Pascal's Principle Review

who was the French mathematician in the 1600's developed a principle to explain how pressure is transmitted in a fluid?

Blaise Pascal

What did Pascal discover about pressure throughout enclosed and confined fluids?

Pascal discovered that pressure increases by the same amount through an enclosed or confined fluid

What happens when a force is applied to a confined fluid?

The change in pressure is transmitted equally to all parts of the fluid.

what happens in the brake system of a car from the time a driver steps on the brake pedal to the time the car stops

The driver exerts a force on the brake pedal, which causes the brake pedal piston to exert increased pressure on the brake fluid. The confined brake fluid transmits the increased pressure on pistons that push on the brake pads in the car's wheels. When the brake pads rub against the brake disks, the force of friction between pads and disks slows the car's wheels.

how does a hydraulic system multiply?

by applying the force to a small surface area. the increase in pressure is then transmitted to another part of the confined fluid, which pushes on a larger surface area.

How is a hydraulic device operated?

by the movement and force of a fluid

What happens in system A?

force is applied to the piston, force is transmitted through the fluid to the other piston, and each piston has an equal area

what happens in system B?

force on the larger piston is multiplied. the socone piston has a larer area than the first one. the is a small force pushing down on the small psiton and a larger force pushing up

What does fluid exert on any surface it touches?

pressure

What are hydraulic lift systems mainly used for?

raising cars and heavy machinery

pascals principle

the rule that when force is applied to a confined fluid, the increase in pressure is transmitted equally to all parts of the fluid

What is Pascals name used for?

the unit of pressure

What happens when you squeeze a water bottle?

the water pressure increases everywhere in the bottle

hydraulic system

uses fluids to transmit pressure in a confined fluid.

how do hydraulic brakes work?

when the brake pedal is pushed, a small piston is pushed. the piston exerts pressure on the brake fluid. the increased pressure is transmitted through the fluid in the brake lines to larger pistons within the wheels of the car. each of these pistons pushes on a brake pad. the brake pads rub against the brake disc, and the wheels motion is slowed down by the forceof friction. becasue the brake system multiples force, a person can stop a large car with only a light push on the brake pedal