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Video Editing Worksheet: Video Length

Animation and design lesson 21: Video length sums · Set 199 · 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) the sum of the clips (b) the longest clip (c) always 1 minute (d) the shortest clip
  2. 2.⏱️ Speeding a clip up to 2× makes it … (a) silent (b) half as long (c) twice as long (d) the same length
  3. 3.⏱️ A video is 380 seconds long. How long is that in minutes and seconds? (a) 6 min 50 s (b) 7 min 20 s (c) 3 min 80 s (d) 6 min 20 s
  4. 4.⏱️ A video has three clips of 58, 54 and 42 seconds. How long is the video (in seconds)?
  5. 5.⏱️ How many seconds is 9 minutes 26 seconds?
  6. 6.⏱️ A 114-second clip is sped up to 3× speed. How long does it last now (in seconds)?
  7. 7.⏱️ A video has three clips of 50, 46 and 35 seconds. How long is the video (in seconds)?
  8. 8.⏱️ How many seconds is 8 minutes 40 seconds?
  9. 9.⏱️ How many seconds is 6 minutes 43 seconds?
  10. 10.⏱️ A 26-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  11. 11.⏱️ How many seconds is 2 minutes 45 seconds?
  12. 12.⏱️ A 21-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  13. 13.⏱️ A video is 90 seconds long. How long is that in minutes and seconds? (a) 2 min 30 s (b) 1 min 30 s (c) 3 min 30 s (d) 1 min 0 s
  14. 14.⏱️ A video is 540 seconds long. How long is that in minutes and seconds? (a) 9 min 30 s (b) 10 min 0 s (c) 9 min 0 s (d) 5 min 40 s
  15. 15.⏱️ A video has three clips of 5, 5 and 15 seconds. How long is the video (in seconds)?
  16. 16.⏱️ A 36-second clip is sped up to 4× speed. How long does it last now (in seconds)?
  17. 17.⏱️ How many seconds are in 1 minute? (a) 60 (b) 100 (c) 10 (d) 30
  18. 18.⏱️ How many seconds is 2 minutes 17 seconds?
  19. 19.⏱️ A 9-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  20. 20.⏱️ A 108-second clip is sped up to 3× speed. How long does it last now (in seconds)?
  21. 21.⏱️ A 17-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  22. 22.⏱️ How many seconds is 1 minute 49 seconds?
  23. 23.⏱️ A 96-second clip is sped up to 3× speed. How long does it last now (in seconds)?
  24. 24.⏱️ Your video must be 90 seconds long. Your clips add up to 69 seconds. How many more seconds of video do you need?
  25. 25.⏱️ A 54-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  26. 26.⏱️ A video is 105 seconds long. How long is that in minutes and seconds? (a) 1 min 15 s (b) 2 min 45 s (c) 1 min 5 s (d) 1 min 45 s
  27. 27.⏱️ A 7-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  28. 28.⏱️ A video has three clips of 28, 40 and 49 seconds. How long is the video (in seconds)?
  29. 29.⏱️ Your video must be 120 seconds long. Your clips add up to 32 seconds. How many more seconds of video do you need?
  30. 30.⏱️ A video has three clips of 55, 14 and 19 seconds. How long is the video (in seconds)?
  31. 31.⏱️ How many seconds is 4 minutes 45 seconds?
  32. 32.⏱️ Your video must be 90 seconds long. Your clips add up to 31 seconds. How many more seconds of video do you need?
  33. 33.⏱️ How many seconds is 3 minutes 3 seconds?
  34. 34.⏱️ A video has three clips of 6, 18 and 18 seconds. How long is the video (in seconds)?
  35. 35.⏱️ A 40-second clip is sped up to 4× speed. How long does it last now (in seconds)?
  36. 36.⏱️ A video is 130 seconds long. How long is that in minutes and seconds? (a) 3 min 10 s (b) 2 min 40 s (c) 1 min 30 s (d) 2 min 10 s
  37. 37.⏱️ Your video must be 120 seconds long. Your clips add up to 23 seconds. How many more seconds of video do you need?
  38. 38.⏱️ A 22-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  39. 39.⏱️ Your video must be 120 seconds long. Your clips add up to 39 seconds. How many more seconds of video do you need?
  40. 40.⏱️ How many seconds is 7 minutes 13 seconds?

Answer key

  1. the sum of the clips
  2. half as long
  3. 6 min 20 s
  4. 154
  5. 566
  6. 38
  7. 131
  8. 520
  9. 403
  10. 52
  11. 165
  12. 42
  13. 1 min 30 s
  14. 9 min 0 s
  15. 25
  16. 9
  17. 60
  18. 137
  19. 18
  20. 36
  21. 34
  22. 109
  23. 32
  24. 21
  25. 27
  26. 1 min 45 s
  27. 14
  28. 117
  29. 88
  30. 88
  31. 285
  32. 59
  33. 183
  34. 42
  35. 10
  36. 2 min 10 s
  37. 97
  38. 44
  39. 81
  40. 433

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