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Video Editing Worksheet: Video Length

Animation and design lesson 21: Video length sums · Set 286 · 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.⏱️ Your video must be 120 seconds long. Your clips add up to 26 seconds. How many more seconds of video do you need?
  2. 2.⏱️ How many seconds is 7 minutes 28 seconds?
  3. 3.⏱️ How many seconds is 7 minutes 33 seconds?
  4. 4.⏱️ A 132-second clip is sped up to 4× speed. How long does it last now (in seconds)?
  5. 5.⏱️ A video has three clips of 45, 19 and 15 seconds. How long is the video (in seconds)?
  6. 6.⏱️ A 148-second clip is sped up to 4× speed. How long does it last now (in seconds)?
  7. 7.⏱️ How many seconds are in 1 minute? (a) 30 (b) 60 (c) 100 (d) 10
  8. 8.⏱️ A 40-second clip is sped up to 4× speed. How long does it last now (in seconds)?
  9. 9.⏱️ When you put clips one after another, the video length is … (a) always 1 minute (b) the shortest clip (c) the longest clip (d) the sum of the clips
  10. 10.⏱️ Speeding a clip up to 2× makes it … (a) twice as long (b) silent (c) half as long (d) the same length
  11. 11.⏱️ How many seconds is 2 minutes 43 seconds?
  12. 12.⏱️ A 15-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  13. 13.⏱️ Your video must be 90 seconds long. Your clips add up to 21 seconds. How many more seconds of video do you need?
  14. 14.⏱️ How many seconds is 6 minutes 35 seconds?
  15. 15.⏱️ A video has three clips of 56, 16 and 46 seconds. How long is the video (in seconds)?
  16. 16.⏱️ Your video must be 60 seconds long. Your clips add up to 29 seconds. How many more seconds of video do you need?
  17. 17.⏱️ A 9-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  18. 18.⏱️ A video is 480 seconds long. How long is that in minutes and seconds? (a) 9 min 0 s (b) 8 min 30 s (c) 4 min 80 s (d) 8 min 0 s
  19. 19.⏱️ Your video must be 180 seconds long. Your clips add up to 148 seconds. How many more seconds of video do you need?
  20. 20.⏱️ How many seconds is 5 minutes 36 seconds?
  21. 21.⏱️ How many seconds is 1 minute 46 seconds?
  22. 22.⏱️ A 30-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  23. 23.⏱️ A 36-second clip is sped up to 4× speed. How long does it last now (in seconds)?
  24. 24.⏱️ A 60-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  25. 25.⏱️ A 44-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  26. 26.⏱️ An 11-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  27. 27.⏱️ A 66-second clip is sped up to 3× speed. How long does it last now (in seconds)?
  28. 28.⏱️ How many seconds is 2 minutes 48 seconds?
  29. 29.⏱️ Your video must be 90 seconds long. Your clips add up to 42 seconds. How many more seconds of video do you need?
  30. 30.⏱️ A video has three clips of 48, 25 and 28 seconds. How long is the video (in seconds)?
  31. 31.⏱️ A video is 585 seconds long. How long is that in minutes and seconds? (a) 5 min 85 s (b) 10 min 45 s (c) 9 min 15 s (d) 9 min 45 s
  32. 32.⏱️ Your video must be 180 seconds long. Your clips add up to 31 seconds. How many more seconds of video do you need?
  33. 33.⏱️ A video is 490 seconds long. How long is that in minutes and seconds? (a) 8 min 40 s (b) 4 min 90 s (c) 9 min 10 s (d) 8 min 10 s
  34. 34.⏱️ A 117-second clip is sped up to 3× speed. How long does it last now (in seconds)?
  35. 35.⏱️ A 24-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  36. 36.⏱️ How many seconds is 8 minutes 57 seconds?
  37. 37.⏱️ A video has three clips of 54, 47 and 25 seconds. How long is the video (in seconds)?
  38. 38.⏱️ A 26-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  39. 39.⏱️ A video is 220 seconds long. How long is that in minutes and seconds? (a) 3 min 10 s (b) 3 min 40 s (c) 2 min 20 s (d) 4 min 40 s
  40. 40.⏱️ A 99-second clip is sped up to 3× speed. How long does it last now (in seconds)?

Answer key

  1. 94
  2. 448
  3. 453
  4. 33
  5. 79
  6. 37
  7. 60
  8. 10
  9. the sum of the clips
  10. half as long
  11. 163
  12. 30
  13. 69
  14. 395
  15. 118
  16. 31
  17. 18
  18. 8 min 0 s
  19. 32
  20. 336
  21. 106
  22. 60
  23. 9
  24. 30
  25. 22
  26. 22
  27. 22
  28. 168
  29. 48
  30. 101
  31. 9 min 45 s
  32. 149
  33. 8 min 10 s
  34. 39
  35. 12
  36. 537
  37. 126
  38. 52
  39. 3 min 40 s
  40. 33

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