← Video length sums lesson New set →

Video Editing Worksheet: Video Length

Animation and design lesson 21: Video length sums · Set 244 · 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 4 minutes 20 seconds?
  2. 2.⏱️ How many seconds is 3 minutes 4 seconds?
  3. 3.⏱️ Your video must be 180 seconds long. Your clips add up to 93 seconds. How many more seconds of video do you need?
  4. 4.⏱️ A video has three clips of 25, 31 and 12 seconds. How long is the video (in seconds)?
  5. 5.⏱️ A 10-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  6. 6.⏱️ How many seconds are in 1 minute? (a) 100 (b) 60 (c) 30 (d) 10
  7. 7.⏱️ A video has three clips of 14, 13 and 40 seconds. How long is the video (in seconds)?
  8. 8.⏱️ Your video must be 120 seconds long. Your clips add up to 47 seconds. How many more seconds of video do you need?
  9. 9.⏱️ A 7-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  10. 10.⏱️ A video has three clips of 16, 48 and 46 seconds. How long is the video (in seconds)?
  11. 11.⏱️ Your video must be 90 seconds long. Your clips add up to 21 seconds. How many more seconds of video do you need?
  12. 12.⏱️ How many seconds is 5 minutes 48 seconds?
  13. 13.⏱️ When you put clips one after another, the video length is … (a) the sum of the clips (b) always 1 minute (c) the shortest clip (d) the longest clip
  14. 14.⏱️ How many seconds is 2 minutes 18 seconds?
  15. 15.⏱️ A video is 570 seconds long. How long is that in minutes and seconds? (a) 5 min 70 s (b) 10 min 30 s (c) 9 min 30 s (d) 9 min 0 s
  16. 16.⏱️ A video has three clips of 15, 35 and 46 seconds. How long is the video (in seconds)?
  17. 17.⏱️ A video is 410 seconds long. How long is that in minutes and seconds? (a) 6 min 20 s (b) 4 min 10 s (c) 7 min 50 s (d) 6 min 50 s
  18. 18.⏱️ A video is 265 seconds long. How long is that in minutes and seconds? (a) 5 min 25 s (b) 2 min 65 s (c) 4 min 25 s (d) 4 min 55 s
  19. 19.⏱️ A video has three clips of 60, 13 and 39 seconds. How long is the video (in seconds)?
  20. 20.⏱️ A 28-second clip is sped up to 4× speed. How long does it last now (in seconds)?
  21. 21.⏱️ A 20-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  22. 22.⏱️ Speeding a clip up to 2× makes it … (a) silent (b) twice as long (c) the same length (d) half as long
  23. 23.⏱️ A video has three clips of 14, 24 and 39 seconds. How long is the video (in seconds)?
  24. 24.⏱️ A video is 495 seconds long. How long is that in minutes and seconds? (a) 9 min 15 s (b) 8 min 15 s (c) 8 min 45 s (d) 4 min 95 s
  25. 25.⏱️ A video has three clips of 13, 34 and 16 seconds. How long is the video (in seconds)?
  26. 26.⏱️ A video has three clips of 18, 5 and 7 seconds. How long is the video (in seconds)?
  27. 27.⏱️ A 13-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  28. 28.⏱️ A 24-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  29. 29.⏱️ A video is 475 seconds long. How long is that in minutes and seconds? (a) 7 min 25 s (b) 4 min 75 s (c) 7 min 55 s (d) 8 min 55 s
  30. 30.⏱️ Your video must be 90 seconds long. Your clips add up to 45 seconds. How many more seconds of video do you need?
  31. 31.⏱️ How many seconds is 2 minutes 40 seconds?
  32. 32.⏱️ A 20-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  33. 33.⏱️ A 68-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  34. 34.⏱️ A 96-second clip is sped up to 4× speed. How long does it last now (in seconds)?
  35. 35.⏱️ A video has three clips of 28, 37 and 18 seconds. How long is the video (in seconds)?
  36. 36.⏱️ A video has three clips of 9, 20 and 28 seconds. How long is the video (in seconds)?
  37. 37.⏱️ A video has three clips of 42, 24 and 41 seconds. How long is the video (in seconds)?
  38. 38.⏱️ Your video must be 90 seconds long. Your clips add up to 51 seconds. How many more seconds of video do you need?
  39. 39.⏱️ A video has three clips of 23, 7 and 18 seconds. How long is the video (in seconds)?
  40. 40.⏱️ How many seconds is 1 minute 26 seconds?

Answer key

  1. 260
  2. 184
  3. 87
  4. 68
  5. 20
  6. 60
  7. 67
  8. 73
  9. 14
  10. 110
  11. 69
  12. 348
  13. the sum of the clips
  14. 138
  15. 9 min 30 s
  16. 96
  17. 6 min 50 s
  18. 4 min 25 s
  19. 112
  20. 7
  21. 40
  22. half as long
  23. 77
  24. 8 min 15 s
  25. 63
  26. 30
  27. 26
  28. 48
  29. 7 min 55 s
  30. 45
  31. 160
  32. 10
  33. 34
  34. 24
  35. 83
  36. 57
  37. 107
  38. 39
  39. 48
  40. 86

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