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Video Editing Worksheet: Video Length

Animation and design lesson 21: Video length sums · Set 126 · 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 15, 28 and 49 seconds. How long is the video (in seconds)?
  2. 2.⏱️ Your video must be 180 seconds long. Your clips add up to 55 seconds. How many more seconds of video do you need?
  3. 3.⏱️ A 24-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  4. 4.⏱️ A 21-second clip is sped up to 3× speed. How long does it last now (in seconds)?
  5. 5.⏱️ When you put clips one after another, the video length is … (a) the longest clip (b) the shortest clip (c) always 1 minute (d) the sum of the clips
  6. 6.⏱️ A 116-second clip is sped up to 4× speed. How long does it last now (in seconds)?
  7. 7.⏱️ An 8-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  8. 8.⏱️ How many seconds is 4 minutes 51 seconds?
  9. 9.⏱️ How many seconds are in 1 minute? (a) 100 (b) 10 (c) 60 (d) 30
  10. 10.⏱️ How many seconds is 4 minutes 2 seconds?
  11. 11.⏱️ How many seconds is 9 minutes 46 seconds?
  12. 12.⏱️ A video has three clips of 57, 29 and 6 seconds. How long is the video (in seconds)?
  13. 13.⏱️ How many seconds is 6 minutes 24 seconds?
  14. 14.⏱️ A 66-second clip is sped up to 3× speed. How long does it last now (in seconds)?
  15. 15.⏱️ A video is 310 seconds long. How long is that in minutes and seconds? (a) 3 min 10 s (b) 6 min 10 s (c) 5 min 10 s (d) 5 min 40 s
  16. 16.⏱️ How many seconds is 6 minutes 4 seconds?
  17. 17.⏱️ Speeding a clip up to 2× makes it … (a) half as long (b) twice as long (c) silent (d) the same length
  18. 18.⏱️ A video has three clips of 34, 9 and 25 seconds. How long is the video (in seconds)?
  19. 19.⏱️ How many seconds is 7 minutes 57 seconds?
  20. 20.⏱️ An 80-second clip is sped up to 4× speed. How long does it last now (in seconds)?
  21. 21.⏱️ How many seconds is 5 minutes 55 seconds?
  22. 22.⏱️ How many seconds is 6 minutes 7 seconds?
  23. 23.⏱️ A video has three clips of 10, 11 and 53 seconds. How long is the video (in seconds)?
  24. 24.⏱️ Your video must be 180 seconds long. Your clips add up to 36 seconds. How many more seconds of video do you need?
  25. 25.⏱️ Your video must be 60 seconds long. Your clips add up to 34 seconds. How many more seconds of video do you need?
  26. 26.⏱️ A video is 200 seconds long. How long is that in minutes and seconds? (a) 3 min 50 s (b) 2 min 0 s (c) 3 min 20 s (d) 4 min 20 s
  27. 27.⏱️ Your video must be 180 seconds long. Your clips add up to 12 seconds. How many more seconds of video do you need?
  28. 28.⏱️ A 16-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  29. 29.⏱️ A video has three clips of 28, 21 and 5 seconds. How long is the video (in seconds)?
  30. 30.⏱️ A 28-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  31. 31.⏱️ A video has three clips of 43, 59 and 59 seconds. How long is the video (in seconds)?
  32. 32.⏱️ A 9-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  33. 33.⏱️ How many seconds is 2 minutes 28 seconds?
  34. 34.⏱️ A video has three clips of 6, 13 and 48 seconds. How long is the video (in seconds)?
  35. 35.⏱️ How many seconds is 3 minutes 41 seconds?
  36. 36.⏱️ A video is 415 seconds long. How long is that in minutes and seconds? (a) 6 min 55 s (b) 7 min 55 s (c) 4 min 15 s (d) 6 min 25 s
  37. 37.⏱️ A video is 360 seconds long. How long is that in minutes and seconds? (a) 3 min 60 s (b) 6 min 30 s (c) 6 min 0 s (d) 7 min 0 s
  38. 38.⏱️ Your video must be 120 seconds long. Your clips add up to 56 seconds. How many more seconds of video do you need?
  39. 39.⏱️ A video is 85 seconds long. How long is that in minutes and seconds? (a) 1 min 55 s (b) 3 min 25 s (c) 2 min 25 s (d) 1 min 25 s
  40. 40.⏱️ A 17-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?

Answer key

  1. 92
  2. 125
  3. 12
  4. 7
  5. the sum of the clips
  6. 29
  7. 16
  8. 291
  9. 60
  10. 242
  11. 586
  12. 92
  13. 384
  14. 22
  15. 5 min 10 s
  16. 364
  17. half as long
  18. 68
  19. 477
  20. 20
  21. 355
  22. 367
  23. 74
  24. 144
  25. 26
  26. 3 min 20 s
  27. 168
  28. 32
  29. 54
  30. 56
  31. 161
  32. 18
  33. 148
  34. 67
  35. 221
  36. 6 min 55 s
  37. 6 min 0 s
  38. 64
  39. 1 min 25 s
  40. 34

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