matter and energy johnathan Flashcards
(27 cards)
What is a liquid?
Change shape, not volume.
What is solid?
Have a definite shape and volume.
What is a gas?
Free to spread in all directions.
What is plasma?
Starts at gas and becomes ionized and is also a state of matter.
What is energy?
Capacity to do work.
What is thermal energy?
Kinetic energy of a substances atoms.
What is evaporation?
The change from a liquid to a gas.
What is sublimation?
When a solid changes straight to gas or when gas changes straight to solid.
What is condensation?
The change from a gas to a liquid.
What is a crystalline solid?
Have a orderly arrangement of atoms or molecules.
What is Amorphous solid?
No particular order of atoms or molecules.
What is surface tension?
The force acting on the particles at the surface of the liquid that causes a liquid.
What is kinetic energy?
Particles in motion.
What is heat?
Causes temperature of a substance to change.
What is endothermic change?
Changes, such as melting, that requires energy.
What is exothermic change?
When energy is released from the substance is it changes state witch makes freezing.
What are fluids?
Can be a gas or liquid and its a no solid state.
What is buoyant force?
Upward force of a floating object.
What us pressure?
The amount of force exerted per unit area.
What is Archimedes’ principle?
States the buoyant force on a object In a fluid.
What is Pascal?
Si unit for pressure.
What is pascal principle?
States the fluid in the equilibrium contained in verbal exerts.
What is viscosity?
Resistance of a gas or liquid.
What is bernoulli’s principle?
States the speed of a moving fluid increases.
