Beginning of Essay
I have chosen to do my physics report on the internal-combustion engine. I will mention the four-stroke cycle, the components of an engine, the ignition system, the carburetor system and how an engine works. The four-stroke cycle obviously has four strokes, whic ....

Middle of Essay
.... exhaust stroke. This is when the piston moves up and pushes the burnt gas through a one-way valve, which then goes back into the cylinder head and then through the exhaust manifold and exhaust tubes and the leads out of the car. At 2200 RPM the entire four-stroke cycle is completed 18 times per second in each cylinder. The term V8 L6 and V6 refer to the number and configuration of engines cylinders. While the V8 is more popular for hot-rodding and for fast sports cars. The in-line six is common found in older cars that weren't that powerful. Inline fours and V6's are usually used in newer cars (V8, V10 and V12 are also used in newer cars, but ....