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Video Editing Worksheet: Video Length

Animation and design lesson 21: Video length sums · Set 30 · 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.⏱️ 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
  2. 2.⏱️ Your video must be 180 seconds long. Your clips add up to 85 seconds. How many more seconds of video do you need?
  3. 3.⏱️ A 58-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  4. 4.⏱️ How many seconds are in 1 minute? (a) 100 (b) 30 (c) 10 (d) 60
  5. 5.⏱️ A video has three clips of 27, 40 and 7 seconds. How long is the video (in seconds)?
  6. 6.⏱️ Your video must be 180 seconds long. Your clips add up to 13 seconds. How many more seconds of video do you need?
  7. 7.⏱️ A 26-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  8. 8.⏱️ How many seconds is 1 minute 44 seconds?
  9. 9.⏱️ A 19-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  10. 10.⏱️ A video has three clips of 34, 41 and 36 seconds. How long is the video (in seconds)?
  11. 11.⏱️ A 24-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  12. 12.⏱️ Your video must be 180 seconds long. Your clips add up to 137 seconds. How many more seconds of video do you need?
  13. 13.⏱️ A video has three clips of 35, 40 and 6 seconds. How long is the video (in seconds)?
  14. 14.⏱️ A video is 220 seconds long. How long is that in minutes and seconds? (a) 3 min 10 s (b) 4 min 40 s (c) 2 min 20 s (d) 3 min 40 s
  15. 15.⏱️ A 10-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  16. 16.⏱️ How many seconds is 5 minutes 35 seconds?
  17. 17.⏱️ How many seconds is 5 minutes 9 seconds?
  18. 18.⏱️ How many seconds is 1 minute 55 seconds?
  19. 19.⏱️ A video has three clips of 21, 16 and 58 seconds. How long is the video (in seconds)?
  20. 20.⏱️ Your video must be 90 seconds long. Your clips add up to 82 seconds. How many more seconds of video do you need?
  21. 21.⏱️ An 11-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  22. 22.⏱️ Your video must be 90 seconds long. Your clips add up to 55 seconds. How many more seconds of video do you need?
  23. 23.⏱️ How many seconds is 5 minutes 47 seconds?
  24. 24.⏱️ Speeding a clip up to 2× makes it … (a) twice as long (b) half as long (c) the same length (d) silent
  25. 25.⏱️ How many seconds is 2 minutes 36 seconds?
  26. 26.⏱️ A 66-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  27. 27.⏱️ How many seconds is 9 minutes 40 seconds?
  28. 28.⏱️ Your video must be 60 seconds long. Your clips add up to 28 seconds. How many more seconds of video do you need?
  29. 29.⏱️ A video is 545 seconds long. How long is that in minutes and seconds? (a) 9 min 5 s (b) 10 min 5 s (c) 9 min 35 s (d) 5 min 45 s
  30. 30.⏱️ Your video must be 90 seconds long. Your clips add up to 18 seconds. How many more seconds of video do you need?
  31. 31.⏱️ Your video must be 120 seconds long. Your clips add up to 23 seconds. How many more seconds of video do you need?
  32. 32.⏱️ A video is 325 seconds long. How long is that in minutes and seconds? (a) 3 min 25 s (b) 5 min 55 s (c) 5 min 25 s (d) 6 min 25 s
  33. 33.⏱️ Your video must be 60 seconds long. Your clips add up to 19 seconds. How many more seconds of video do you need?
  34. 34.⏱️ Your video must be 60 seconds long. Your clips add up to 43 seconds. How many more seconds of video do you need?
  35. 35.⏱️ A 15-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  36. 36.⏱️ How many seconds is 7 minutes 28 seconds?
  37. 37.⏱️ Your video must be 120 seconds long. Your clips add up to 73 seconds. How many more seconds of video do you need?
  38. 38.⏱️ A video has three clips of 16, 16 and 24 seconds. How long is the video (in seconds)?
  39. 39.⏱️ A video is 140 seconds long. How long is that in minutes and seconds? (a) 3 min 20 s (b) 2 min 50 s (c) 1 min 40 s (d) 2 min 20 s
  40. 40.⏱️ A 39-second clip is sped up to 3× speed. How long does it last now (in seconds)?

Answer key

  1. the sum of the clips
  2. 95
  3. 29
  4. 60
  5. 74
  6. 167
  7. 52
  8. 104
  9. 38
  10. 111
  11. 48
  12. 43
  13. 81
  14. 3 min 40 s
  15. 5
  16. 335
  17. 309
  18. 115
  19. 95
  20. 8
  21. 22
  22. 35
  23. 347
  24. half as long
  25. 156
  26. 33
  27. 580
  28. 32
  29. 9 min 5 s
  30. 72
  31. 97
  32. 5 min 25 s
  33. 41
  34. 17
  35. 30
  36. 448
  37. 47
  38. 56
  39. 2 min 20 s
  40. 13

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