(ut4 ch12) - Properties of Matter vocab

physical property

characteristics that can be observed directly

chemical property

characteristics that can only be observed when one substance changes into a different one

physical change

change that does not result in a new substance being formed

chemical change

change that transforms one substance into a different substance

thermal expansion

the tendency of the atoms or molecules in a substance (solid, liquid, gas) to take up more space as the temperature increases

fluid

any matter that flows when force is applied

Bernoulli's Principle

a relationship that describes energy conversation in fluid

Pascal's Principle

the pressure applied to an incompressible fluid in a closed container is transmitted in all parts of the fluid

viscosity

a measure of a fluids resistance to flow

buoyancy

the measure of upward force that a fluid exerts on an object that is submerged

Archimedes' Principle

states that the buoyant force is equal to the weight of the fluid displaced by an object

pressure

the amount of force exerted per unit of area

ductility

the ability to bend without breaking

malleability

the ability of a solid to be pounded into thin sheets