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Video Editing Worksheet: Video Length

Animation and design lesson 21: Video length sums · Set 97 · 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.⏱️ Speeding a clip up to 2× makes it … (a) silent (b) twice as long (c) half as long (d) the same length
  2. 2.⏱️ How many seconds are in 1 minute? (a) 100 (b) 30 (c) 60 (d) 10
  3. 3.⏱️ How many seconds is 1 minute 6 seconds?
  4. 4.⏱️ A 29-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  5. 5.⏱️ How many seconds is 1 minute 56 seconds?
  6. 6.⏱️ How many seconds is 2 minutes 55 seconds?
  7. 7.⏱️ How many seconds is 8 minutes 52 seconds?
  8. 8.⏱️ A video is 395 seconds long. How long is that in minutes and seconds? (a) 7 min 35 s (b) 6 min 35 s (c) 3 min 95 s (d) 6 min 5 s
  9. 9.⏱️ A 9-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 60, 16 and 5 seconds. How long is the video (in seconds)?
  11. 11.⏱️ A 21-second clip is sped up to 3× speed. How long does it last now (in seconds)?
  12. 12.⏱️ A video is 130 seconds long. How long is that in minutes and seconds? (a) 1 min 30 s (b) 2 min 40 s (c) 3 min 10 s (d) 2 min 10 s
  13. 13.⏱️ A 14-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  14. 14.⏱️ Your video must be 60 seconds long. Your clips add up to 16 seconds. How many more seconds of video do you need?
  15. 15.⏱️ How many seconds is 5 minutes 36 seconds?
  16. 16.⏱️ A 17-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  17. 17.⏱️ Your video must be 90 seconds long. Your clips add up to 44 seconds. How many more seconds of video do you need?
  18. 18.⏱️ How many seconds is 2 minutes 19 seconds?
  19. 19.⏱️ A video has three clips of 59, 19 and 59 seconds. How long is the video (in seconds)?
  20. 20.⏱️ Your video must be 180 seconds long. Your clips add up to 141 seconds. How many more seconds of video do you need?
  21. 21.⏱️ 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
  22. 22.⏱️ A video has three clips of 5, 5 and 55 seconds. How long is the video (in seconds)?
  23. 23.⏱️ A 23-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  24. 24.⏱️ A video has three clips of 15, 17 and 17 seconds. How long is the video (in seconds)?
  25. 25.⏱️ Your video must be 180 seconds long. Your clips add up to 94 seconds. How many more seconds of video do you need?
  26. 26.⏱️ A video is 410 seconds long. How long is that in minutes and seconds? (a) 6 min 50 s (b) 6 min 20 s (c) 4 min 10 s (d) 7 min 50 s
  27. 27.⏱️ A video has three clips of 48, 14 and 29 seconds. How long is the video (in seconds)?
  28. 28.⏱️ A video is 415 seconds long. How long is that in minutes and seconds? (a) 7 min 55 s (b) 6 min 55 s (c) 4 min 15 s (d) 6 min 25 s
  29. 29.⏱️ A video has three clips of 56, 12 and 30 seconds. How long is the video (in seconds)?
  30. 30.⏱️ An 81-second clip is sped up to 3× speed. How long does it last now (in seconds)?
  31. 31.⏱️ A 63-second clip is sped up to 3× speed. How long does it last now (in seconds)?
  32. 32.⏱️ A video is 240 seconds long. How long is that in minutes and seconds? (a) 5 min 0 s (b) 4 min 30 s (c) 2 min 40 s (d) 4 min 0 s
  33. 33.⏱️ A 26-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  34. 34.⏱️ A video has three clips of 35, 7 and 29 seconds. How long is the video (in seconds)?
  35. 35.⏱️ A 38-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  36. 36.⏱️ A 48-second clip is sped up to 3× speed. How long does it last now (in seconds)?
  37. 37.⏱️ A video has three clips of 12, 35 and 37 seconds. How long is the video (in seconds)?
  38. 38.⏱️ A 5-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  39. 39.⏱️ An 18-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  40. 40.⏱️ A video is 590 seconds long. How long is that in minutes and seconds? (a) 10 min 50 s (b) 5 min 90 s (c) 9 min 50 s (d) 9 min 20 s

Answer key

  1. half as long
  2. 60
  3. 66
  4. 58
  5. 116
  6. 175
  7. 532
  8. 6 min 35 s
  9. 18
  10. 81
  11. 7
  12. 2 min 10 s
  13. 28
  14. 44
  15. 336
  16. 34
  17. 46
  18. 139
  19. 137
  20. 39
  21. the sum of the clips
  22. 65
  23. 46
  24. 49
  25. 86
  26. 6 min 50 s
  27. 91
  28. 6 min 55 s
  29. 98
  30. 27
  31. 21
  32. 4 min 0 s
  33. 52
  34. 71
  35. 19
  36. 16
  37. 84
  38. 10
  39. 9
  40. 9 min 50 s

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