Chapter 3 Test Study Guide Flashcards
Pascal
The unit for pressure,
1N/m2
Pressure
Force divided by area
Fluid
A material that can easily flow.
Barometer
An instrument that measures atmospheric pressure.
Buoyant Force
Acts in the direction opposite to the force of gravity, so it makes an object feel lighter. (When you go swimming)
Archimedes’ Principle
The connection between the weight of a fluid displaced by an object and the buoyant force acting on it
Density
Mass per unit volume
Pascal’s Principle
When force is applied to a confined fluid, the change in pressure is transmitted equally to all parts of the fluid
Hydraulic System
Multiplies force by applying the force to a small surface area. The increased pressure is transmitted to another part of the fluid and pushes on a larger surface area.
Bernoulli’s Principle
The faster a fluid moves, the less pressure it exerts
Lift
An upward force
