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Video Editing Worksheet: Video Length

Animation and design lesson 21: Video length sums · Set 267 · 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 is 330 seconds long. How long is that in minutes and seconds? (a) 5 min 30 s (b) 5 min 0 s (c) 3 min 30 s (d) 6 min 30 s
  2. 2.⏱️ Your video must be 120 seconds long. Your clips add up to 68 seconds. How many more seconds of video do you need?
  3. 3.⏱️ Speeding a clip up to 2× makes it … (a) silent (b) the same length (c) half as long (d) twice as long
  4. 4.⏱️ A video is 380 seconds long. How long is that in minutes and seconds? (a) 7 min 20 s (b) 6 min 50 s (c) 6 min 20 s (d) 3 min 80 s
  5. 5.⏱️ A video is 435 seconds long. How long is that in minutes and seconds? (a) 4 min 35 s (b) 7 min 15 s (c) 8 min 15 s (d) 7 min 45 s
  6. 6.⏱️ A 28-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  7. 7.⏱️ How many seconds is 7 minutes 37 seconds?
  8. 8.⏱️ A 21-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  9. 9.⏱️ Your video must be 120 seconds long. Your clips add up to 109 seconds. How many more seconds of video do you need?
  10. 10.⏱️ A video has three clips of 21, 37 and 10 seconds. How long is the video (in seconds)?
  11. 11.⏱️ A video has three clips of 37, 33 and 36 seconds. How long is the video (in seconds)?
  12. 12.⏱️ A video has three clips of 21, 57 and 53 seconds. How long is the video (in seconds)?
  13. 13.⏱️ How many seconds is 7 minutes 22 seconds?
  14. 14.⏱️ A 148-second clip is sped up to 4× speed. How long does it last now (in seconds)?
  15. 15.⏱️ How many seconds is 7 minutes 41 seconds?
  16. 16.⏱️ A 5-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  17. 17.⏱️ A 10-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  18. 18.⏱️ A video has three clips of 18, 5 and 42 seconds. How long is the video (in seconds)?
  19. 19.⏱️ Your video must be 120 seconds long. Your clips add up to 51 seconds. How many more seconds of video do you need?
  20. 20.⏱️ A video has three clips of 18, 49 and 51 seconds. How long is the video (in seconds)?
  21. 21.⏱️ A 9-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  22. 22.⏱️ When you put clips one after another, the video length is … (a) the sum of the clips (b) the shortest clip (c) always 1 minute (d) the longest clip
  23. 23.⏱️ Your video must be 60 seconds long. Your clips add up to 16 seconds. How many more seconds of video do you need?
  24. 24.⏱️ How many seconds are in 1 minute? (a) 100 (b) 10 (c) 60 (d) 30
  25. 25.⏱️ A 27-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  26. 26.⏱️ A 26-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  27. 27.⏱️ Your video must be 180 seconds long. Your clips add up to 22 seconds. How many more seconds of video do you need?
  28. 28.⏱️ A video is 85 seconds long. How long is that in minutes and seconds? (a) 2 min 25 s (b) 1 min 25 s (c) 3 min 25 s (d) 1 min 55 s
  29. 29.⏱️ How many seconds is 2 minutes 6 seconds?
  30. 30.⏱️ An 18-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 41, 55 and 54 seconds. How long is the video (in seconds)?
  32. 32.⏱️ How many seconds is 4 minutes 5 seconds?
  33. 33.⏱️ A video has three clips of 57, 12 and 7 seconds. How long is the video (in seconds)?
  34. 34.⏱️ A video is 410 seconds long. How long is that in minutes and seconds? (a) 4 min 10 s (b) 6 min 50 s (c) 7 min 50 s (d) 6 min 20 s
  35. 35.⏱️ A 90-second clip is sped up to 3× speed. How long does it last now (in seconds)?
  36. 36.⏱️ A 13-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  37. 37.⏱️ How many seconds is 4 minutes 37 seconds?
  38. 38.⏱️ Your video must be 90 seconds long. Your clips add up to 66 seconds. How many more seconds of video do you need?
  39. 39.⏱️ How many seconds is 2 minutes 16 seconds?
  40. 40.⏱️ A video is 480 seconds long. How long is that in minutes and seconds? (a) 4 min 80 s (b) 8 min 30 s (c) 9 min 0 s (d) 8 min 0 s

Answer key

  1. 5 min 30 s
  2. 52
  3. half as long
  4. 6 min 20 s
  5. 7 min 15 s
  6. 56
  7. 457
  8. 42
  9. 11
  10. 68
  11. 106
  12. 131
  13. 442
  14. 37
  15. 461
  16. 10
  17. 5
  18. 65
  19. 69
  20. 118
  21. 18
  22. the sum of the clips
  23. 44
  24. 60
  25. 54
  26. 52
  27. 158
  28. 1 min 25 s
  29. 126
  30. 36
  31. 150
  32. 245
  33. 76
  34. 6 min 50 s
  35. 30
  36. 26
  37. 277
  38. 24
  39. 136
  40. 8 min 0 s

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