Particles And Pressure (9) Flashcards
The process of turning from a solid to a liquid is called ____________
Melting
The process of turning from a liquid to a gas is called ______________
Evaporating
The process of turning from a liquid to a solid is called ____________
Freezing
The process of turning form a gas to a liquid is called ______________
Condensing
Is energy given off or taken in as a liquid turns to a solid
Given off
Is energy given off or taken in as a solid turns to a liquid
Taken in
Is energy given off or taken in as a gas turns to a liquid
Given off
Is energy given off or taken in as a liquid turns to a gas
Taken in
Is energy given off or taken in as a solid turns to a gas
Taken in
Equation for pressure
Pressure = force ÷ area
When volume is reduced, pressure ____________
Increases
Pressure is measured in _____ or _____
Pressure is measured in [N/M2] or in pascals [Pa]
What is Brownian Motion
The evidence of particle motion in gases
If smoke particles are in a small container then what happens
Loads of little air particles hit them and knock them about
What is diffusion
The random movement of particles from an area of high concentration to an area of low concentration
Air particles move _____________
Randomly
What does high concentration mean when talking about diffusion
High concentration is where loads of particles a packed together.
Solid particles are tightly packed and _____ vibrate
Solid particles DO vibrate
True or false
Gas particles can be compressed
True. Gas particles can be compressed because their particles have lots of space between them.
Solids and ______ are incompressible
Solids and LIQUIDS are incompressible
