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Video Editing Worksheet: Video Length

Animation and design lesson 21: Video length sums · Set 143 · 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 1 minute 33 seconds?
  2. 2.⏱️ Speeding a clip up to 2× makes it … (a) the same length (b) half as long (c) twice as long (d) silent
  3. 3.⏱️ A 23-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  4. 4.⏱️ How many seconds is 6 minutes 7 seconds?
  5. 5.⏱️ A video has three clips of 9, 37 and 18 seconds. How long is the video (in seconds)?
  6. 6.⏱️ A video is 380 seconds long. How long is that in minutes and seconds? (a) 7 min 20 s (b) 6 min 50 s (c) 3 min 80 s (d) 6 min 20 s
  7. 7.⏱️ How many seconds are in 1 minute? (a) 100 (b) 30 (c) 10 (d) 60
  8. 8.⏱️ A 44-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  9. 9.⏱️ How many seconds is 2 minutes 51 seconds?
  10. 10.⏱️ A video has three clips of 58, 47 and 15 seconds. How long is the video (in seconds)?
  11. 11.⏱️ A 52-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  12. 12.⏱️ A 160-second clip is sped up to 4× speed. How long does it last now (in seconds)?
  13. 13.⏱️ A 74-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  14. 14.⏱️ When you put clips one after another, the video length is … (a) always 1 minute (b) the longest clip (c) the sum of the clips (d) the shortest clip
  15. 15.⏱️ A video has three clips of 32, 5 and 29 seconds. How long is the video (in seconds)?
  16. 16.⏱️ A 27-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  17. 17.⏱️ Your video must be 180 seconds long. Your clips add up to 139 seconds. How many more seconds of video do you need?
  18. 18.⏱️ A video is 250 seconds long. How long is that in minutes and seconds? (a) 2 min 50 s (b) 5 min 10 s (c) 4 min 10 s (d) 4 min 40 s
  19. 19.⏱️ A video has three clips of 57, 20 and 47 seconds. How long is the video (in seconds)?
  20. 20.⏱️ A 20-second clip is sped up to 4× speed. How long does it last now (in seconds)?
  21. 21.⏱️ Your video must be 180 seconds long. Your clips add up to 159 seconds. How many more seconds of video do you need?
  22. 22.⏱️ Your video must be 60 seconds long. Your clips add up to 29 seconds. How many more seconds of video do you need?
  23. 23.⏱️ Your video must be 90 seconds long. Your clips add up to 79 seconds. How many more seconds of video do you need?
  24. 24.⏱️ A video is 165 seconds long. How long is that in minutes and seconds? (a) 1 min 65 s (b) 2 min 15 s (c) 3 min 45 s (d) 2 min 45 s
  25. 25.⏱️ A video is 405 seconds long. How long is that in minutes and seconds? (a) 7 min 45 s (b) 6 min 15 s (c) 6 min 45 s (d) 4 min 5 s
  26. 26.⏱️ A video is 455 seconds long. How long is that in minutes and seconds? (a) 7 min 5 s (b) 4 min 55 s (c) 7 min 35 s (d) 8 min 35 s
  27. 27.⏱️ A 26-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  28. 28.⏱️ A 100-second clip is sped up to 4× speed. How long does it last now (in seconds)?
  29. 29.⏱️ How many seconds is 4 minutes 49 seconds?
  30. 30.⏱️ A 15-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  31. 31.⏱️ How many seconds is 6 minutes 21 seconds?
  32. 32.⏱️ A video has three clips of 21, 23 and 17 seconds. How long is the video (in seconds)?
  33. 33.⏱️ Your video must be 90 seconds long. Your clips add up to 6 seconds. How many more seconds of video do you need?
  34. 34.⏱️ How many seconds is 6 minutes 50 seconds?
  35. 35.⏱️ A video has three clips of 58, 19 and 59 seconds. How long is the video (in seconds)?
  36. 36.⏱️ A 56-second clip is sped up to 4× speed. How long does it last now (in seconds)?
  37. 37.⏱️ A 24-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  38. 38.⏱️ A 78-second clip is sped up to 3× speed. How long does it last now (in seconds)?
  39. 39.⏱️ A video has three clips of 5, 7 and 28 seconds. How long is the video (in seconds)?
  40. 40.⏱️ How many seconds is 6 minutes 39 seconds?

Answer key

  1. 93
  2. half as long
  3. 46
  4. 367
  5. 64
  6. 6 min 20 s
  7. 60
  8. 22
  9. 171
  10. 120
  11. 26
  12. 40
  13. 37
  14. the sum of the clips
  15. 66
  16. 54
  17. 41
  18. 4 min 10 s
  19. 124
  20. 5
  21. 21
  22. 31
  23. 11
  24. 2 min 45 s
  25. 6 min 45 s
  26. 7 min 35 s
  27. 52
  28. 25
  29. 289
  30. 30
  31. 381
  32. 61
  33. 84
  34. 410
  35. 136
  36. 14
  37. 48
  38. 26
  39. 40
  40. 399

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