Gas
Define Gas state
Physical state where charged particles have high speed motion; expand to full container
Define Liquid state
Physical state where particles slide past each other; take shape of container
Physical state where particles vibrate in place, tightly packed
Define Plasma state
Physical state where charged particles move rapidly, height energy
What is needed to change the phase of matter?
Energy (heat) added or removed
No gas escapes or enters? True or false
True
characterized by having a definite volume but has an?
Indefinite shape
What happens to the particles in a solid when the temperature increases?
They vibrate faster
What natural phenomenon on Earth is an example of plasma?
Lightning
What is the temperature called when a liquid turns to a solid?
Freezing point
What is the process called when a liquid turns into a gas at the surface?
Evaporation
What is the process called when a solid turns into a liquid?
Melting
What is it called when a solid turns directly into gas?
Sublimation
What must happen to a gas for it to become plasma?
It must gain a large amount of energy
When a substance moves from liquid state to a gaseous state, the particles must?
Gain thermal energy and overcome forces
What is the term for a gas turning directly into a solid, skipping the liquid phase?
Deposition
The force that makes the surface of a liquid act like a stretched skin?
Surface tension
What type of solid has atoms arranged in an organized repeating pattern?
Crystalline solid
What happens to electrons in atoms when plasma forms?
Electrons are stripped from atoms
According to the kinetic Molecular Theory, how does the motion of particles in a solid compare to the motion of particles in a gas?
Particles in a solid vibrate in fixed position, while particles in a gas move rapidly
How do pressure and volume affect gases in a closed system?
when pressure increase, volume decrease, and when pressure decrease, volume increases
Why do some objects float while others sink in a liquid?
This relates to density and how heavy the object is
What force holds particles tightly together in a solid?
intermolecular forces (or intermolecular attractions), which include ionic bonds and metallic bonds etc
What happens to a gas when it is heated to extremely high temperatures so that electrons are stripped from atoms, forming plasma?
It becomes ionized and forms plasma
How and why does tire pressure change with weather?
Because temperature affects the air inside the tire. The tire when it is cold, the air contracts and pressure decreases, when it is hot, the air expands and pressure increases