Video Editing Worksheet: Video Length

Animation and design lesson 21: Video length sums · Set 160 · 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.⏱️ How many seconds is 2 minutes 41 seconds?
2. 2.⏱️ Speeding a clip up to 2× makes it … (a) silent (b) half as long (c) the same length (d) twice as long
3. 3.⏱️ How many seconds is 6 minutes 11 seconds?
4. 4.⏱️ A 48-second clip is sped up to 4× speed. How long does it last now (in seconds)?
5. 5.⏱️ How many seconds are in 1 minute? (a) 100 (b) 60 (c) 30 (d) 10
6. 6.⏱️ A 24-second clip is sped up to 2× speed. How long does it last now (in seconds)?
7. 7.⏱️ Your video must be 60 seconds long. Your clips add up to 15 seconds. How many more seconds of video do you need?
8. 8.⏱️ Your video must be 60 seconds long. Your clips add up to 16 seconds. How many more seconds of video do you need?
9. 9.⏱️ A video has three clips of 12, 18 and 6 seconds. How long is the video (in seconds)?
10. 10.⏱️ A video is 225 seconds long. How long is that in minutes and seconds? (a) 3 min 15 s (b) 4 min 45 s (c) 2 min 25 s (d) 3 min 45 s
11. 11.⏱️ A 15-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
12. 12.⏱️ A 7-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
13. 13.⏱️ A 12-second clip is sped up to 2× speed. How long does it last now (in seconds)?
14. 14.⏱️ Your video must be 60 seconds long. Your clips add up to 37 seconds. How many more seconds of video do you need?
15. 15.⏱️ A video has three clips of 5, 17 and 60 seconds. How long is the video (in seconds)?
16. 16.⏱️ A video is 250 seconds long. How long is that in minutes and seconds? (a) 4 min 40 s (b) 2 min 50 s (c) 5 min 10 s (d) 4 min 10 s
17. 17.⏱️ How many seconds is 5 minutes 33 seconds?
18. 18.⏱️ A video has three clips of 37, 16 and 17 seconds. How long is the video (in seconds)?
19. 19.⏱️ A video is 70 seconds long. How long is that in minutes and seconds? (a) 1 min 40 s (b) 2 min 10 s (c) 3 min 10 s (d) 1 min 10 s
20. 20.⏱️ A video has three clips of 8, 48 and 33 seconds. How long is the video (in seconds)?
21. 21.⏱️ A video is 365 seconds long. How long is that in minutes and seconds? (a) 6 min 5 s (b) 3 min 65 s (c) 6 min 35 s (d) 7 min 5 s
22. 22.⏱️ A 42-second clip is sped up to 2× speed. How long does it last now (in seconds)?
23. 23.⏱️ A video has three clips of 6, 42 and 59 seconds. How long is the video (in seconds)?
24. 24.⏱️ Your video must be 120 seconds long. Your clips add up to 13 seconds. How many more seconds of video do you need?
25. 25.⏱️ Your video must be 120 seconds long. Your clips add up to 17 seconds. How many more seconds of video do you need?
26. 26.⏱️ How many seconds is 4 minutes 55 seconds?
27. 27.⏱️ A 26-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
28. 28.⏱️ A video is 105 seconds long. How long is that in minutes and seconds? (a) 2 min 45 s (b) 1 min 15 s (c) 1 min 5 s (d) 1 min 45 s
29. 29.⏱️ Your video must be 180 seconds long. Your clips add up to 164 seconds. How many more seconds of video do you need?
30. 30.⏱️ A video has three clips of 42, 46 and 58 seconds. How long is the video (in seconds)?
31. 31.⏱️ An 11-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
32. 32.⏱️ A 111-second clip is sped up to 3× speed. How long does it last now (in seconds)?
33. 33.⏱️ A 23-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
34. 34.⏱️ A video is 175 seconds long. How long is that in minutes and seconds? (a) 2 min 55 s (b) 2 min 25 s (c) 3 min 55 s (d) 1 min 75 s
35. 35.⏱️ A video is 565 seconds long. How long is that in minutes and seconds? (a) 5 min 65 s (b) 9 min 55 s (c) 10 min 25 s (d) 9 min 25 s
36. 36.⏱️ How many seconds is 5 minutes 36 seconds?
37. 37.⏱️ A video has three clips of 19, 13 and 12 seconds. How long is the video (in seconds)?
38. 38.⏱️ Your video must be 120 seconds long. Your clips add up to 16 seconds. How many more seconds of video do you need?
39. 39.⏱️ Your video must be 180 seconds long. Your clips add up to 86 seconds. How many more seconds of video do you need?
40. 40.⏱️ A 40-second clip is sped up to 4× speed. How long does it last now (in seconds)?

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