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Video Editing Worksheet: Video Length

Animation and design lesson 21: Video length sums · Set 152 · 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 16-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  2. 2.⏱️ How many seconds is 6 minutes 53 seconds?
  3. 3.⏱️ How many seconds are in 1 minute? (a) 30 (b) 60 (c) 10 (d) 100
  4. 4.⏱️ When you put clips one after another, the video length is … (a) the shortest clip (b) the longest clip (c) the sum of the clips (d) always 1 minute
  5. 5.⏱️ A video has three clips of 42, 52 and 18 seconds. How long is the video (in seconds)?
  6. 6.⏱️ A 56-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  7. 7.⏱️ How many seconds is 8 minutes 10 seconds?
  8. 8.⏱️ A 48-second clip is sped up to 4× speed. How long does it last now (in seconds)?
  9. 9.⏱️ A video is 430 seconds long. How long is that in minutes and seconds? (a) 7 min 40 s (b) 7 min 10 s (c) 4 min 30 s (d) 8 min 10 s
  10. 10.⏱️ A 28-second clip is sped up to 4× speed. How long does it last now (in seconds)?
  11. 11.⏱️ Your video must be 60 seconds long. Your clips add up to 15 seconds. How many more seconds of video do you need?
  12. 12.⏱️ Your video must be 180 seconds long. Your clips add up to 161 seconds. How many more seconds of video do you need?
  13. 13.⏱️ Your video must be 120 seconds long. Your clips add up to 64 seconds. How many more seconds of video do you need?
  14. 14.⏱️ Speeding a clip up to 2× makes it … (a) the same length (b) half as long (c) silent (d) twice as long
  15. 15.⏱️ A video is 460 seconds long. How long is that in minutes and seconds? (a) 7 min 10 s (b) 8 min 40 s (c) 4 min 60 s (d) 7 min 40 s
  16. 16.⏱️ A video has three clips of 45, 44 and 22 seconds. How long is the video (in seconds)?
  17. 17.⏱️ How many seconds is 4 minutes 9 seconds?
  18. 18.⏱️ How many seconds is 2 minutes 24 seconds?
  19. 19.⏱️ How many seconds is 3 minutes 40 seconds?
  20. 20.⏱️ A video has three clips of 14, 18 and 16 seconds. How long is the video (in seconds)?
  21. 21.⏱️ How many seconds is 5 minutes 46 seconds?
  22. 22.⏱️ A video has three clips of 46, 8 and 56 seconds. How long is the video (in seconds)?
  23. 23.⏱️ A video has three clips of 24, 8 and 19 seconds. How long is the video (in seconds)?
  24. 24.⏱️ A video has three clips of 13, 6 and 48 seconds. How long is the video (in seconds)?
  25. 25.⏱️ A video has three clips of 23, 25 and 6 seconds. How long is the video (in seconds)?
  26. 26.⏱️ A 10-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  27. 27.⏱️ How many seconds is 2 minutes 59 seconds?
  28. 28.⏱️ Your video must be 90 seconds long. Your clips add up to 68 seconds. How many more seconds of video do you need?
  29. 29.⏱️ How many seconds is 8 minutes 46 seconds?
  30. 30.⏱️ A 15-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  31. 31.⏱️ Your video must be 180 seconds long. Your clips add up to 141 seconds. How many more seconds of video do you need?
  32. 32.⏱️ A 17-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  33. 33.⏱️ A video is 60 seconds long. How long is that in minutes and seconds? (a) 3 min 0 s (b) 1 min 30 s (c) 1 min 0 s (d) 2 min 0 s
  34. 34.⏱️ A video has three clips of 52, 46 and 52 seconds. How long is the video (in seconds)?
  35. 35.⏱️ How many seconds is 1 minute 4 seconds?
  36. 36.⏱️ A video is 210 seconds long. How long is that in minutes and seconds? (a) 3 min 0 s (b) 3 min 30 s (c) 4 min 30 s (d) 2 min 10 s
  37. 37.⏱️ A video is 215 seconds long. How long is that in minutes and seconds? (a) 3 min 5 s (b) 3 min 35 s (c) 2 min 15 s (d) 4 min 35 s
  38. 38.⏱️ Your video must be 60 seconds long. Your clips add up to 14 seconds. How many more seconds of video do you need?
  39. 39.⏱️ A 12-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  40. 40.⏱️ How many seconds is 2 minutes 40 seconds?

Answer key

  1. 32
  2. 413
  3. 60
  4. the sum of the clips
  5. 112
  6. 28
  7. 490
  8. 12
  9. 7 min 10 s
  10. 7
  11. 45
  12. 19
  13. 56
  14. half as long
  15. 7 min 40 s
  16. 111
  17. 249
  18. 144
  19. 220
  20. 48
  21. 346
  22. 110
  23. 51
  24. 67
  25. 54
  26. 20
  27. 179
  28. 22
  29. 526
  30. 30
  31. 39
  32. 34
  33. 1 min 0 s
  34. 150
  35. 64
  36. 3 min 30 s
  37. 3 min 35 s
  38. 46
  39. 6
  40. 160

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