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Video Editing Worksheet: Video Length

Animation and design lesson 21: Video length sums · Set 13 · 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) 10 (b) 60 (c) 100 (d) 30
  2. 2.⏱️ A 66-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  3. 3.⏱️ An 8-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  4. 4.⏱️ Your video must be 90 seconds long. Your clips add up to 72 seconds. How many more seconds of video do you need?
  5. 5.⏱️ How many seconds is 3 minutes 30 seconds?
  6. 6.⏱️ How many seconds is 5 minutes 6 seconds?
  7. 7.⏱️ A video is 485 seconds long. How long is that in minutes and seconds? (a) 9 min 5 s (b) 8 min 5 s (c) 8 min 35 s (d) 4 min 85 s
  8. 8.⏱️ When you put clips one after another, the video length is … (a) the sum of the clips (b) always 1 minute (c) the shortest clip (d) the longest clip
  9. 9.⏱️ An 80-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  10. 10.⏱️ A video has three clips of 26, 5 and 8 seconds. How long is the video (in seconds)?
  11. 11.⏱️ A video is 525 seconds long. How long is that in minutes and seconds? (a) 8 min 15 s (b) 9 min 45 s (c) 5 min 25 s (d) 8 min 45 s
  12. 12.⏱️ A 120-second clip is sped up to 3× speed. How long does it last now (in seconds)?
  13. 13.⏱️ A video is 445 seconds long. How long is that in minutes and seconds? (a) 8 min 25 s (b) 4 min 45 s (c) 7 min 55 s (d) 7 min 25 s
  14. 14.⏱️ A 3-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  15. 15.⏱️ A video is 110 seconds long. How long is that in minutes and seconds? (a) 1 min 20 s (b) 1 min 10 s (c) 2 min 50 s (d) 1 min 50 s
  16. 16.⏱️ A video has three clips of 57, 37 and 46 seconds. How long is the video (in seconds)?
  17. 17.⏱️ An 80-second clip is sped up to 4× speed. How long does it last now (in seconds)?
  18. 18.⏱️ A video has three clips of 13, 51 and 15 seconds. How long is the video (in seconds)?
  19. 19.⏱️ How many seconds is 5 minutes 27 seconds?
  20. 20.⏱️ Your video must be 60 seconds long. Your clips add up to 50 seconds. How many more seconds of video do you need?
  21. 21.⏱️ How many seconds is 1 minute 5 seconds?
  22. 22.⏱️ A video is 205 seconds long. How long is that in minutes and seconds? (a) 3 min 25 s (b) 4 min 25 s (c) 2 min 5 s (d) 3 min 55 s
  23. 23.⏱️ Speeding a clip up to 2× makes it … (a) the same length (b) twice as long (c) half as long (d) silent
  24. 24.⏱️ How many seconds is 2 minutes 51 seconds?
  25. 25.⏱️ A video has three clips of 49, 42 and 44 seconds. How long is the video (in seconds)?
  26. 26.⏱️ A 24-second clip is sped up to 3× speed. How long does it last now (in seconds)?
  27. 27.⏱️ How many seconds is 7 minutes 15 seconds?
  28. 28.⏱️ How many seconds is 9 minutes 12 seconds?
  29. 29.⏱️ A 76-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  30. 30.⏱️ A 12-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  31. 31.⏱️ A 105-second clip is sped up to 3× speed. How long does it last now (in seconds)?
  32. 32.⏱️ An 11-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  33. 33.⏱️ Your video must be 60 seconds long. Your clips add up to 6 seconds. How many more seconds of video do you need?
  34. 34.⏱️ How many seconds is 5 minutes 8 seconds?
  35. 35.⏱️ How many seconds is 3 minutes 10 seconds?
  36. 36.⏱️ A video has three clips of 14, 48 and 38 seconds. How long is the video (in seconds)?
  37. 37.⏱️ Your video must be 90 seconds long. Your clips add up to 21 seconds. How many more seconds of video do you need?
  38. 38.⏱️ Your video must be 180 seconds long. Your clips add up to 160 seconds. How many more seconds of video do you need?
  39. 39.⏱️ A video has three clips of 45, 23 and 6 seconds. How long is the video (in seconds)?
  40. 40.⏱️ A video has three clips of 43, 55 and 10 seconds. How long is the video (in seconds)?

Answer key

  1. 60
  2. 33
  3. 16
  4. 18
  5. 210
  6. 306
  7. 8 min 5 s
  8. the sum of the clips
  9. 40
  10. 39
  11. 8 min 45 s
  12. 40
  13. 7 min 25 s
  14. 6
  15. 1 min 50 s
  16. 140
  17. 20
  18. 79
  19. 327
  20. 10
  21. 65
  22. 3 min 25 s
  23. half as long
  24. 171
  25. 135
  26. 8
  27. 435
  28. 552
  29. 38
  30. 24
  31. 35
  32. 22
  33. 54
  34. 308
  35. 190
  36. 100
  37. 69
  38. 20
  39. 74
  40. 108

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