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Video Editing Worksheet: Video Length

Animation and design lesson 21: Video length sums · Set 289 · 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 10-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  2. 2.⏱️ A video is 565 seconds long. How long is that in minutes and seconds? (a) 9 min 55 s (b) 5 min 65 s (c) 10 min 25 s (d) 9 min 25 s
  3. 3.⏱️ An 8-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  4. 4.⏱️ A 32-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  5. 5.⏱️ Your video must be 180 seconds long. Your clips add up to 147 seconds. How many more seconds of video do you need?
  6. 6.⏱️ Your video must be 120 seconds long. Your clips add up to 48 seconds. How many more seconds of video do you need?
  7. 7.⏱️ How many seconds are in 1 minute? (a) 30 (b) 10 (c) 60 (d) 100
  8. 8.⏱️ How many seconds is 6 minutes 16 seconds?
  9. 9.⏱️ How many seconds is 9 minutes 33 seconds?
  10. 10.⏱️ How many seconds is 3 minutes 13 seconds?
  11. 11.⏱️ Your video must be 180 seconds long. Your clips add up to 108 seconds. How many more seconds of video do you need?
  12. 12.⏱️ A 6-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  13. 13.⏱️ A video has three clips of 56, 53 and 47 seconds. How long is the video (in seconds)?
  14. 14.⏱️ A video has three clips of 28, 25 and 46 seconds. How long is the video (in seconds)?
  15. 15.⏱️ A 9-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  16. 16.⏱️ A 12-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  17. 17.⏱️ How many seconds is 3 minutes 42 seconds?
  18. 18.⏱️ A video has three clips of 27, 40 and 54 seconds. How long is the video (in seconds)?
  19. 19.⏱️ A video has three clips of 54, 26 and 18 seconds. How long is the video (in seconds)?
  20. 20.⏱️ Speeding a clip up to 2× makes it … (a) half as long (b) the same length (c) silent (d) twice as long
  21. 21.⏱️ When you put clips one after another, the video length is … (a) the longest clip (b) the shortest clip (c) always 1 minute (d) the sum of the clips
  22. 22.⏱️ A video is 115 seconds long. How long is that in minutes and seconds? (a) 1 min 15 s (b) 2 min 55 s (c) 1 min 25 s (d) 1 min 55 s
  23. 23.⏱️ A video has three clips of 58, 31 and 47 seconds. How long is the video (in seconds)?
  24. 24.⏱️ Your video must be 120 seconds long. Your clips add up to 12 seconds. How many more seconds of video do you need?
  25. 25.⏱️ Your video must be 120 seconds long. Your clips add up to 114 seconds. How many more seconds of video do you need?
  26. 26.⏱️ A video has three clips of 38, 17 and 22 seconds. How long is the video (in seconds)?
  27. 27.⏱️ Your video must be 60 seconds long. Your clips add up to 44 seconds. How many more seconds of video do you need?
  28. 28.⏱️ A 30-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  29. 29.⏱️ A 44-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  30. 30.⏱️ A video has three clips of 33, 39 and 29 seconds. How long is the video (in seconds)?
  31. 31.⏱️ How many seconds is 2 minutes 8 seconds?
  32. 32.⏱️ A 54-second clip is sped up to 3× speed. How long does it last now (in seconds)?
  33. 33.⏱️ Your video must be 90 seconds long. Your clips add up to 80 seconds. How many more seconds of video do you need?
  34. 34.⏱️ Your video must be 90 seconds long. Your clips add up to 68 seconds. How many more seconds of video do you need?
  35. 35.⏱️ How many seconds is 6 minutes 3 seconds?
  36. 36.⏱️ A video has three clips of 28, 48 and 8 seconds. How long is the video (in seconds)?
  37. 37.⏱️ A 40-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  38. 38.⏱️ A video has three clips of 35, 46 and 45 seconds. How long is the video (in seconds)?
  39. 39.⏱️ A video has three clips of 55, 10 and 8 seconds. How long is the video (in seconds)?
  40. 40.⏱️ A 21-second clip is sped up to 3× speed. How long does it last now (in seconds)?

Answer key

  1. 20
  2. 9 min 25 s
  3. 16
  4. 16
  5. 33
  6. 72
  7. 60
  8. 376
  9. 573
  10. 193
  11. 72
  12. 12
  13. 156
  14. 99
  15. 18
  16. 24
  17. 222
  18. 121
  19. 98
  20. half as long
  21. the sum of the clips
  22. 1 min 55 s
  23. 136
  24. 108
  25. 6
  26. 77
  27. 16
  28. 60
  29. 22
  30. 101
  31. 128
  32. 18
  33. 10
  34. 22
  35. 363
  36. 84
  37. 20
  38. 126
  39. 73
  40. 7

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