← Video length sums lesson New set →

Video Editing Worksheet: Video Length

Animation and design lesson 21: Video length sums · Set 174 · 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 is 8 minutes 53 seconds?
  2. 2.⏱️ Speeding a clip up to 2× makes it … (a) silent (b) half as long (c) the same length (d) twice as long
  3. 3.⏱️ Your video must be 180 seconds long. Your clips add up to 72 seconds. How many more seconds of video do you need?
  4. 4.⏱️ A 96-second clip is sped up to 3× speed. How long does it last now (in seconds)?
  5. 5.⏱️ A video has three clips of 55, 16 and 42 seconds. How long is the video (in seconds)?
  6. 6.⏱️ Your video must be 180 seconds long. Your clips add up to 52 seconds. How many more seconds of video do you need?
  7. 7.⏱️ How many seconds are in 1 minute? (a) 100 (b) 60 (c) 10 (d) 30
  8. 8.⏱️ A video has three clips of 15, 22 and 29 seconds. How long is the video (in seconds)?
  9. 9.⏱️ A video is 260 seconds long. How long is that in minutes and seconds? (a) 5 min 20 s (b) 2 min 60 s (c) 4 min 20 s (d) 4 min 50 s
  10. 10.⏱️ How many seconds is 1 minute 34 seconds?
  11. 11.⏱️ How many seconds is 2 minutes 36 seconds?
  12. 12.⏱️ When you put clips one after another, the video length is … (a) the shortest clip (b) always 1 minute (c) the sum of the clips (d) the longest clip
  13. 13.⏱️ A video has three clips of 44, 12 and 49 seconds. How long is the video (in seconds)?
  14. 14.⏱️ Your video must be 60 seconds long. Your clips add up to 11 seconds. How many more seconds of video do you need?
  15. 15.⏱️ A video has three clips of 48, 52 and 7 seconds. How long is the video (in seconds)?
  16. 16.⏱️ How many seconds is 3 minutes 50 seconds?
  17. 17.⏱️ A video has three clips of 17, 33 and 41 seconds. How long is the video (in seconds)?
  18. 18.⏱️ A 76-second clip is sped up to 4× speed. How long does it last now (in seconds)?
  19. 19.⏱️ A video has three clips of 25, 22 and 24 seconds. How long is the video (in seconds)?
  20. 20.⏱️ A 20-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  21. 21.⏱️ A video is 120 seconds long. How long is that in minutes and seconds? (a) 2 min 30 s (b) 1 min 20 s (c) 2 min 0 s (d) 3 min 0 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.⏱️ Your video must be 60 seconds long. Your clips add up to 49 seconds. How many more seconds of video do you need?
  24. 24.⏱️ A video has three clips of 5, 26 and 30 seconds. How long is the video (in seconds)?
  25. 25.⏱️ How many seconds is 2 minutes 18 seconds?
  26. 26.⏱️ Your video must be 90 seconds long. Your clips add up to 37 seconds. How many more seconds of video do you need?
  27. 27.⏱️ A 26-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  28. 28.⏱️ A 4-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  29. 29.⏱️ A 64-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  30. 30.⏱️ How many seconds is 3 minutes 11 seconds?
  31. 31.⏱️ Your video must be 180 seconds long. Your clips add up to 100 seconds. How many more seconds of video do you need?
  32. 32.⏱️ An 81-second clip is sped up to 3× speed. How long does it last now (in seconds)?
  33. 33.⏱️ A 3-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  34. 34.⏱️ Your video must be 120 seconds long. Your clips add up to 73 seconds. How many more seconds of video do you need?
  35. 35.⏱️ A 27-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  36. 36.⏱️ A 20-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  37. 37.⏱️ How many seconds is 7 minutes 26 seconds?
  38. 38.⏱️ A 10-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  39. 39.⏱️ How many seconds is 9 minutes 32 seconds?
  40. 40.⏱️ A video has three clips of 9, 28 and 44 seconds. How long is the video (in seconds)?

Answer key

  1. 533
  2. half as long
  3. 108
  4. 32
  5. 113
  6. 128
  7. 60
  8. 66
  9. 4 min 20 s
  10. 94
  11. 156
  12. the sum of the clips
  13. 105
  14. 49
  15. 107
  16. 230
  17. 91
  18. 19
  19. 71
  20. 10
  21. 2 min 0 s
  22. 35
  23. 11
  24. 61
  25. 138
  26. 53
  27. 52
  28. 8
  29. 32
  30. 191
  31. 80
  32. 27
  33. 6
  34. 47
  35. 54
  36. 40
  37. 446
  38. 20
  39. 572
  40. 81

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