All fluids exert pressure like the air inside a tire. The particles of fluids are constantly moving in all directions at random. As the particles move, they keep bumping into each other and into anything else in their path. These collisions cause pressure, and the pressure is exerted equally in all directions. When particles are crowded together in one part of an enclosed space, such as the air particles first entering a tire, they quickly spread out to fill all the available space. That’s because particles of fluids always move from an area of higher pressure to an area of lower pressure. This explains why air entering a tire through a tiny opening quickly fills the entire tire.
Beth was finally done making spaghetti sauce. Now she just need to put it all in jars. Beth placed a funnel on to of the first jar and began carefully pouring sauce into the funnel. She watched as the sauce filled the funnel and began running through the narrow opening and into the jar.
When beth starts pouring is the pressure less in the sauce pan or the funnel?