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Video Editing Worksheet: Video Length

Animation and design lesson 21: Video length sums · Set 163 · 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 41, 50 and 16 seconds. How long is the video (in seconds)?
  2. 2.⏱️ A 20-second clip is sped up to 4× speed. How long does it last now (in seconds)?
  3. 3.⏱️ A 23-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  4. 4.⏱️ How many seconds are in 1 minute? (a) 30 (b) 10 (c) 100 (d) 60
  5. 5.⏱️ Your video must be 90 seconds long. Your clips add up to 50 seconds. How many more seconds of video do you need?
  6. 6.⏱️ Speeding a clip up to 2× makes it … (a) silent (b) twice as long (c) half as long (d) the same length
  7. 7.⏱️ When you put clips one after another, the video length is … (a) the longest clip (b) the shortest clip (c) the sum of the clips (d) always 1 minute
  8. 8.⏱️ A video has three clips of 34, 53 and 20 seconds. How long is the video (in seconds)?
  9. 9.⏱️ How many seconds is 6 minutes 34 seconds?
  10. 10.⏱️ A 6-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  11. 11.⏱️ A video has three clips of 41, 12 and 24 seconds. How long is the video (in seconds)?
  12. 12.⏱️ A video is 100 seconds long. How long is that in minutes and seconds? (a) 2 min 40 s (b) 1 min 40 s (c) 1 min 10 s (d) 1 min 0 s
  13. 13.⏱️ A video is 80 seconds long. How long is that in minutes and seconds? (a) 1 min 50 s (b) 2 min 20 s (c) 3 min 20 s (d) 1 min 20 s
  14. 14.⏱️ A video has three clips of 6, 56 and 49 seconds. How long is the video (in seconds)?
  15. 15.⏱️ An 11-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  16. 16.⏱️ Your video must be 60 seconds long. Your clips add up to 25 seconds. How many more seconds of video do you need?
  17. 17.⏱️ How many seconds is 1 minute 3 seconds?
  18. 18.⏱️ A 21-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 34, 36 and 26 seconds. How long is the video (in seconds)?
  20. 20.⏱️ How many seconds is 8 minutes 9 seconds?
  21. 21.⏱️ Your video must be 60 seconds long. Your clips add up to 55 seconds. How many more seconds of video do you need?
  22. 22.⏱️ How many seconds is 3 minutes 42 seconds?
  23. 23.⏱️ A video is 125 seconds long. How long is that in minutes and seconds? (a) 2 min 35 s (b) 1 min 25 s (c) 3 min 5 s (d) 2 min 5 s
  24. 24.⏱️ A 13-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  25. 25.⏱️ A 128-second clip is sped up to 4× speed. How long does it last now (in seconds)?
  26. 26.⏱️ Your video must be 90 seconds long. Your clips add up to 35 seconds. How many more seconds of video do you need?
  27. 27.⏱️ Your video must be 120 seconds long. Your clips add up to 73 seconds. How many more seconds of video do you need?
  28. 28.⏱️ How many seconds is 7 minutes 45 seconds?
  29. 29.⏱️ A video has three clips of 40, 27 and 50 seconds. How long is the video (in seconds)?
  30. 30.⏱️ Your video must be 60 seconds long. Your clips add up to 7 seconds. How many more seconds of video do you need?
  31. 31.⏱️ A video is 290 seconds long. How long is that in minutes and seconds? (a) 2 min 90 s (b) 4 min 20 s (c) 5 min 50 s (d) 4 min 50 s
  32. 32.⏱️ A video is 450 seconds long. How long is that in minutes and seconds? (a) 8 min 30 s (b) 7 min 0 s (c) 7 min 30 s (d) 4 min 50 s
  33. 33.⏱️ A video has three clips of 5, 29 and 15 seconds. How long is the video (in seconds)?
  34. 34.⏱️ A 93-second clip is sped up to 3× speed. How long does it last now (in seconds)?
  35. 35.⏱️ How many seconds is 4 minutes 1 second?
  36. 36.⏱️ A 27-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  37. 37.⏱️ A 24-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  38. 38.⏱️ A video has three clips of 13, 47 and 21 seconds. How long is the video (in seconds)?
  39. 39.⏱️ An 80-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  40. 40.⏱️ A video has three clips of 6, 20 and 19 seconds. How long is the video (in seconds)?

Answer key

  1. 107
  2. 5
  3. 46
  4. 60
  5. 40
  6. half as long
  7. the sum of the clips
  8. 107
  9. 394
  10. 12
  11. 77
  12. 1 min 40 s
  13. 1 min 20 s
  14. 111
  15. 22
  16. 35
  17. 63
  18. 42
  19. 96
  20. 489
  21. 5
  22. 222
  23. 2 min 5 s
  24. 26
  25. 32
  26. 55
  27. 47
  28. 465
  29. 117
  30. 53
  31. 4 min 50 s
  32. 7 min 30 s
  33. 49
  34. 31
  35. 241
  36. 54
  37. 48
  38. 81
  39. 40
  40. 45

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