, the video length is … (a) always 1 minute (b) the shortest clip (c) the longest clip (d) the sum of the clips
  4. 4.⏱️ Your video must be 60 seconds long. Your clips add up to 47 seconds. How many more seconds of video do you need?
  5. 5.⏱️ Speeding a clip up to 2× makes it … (a) twice as long (b) the same length (c) silent (d) half as long
  6. 6.⏱️ How many seconds is 2 minutes 19 seconds?
  7. 7.⏱️ A video is 235 seconds long. How long is that in minutes and seconds? (a) 2 min 35 s (b) 3 min 55 s (c) 4 min 55 s (d) 3 min 25 s
  8. 8.⏱️ A video has three clips of 43, 9 and 53 seconds. How long is the video (in seconds)?
  9. 9.⏱️ A video is 490 seconds long. How long is that in minutes and seconds? (a) 8 min 40 s (b) 9 min 10 s (c) 8 min 10 s (d) 4 min 90 s
  10. 10.⏱️ A video has three clips of 28, 37 and 54 seconds. How long is the video (in seconds)?
  11. 11.⏱️ A video is 95 seconds long. How long is that in minutes and seconds? (a) 3 min 35 s (b) 1 min 35 s (c) 1 min 5 s (d) 2 min 35 s
  12. 12.⏱️ A 75-second clip is sped up to 3× speed. How long does it last now (in seconds)?
  13. 13.⏱️ A video has three clips of 19, 22 and 11 seconds. How long is the video (in seconds)?
  14. 14.⏱️ How many seconds is 8 minutes 18 seconds?
  15. 15.⏱️ How many seconds is 8 minutes 24 seconds?
  16. 16.⏱️ A 46-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  17. 17.⏱️ A video has three clips of 19, 33 and 60 seconds. How long is the video (in seconds)?
  18. 18.⏱️ A video has three clips of 16, 30 and 22 seconds. How long is the video (in seconds)?
  19. 19.⏱️ A 15-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  20. 20.⏱️ How many seconds is 7 minutes 24 seconds?
  21. 21.⏱️ A 10-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  22. 22.⏱️ A 25-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  23. 23.⏱️ A 7-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  24. 24.⏱️ An 8-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  25. 25.⏱️ An 84-second clip is sped up to 3× speed. How long does it last now (in seconds)?
  26. 26.⏱️ A video has three clips of 50, 32 and 18 seconds. How long is the video (in seconds)?
  27. 27.⏱️ A video has three clips of 38, 59 and 55 seconds. How long is the video (in seconds)?
  28. 28.⏱️ A video has three clips of 37, 53 and 59 seconds. How long is the video (in seconds)?
  29. 29.⏱️ A video has three clips of 29, 9 and 20 seconds. How long is the video (in seconds)?
  30. 30.⏱️ A 64-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  31. 31.⏱️ A video has three clips of 46, 37 and 22 seconds. How long is the video (in seconds)?
  32. 32.⏱️ Your video must be 60 seconds long. Your clips add up to 17 seconds. How many more seconds of video do you need?
  33. 33.⏱️ A 56-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  34. 34.⏱️ How many seconds is 7 minutes 27 seconds?
  35. 35.⏱️ Your video must be 90 seconds long. Your clips add up to 11 seconds. How many more seconds of video do you need?
  36. 36.⏱️ A video has three clips of 29, 54 and 42 seconds. How long is the video (in seconds)?
  37. 37.⏱️ A video is 185 seconds long. How long is that in minutes and seconds? (a) 3 min 5 s (b) 3 min 35 s (c) 4 min 5 s (d) 1 min 85 s
  38. 38.⏱️ How many seconds is 6 minutes 9 seconds?
  39. 39.⏱️ A video is 300 seconds long. How long is that in minutes and seconds? (a) 3 min 0 s (b) 5 min 30 s (c) 6 min 0 s (d) 5 min 0 s
  40. 40.⏱️ A video is 445 seconds long. How long is that in minutes and seconds? (a) 8 min 25 s (b) 7 min 55 s (c) 7 min 25 s (d) 4 min 45 s

Answer key

  1. 60
  2. 3 min 45 s
  3. the sum of the clips
  4. 13
  5. half as long
  6. 139
  7. 3 min 55 s
  8. 105
  9. 8 min 10 s
  10. 119
  11. 1 min 35 s
  12. 25
  13. 52
  14. 498
  15. 504
  16. 23
  17. 112
  18. 68
  19. 30
  20. 444
  21. 20
  22. 50
  23. 14
  24. 16
  25. 28
  26. 100
  27. 152
  28. 149
  29. 58
  30. 32
  31. 105
  32. 43
  33. 28
  34. 447
  35. 79
  36. 125
  37. 3 min 5 s
  38. 369
  39. 5 min 0 s
  40. 7 min 25 s

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