Physics three Flashcards
What is density
Density is how much mass a substance contains compare to its volume solids are usually dense because the particles are closely packed
What is state of matter
States of matter is the way in which the particles are arranged solid liquid or gas
What is change of state
When a substance changes from one state of matter to another example melting is the change from a solid to liquid energy changes the state not the temperature
What is physical change
Physical change is a change that can be reversed to cover the original material example change of state
What does chemical change mean
Chemical change is a Change that creates new products it cannot be revered example chemical reaction
What is internal energy
Internal energy is the energy stored inside the system by the particles atoms and molecules that make up the system
What is kinetic energy
Energy stored within moving objects example particles
What is potential energy
Energy stored in particles because of their position the further apart particles are the greater the potential energy
What is specific heat capacity
The specific heat capacity of a substance is the amount of energy required to raise the temperature of 1 kg of a substance by 1°C
What is temperature
Temperature is the average kinetic energy of particles
What is specific latent heat
Specific latent heat is the amount of energy required to change the state of 1 kg of the substance with no change in temperature
What is latent heat of fusion
Energy required to change date from solid to liquid
What is gas pressure
The force exerted By gases on services as the particles collide with it as temperature increases gas pressure increases if the volume stays constant
Explain what is meant by the term carbon capture and storage
Could be used to stop carbon dioxide emissions into the atmosphere from fossil fuel power stations
The total current in the a parallel circuit is
A1+A2
