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Combo with Chapter 14 Test and 1 other
Terms in this set (32)
Ability of a fluid-liquid or gas- to exert an upward force on an object immersed in it
buoyant force on an object is equal to the weight of the fluid displaced by the object
Compare buoyancy and weight.
The less something weighs, the more it floats.. Like wood. Wood floats and steel sinks
Compare density and buoyancy.
An object floats if its density is less than that of the fluid
Force exerted per unit area
What is Pascal's Principle?
pressure in=pressure out
Moving heavy loads in accordance with Pascal's Principle///
What is Bernoulli's Principle?
Fluid velocity increases when the flow of the fluid is restricted. Pressure the fluid exerts is decreased
Resistance of a fluid to flowing.
If you decrease the volume of a container of gas and hold the temperature constant, the pressure from the gas will increase.
Explain Boyle's law in accordance with volume and pressure.
An increase in the volume of the container causes the pressure to drop
Boyle's law compares what two things?
volume and pressure
Charles' Law compares what two things?
Temperature and Volume
Volume of a gas increases with increasing temperature as long as pressure on gas does not change
The theoretical fifth state of matter
When the temperature is at absolute 0 degrees Kelvin and the volume is zero
Theoretical fifth state of matter
Explanation of how the particles in gases behave
What is the kinetic theory?
1. All matter is composed of tiny particles
2. These particles are in constant random motion
3. The particles collide with each other and with the walls of any container in which they are held
4. The amount of energy that the particles lost from these collisions
In this state, there is no fixed volume or shape. The particles spread out so they fill the container they are in
In this state, particles don't move as quickly as gases do. They have less kinetic energy and less ability to overcome their attraction to one another. They flow past each other and their particles cling together to have a fixed volume
In this state, there is a definite shape and volume with closely packed particles that are still in motion but have hardly any kinetic energy and do not overcome attraction to one another
Particles in a solid's thermal energy causes them to vibrate.
term used to explain how hot or cold an object is. Represent average kinetic energy of particles that make up the substance
temperature at which a solid becomes a liquid
energy required to change a substance from a solid to liquid at its melting poitn
HEat of fusion
temperature at which the pressure of the vapor in the liquid is equal to the external pressure acting on the surface of the liquid
amount of energy required for the liquid at its boiling point to become a gas
Heat of vaporization
process of a solid changing directly to a gas without forming a liquid
matter that has enough energy to overcome not just the attractive forces between its particles but also the attractive forces within its atoms
increase in the size of a substance when the temperature is increased
solids that don't have specific melting points, but soften and gradually turn into a liquid over a temperature range
highly responsive temperature changes and electrical fields
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