Video Editing Worksheet: Video Length

Animation and design lesson 21: Video length sums · Set 148 · 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 64-second clip is sped up to 4× speed. How long does it last now (in seconds)?
2. 2.⏱️ A video has three clips of 19, 10 and 39 seconds. How long is the video (in seconds)?
3. 3.⏱️ A video has three clips of 29, 9 and 45 seconds. How long is the video (in seconds)?
4. 4.⏱️ A video is 160 seconds long. How long is that in minutes and seconds? (a) 3 min 40 s (b) 2 min 40 s (c) 1 min 60 s (d) 2 min 10 s
5. 5.⏱️ How many seconds is 5 minutes 46 seconds?
6. 6.⏱️ Speeding a clip up to 2× makes it … (a) the same length (b) silent (c) twice as long (d) half as long
7. 7.⏱️ A 22-second clip is sped up to 2× speed. How long does it last now (in seconds)?
8. 8.⏱️ Your video must be 180 seconds long. Your clips add up to 65 seconds. How many more seconds of video do you need?
9. 9.⏱️ A video has three clips of 18, 58 and 48 seconds. How long is the video (in seconds)?
10. 10.⏱️ A video has three clips of 9, 44 and 57 seconds. How long is the video (in seconds)?
11. 11.⏱️ Your video must be 120 seconds long. Your clips add up to 42 seconds. How many more seconds of video do you need?
12. 12.⏱️ Your video must be 120 seconds long. Your clips add up to 33 seconds. How many more seconds of video do you need?
13. 13.⏱️ A video has three clips of 44, 59 and 29 seconds. How long is the video (in seconds)?
14. 14.⏱️ A 4-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
15. 15.⏱️ Your video must be 180 seconds long. Your clips add up to 34 seconds. How many more seconds of video do you need?
16. 16.⏱️ A 72-second clip is sped up to 2× speed. How long does it last now (in seconds)?
17. 17.⏱️ How many seconds is 1 minute 18 seconds?
18. 18.⏱️ How many seconds is 9 minutes 15 seconds?
19. 19.⏱️ How many seconds are in 1 minute? (a) 100 (b) 10 (c) 30 (d) 60
20. 20.⏱️ How many seconds is 5 minutes 41 seconds?
21. 21.⏱️ A 13-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
22. 22.⏱️ A 105-second clip is sped up to 3× speed. How long does it last now (in seconds)?
23. 23.⏱️ A video has three clips of 45, 36 and 18 seconds. How long is the video (in seconds)?
24. 24.⏱️ How many seconds is 9 minutes 12 seconds?
25. 25.⏱️ A 10-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
26. 26.⏱️ A video has three clips of 10, 30 and 45 seconds. How long is the video (in seconds)?
27. 27.⏱️ How many seconds is 9 minutes 59 seconds?
28. 28.⏱️ A video is 415 seconds long. How long is that in minutes and seconds? (a) 6 min 25 s (b) 6 min 55 s (c) 4 min 15 s (d) 7 min 55 s
29. 29.⏱️ A video has three clips of 57, 54 and 37 seconds. How long is the video (in seconds)?
30. 30.⏱️ A video has three clips of 53, 10 and 53 seconds. How long is the video (in seconds)?
31. 31.⏱️ Your video must be 120 seconds long. Your clips add up to 21 seconds. How many more seconds of video do you need?
32. 32.⏱️ A 15-second clip is sped up to 3× speed. How long does it last now (in seconds)?
33. 33.⏱️ A video has three clips of 33, 51 and 50 seconds. How long is the video (in seconds)?
34. 34.⏱️ 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
35. 35.⏱️ A video is 140 seconds long. How long is that in minutes and seconds? (a) 3 min 20 s (b) 2 min 20 s (c) 2 min 50 s (d) 1 min 40 s
36. 36.⏱️ How many seconds is 1 minute 12 seconds?
37. 37.⏱️ Your video must be 60 seconds long. Your clips add up to 44 seconds. How many more seconds of video do you need?
38. 38.⏱️ A 26-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
39. 39.⏱️ An 11-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
40. 40.⏱️ A video has three clips of 42, 16 and 47 seconds. How long is the video (in seconds)?

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