Particles and Units
What are atoms?
Atoms are very tiny particles that are everywhere
Physics?
Physics is the branch of science concerned with the nature and properties of matter and energy
Are the states of water a Physics or a Chemistry study?
Its a Physics study
Melting
is a physical process that results in the phase transition of a substance from a solid to a liquid.
What is an atom made of?
They are made of three particles named neutrons protons and electrons
Chemistry?
Chemistry is the science that studies the composition of the materials and the changes that happend to it
Is when wood burns a Physics or a Chemistry study?
Its a Chemistry study because it alterates the molecular structure of the wood
Sublimation
The transition of a substance directly from a solid state to a gas state.
Define "Kelvin Scale"
a scale of temperature in which absolute zero is zero and kelvins are used as units.
The Kinetic theory?
The Kinetic theory is about the movements of the atoms inside the objetcs when it's cold or hot, etc.
What is the difference between General Properties and Specific Properties
General properties are those common to all matter. Specific properties are the characteristics that differentiate a kind of matter from another.
Changes from liquid to solid
Feezing
Define Boyle-Mriotte Gas Law
Boyle's Law tells us that the volume of gas increases as the pressure decreases.
Nuclear fission?
Nuclear fission is a nuclear reaction or a radioactive decay process in which the nucleus of an atom splits into two or more smaller, lighter nuclei
Discuss "Particles in a liquid substance"
Particles are quite close together and move with random motion throughout the container. Particles move rapidly in all directions but collide with each other more frequently than in gases due to shorter distances between particles.
A phase transition from the liquid phase to vapor.
Vaporization
Define "Gay-Lussac Law of Gas"
Gay-Lussac's law indicates that the volume of a gas is directly proportional to the temperature of the gas
Gravity?
Gravity is a force that pulls every object to itself
Discuss "Particles in a solid body"
A solid's particles are packed closely together. The forces between the particles are strong enough that the particles cannot move freely; they can only vibrate.
The reverse action of evaporation
Condensation