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Video Editing Worksheet: Video Length

Animation and design lesson 21: Video length sums · Set 142 · 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 4 minutes 15 seconds?
  2. 2.⏱️ A video is 590 seconds long. How long is that in minutes and seconds? (a) 10 min 50 s (b) 5 min 90 s (c) 9 min 50 s (d) 9 min 20 s
  3. 3.⏱️ How many seconds is 8 minutes 6 seconds?
  4. 4.⏱️ A video has three clips of 27, 13 and 41 seconds. How long is the video (in seconds)?
  5. 5.⏱️ A video has three clips of 42, 14 and 35 seconds. How long is the video (in seconds)?
  6. 6.⏱️ Speeding a clip up to 2× makes it … (a) half as long (b) silent (c) twice as long (d) the same length
  7. 7.⏱️ How many seconds are in 1 minute? (a) 10 (b) 60 (c) 30 (d) 100
  8. 8.⏱️ Your video must be 90 seconds long. Your clips add up to 28 seconds. How many more seconds of video do you need?
  9. 9.⏱️ How many seconds is 8 minutes 58 seconds?
  10. 10.⏱️ How many seconds is 9 minutes 10 seconds?
  11. 11.⏱️ Your video must be 90 seconds long. Your clips add up to 61 seconds. How many more seconds of video do you need?
  12. 12.⏱️ A 25-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  13. 13.⏱️ How many seconds is 6 minutes 58 seconds?
  14. 14.⏱️ A 63-second clip is sped up to 3× speed. How long does it last now (in seconds)?
  15. 15.⏱️ Your video must be 90 seconds long. Your clips add up to 13 seconds. How many more seconds of video do you need?
  16. 16.⏱️ A 30-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  17. 17.⏱️ A video is 185 seconds long. How long is that in minutes and seconds? (a) 4 min 5 s (b) 1 min 85 s (c) 3 min 35 s (d) 3 min 5 s
  18. 18.⏱️ A video is 490 seconds long. How long is that in minutes and seconds? (a) 4 min 90 s (b) 9 min 10 s (c) 8 min 40 s (d) 8 min 10 s
  19. 19.⏱️ A 62-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  20. 20.⏱️ Your video must be 120 seconds long. Your clips add up to 59 seconds. How many more seconds of video do you need?
  21. 21.⏱️ How many seconds is 2 minutes 44 seconds?
  22. 22.⏱️ A video is 545 seconds long. How long is that in minutes and seconds? (a) 10 min 5 s (b) 9 min 35 s (c) 9 min 5 s (d) 5 min 45 s
  23. 23.⏱️ A video has three clips of 10, 60 and 16 seconds. How long is the video (in seconds)?
  24. 24.⏱️ A video has three clips of 16, 51 and 56 seconds. How long is the video (in seconds)?
  25. 25.⏱️ Your video must be 180 seconds long. Your clips add up to 75 seconds. How many more seconds of video do you need?
  26. 26.⏱️ A video is 110 seconds long. How long is that in minutes and seconds? (a) 1 min 20 s (b) 2 min 50 s (c) 1 min 50 s (d) 1 min 10 s
  27. 27.⏱️ A 13-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  28. 28.⏱️ A video has three clips of 52, 13 and 29 seconds. How long is the video (in seconds)?
  29. 29.⏱️ How many seconds is 2 minutes 55 seconds?
  30. 30.⏱️ A video is 230 seconds long. How long is that in minutes and seconds? (a) 3 min 20 s (b) 4 min 50 s (c) 3 min 50 s (d) 2 min 30 s
  31. 31.⏱️ How many seconds is 3 minutes 51 seconds?
  32. 32.⏱️ 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
  33. 33.⏱️ A video has three clips of 6, 37 and 48 seconds. How long is the video (in seconds)?
  34. 34.⏱️ How many seconds is 1 minute 37 seconds?
  35. 35.⏱️ A video has three clips of 14, 60 and 45 seconds. How long is the video (in seconds)?
  36. 36.⏱️ A 4-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  37. 37.⏱️ A video is 310 seconds long. How long is that in minutes and seconds? (a) 5 min 40 s (b) 6 min 10 s (c) 3 min 10 s (d) 5 min 10 s
  38. 38.⏱️ A 34-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  39. 39.⏱️ How many seconds is 1 minute 5 seconds?
  40. 40.⏱️ Your video must be 180 seconds long. Your clips add up to 76 seconds. How many more seconds of video do you need?

Answer key

  1. 255
  2. 9 min 50 s
  3. 486
  4. 81
  5. 91
  6. half as long
  7. 60
  8. 62
  9. 538
  10. 550
  11. 29
  12. 50
  13. 418
  14. 21
  15. 77
  16. 60
  17. 3 min 5 s
  18. 8 min 10 s
  19. 31
  20. 61
  21. 164
  22. 9 min 5 s
  23. 86
  24. 123
  25. 105
  26. 1 min 50 s
  27. 26
  28. 94
  29. 175
  30. 3 min 50 s
  31. 231
  32. the sum of the clips
  33. 91
  34. 97
  35. 119
  36. 8
  37. 5 min 10 s
  38. 17
  39. 65
  40. 104

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