P3 Flashcards
1
Q
Density
A
Density is the mass of a given volume of a substance
The density of a substance is determined by the mass of the atoms it is made from and how closely these atoms are packed together.
2
Q
How does state change
A
A change of state can be brought about by changing the
temperature or pressure of a material.
3
Q
Internal energy
A
Internal energy is the energy stored in a system by the atoms and molecules that make up that system.
4
Q
Latent heat
A
Latent heat is the energy needed to change the state of a substance without a change in temperature.
