← Video length sums lesson New set →

Video Editing Worksheet: Video Length

Animation and design lesson 21: Video length sums · Set 139 · 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.⏱️ Your video must be 90 seconds long. Your clips add up to 15 seconds. How many more seconds of video do you need?
  2. 2.⏱️ A 56-second clip is sped up to 4× speed. How long does it last now (in seconds)?
  3. 3.⏱️ When you put clips one after another, the video length is … (a) always 1 minute (b) the shortest clip (c) the longest clip (d) the sum of the clips
  4. 4.⏱️ A video has three clips of 14, 14 and 34 seconds. How long is the video (in seconds)?
  5. 5.⏱️ How many seconds are in 1 minute? (a) 10 (b) 100 (c) 30 (d) 60
  6. 6.⏱️ A 14-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  7. 7.⏱️ A video is 175 seconds long. How long is that in minutes and seconds? (a) 2 min 25 s (b) 2 min 55 s (c) 1 min 75 s (d) 3 min 55 s
  8. 8.⏱️ How many seconds is 9 minutes 41 seconds?
  9. 9.⏱️ A video has three clips of 21, 13 and 57 seconds. How long is the video (in seconds)?
  10. 10.⏱️ A video has three clips of 17, 40 and 20 seconds. How long is the video (in seconds)?
  11. 11.⏱️ A video has three clips of 18, 59 and 45 seconds. How long is the video (in seconds)?
  12. 12.⏱️ Your video must be 90 seconds long. Your clips add up to 27 seconds. How many more seconds of video do you need?
  13. 13.⏱️ How many seconds is 3 minutes 2 seconds?
  14. 14.⏱️ A video has three clips of 25, 36 and 51 seconds. How long is the video (in seconds)?
  15. 15.⏱️ How many seconds is 7 minutes 30 seconds?
  16. 16.⏱️ A video has three clips of 47, 16 and 19 seconds. How long is the video (in seconds)?
  17. 17.⏱️ A video is 90 seconds long. How long is that in minutes and seconds? (a) 2 min 30 s (b) 3 min 30 s (c) 1 min 0 s (d) 1 min 30 s
  18. 18.⏱️ A video has three clips of 6, 59 and 27 seconds. How long is the video (in seconds)?
  19. 19.⏱️ An 11-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  20. 20.⏱️ A video has three clips of 46, 40 and 27 seconds. How long is the video (in seconds)?
  21. 21.⏱️ Speeding a clip up to 2× makes it … (a) silent (b) half as long (c) the same length (d) twice as long
  22. 22.⏱️ A video has three clips of 50, 6 and 60 seconds. How long is the video (in seconds)?
  23. 23.⏱️ How many seconds is 8 minutes 58 seconds?
  24. 24.⏱️ How many seconds is 3 minutes 27 seconds?
  25. 25.⏱️ A 3-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  26. 26.⏱️ Your video must be 180 seconds long. Your clips add up to 165 seconds. How many more seconds of video do you need?
  27. 27.⏱️ How many seconds is 7 minutes 20 seconds?
  28. 28.⏱️ How many seconds is 2 minutes 10 seconds?
  29. 29.⏱️ How many seconds is 4 minutes 8 seconds?
  30. 30.⏱️ A video is 165 seconds long. How long is that in minutes and seconds? (a) 2 min 45 s (b) 3 min 45 s (c) 2 min 15 s (d) 1 min 65 s
  31. 31.⏱️ A video has three clips of 57, 29 and 35 seconds. How long is the video (in seconds)?
  32. 32.⏱️ A 42-second clip is sped up to 3× speed. How long does it last now (in seconds)?
  33. 33.⏱️ Your video must be 120 seconds long. Your clips add up to 62 seconds. How many more seconds of video do you need?
  34. 34.⏱️ How many seconds is 3 minutes 46 seconds?
  35. 35.⏱️ A video is 355 seconds long. How long is that in minutes and seconds? (a) 3 min 55 s (b) 5 min 25 s (c) 5 min 55 s (d) 6 min 55 s
  36. 36.⏱️ A 45-second clip is sped up to 3× speed. How long does it last now (in seconds)?
  37. 37.⏱️ 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) 4 min 10 s (d) 2 min 80 s
  38. 38.⏱️ A video is 430 seconds long. How long is that in minutes and seconds? (a) 4 min 30 s (b) 7 min 40 s (c) 8 min 10 s (d) 7 min 10 s
  39. 39.⏱️ A video has three clips of 22, 19 and 16 seconds. How long is the video (in seconds)?
  40. 40.⏱️ Your video must be 60 seconds long. Your clips add up to 21 seconds. How many more seconds of video do you need?

Answer key

  1. 75
  2. 14
  3. the sum of the clips
  4. 62
  5. 60
  6. 28
  7. 2 min 55 s
  8. 581
  9. 91
  10. 77
  11. 122
  12. 63
  13. 182
  14. 112
  15. 450
  16. 82
  17. 1 min 30 s
  18. 92
  19. 22
  20. 113
  21. half as long
  22. 116
  23. 538
  24. 207
  25. 6
  26. 15
  27. 440
  28. 130
  29. 248
  30. 2 min 45 s
  31. 121
  32. 14
  33. 58
  34. 226
  35. 5 min 55 s
  36. 15
  37. 4 min 40 s
  38. 7 min 10 s
  39. 57
  40. 39

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