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Video Editing Worksheet: Video Length

Animation and design lesson 21: Video length sums · Set 100 · 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 60, 18 and 35 seconds. How long is the video (in seconds)?
  2. 2.⏱️ How many seconds are in 1 minute? (a) 10 (b) 60 (c) 100 (d) 30
  3. 3.⏱️ A video is 185 seconds long. How long is that in minutes and seconds? (a) 3 min 35 s (b) 3 min 5 s (c) 1 min 85 s (d) 4 min 5 s
  4. 4.⏱️ Your video must be 60 seconds long. Your clips add up to 45 seconds. How many more seconds of video do you need?
  5. 5.⏱️ Your video must be 60 seconds long. Your clips add up to 35 seconds. How many more seconds of video do you need?
  6. 6.⏱️ A 60-second clip is sped up to 4× speed. How long does it last now (in seconds)?
  7. 7.⏱️ How many seconds is 6 minutes 34 seconds?
  8. 8.⏱️ How many seconds is 8 minutes 7 seconds?
  9. 9.⏱️ How many seconds is 8 minutes 25 seconds?
  10. 10.⏱️ Speeding a clip up to 2× makes it … (a) the same length (b) silent (c) twice as long (d) half as long
  11. 11.⏱️ Your video must be 60 seconds long. Your clips add up to 7 seconds. How many more seconds of video do you need?
  12. 12.⏱️ A video has three clips of 12, 6 and 53 seconds. How long is the video (in seconds)?
  13. 13.⏱️ A video is 125 seconds long. How long is that in minutes and seconds? (a) 2 min 35 s (b) 2 min 5 s (c) 3 min 5 s (d) 1 min 25 s
  14. 14.⏱️ How many seconds is 5 minutes 2 seconds?
  15. 15.⏱️ A video is 195 seconds long. How long is that in minutes and seconds? (a) 1 min 95 s (b) 4 min 15 s (c) 3 min 45 s (d) 3 min 15 s
  16. 16.⏱️ Your video must be 180 seconds long. Your clips add up to 12 seconds. How many more seconds of video do you need?
  17. 17.⏱️ Your video must be 90 seconds long. Your clips add up to 64 seconds. How many more seconds of video do you need?
  18. 18.⏱️ A 78-second clip is sped up to 3× speed. How long does it last now (in seconds)?
  19. 19.⏱️ A 6-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  20. 20.⏱️ Your video must be 90 seconds long. Your clips add up to 11 seconds. How many more seconds of video do you need?
  21. 21.⏱️ How many seconds is 6 minutes 6 seconds?
  22. 22.⏱️ A video has three clips of 20, 59 and 19 seconds. How long is the video (in seconds)?
  23. 23.⏱️ A 22-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  24. 24.⏱️ A 29-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  25. 25.⏱️ Your video must be 120 seconds long. Your clips add up to 51 seconds. How many more seconds of video do you need?
  26. 26.⏱️ How many seconds is 5 minutes 20 seconds?
  27. 27.⏱️ A video is 570 seconds long. How long is that in minutes and seconds? (a) 5 min 70 s (b) 10 min 30 s (c) 9 min 30 s (d) 9 min 0 s
  28. 28.⏱️ Your video must be 60 seconds long. Your clips add up to 34 seconds. How many more seconds of video do you need?
  29. 29.⏱️ A video has three clips of 38, 12 and 50 seconds. How long is the video (in seconds)?
  30. 30.⏱️ How many seconds is 2 minutes 41 seconds?
  31. 31.⏱️ How many seconds is 9 minutes 34 seconds?
  32. 32.⏱️ A 30-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  33. 33.⏱️ A video is 235 seconds long. How long is that in minutes and seconds? (a) 2 min 35 s (b) 4 min 55 s (c) 3 min 55 s (d) 3 min 25 s
  34. 34.⏱️ How many seconds is 5 minutes 51 seconds?
  35. 35.⏱️ A 12-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  36. 36.⏱️ A video is 555 seconds long. How long is that in minutes and seconds? (a) 5 min 55 s (b) 10 min 15 s (c) 9 min 15 s (d) 9 min 45 s
  37. 37.⏱️ A 36-second clip is sped up to 3× speed. How long does it last now (in seconds)?
  38. 38.⏱️ How many seconds is 4 minutes 35 seconds?
  39. 39.⏱️ A video has three clips of 8, 47 and 53 seconds. How long is the video (in seconds)?
  40. 40.⏱️ A 68-second clip is sped up to 2× speed. How long does it last now (in seconds)?

Answer key

  1. 113
  2. 60
  3. 3 min 5 s
  4. 15
  5. 25
  6. 15
  7. 394
  8. 487
  9. 505
  10. half as long
  11. 53
  12. 71
  13. 2 min 5 s
  14. 302
  15. 3 min 15 s
  16. 168
  17. 26
  18. 26
  19. 12
  20. 79
  21. 366
  22. 98
  23. 44
  24. 58
  25. 69
  26. 320
  27. 9 min 30 s
  28. 26
  29. 100
  30. 161
  31. 574
  32. 60
  33. 3 min 55 s
  34. 351
  35. 24
  36. 9 min 15 s
  37. 12
  38. 275
  39. 108
  40. 34

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