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Physical Ch 3: BL
Beaver Local 3
Question | Answer |
---|---|
What theory states that atoms and molecules move FASTER as the temperature INCREASES? | Kinetic Theory of Matter |
What theory states that: at the same temperature more massive particles move SLOWER than massive ones? | Kinetic Theory of Matter |
How is the state or physical form of a substance partly determined? | By how the substance particles move |
by determining whether the shape and volume are definite or variable, you can classifymatter into these three states. | liquid, solid, gas. |
what state of matter have a definite shape and volume? | solid |
the state of matter that changes shape but not volume is called what? | liquid |
this state of matter changes both shape and volume. | gas |
these two states of matter are also known as fluids. | liquids and gases |
the most common state of matter that does not have a definite shape or volume. | plasma |
these are found in lightning, fire and the arora borealis. | natural plasmas |
the ability to change or move matter or to do work. | energy |
because particles are in motion, they have this | kinetic energy |
a measure of the average kinetic energyof the particles in an object | temperature |
the total kinetic energy of a substances atoms thatdepends on particle speed and number of particles | thermal energy |
what does not change during the change of state? | the identity of a substance |
what does change during the change of the state? | the energy of a substance |
some changes of state require this. | energy |
the change of a sustance from a liquid to gas | evaporation |
the process that changes solids directly into gas | sublimination |
the temperature at which a liquid boils | boiling point |
the temperature at which a substance changes from solid to liquid, which also depends on pressure | melting point |
the change of state from a gas to liquid | condensation |
the temperature at which a liquid changes into a solid | freezing point |
the temperature at which gas becomes a liquid | condensation point |
this is constant during the change of state | temperature |
these two things cannot be created or destroyed in the fundamental laws of physical science | mass or energy |
the law where mass cannot be created or destroyed | law of conservation of mass |
the law where energy cannot be created or destroyed | law of conservation of energy |
the amount of force exerted per unit area of a surface | pressure |
the SI unit for pressure and is equal to the the fforce of 1N exerted over an area of 1 m^2 | pascal |
the upward force that keeps an object immersed in or floating on a liquid | boyant force |
all of these exert an upward boyant force on matter | fluids |
the princilple that says that the boyant force on an object in a fluid is an upward force equal to the weight of the fluid that the object displaces | Archimedes' principle |
the principle that states that a change in pressure at any point in an enclosed fluid will will be transmitted equally to all parts of the fluid | Pascals' principle |
how fast do fluids move through small areas compared to large areas | faster |
the resistance of a gas or liquid to flow | vicosity |
the princilple that states that as moving fluid increases, the pressure of the moving fluid decreases | Bernoullis' principle |
this state of matter expands to fill its container and have low densities | gas |
the laws that state the mathematical relationships between the volume temperature, pressure,and quantity of gas | gas laws |
the law that says when pressure increases, volume decreases and visa versa | Boyles' law |
the law that states that the pressure of gas increases as the temperature increases, if the volume of the gas does not change and the pressure decreases as the temperature decreases. | Gay Lussac's law |
the law that says; for a fixed amount of gas at a constant pressure, the volume of the gas increases as the gas's temperature increases. likewise, the volume of the gas decreases as the gas's temperature decreases | Charle's law |