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Video Editing Worksheet: Video Length

Animation and design lesson 21: Video length sums · Set 229 · 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 21-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  2. 2.⏱️ A 20-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  3. 3.⏱️ Speeding a clip up to 2× makes it … (a) twice as long (b) the same length (c) silent (d) half as long
  4. 4.⏱️ A video is 185 seconds long. How long is that in minutes and seconds? (a) 3 min 5 s (b) 1 min 85 s (c) 3 min 35 s (d) 4 min 5 s
  5. 5.⏱️ A video has three clips of 58, 26 and 33 seconds. How long is the video (in seconds)?
  6. 6.⏱️ How many seconds is 3 minutes 57 seconds?
  7. 7.⏱️ How many seconds are in 1 minute? (a) 30 (b) 60 (c) 100 (d) 10
  8. 8.⏱️ A 7-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  9. 9.⏱️ Your video must be 60 seconds long. Your clips add up to 53 seconds. How many more seconds of video do you need?
  10. 10.⏱️ A 34-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  11. 11.⏱️ How many seconds is 9 minutes 44 seconds?
  12. 12.⏱️ How many seconds is 5 minutes 29 seconds?
  13. 13.⏱️ A video has three clips of 21, 8 and 6 seconds. How long is the video (in seconds)?
  14. 14.⏱️ A 17-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  15. 15.⏱️ A video is 280 seconds long. How long is that in minutes and seconds? (a) 4 min 10 s (b) 4 min 40 s (c) 2 min 80 s (d) 5 min 40 s
  16. 16.⏱️ A video has three clips of 53, 32 and 43 seconds. How long is the video (in seconds)?
  17. 17.⏱️ How many seconds is 4 minutes 49 seconds?
  18. 18.⏱️ How many seconds is 6 minutes 17 seconds?
  19. 19.⏱️ Your video must be 90 seconds long. Your clips add up to 10 seconds. How many more seconds of video do you need?
  20. 20.⏱️ Your video must be 90 seconds long. Your clips add up to 85 seconds. How many more seconds of video do you need?
  21. 21.⏱️ How many seconds is 5 minutes 23 seconds?
  22. 22.⏱️ A video is 130 seconds long. How long is that in minutes and seconds? (a) 3 min 10 s (b) 2 min 10 s (c) 2 min 40 s (d) 1 min 30 s
  23. 23.⏱️ Your video must be 120 seconds long. Your clips add up to 20 seconds. How many more seconds of video do you need?
  24. 24.⏱️ Your video must be 180 seconds long. Your clips add up to 10 seconds. How many more seconds of video do you need?
  25. 25.⏱️ A video is 205 seconds long. How long is that in minutes and seconds? (a) 3 min 25 s (b) 2 min 5 s (c) 4 min 25 s (d) 3 min 55 s
  26. 26.⏱️ Your video must be 90 seconds long. Your clips add up to 45 seconds. How many more seconds of video do you need?
  27. 27.⏱️ A video is 115 seconds long. How long is that in minutes and seconds? (a) 1 min 55 s (b) 1 min 15 s (c) 1 min 25 s (d) 2 min 55 s
  28. 28.⏱️ Your video must be 120 seconds long. Your clips add up to 57 seconds. How many more seconds of video do you need?
  29. 29.⏱️ How many seconds is 4 minutes 16 seconds?
  30. 30.⏱️ How many seconds is 2 minutes 45 seconds?
  31. 31.⏱️ Your video must be 90 seconds long. Your clips add up to 33 seconds. How many more seconds of video do you need?
  32. 32.⏱️ A video is 240 seconds long. How long is that in minutes and seconds? (a) 4 min 0 s (b) 5 min 0 s (c) 4 min 30 s (d) 2 min 40 s
  33. 33.⏱️ A 16-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  34. 34.⏱️ When you put clips one after another, the video length is … (a) the shortest clip (b) the sum of the clips (c) always 1 minute (d) the longest clip
  35. 35.⏱️ How many seconds is 6 minutes 57 seconds?
  36. 36.⏱️ A video is 290 seconds long. How long is that in minutes and seconds? (a) 4 min 50 s (b) 2 min 90 s (c) 4 min 20 s (d) 5 min 50 s
  37. 37.⏱️ A video is 570 seconds long. How long is that in minutes and seconds? (a) 9 min 0 s (b) 10 min 30 s (c) 9 min 30 s (d) 5 min 70 s
  38. 38.⏱️ How many seconds is 1 minute 19 seconds?
  39. 39.⏱️ A video has three clips of 24, 19 and 12 seconds. How long is the video (in seconds)?
  40. 40.⏱️ How many seconds is 2 minutes 44 seconds?

Answer key

  1. 42
  2. 10
  3. half as long
  4. 3 min 5 s
  5. 117
  6. 237
  7. 60
  8. 14
  9. 7
  10. 17
  11. 584
  12. 329
  13. 35
  14. 34
  15. 4 min 40 s
  16. 128
  17. 289
  18. 377
  19. 80
  20. 5
  21. 323
  22. 2 min 10 s
  23. 100
  24. 170
  25. 3 min 25 s
  26. 45
  27. 1 min 55 s
  28. 63
  29. 256
  30. 165
  31. 57
  32. 4 min 0 s
  33. 32
  34. the sum of the clips
  35. 417
  36. 4 min 50 s
  37. 9 min 30 s
  38. 79
  39. 55
  40. 164

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