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Video Editing Worksheet: Video Length

Animation and design lesson 21: Video length sums · Set 31 · 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 video has three clips of 33, 54 and 10 seconds. How long is the video (in seconds)?
  2. 2.⏱️ Your video must be 180 seconds long. Your clips add up to 12 seconds. How many more seconds of video do you need?
  3. 3.⏱️ A video has three clips of 55, 56 and 21 seconds. How long is the video (in seconds)?
  4. 4.⏱️ A video has three clips of 5, 41 and 52 seconds. How long is the video (in seconds)?
  5. 5.⏱️ A 72-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  6. 6.⏱️ A 23-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  7. 7.⏱️ Your video must be 90 seconds long. Your clips add up to 35 seconds. How many more seconds of video do you need?
  8. 8.⏱️ When you put clips one after another, the video length is … (a) always 1 minute (b) the longest clip (c) the shortest clip (d) the sum of the clips
  9. 9.⏱️ How many seconds are in 1 minute? (a) 10 (b) 100 (c) 30 (d) 60
  10. 10.⏱️ Speeding a clip up to 2× makes it … (a) the same length (b) silent (c) twice as long (d) half as long
  11. 11.⏱️ How many seconds is 5 minutes 19 seconds?
  12. 12.⏱️ A video has three clips of 16, 38 and 50 seconds. How long is the video (in seconds)?
  13. 13.⏱️ A 29-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  14. 14.⏱️ A video has three clips of 45, 59 and 7 seconds. How long is the video (in seconds)?
  15. 15.⏱️ A video is 130 seconds long. How long is that in minutes and seconds? (a) 3 min 10 s (b) 1 min 30 s (c) 2 min 10 s (d) 2 min 40 s
  16. 16.⏱️ A 116-second clip is sped up to 4× speed. How long does it last now (in seconds)?
  17. 17.⏱️ A 26-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  18. 18.⏱️ A 14-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  19. 19.⏱️ A video is 455 seconds long. How long is that in minutes and seconds? (a) 7 min 5 s (b) 8 min 35 s (c) 7 min 35 s (d) 4 min 55 s
  20. 20.⏱️ A video is 205 seconds long. How long is that in minutes and seconds? (a) 2 min 5 s (b) 3 min 55 s (c) 3 min 25 s (d) 4 min 25 s
  21. 21.⏱️ A 15-second clip is sped up to 3× speed. How long does it last now (in seconds)?
  22. 22.⏱️ A video has three clips of 33, 57 and 6 seconds. How long is the video (in seconds)?
  23. 23.⏱️ A video is 70 seconds long. How long is that in minutes and seconds? (a) 3 min 10 s (b) 2 min 10 s (c) 1 min 40 s (d) 1 min 10 s
  24. 24.⏱️ A video is 75 seconds long. How long is that in minutes and seconds? (a) 2 min 15 s (b) 1 min 45 s (c) 1 min 15 s (d) 3 min 15 s
  25. 25.⏱️ How many seconds is 3 minutes 15 seconds?
  26. 26.⏱️ A 15-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  27. 27.⏱️ A 34-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  28. 28.⏱️ How many seconds is 4 minutes 49 seconds?
  29. 29.⏱️ How many seconds is 3 minutes 47 seconds?
  30. 30.⏱️ A 38-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  31. 31.⏱️ How many seconds is 2 minutes 4 seconds?
  32. 32.⏱️ A 16-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  33. 33.⏱️ A video is 335 seconds long. How long is that in minutes and seconds? (a) 3 min 35 s (b) 5 min 5 s (c) 5 min 35 s (d) 6 min 35 s
  34. 34.⏱️ A video is 260 seconds long. How long is that in minutes and seconds? (a) 5 min 20 s (b) 2 min 60 s (c) 4 min 50 s (d) 4 min 20 s
  35. 35.⏱️ How many seconds is 6 minutes 58 seconds?
  36. 36.⏱️ A 30-second clip is sped up to 3× speed. How long does it last now (in seconds)?
  37. 37.⏱️ A video has three clips of 58, 54 and 37 seconds. How long is the video (in seconds)?
  38. 38.⏱️ A video has three clips of 12, 14 and 26 seconds. How long is the video (in seconds)?
  39. 39.⏱️ A video has three clips of 13, 36 and 10 seconds. How long is the video (in seconds)?
  40. 40.⏱️ A video has three clips of 19, 16 and 31 seconds. How long is the video (in seconds)?

Answer key

  1. 97
  2. 168
  3. 132
  4. 98
  5. 36
  6. 46
  7. 55
  8. the sum of the clips
  9. 60
  10. half as long
  11. 319
  12. 104
  13. 58
  14. 111
  15. 2 min 10 s
  16. 29
  17. 52
  18. 7
  19. 7 min 35 s
  20. 3 min 25 s
  21. 5
  22. 96
  23. 1 min 10 s
  24. 1 min 15 s
  25. 195
  26. 30
  27. 17
  28. 289
  29. 227
  30. 19
  31. 124
  32. 32
  33. 5 min 35 s
  34. 4 min 20 s
  35. 418
  36. 10
  37. 149
  38. 52
  39. 59
  40. 66

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