← Video length sums lesson New set →

Video Editing Worksheet: Video Length

Animation and design lesson 21: Video length sums · Set 107 · 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 120 seconds long. Your clips add up to 38 seconds. How many more seconds of video do you need?
  2. 2.⏱️ A 72-second clip is sped up to 3× speed. How long does it last now (in seconds)?
  3. 3.⏱️ How many seconds are in 1 minute? (a) 60 (b) 100 (c) 10 (d) 30
  4. 4.⏱️ A video has three clips of 49, 22 and 59 seconds. How long is the video (in seconds)?
  5. 5.⏱️ How many seconds is 6 minutes 48 seconds?
  6. 6.⏱️ A 28-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  7. 7.⏱️ When you put clips one after another, the video length is … (a) the sum of the clips (b) the longest clip (c) always 1 minute (d) the shortest clip
  8. 8.⏱️ A video has three clips of 58, 8 and 21 seconds. How long is the video (in seconds)?
  9. 9.⏱️ A video is 550 seconds long. How long is that in minutes and seconds? (a) 9 min 40 s (b) 9 min 10 s (c) 10 min 10 s (d) 5 min 50 s
  10. 10.⏱️ How many seconds is 1 minute 4 seconds?
  11. 11.⏱️ Your video must be 120 seconds long. Your clips add up to 35 seconds. How many more seconds of video do you need?
  12. 12.⏱️ An 84-second clip is sped up to 3× speed. How long does it last now (in seconds)?
  13. 13.⏱️ A video is 145 seconds long. How long is that in minutes and seconds? (a) 3 min 25 s (b) 2 min 25 s (c) 2 min 55 s (d) 1 min 45 s
  14. 14.⏱️ How many seconds is 3 minutes 54 seconds?
  15. 15.⏱️ A 4-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  16. 16.⏱️ Your video must be 90 seconds long. Your clips add up to 25 seconds. How many more seconds of video do you need?
  17. 17.⏱️ How many seconds is 4 minutes 9 seconds?
  18. 18.⏱️ Your video must be 60 seconds long. Your clips add up to 28 seconds. How many more seconds of video do you need?
  19. 19.⏱️ A 16-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  20. 20.⏱️ A 23-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  21. 21.⏱️ A video is 90 seconds long. How long is that in minutes and seconds? (a) 1 min 0 s (b) 1 min 30 s (c) 2 min 30 s (d) 3 min 30 s
  22. 22.⏱️ How many seconds is 4 minutes 46 seconds?
  23. 23.⏱️ Speeding a clip up to 2× makes it … (a) twice as long (b) the same length (c) silent (d) half as long
  24. 24.⏱️ A 74-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  25. 25.⏱️ A 15-second clip is sped up to 3× speed. How long does it last now (in seconds)?
  26. 26.⏱️ A 6-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  27. 27.⏱️ A video has three clips of 21, 14 and 29 seconds. How long is the video (in seconds)?
  28. 28.⏱️ A video is 585 seconds long. How long is that in minutes and seconds? (a) 9 min 15 s (b) 10 min 45 s (c) 9 min 45 s (d) 5 min 85 s
  29. 29.⏱️ A 76-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  30. 30.⏱️ A 26-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  31. 31.⏱️ Your video must be 60 seconds long. Your clips add up to 15 seconds. How many more seconds of video do you need?
  32. 32.⏱️ How many seconds is 2 minutes 9 seconds?
  33. 33.⏱️ A 27-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  34. 34.⏱️ How many seconds is 2 minutes 6 seconds?
  35. 35.⏱️ Your video must be 120 seconds long. Your clips add up to 31 seconds. How many more seconds of video do you need?
  36. 36.⏱️ A video has three clips of 36, 17 and 23 seconds. How long is the video (in seconds)?
  37. 37.⏱️ How many seconds is 8 minutes 23 seconds?
  38. 38.⏱️ A video has three clips of 40, 26 and 25 seconds. How long is the video (in seconds)?
  39. 39.⏱️ A video is 255 seconds long. How long is that in minutes and seconds? (a) 5 min 15 s (b) 4 min 45 s (c) 4 min 15 s (d) 2 min 55 s
  40. 40.⏱️ How many seconds is 3 minutes 3 seconds?

Answer key

  1. 82
  2. 24
  3. 60
  4. 130
  5. 408
  6. 14
  7. the sum of the clips
  8. 87
  9. 9 min 10 s
  10. 64
  11. 85
  12. 28
  13. 2 min 25 s
  14. 234
  15. 8
  16. 65
  17. 249
  18. 32
  19. 8
  20. 46
  21. 1 min 30 s
  22. 286
  23. half as long
  24. 37
  25. 5
  26. 12
  27. 64
  28. 9 min 45 s
  29. 38
  30. 52
  31. 45
  32. 129
  33. 54
  34. 126
  35. 89
  36. 76
  37. 503
  38. 91
  39. 4 min 15 s
  40. 183

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