Matter Unit Flashcards
What is the equation for density?
Density = mass / volume
Equation for efficiency?
Efficiency = useful out / total in
Energy transferred?
Energy = powerful x time
What are the changes in state called?
“Physical changes”
What state is steam?
A gas
What is one way you can transfer energy to the particles in a system?
By heating the system
Name five ways particles can change state?
Freezing, melting, boiling, sublimation, condensation
What is internal energy?
It’s energy that is stored inside a system by the particles that make up the system. Internal energy is the total sum of the kinetic and potential energy of all the particles that make up that substance.
How do you tell which substance has the most internal energy?
The most molecules and the fastest moving particles.
