Video Editing Worksheet: Video Length

Animation and design lesson 21: Video length sums · Set 25 · 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.⏱️ A 19-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
2. 2.⏱️ Speeding a clip up to 2× makes it … (a) twice as long (b) the same length (c) silent (d) half as long
3. 3.⏱️ A video is 330 seconds long. How long is that in minutes and seconds? (a) 3 min 30 s (b) 5 min 30 s (c) 6 min 30 s (d) 5 min 0 s
4. 4.⏱️ How many seconds are in 1 minute? (a) 60 (b) 10 (c) 30 (d) 100
5. 5.⏱️ A 20-second clip is sped up to 4× speed. How long does it last now (in seconds)?
6. 6.⏱️ A video has three clips of 29, 43 and 42 seconds. How long is the video (in seconds)?
7. 7.⏱️ Your video must be 60 seconds long. Your clips add up to 27 seconds. How many more seconds of video do you need?
8. 8.⏱️ A 10-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
9. 9.⏱️ A 46-second clip is sped up to 2× speed. How long does it last now (in seconds)?
10. 10.⏱️ How many seconds is 9 minutes 55 seconds?
11. 11.⏱️ A video has three clips of 18, 48 and 52 seconds. How long is the video (in seconds)?
12. 12.⏱️ A video has three clips of 40, 60 and 19 seconds. How long is the video (in seconds)?
13. 13.⏱️ 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
14. 14.⏱️ How many seconds is 9 minutes 15 seconds?
15. 15.⏱️ How many seconds is 8 minutes 59 seconds?
16. 16.⏱️ A 36-second clip is sped up to 2× speed. How long does it last now (in seconds)?
17. 17.⏱️ A video is 300 seconds long. How long is that in minutes and seconds? (a) 5 min 30 s (b) 6 min 0 s (c) 3 min 0 s (d) 5 min 0 s
18. 18.⏱️ A video is 155 seconds long. How long is that in minutes and seconds? (a) 2 min 35 s (b) 3 min 35 s (c) 2 min 5 s (d) 1 min 55 s
19. 19.⏱️ How many seconds is 9 minutes 1 second?
20. 20.⏱️ A video has three clips of 60, 35 and 50 seconds. How long is the video (in seconds)?
21. 21.⏱️ How many seconds is 1 minute 26 seconds?
22. 22.⏱️ A 22-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
23. 23.⏱️ An 84-second clip is sped up to 3× speed. How long does it last now (in seconds)?
24. 24.⏱️ A video is 220 seconds long. How long is that in minutes and seconds? (a) 4 min 40 s (b) 3 min 40 s (c) 3 min 10 s (d) 2 min 20 s
25. 25.⏱️ A 56-second clip is sped up to 2× speed. How long does it last now (in seconds)?
26. 26.⏱️ How many seconds is 6 minutes 16 seconds?
27. 27.⏱️ A video has three clips of 17, 52 and 32 seconds. How long is the video (in seconds)?
28. 28.⏱️ A video is 310 seconds long. How long is that in minutes and seconds? (a) 6 min 10 s (b) 3 min 10 s (c) 5 min 40 s (d) 5 min 10 s
29. 29.⏱️ A video has three clips of 12, 41 and 20 seconds. How long is the video (in seconds)?
30. 30.⏱️ A video is 165 seconds long. How long is that in minutes and seconds? (a) 2 min 15 s (b) 2 min 45 s (c) 3 min 45 s (d) 1 min 65 s
31. 31.⏱️ A 23-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
32. 32.⏱️ A 16-second clip is slowed to half speed (slow motion). 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.⏱️ How many seconds is 8 minutes 24 seconds?
35. 35.⏱️ How many seconds is 4 minutes 16 seconds?
36. 36.⏱️ A video is 315 seconds long. How long is that in minutes and seconds? (a) 6 min 15 s (b) 5 min 45 s (c) 3 min 15 s (d) 5 min 15 s
37. 37.⏱️ Your video must be 60 seconds long. Your clips add up to 53 seconds. How many more seconds of video do you need?
38. 38.⏱️ Your video must be 60 seconds long. Your clips add up to 5 seconds. How many more seconds of video do you need?
39. 39.⏱️ A 5-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
40. 40.⏱️ How many seconds is 4 minutes 15 seconds?

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