Hydraulics - Pascals

Who discovered the principle that explains how a small force can lift a heavy car using a hydraulic jack?

• Isaac Newton

• Marie Curie

• Albert Einstein

• Blaise Pascal

What happens to the pressure in a hydraulic system when a force is applied to a piston?

• It decreases

• It is transmitted without loss

• It remains the same

• It increases then decreases

If the radius of the first piston is smaller than the second, how does the force exerted compare?

• Less force on the second piston

• Equal force on both pistons

• More force on the second piston

• No force on the second piston

What is the effect of piston displacement on energy conservation in a hydraulic system?

• Violates the law of conservation

• Increases total energy

• Supports the law of conservation

• No effect on energy conservation

What role do the valves in a hydraulic jack system play?

• Stop the fluid movement entirely

• Decrease the fluid pressure

• Increase the fluid volume

• Direct the fluid in one direction