Topic 4-6 Study

Who was Pascal?

• The chameleon from Tangled

• A German Scientist that studied units and pascals

• A French Scientist that worked with pressure and found a unit

• A British dude that created science stuff

What is the Pa equivalent to?

• Newtons

• N/m2

• nanometers

• 1,000,000

  Newtons

How is pressure distributed in a hydraulic system?

• a pressure exerted on a piston produces an equal increase in pressure on another piston in the system.

• it presses force down on a surface and lets pressure do the work

• in a hydraulic system the fluids press down and makes the thing in the hydraulic syste float or gluide

• 1 and 2

What is Pressure?

• when you push on something and it creates pressure

• push or pull upon an object resulting from the object's interaction with another object

• two-dimensional quantity representing amount or extent of surface

• the perpendicular force per unit area, or the stress at a point within a confined fluid.

What is a Force?

• Pushing on something very hard or pulling on a perpendicular surface pulling on

• a push or pull upon an object resulting from the object's interaction with another object

• quantitative measure of inertia, a fundamental property of all matter

• force that resists the sliding or rolling of one solid object over another

What is an Airbus A340?

• a machine that floats by tiny holes that blow air from the bottom

• a long-range, wide-body passenger airliner

• a bus in the air

• an aircraft propelled by jet engines

How many litres of air does a person breathe each day?

• 11,000 litres

• 20,000 litres

• 800 litres

• 16,000 litres

What are the key differences between a hydraulic system and a pneumatic system?

• Hydraulic systems use fluids to transmit power when pneumatics use gas to transmit power

• Hydraulic systems use liquids like water and oil to transmit power. Where pneumatic systems use air to transmit power

• Hydraulic systems use air to transmit power. Where pneumatic systems use liquids like water and oil to transmit power

• Hydraulic systems use gas to transmit power when pneumatics use fluids to transmit power

How does a Hovercraft work?

• a machine that lets you float and inch off the ground with little holes at the bottom of the craft

• long-range, wide-body passenger airliner

• use blowers to produce a large volume of air below the hull, or air cushion, that is slightly above atmospheric pressure

• a machine that uses propellers that let the craft float

What is a moveable part that controls the flow of a fluid by opening and closing?

• a valve

• an arteria

• veins

• blood vessels