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Video Editing Worksheet: Video Length

Animation and design lesson 21: Video length sums · Set 190 · 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 46, 60 and 36 seconds. How long is the video (in seconds)?
  2. 2.⏱️ Speeding a clip up to 2× makes it … (a) half as long (b) twice as long (c) silent (d) the same length
  3. 3.⏱️ A video has three clips of 17, 30 and 49 seconds. How long is the video (in seconds)?
  4. 4.⏱️ How many seconds is 9 minutes 8 seconds?
  5. 5.⏱️ When you put clips one after another, the video length is … (a) the longest clip (b) the sum of the clips (c) the shortest clip (d) always 1 minute
  6. 6.⏱️ A 66-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  7. 7.⏱️ A 5-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  8. 8.⏱️ Your video must be 120 seconds long. Your clips add up to 106 seconds. How many more seconds of video do you need?
  9. 9.⏱️ A 128-second clip is sped up to 4× speed. How long does it last now (in seconds)?
  10. 10.⏱️ How many seconds is 6 minutes 7 seconds?
  11. 11.⏱️ A video has three clips of 6, 11 and 13 seconds. How long is the video (in seconds)?
  12. 12.⏱️ Your video must be 60 seconds long. Your clips add up to 11 seconds. How many more seconds of video do you need?
  13. 13.⏱️ A video has three clips of 19, 48 and 46 seconds. How long is the video (in seconds)?
  14. 14.⏱️ A video has three clips of 16, 19 and 24 seconds. How long is the video (in seconds)?
  15. 15.⏱️ A 27-second clip is sped up to 3× speed. How long does it last now (in seconds)?
  16. 16.⏱️ How many seconds is 1 minute 14 seconds?
  17. 17.⏱️ A 68-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  18. 18.⏱️ A video is 335 seconds long. How long is that in minutes and seconds? (a) 6 min 35 s (b) 5 min 35 s (c) 3 min 35 s (d) 5 min 5 s
  19. 19.⏱️ A 6-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  20. 20.⏱️ A video has three clips of 13, 22 and 17 seconds. How long is the video (in seconds)?
  21. 21.⏱️ Your video must be 180 seconds long. Your clips add up to 27 seconds. How many more seconds of video do you need?
  22. 22.⏱️ How many seconds are in 1 minute? (a) 100 (b) 30 (c) 10 (d) 60
  23. 23.⏱️ A video has three clips of 45, 44 and 28 seconds. How long is the video (in seconds)?
  24. 24.⏱️ Your video must be 90 seconds long. Your clips add up to 57 seconds. How many more seconds of video do you need?
  25. 25.⏱️ Your video must be 60 seconds long. Your clips add up to 34 seconds. How many more seconds of video do you need?
  26. 26.⏱️ A video is 265 seconds long. How long is that in minutes and seconds? (a) 4 min 25 s (b) 5 min 25 s (c) 4 min 55 s (d) 2 min 65 s
  27. 27.⏱️ A video has three clips of 17, 48 and 43 seconds. How long is the video (in seconds)?
  28. 28.⏱️ A 50-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  29. 29.⏱️ How many seconds is 8 minutes 39 seconds?
  30. 30.⏱️ A 19-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  31. 31.⏱️ Your video must be 120 seconds long. Your clips add up to 88 seconds. How many more seconds of video do you need?
  32. 32.⏱️ How many seconds is 5 minutes 47 seconds?
  33. 33.⏱️ A video is 235 seconds long. How long is that in minutes and seconds? (a) 4 min 55 s (b) 2 min 35 s (c) 3 min 25 s (d) 3 min 55 s
  34. 34.⏱️ A video is 530 seconds long. How long is that in minutes and seconds? (a) 8 min 50 s (b) 9 min 50 s (c) 5 min 30 s (d) 8 min 20 s
  35. 35.⏱️ How many seconds is 4 minutes 11 seconds?
  36. 36.⏱️ How many seconds is 9 minutes 7 seconds?
  37. 37.⏱️ A 21-second clip is sped up to 3× speed. How long does it last now (in seconds)?
  38. 38.⏱️ A 13-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  39. 39.⏱️ How many seconds is 6 minutes 22 seconds?
  40. 40.⏱️ A video is 450 seconds long. How long is that in minutes and seconds? (a) 4 min 50 s (b) 7 min 0 s (c) 8 min 30 s (d) 7 min 30 s

Answer key

  1. 142
  2. half as long
  3. 96
  4. 548
  5. the sum of the clips
  6. 33
  7. 10
  8. 14
  9. 32
  10. 367
  11. 30
  12. 49
  13. 113
  14. 59
  15. 9
  16. 74
  17. 34
  18. 5 min 35 s
  19. 12
  20. 52
  21. 153
  22. 60
  23. 117
  24. 33
  25. 26
  26. 4 min 25 s
  27. 108
  28. 25
  29. 519
  30. 38
  31. 32
  32. 347
  33. 3 min 55 s
  34. 8 min 50 s
  35. 251
  36. 547
  37. 7
  38. 26
  39. 382
  40. 7 min 30 s

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