← Video length sums lesson New set →

Video Editing Worksheet: Video Length

Animation and design lesson 21: Video length sums · Set 55 · 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 39-second clip is sped up to 3× speed. How long does it last now (in seconds)?
  2. 2.⏱️ How many seconds is 5 minutes 14 seconds?
  3. 3.⏱️ A video has three clips of 15, 60 and 56 seconds. How long is the video (in seconds)?
  4. 4.⏱️ A 21-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  5. 5.⏱️ Your video must be 60 seconds long. Your clips add up to 11 seconds. How many more seconds of video do you need?
  6. 6.⏱️ A 90-second clip is sped up to 3× speed. How long does it last now (in seconds)?
  7. 7.⏱️ How many seconds are in 1 minute? (a) 60 (b) 100 (c) 10 (d) 30
  8. 8.⏱️ A video has three clips of 14, 12 and 60 seconds. How long is the video (in seconds)?
  9. 9.⏱️ An 18-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  10. 10.⏱️ When you put clips one after another, the video length is … (a) the sum of the clips (b) always 1 minute (c) the longest clip (d) the shortest clip
  11. 11.⏱️ Speeding a clip up to 2× makes it … (a) the same length (b) twice as long (c) half as long (d) silent
  12. 12.⏱️ A 72-second clip is sped up to 3× speed. How long does it last now (in seconds)?
  13. 13.⏱️ How many seconds is 6 minutes 44 seconds?
  14. 14.⏱️ Your video must be 180 seconds long. Your clips add up to 68 seconds. How many more seconds of video do you need?
  15. 15.⏱️ A 46-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  16. 16.⏱️ A video is 60 seconds long. How long is that in minutes and seconds? (a) 1 min 0 s (b) 2 min 0 s (c) 1 min 30 s (d) 3 min 0 s
  17. 17.⏱️ A 10-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  18. 18.⏱️ A video has three clips of 11, 42 and 51 seconds. How long is the video (in seconds)?
  19. 19.⏱️ A 30-second clip is sped up to 3× speed. How long does it last now (in seconds)?
  20. 20.⏱️ How many seconds is 9 minutes 12 seconds?
  21. 21.⏱️ A video is 580 seconds long. How long is that in minutes and seconds? (a) 9 min 10 s (b) 5 min 80 s (c) 9 min 40 s (d) 10 min 40 s
  22. 22.⏱️ Your video must be 60 seconds long. Your clips add up to 25 seconds. How many more seconds of video do you need?
  23. 23.⏱️ A 105-second clip is sped up to 3× speed. How long does it last now (in seconds)?
  24. 24.⏱️ A 40-second clip is sped up to 4× speed. How long does it last now (in seconds)?
  25. 25.⏱️ How many seconds is 2 minutes 45 seconds?
  26. 26.⏱️ A 56-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  27. 27.⏱️ How many seconds is 5 minutes 18 seconds?
  28. 28.⏱️ A video has three clips of 52, 20 and 31 seconds. How long is the video (in seconds)?
  29. 29.⏱️ A video has three clips of 42, 36 and 55 seconds. How long is the video (in seconds)?
  30. 30.⏱️ Your video must be 90 seconds long. Your clips add up to 33 seconds. How many more seconds of video do you need?
  31. 31.⏱️ A video is 265 seconds long. How long is that in minutes and seconds? (a) 2 min 65 s (b) 4 min 25 s (c) 4 min 55 s (d) 5 min 25 s
  32. 32.⏱️ Your video must be 90 seconds long. Your clips add up to 8 seconds. How many more seconds of video do you need?
  33. 33.⏱️ Your video must be 120 seconds long. Your clips add up to 21 seconds. How many more seconds of video do you need?
  34. 34.⏱️ A 6-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  35. 35.⏱️ A 66-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  36. 36.⏱️ A 19-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  37. 37.⏱️ How many seconds is 9 minutes 5 seconds?
  38. 38.⏱️ A video has three clips of 51, 44 and 42 seconds. How long is the video (in seconds)?
  39. 39.⏱️ How many seconds is 5 minutes 20 seconds?
  40. 40.⏱️ A 14-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?

Answer key

  1. 13
  2. 314
  3. 131
  4. 42
  5. 49
  6. 30
  7. 60
  8. 86
  9. 36
  10. the sum of the clips
  11. half as long
  12. 24
  13. 404
  14. 112
  15. 23
  16. 1 min 0 s
  17. 20
  18. 104
  19. 10
  20. 552
  21. 9 min 40 s
  22. 35
  23. 35
  24. 10
  25. 165
  26. 28
  27. 318
  28. 103
  29. 133
  30. 57
  31. 4 min 25 s
  32. 82
  33. 99
  34. 12
  35. 33
  36. 38
  37. 545
  38. 137
  39. 320
  40. 28

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