What is the function of brake pads in a vehicle?

Brake pads play a crucial role in a vehicle's braking system. Their primary function is to create friction against the brake rotor when the driver presses the brake pedal. This friction is what slows down and eventually stops the vehicle. As the brake pads press against the rotating rotor, the kinetic energy of the moving vehicle is converted into thermal energy, which dissipates as heat.

The effectiveness of brake pads is vital for safe vehicle operation, as they directly influence braking distance and the overall responsiveness of the brake system. High-quality brake pads are designed to withstand high temperatures and wear, ensuring reliable stopping power under various driving conditions. The other choices do not accurately reflect the function of brake pads; they refer to aspects such as tire pressure maintenance, steering adjustments, or performance enhancement, which are unrelated to the braking process.