Understanding Hydraulic Lifts

What is Pascal's Principle and how does it apply to hydraulic systems?

• Pascal's Principle only applies to open systems and not to confined fluids.

• Hydraulic systems operate by using gas instead of liquid to transmit force.

• Pascal's Principle is the principle that pressure applied to a confined fluid is transmitted equally in all directions, and it applies to hydraulic systems by allowing a small input force to generate a larger output force.

• Pascal's Principle states that pressure in a fluid decreases with depth.

Explain the basic components of a hydraulic lift system.

• Electric motor and gears

• The basic components of a hydraulic lift system are a hydraulic fluid reservoir, a pump, hydraulic cylinders, and control valves.

• Mechanical levers and pulleys

• Pneumatic tubes and valves

How does the relationship between force and area affect the operation of a hydraulic lift?

• A larger area always requires a larger force to lift any load.

• Force and area have no impact on the efficiency of a hydraulic lift.

• The relationship between force and area allows a small force applied on a small area to lift a larger load on a larger area in a hydraulic lift.

• A hydraulic lift operates solely based on the weight of the load.

List three applications of hydraulic lifts in everyday life.

• Water fountains

• Bicycle pumps

• 1) Elevators, 2) Car repair lifts, 3) Loading dock lifts

• Air conditioning units

If a small piston with an area of 2 cm² exerts a force of 50 N, what is the pressure applied?

• 300000 Pa

• 200000 Pa

• 150000 Pa

• 250000 Pa

Calculate the force exerted by a larger piston with an area of 100 cm² if the pressure is 25 N/cm².

• 1250 N

• 1000 N

• 2500 N

• 500 N