← Video length sums lesson New set →

Video Editing Worksheet: Video Length

Animation and design lesson 21: Video length sums · Set 241 · 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 7-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  2. 2.⏱️ When you put clips one after another, the video length is … (a) the longest clip (b) the sum of the clips (c) the shortest clip (d) always 1 minute
  3. 3.⏱️ A 36-second clip is sped up to 3× speed. How long does it last now (in seconds)?
  4. 4.⏱️ Your video must be 90 seconds long. Your clips add up to 74 seconds. How many more seconds of video do you need?
  5. 5.⏱️ A 66-second clip is sped up to 3× speed. How long does it last now (in seconds)?
  6. 6.⏱️ A 116-second clip is sped up to 4× speed. How long does it last now (in seconds)?
  7. 7.⏱️ A video is 590 seconds long. How long is that in minutes and seconds? (a) 5 min 90 s (b) 9 min 50 s (c) 10 min 50 s (d) 9 min 20 s
  8. 8.⏱️ A video is 120 seconds long. How long is that in minutes and seconds? (a) 2 min 30 s (b) 3 min 0 s (c) 2 min 0 s (d) 1 min 20 s
  9. 9.⏱️ A 74-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  10. 10.⏱️ A video has three clips of 52, 51 and 59 seconds. How long is the video (in seconds)?
  11. 11.⏱️ A 24-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  12. 12.⏱️ A 50-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  13. 13.⏱️ How many seconds is 2 minutes 13 seconds?
  14. 14.⏱️ A 10-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  15. 15.⏱️ A video is 175 seconds long. How long is that in minutes and seconds? (a) 3 min 55 s (b) 2 min 55 s (c) 1 min 75 s (d) 2 min 25 s
  16. 16.⏱️ Your video must be 60 seconds long. Your clips add up to 11 seconds. How many more seconds of video do you need?
  17. 17.⏱️ How many seconds are in 1 minute? (a) 10 (b) 60 (c) 30 (d) 100
  18. 18.⏱️ A video is 510 seconds long. How long is that in minutes and seconds? (a) 8 min 0 s (b) 5 min 10 s (c) 8 min 30 s (d) 9 min 30 s
  19. 19.⏱️ Your video must be 60 seconds long. Your clips add up to 8 seconds. How many more seconds of video do you need?
  20. 20.⏱️ A video is 60 seconds long. How long is that in minutes and seconds? (a) 2 min 0 s (b) 3 min 0 s (c) 1 min 0 s (d) 1 min 30 s
  21. 21.⏱️ Your video must be 120 seconds long. Your clips add up to 95 seconds. How many more seconds of video do you need?
  22. 22.⏱️ A 76-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  23. 23.⏱️ Your video must be 90 seconds long. Your clips add up to 47 seconds. How many more seconds of video do you need?
  24. 24.⏱️ A 25-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  25. 25.⏱️ Your video must be 90 seconds long. Your clips add up to 41 seconds. How many more seconds of video do you need?
  26. 26.⏱️ Your video must be 180 seconds long. Your clips add up to 126 seconds. How many more seconds of video do you need?
  27. 27.⏱️ A 5-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  28. 28.⏱️ A video is 230 seconds long. How long is that in minutes and seconds? (a) 2 min 30 s (b) 3 min 20 s (c) 4 min 50 s (d) 3 min 50 s
  29. 29.⏱️ A 34-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  30. 30.⏱️ How many seconds is 2 minutes 10 seconds?
  31. 31.⏱️ A 40-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  32. 32.⏱️ A 14-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  33. 33.⏱️ A video has three clips of 33, 23 and 41 seconds. How long is the video (in seconds)?
  34. 34.⏱️ A 62-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  35. 35.⏱️ A 20-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  36. 36.⏱️ A 52-second clip is sped up to 4× speed. How long does it last now (in seconds)?
  37. 37.⏱️ A video is 170 seconds long. How long is that in minutes and seconds? (a) 1 min 70 s (b) 2 min 50 s (c) 3 min 50 s (d) 2 min 20 s
  38. 38.⏱️ A video has three clips of 44, 53 and 58 seconds. How long is the video (in seconds)?
  39. 39.⏱️ How many seconds is 4 minutes 42 seconds?
  40. 40.⏱️ Your video must be 60 seconds long. Your clips add up to 14 seconds. How many more seconds of video do you need?

Answer key

  1. 14
  2. the sum of the clips
  3. 12
  4. 16
  5. 22
  6. 29
  7. 9 min 50 s
  8. 2 min 0 s
  9. 37
  10. 162
  11. 12
  12. 25
  13. 133
  14. 5
  15. 2 min 55 s
  16. 49
  17. 60
  18. 8 min 30 s
  19. 52
  20. 1 min 0 s
  21. 25
  22. 38
  23. 43
  24. 50
  25. 49
  26. 54
  27. 10
  28. 3 min 50 s
  29. 17
  30. 130
  31. 20
  32. 28
  33. 97
  34. 31
  35. 40
  36. 13
  37. 2 min 50 s
  38. 155
  39. 282
  40. 46

Free animation and design lessons, practice and worksheets at talentjr.in/animation-for-kids