A headlamp is a lamp attached to the front of a vehicle to illuminate the road ahead. Headlamps are also
often called headlights, but in the most precise usage, headlamp is the term for the device itself and
headlight is the term for the beam of light produced and distributed by the device.
As we have said, continuing to drive with worn brake pads is dangerous, and you should never let your
pads get to the point where you can hear a harsh, metallic grinding noise. The grinding noise is the
sound of metal on metal, and indicates brake pads which have been completely worn down.
A disc brake is a type of brake that uses the calipers to squeeze pairs of pads against a disc or a "rotor"
to create friction. Hydraulically actuated disc brakes are the most commonly used form of brake for
motor vehicles, but the principles of a disc brake are applicable to almost any rotating shaft.
A car seat is the seat used in automobiles. Most car seats are made from inexpensive but durable material in
order to withstand prolonged use. The most common material is polyester.