sec 1 Alyssa Flashcards
What is a liquid
They keep volume but change shape
What is a solid
It takes shape and has a definite volume
What is gas
Gas spreads wherever in all directions
What is plasma
No definite shape particles are broken apart
What is energy
Ability to do work
What is thermal energy
Kinetic energy of a objects atoms
What is evaporation
When a liquid changes into a gas
What is sublimation
When a solid changes into a gas
What is condensation
When gas changes to a liquid
What is a crystalline solid
Solid that is made of crystals
What is a amorphous solid
A solid whose particles aren’t arranged in order
What is surface tension
It allows objects denser than water to float
Kinetic energy
A moving objects energy
What is heat
Energy moved between two things that have different temperatures
What is endothermic change
A chemical reaction that has to have heat involved
What is exothermic change
Chemical reaction when heat is released
Fluid
Not a solid atoms are free to move and act as a gas or liquid
Buoyant force
Upward force on a object in floating on a fluid
Pressure
Force exerted on a object
Archimedes principle
States that the force on a object in a fluid is a force equal to the volume and weight of the fluid
Pascal (Pa)
Si unit for pressure
Pascals principle
States that fluid contains in a vessel that puts pressure of equality intensity in all directions
Viscosity
Resistance of liquid or gas to flow
Bernoulli’s principle
As the fluids velocity increases the pressure is to be said that is decreases
Boyles law
States that for a gas to stay a constant pressure the volume increases and the pressure decreases
Charles’s law
States that gas at a constant pressure the volume increase and te pasture decreases
Gay-Lussac’s law
The pressure the of the gas increases the temperature increases if the volume of the gas doesn’t change
