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Video Editing Worksheet: Video Length

Animation and design lesson 21: Video length sums · Set 18 · 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 are in 1 minute? (a) 100 (b) 60 (c) 10 (d) 30
  2. 2.⏱️ Your video must be 120 seconds long. Your clips add up to 104 seconds. How many more seconds of video do you need?
  3. 3.⏱️ How many seconds is 8 minutes 8 seconds?
  4. 4.⏱️ A 13-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  5. 5.⏱️ A video has three clips of 35, 43 and 55 seconds. How long is the video (in seconds)?
  6. 6.⏱️ How many seconds is 7 minutes 8 seconds?
  7. 7.⏱️ Speeding a clip up to 2× makes it … (a) silent (b) twice as long (c) half as long (d) the same length
  8. 8.⏱️ A video has three clips of 35, 14 and 51 seconds. How long is the video (in seconds)?
  9. 9.⏱️ A video has three clips of 18, 28 and 7 seconds. How long is the video (in seconds)?
  10. 10.⏱️ How many seconds is 2 minutes 32 seconds?
  11. 11.⏱️ A video is 65 seconds long. How long is that in minutes and seconds? (a) 2 min 5 s (b) 3 min 5 s (c) 1 min 35 s (d) 1 min 5 s
  12. 12.⏱️ How many seconds is 3 minutes 8 seconds?
  13. 13.⏱️ Your video must be 90 seconds long. Your clips add up to 50 seconds. How many more seconds of video do you need?
  14. 14.⏱️ A 22-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  15. 15.⏱️ How many seconds is 5 minutes 50 seconds?
  16. 16.⏱️ Your video must be 120 seconds long. Your clips add up to 80 seconds. How many more seconds of video do you need?
  17. 17.⏱️ A video has three clips of 15, 28 and 33 seconds. How long is the video (in seconds)?
  18. 18.⏱️ Your video must be 180 seconds long. Your clips add up to 7 seconds. How many more seconds of video do you need?
  19. 19.⏱️ How many seconds is 7 minutes 54 seconds?
  20. 20.⏱️ How many seconds is 3 minutes 48 seconds?
  21. 21.⏱️ A video is 405 seconds long. How long is that in minutes and seconds? (a) 4 min 5 s (b) 6 min 15 s (c) 7 min 45 s (d) 6 min 45 s
  22. 22.⏱️ A video has three clips of 34, 20 and 8 seconds. How long is the video (in seconds)?
  23. 23.⏱️ How many seconds is 5 minutes 57 seconds?
  24. 24.⏱️ How many seconds is 6 minutes 25 seconds?
  25. 25.⏱️ A 6-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  26. 26.⏱️ A video has three clips of 5, 53 and 52 seconds. How long is the video (in seconds)?
  27. 27.⏱️ Your video must be 180 seconds long. Your clips add up to 49 seconds. How many more seconds of video do you need?
  28. 28.⏱️ Your video must be 120 seconds long. Your clips add up to 10 seconds. How many more seconds of video do you need?
  29. 29.⏱️ A video is 175 seconds long. How long is that in minutes and seconds? (a) 2 min 55 s (b) 1 min 75 s (c) 3 min 55 s (d) 2 min 25 s
  30. 30.⏱️ How many seconds is 2 minutes 35 seconds?
  31. 31.⏱️ A video has three clips of 26, 37 and 16 seconds. How long is the video (in seconds)?
  32. 32.⏱️ Your video must be 90 seconds long. Your clips add up to 35 seconds. How many more seconds of video do you need?
  33. 33.⏱️ A 60-second clip is sped up to 4× speed. How long does it last now (in seconds)?
  34. 34.⏱️ A video is 160 seconds long. How long is that in minutes and seconds? (a) 2 min 10 s (b) 3 min 40 s (c) 1 min 60 s (d) 2 min 40 s
  35. 35.⏱️ A 5-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  36. 36.⏱️ A video is 195 seconds long. How long is that in minutes and seconds? (a) 4 min 15 s (b) 3 min 45 s (c) 1 min 95 s (d) 3 min 15 s
  37. 37.⏱️ Your video must be 120 seconds long. Your clips add up to 90 seconds. How many more seconds of video do you need?
  38. 38.⏱️ A video has three clips of 12, 29 and 49 seconds. How long is the video (in seconds)?
  39. 39.⏱️ A 10-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  40. 40.⏱️ A 128-second clip is sped up to 4× speed. How long does it last now (in seconds)?

Answer key

  1. 60
  2. 16
  3. 488
  4. 26
  5. 133
  6. 428
  7. half as long
  8. 100
  9. 53
  10. 152
  11. 1 min 5 s
  12. 188
  13. 40
  14. 44
  15. 350
  16. 40
  17. 76
  18. 173
  19. 474
  20. 228
  21. 6 min 45 s
  22. 62
  23. 357
  24. 385
  25. 12
  26. 110
  27. 131
  28. 110
  29. 2 min 55 s
  30. 155
  31. 79
  32. 55
  33. 15
  34. 2 min 40 s
  35. 10
  36. 3 min 15 s
  37. 30
  38. 90
  39. 20
  40. 32

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