Pascal's Law
About the Lecture
The lecture Pascal's Law by Jared Rovny, PhD is from the course Fluids.
Included Quiz Questions
A machine applies 1,000 N of force to oil in a tube of cross-sectional area of 50 cm². The oil is connected to a movable piston with cross-sectional area of 0.5 m². How much force is applied to the piston?
- 100,000 N
- 1,000,000 N
- 200,000 N
- 1,000 N
- 10,000 N
Water is pouring out a hole in a tank of water. The holes area is 0.5 cm² and its vertical distance from the surface of water in the tank is 2 m. If a person were to use its finger to cover the hole, how much force will be exerted on the finger?
- 1 N
- 10 N
- 0.1 N
- 5 N
- 0.5 N
A barber raises his customer’s chair by applying a force of 150 N to a hydraulic piston of area 0.01 m². The chair is attached to a piston of area 0.1 m². What is the force applied to the larger piston, and the maximum mass that can be lifted? Use Pascal’s law.
- 1500 N, 153 kg
- 1550 N, 150 kg
- 1450 N, 100 kg
- 2350 N, 200 kg
- 150 N, 50 kg
A hydraulic system is used to lift a 3,000 kg vehicle in an auto garage. Piston A of area 0.8 m² in the hydraulic system is used to lift the platform which the vehicle sits on. This piston can be moved up by applying a downward force on piston B of area 0.05 m² in the hydraulic system. What is the minimum force that must be applied to piston B in order to lift the vehicle ?
- 1,875 N
- 12,225 N
- 1,180 N
- 1,225 N
- 1,250 N
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Author of lecture Pascal's Law
Jared Rovny, PhD
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