Why does thunder always come after lightning? Have you ever counted the number of seconds between lightning and thunder to see how far away a storm was? If you have, then you were doing a linear-relationship math problem using time and the speed of sound!
Why It Matters
See for yourself: http://www.lightningsafety.noaa.gov/distance.htm
Learn more about lightning, thunder, and the speed of sound with the following link. Then consider the questions below.
- Is the speed of sound always the same?
- What kind of relationship do atmospheric temperature and the speed of sound have?