* Tires: Tires use friction to grip the road and allow the car to move forward, backward, or turn. The tread on the tires provides the friction needed to prevent the car from slipping.
* Engine: The engine uses friction to convert the chemical energy of gasoline into mechanical energy. The pistons move up and down inside the cylinders, creating friction between the piston rings and the cylinder walls. This friction causes the pistons to move, which in turn drives the crankshaft and wheels.
* Transmission: The transmission uses friction to transfer power from the engine to the wheels. The gears in the transmission are made of metal, and they mesh together with a slight amount of friction. This friction is necessary to prevent the gears from slipping and to allow the car to move at different speeds.
* Differentials: Differentials use friction to allow the wheels to turn at different speeds when the car is cornering. The differential is a gear assembly that is located between the rear wheels. The gears in the differential allow the wheels to rotate independently of each other, but they also provide a limited amount of friction to prevent the wheels from spinning too quickly.
