← Video length sums lesson New set →

Video Editing Worksheet: Video Length

Animation and design lesson 21: Video length sums · Set 156 · 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 video is 495 seconds long. How long is that in minutes and seconds? (a) 9 min 15 s (b) 8 min 45 s (c) 8 min 15 s (d) 4 min 95 s
  2. 2.⏱️ A 17-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  3. 3.⏱️ A 9-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  4. 4.⏱️ Your video must be 90 seconds long. Your clips add up to 57 seconds. How many more seconds of video do you need?
  5. 5.⏱️ When you put clips one after another, the video length is … (a) the shortest clip (b) always 1 minute (c) the longest clip (d) the sum of the clips
  6. 6.⏱️ A video is 350 seconds long. How long is that in minutes and seconds? (a) 3 min 50 s (b) 5 min 50 s (c) 6 min 50 s (d) 5 min 20 s
  7. 7.⏱️ A 19-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  8. 8.⏱️ An 84-second clip is sped up to 4× speed. How long does it last now (in seconds)?
  9. 9.⏱️ A 68-second clip is sped up to 4× speed. How long does it last now (in seconds)?
  10. 10.⏱️ How many seconds are in 1 minute? (a) 30 (b) 60 (c) 100 (d) 10
  11. 11.⏱️ A 46-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  12. 12.⏱️ A video is 75 seconds long. How long is that in minutes and seconds? (a) 3 min 15 s (b) 1 min 15 s (c) 1 min 45 s (d) 2 min 15 s
  13. 13.⏱️ Your video must be 90 seconds long. Your clips add up to 22 seconds. How many more seconds of video do you need?
  14. 14.⏱️ A video is 445 seconds long. How long is that in minutes and seconds? (a) 4 min 45 s (b) 7 min 25 s (c) 8 min 25 s (d) 7 min 55 s
  15. 15.⏱️ A video has three clips of 33, 54 and 24 seconds. How long is the video (in seconds)?
  16. 16.⏱️ A video has three clips of 30, 10 and 45 seconds. How long is the video (in seconds)?
  17. 17.⏱️ Your video must be 90 seconds long. Your clips add up to 49 seconds. How many more seconds of video do you need?
  18. 18.⏱️ How many seconds is 6 minutes 51 seconds?
  19. 19.⏱️ A video has three clips of 19, 13 and 53 seconds. How long is the video (in seconds)?
  20. 20.⏱️ A 15-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  21. 21.⏱️ A video has three clips of 52, 32 and 17 seconds. How long is the video (in seconds)?
  22. 22.⏱️ A 20-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  23. 23.⏱️ Speeding a clip up to 2× makes it … (a) half as long (b) silent (c) twice as long (d) the same length
  24. 24.⏱️ A video has three clips of 18, 27 and 42 seconds. How long is the video (in seconds)?
  25. 25.⏱️ How many seconds is 6 minutes 6 seconds?
  26. 26.⏱️ A video has three clips of 59, 31 and 58 seconds. How long is the video (in seconds)?
  27. 27.⏱️ A 72-second clip is sped up to 3× speed. How long does it last now (in seconds)?
  28. 28.⏱️ A 54-second clip is sped up to 3× speed. How long does it last now (in seconds)?
  29. 29.⏱️ Your video must be 60 seconds long. Your clips add up to 43 seconds. How many more seconds of video do you need?
  30. 30.⏱️ An 8-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  31. 31.⏱️ Your video must be 180 seconds long. Your clips add up to 75 seconds. How many more seconds of video do you need?
  32. 32.⏱️ A 60-second clip is sped up to 3× speed. How long does it last now (in seconds)?
  33. 33.⏱️ A video is 230 seconds long. How long is that in minutes and seconds? (a) 3 min 20 s (b) 4 min 50 s (c) 3 min 50 s (d) 2 min 30 s
  34. 34.⏱️ A 23-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
  35. 35.⏱️ A video has three clips of 17, 35 and 53 seconds. How long is the video (in seconds)?
  36. 36.⏱️ Your video must be 180 seconds long. Your clips add up to 40 seconds. How many more seconds of video do you need?
  37. 37.⏱️ A video is 195 seconds long. How long is that in minutes and seconds? (a) 3 min 15 s (b) 4 min 15 s (c) 3 min 45 s (d) 1 min 95 s
  38. 38.⏱️ Your video must be 60 seconds long. Your clips add up to 19 seconds. How many more seconds of video do you need?
  39. 39.⏱️ A 50-second clip is sped up to 2× speed. How long does it last now (in seconds)?
  40. 40.⏱️ A video is 205 seconds long. How long is that in minutes and seconds? (a) 4 min 25 s (b) 3 min 55 s (c) 3 min 25 s (d) 2 min 5 s

Answer key

  1. 8 min 15 s
  2. 34
  3. 18
  4. 33
  5. the sum of the clips
  6. 5 min 50 s
  7. 38
  8. 21
  9. 17
  10. 60
  11. 23
  12. 1 min 15 s
  13. 68
  14. 7 min 25 s
  15. 111
  16. 85
  17. 41
  18. 411
  19. 85
  20. 30
  21. 101
  22. 40
  23. half as long
  24. 87
  25. 366
  26. 148
  27. 24
  28. 18
  29. 17
  30. 16
  31. 105
  32. 20
  33. 3 min 50 s
  34. 46
  35. 105
  36. 140
  37. 3 min 15 s
  38. 41
  39. 25
  40. 3 min 25 s

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