Video Editing Worksheet: Video Length

Animation and design lesson 21: Video length sums · Set 250 · 40 questions

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.

1. 1.⏱️ Your video must be 90 seconds long. Your clips add up to 32 seconds. How many more seconds of video do you need?
2. 2.⏱️ A video is 570 seconds long. How long is that in minutes and seconds? (a) 9 min 30 s (b) 10 min 30 s (c) 5 min 70 s (d) 9 min 0 s
3. 3.⏱️ How many seconds are in 1 minute? (a) 10 (b) 30 (c) 60 (d) 100
4. 4.⏱️ How many seconds is 7 minutes 3 seconds?
5. 5.⏱️ How many seconds is 1 minute 54 seconds?
6. 6.⏱️ Speeding a clip up to 2× makes it … (a) the same length (b) twice as long (c) half as long (d) silent
7. 7.⏱️ A video has three clips of 53, 44 and 27 seconds. How long is the video (in seconds)?
8. 8.⏱️ Your video must be 120 seconds long. Your clips add up to 23 seconds. How many more seconds of video do you need?
9. 9.⏱️ Your video must be 120 seconds long. Your clips add up to 38 seconds. How many more seconds of video do you need?
10. 10.⏱️ A 28-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
11. 11.⏱️ How many seconds is 3 minutes 28 seconds?
12. 12.⏱️ A video is 580 seconds long. How long is that in minutes and seconds? (a) 9 min 10 s (b) 5 min 80 s (c) 10 min 40 s (d) 9 min 40 s
13. 13.⏱️ A 42-second clip is sped up to 3× speed. How long does it last now (in seconds)?
14. 14.⏱️ A 69-second clip is sped up to 3× speed. How long does it last now (in seconds)?
15. 15.⏱️ How many seconds is 1 minute 8 seconds?
16. 16.⏱️ How many seconds is 3 minutes 3 seconds?
17. 17.⏱️ A 9-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
18. 18.⏱️ A video is 275 seconds long. How long is that in minutes and seconds? (a) 4 min 35 s (b) 2 min 75 s (c) 4 min 5 s (d) 5 min 35 s
19. 19.⏱️ A 7-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
20. 20.⏱️ How many seconds is 9 minutes 35 seconds?
21. 21.⏱️ A 19-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
22. 22.⏱️ Your video must be 180 seconds long. Your clips add up to 157 seconds. How many more seconds of video do you need?
23. 23.⏱️ A 32-second clip is sped up to 2× speed. How long does it last now (in seconds)?
24. 24.⏱️ A 21-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
25. 25.⏱️ How many seconds is 5 minutes 50 seconds?
26. 26.⏱️ How many seconds is 3 minutes 50 seconds?
27. 27.⏱️ When you put clips one after another, the video length is … (a) the shortest clip (b) the sum of the clips (c) the longest clip (d) always 1 minute
28. 28.⏱️ A video has three clips of 8, 51 and 47 seconds. How long is the video (in seconds)?
29. 29.⏱️ How many seconds is 9 minutes 16 seconds?
30. 30.⏱️ A video has three clips of 25, 5 and 45 seconds. How long is the video (in seconds)?
31. 31.⏱️ A 28-second clip is sped up to 2× speed. How long does it last now (in seconds)?
32. 32.⏱️ An 18-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
33. 33.⏱️ A video has three clips of 46, 58 and 32 seconds. How long is the video (in seconds)?
34. 34.⏱️ A video is 160 seconds long. How long is that in minutes and seconds? (a) 2 min 10 s (b) 3 min 40 s (c) 2 min 40 s (d) 1 min 60 s
35. 35.⏱️ How many seconds is 6 minutes 12 seconds?
36. 36.⏱️ Your video must be 120 seconds long. Your clips add up to 19 seconds. How many more seconds of video do you need?
37. 37.⏱️ How many seconds is 9 minutes 40 seconds?
38. 38.⏱️ A video is 325 seconds long. How long is that in minutes and seconds? (a) 5 min 25 s (b) 6 min 25 s (c) 3 min 25 s (d) 5 min 55 s
39. 39.⏱️ Your video must be 90 seconds long. Your clips add up to 19 seconds. How many more seconds of video do you need?
40. 40.⏱️ A video has three clips of 30, 60 and 44 seconds. How long is the video (in seconds)?

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