← Video length sums lesson New set →

Video Editing Worksheet: Video Length

Animation and design lesson 21: Video length sums · Set 239 · 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) 10 (b) 100 (c) 30 (d) 60
  2. 2.⏱️ A video is 575 seconds long. How long is that in minutes and seconds? (a) 9 min 5 s (b) 5 min 75 s (c) 9 min 35 s (d) 10 min 35 s
  3. 3.⏱️ A 120-second clip is sped up to 4× speed. How long does it last now (in seconds)?
  4. 4.⏱️ Your video must be 60 seconds long. Your clips add up to 28 seconds. How many more seconds of video do you need?
  5. 5.⏱️ Your video must be 120 seconds long. Your clips add up to 87 seconds. How many more seconds of video do you need?
  6. 6.⏱️ A video has three clips of 25, 41 and 35 seconds. How long is the video (in seconds)?
  7. 7.⏱️ How many seconds is 1 minute 18 seconds?
  8. 8.⏱️ When you put clips one after another, the video length is … (a) the longest clip (b) the sum of the clips (c) always 1 minute (d) the shortest clip
  9. 9.⏱️ Your video must be 120 seconds long. Your clips add up to 18 seconds. How many more seconds of video do you need?
  10. 10.⏱️ A video has three clips of 50, 49 and 22 seconds. How long is the video (in seconds)?
  11. 11.⏱️ A video has three clips of 31, 5 and 23 seconds. How long is the video (in seconds)?
  12. 12.⏱️ A video is 115 seconds long. How long is that in minutes and seconds? (a) 1 min 55 s (b) 1 min 25 s (c) 1 min 15 s (d) 2 min 55 s
  13. 13.⏱️ A video is 435 seconds long. How long is that in minutes and seconds? (a) 7 min 45 s (b) 7 min 15 s (c) 4 min 35 s (d) 8 min 15 s
  14. 14.⏱️ A 16-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  15. 15.⏱️ An 81-second clip is sped up to 3× speed. How long does it last now (in seconds)?
  16. 16.⏱️ A video has three clips of 27, 47 and 44 seconds. How long is the video (in seconds)?
  17. 17.⏱️ A video is 125 seconds long. How long is that in minutes and seconds? (a) 1 min 25 s (b) 3 min 5 s (c) 2 min 35 s (d) 2 min 5 s
  18. 18.⏱️ How many seconds is 5 minutes 14 seconds?
  19. 19.⏱️ Speeding a clip up to 2× makes it … (a) the same length (b) twice as long (c) silent (d) half as long
  20. 20.⏱️ A video is 280 seconds long. How long is that in minutes and seconds? (a) 5 min 40 s (b) 4 min 40 s (c) 2 min 80 s (d) 4 min 10 s
  21. 21.⏱️ A 26-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  22. 22.⏱️ Your video must be 90 seconds long. Your clips add up to 58 seconds. How many more seconds of video do you need?
  23. 23.⏱️ Your video must be 60 seconds long. Your clips add up to 14 seconds. How many more seconds of video do you need?
  24. 24.⏱️ A 10-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  25. 25.⏱️ How many seconds is 2 minutes 55 seconds?
  26. 26.⏱️ A 20-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  27. 27.⏱️ A 72-second clip is sped up to 3× speed. How long does it last now (in seconds)?
  28. 28.⏱️ A video has three clips of 45, 11 and 56 seconds. How long is the video (in seconds)?
  29. 29.⏱️ Your video must be 90 seconds long. Your clips add up to 82 seconds. How many more seconds of video do you need?
  30. 30.⏱️ A video is 525 seconds long. How long is that in minutes and seconds? (a) 9 min 45 s (b) 5 min 25 s (c) 8 min 15 s (d) 8 min 45 s
  31. 31.⏱️ A video has three clips of 20, 16 and 36 seconds. How long is the video (in seconds)?
  32. 32.⏱️ A video has three clips of 47, 24 and 27 seconds. How long is the video (in seconds)?
  33. 33.⏱️ A 92-second clip is sped up to 4× speed. How long does it last now (in seconds)?
  34. 34.⏱️ Your video must be 60 seconds long. Your clips add up to 17 seconds. How many more seconds of video do you need?
  35. 35.⏱️ A video has three clips of 60, 7 and 57 seconds. How long is the video (in seconds)?
  36. 36.⏱️ A 20-second clip is sped up to 4× speed. How long does it last now (in seconds)?
  37. 37.⏱️ An 18-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  38. 38.⏱️ A 48-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  39. 39.⏱️ How many seconds is 6 minutes 10 seconds?
  40. 40.⏱️ How many seconds is 6 minutes 31 seconds?

Answer key

  1. 60
  2. 9 min 35 s
  3. 30
  4. 32
  5. 33
  6. 101
  7. 78
  8. the sum of the clips
  9. 102
  10. 121
  11. 59
  12. 1 min 55 s
  13. 7 min 15 s
  14. 8
  15. 27
  16. 118
  17. 2 min 5 s
  18. 314
  19. half as long
  20. 4 min 40 s
  21. 52
  22. 32
  23. 46
  24. 5
  25. 175
  26. 40
  27. 24
  28. 112
  29. 8
  30. 8 min 45 s
  31. 72
  32. 98
  33. 23
  34. 43
  35. 124
  36. 5
  37. 36
  38. 24
  39. 370
  40. 391

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