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Video Editing Worksheet: Video Length

Animation and design lesson 21: Video length sums · Set 32 · 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.⏱️ How many seconds is 4 minutes 29 seconds?
  2. 2.⏱️ A video is 420 seconds long. How long is that in minutes and seconds? (a) 4 min 20 s (b) 8 min 0 s (c) 7 min 30 s (d) 7 min 0 s
  3. 3.⏱️ How many seconds are in 1 minute? (a) 10 (b) 100 (c) 30 (d) 60
  4. 4.⏱️ How many seconds is 2 minutes 25 seconds?
  5. 5.⏱️ Your video must be 90 seconds long. Your clips add up to 14 seconds. How many more seconds of video do you need?
  6. 6.⏱️ A video has three clips of 12, 37 and 27 seconds. How long is the video (in seconds)?
  7. 7.⏱️ A video has three clips of 12, 8 and 42 seconds. How long is the video (in seconds)?
  8. 8.⏱️ A video has three clips of 43, 24 and 57 seconds. How long is the video (in seconds)?
  9. 9.⏱️ Your video must be 60 seconds long. Your clips add up to 23 seconds. How many more seconds of video do you need?
  10. 10.⏱️ Speeding a clip up to 2× makes it … (a) half as long (b) the same length (c) twice as long (d) silent
  11. 11.⏱️ How many seconds is 1 minute 10 seconds?
  12. 12.⏱️ A 17-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  13. 13.⏱️ A 25-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  14. 14.⏱️ How many seconds is 2 minutes 56 seconds?
  15. 15.⏱️ A video has three clips of 50, 25 and 9 seconds. How long is the video (in seconds)?
  16. 16.⏱️ A 90-second clip is sped up to 3× speed. How long does it last now (in seconds)?
  17. 17.⏱️ How many seconds is 5 minutes 3 seconds?
  18. 18.⏱️ A video has three clips of 58, 20 and 26 seconds. How long is the video (in seconds)?
  19. 19.⏱️ A video has three clips of 60, 13 and 57 seconds. How long is the video (in seconds)?
  20. 20.⏱️ An 88-second clip is sped up to 4× speed. How long does it last now (in seconds)?
  21. 21.⏱️ An 11-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  22. 22.⏱️ A 60-second clip is sped up to 3× speed. How long does it last now (in seconds)?
  23. 23.⏱️ How many seconds is 3 minutes 12 seconds?
  24. 24.⏱️ A video has three clips of 44, 20 and 19 seconds. How long is the video (in seconds)?
  25. 25.⏱️ How many seconds is 1 minute 8 seconds?
  26. 26.⏱️ A video has three clips of 5, 53 and 39 seconds. How long is the video (in seconds)?
  27. 27.⏱️ A video has three clips of 33, 47 and 19 seconds. How long is the video (in seconds)?
  28. 28.⏱️ A video has three clips of 28, 41 and 23 seconds. How long is the video (in seconds)?
  29. 29.⏱️ How many seconds is 6 minutes 16 seconds?
  30. 30.⏱️ An 8-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  31. 31.⏱️ A video has three clips of 14, 47 and 50 seconds. How long is the video (in seconds)?
  32. 32.⏱️ Your video must be 120 seconds long. Your clips add up to 39 seconds. How many more seconds of video do you need?
  33. 33.⏱️ 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
  34. 34.⏱️ An 84-second clip is sped up to 4× speed. How long does it last now (in seconds)?
  35. 35.⏱️ A 60-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  36. 36.⏱️ A 144-second clip is sped up to 4× speed. How long does it last now (in seconds)?
  37. 37.⏱️ A 14-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  38. 38.⏱️ An 18-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  39. 39.⏱️ A video is 295 seconds long. How long is that in minutes and seconds? (a) 5 min 55 s (b) 4 min 55 s (c) 2 min 95 s (d) 4 min 25 s
  40. 40.⏱️ A video is 480 seconds long. How long is that in minutes and seconds? (a) 9 min 0 s (b) 4 min 80 s (c) 8 min 0 s (d) 8 min 30 s

Answer key

  1. 269
  2. 7 min 0 s
  3. 60
  4. 145
  5. 76
  6. 76
  7. 62
  8. 124
  9. 37
  10. half as long
  11. 70
  12. 34
  13. 50
  14. 176
  15. 84
  16. 30
  17. 303
  18. 104
  19. 130
  20. 22
  21. 22
  22. 20
  23. 192
  24. 83
  25. 68
  26. 97
  27. 99
  28. 92
  29. 376
  30. 16
  31. 111
  32. 81
  33. the sum of the clips
  34. 21
  35. 30
  36. 36
  37. 28
  38. 9
  39. 4 min 55 s
  40. 8 min 0 s

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