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CBS SCIENCE EXAM CH 2
Terms in this set (46)
A solid is a state of matter that has what?
a definite volume and definite shape
the resistance of a liquid to flowing is its what
which state of matter undergoes changes in volume most easily?
in which state of matter are particles packed tightly together in fixed positions?
particles of a liquid are what?
free to move within a container but remain in close contact with one another.
in which state of matter do the particles spread apart and fill all the space available to them?
the amount of space that a gas takes up is its what?
the force of outward push of a gas divided by the area of the walls of the container is the gas's what?
according to Boyle's law, when the pressure of a gas increases at constant temperature, its volume does what?
the greater the speed of gas particles in a container the what?
greater the pressure
when the temperature of a gas decreases at constant volume what happens?
the pressure decreases
on a long trip, a truck's tires can get very hot causing what?
their pressure to increase
according to Charle's law, when the temperature of a gas increases at constant pressure what else happens?
the volume increases
when an inflated balloon is exposed to cold air what happens?
the volume of the balloon decreases
when a substance changes from a solid to a gas without passing through a liquid state, the change is described as what?
what is vaporization?
when a liquid becomes a gas.
during the time it takes for an entire sample of a substance to change from a solid to a liquid the temperature of the substance will do what?
water boils at a lower temperature at higher altitudes because of what?
which process involves a gas changing into a liquid?
the process of condensation
the energy a substance has from the movement of its particles is called what?
thermal energy always flows from what?
A Warmer substance to a cooler substance
in which state of matter would a substance have the least thermal energy?
ice melts as a result of thermal energy flowing from what
the surroundings to the ice.
if a gas is an expandable container is heated, the volume of the gas will what?
when a graph of two variable is a straight line passing through the (0,0) point, the vairables are what?
what is the correct metric unit for pressure?
the name of the process by which a gas turns directly into a solid is called what?
rubber and glass are examples of what type of solid?
The constant in Boyle's law is what?
what is the most common state of matter in the universe?
liquids with high viscosity flow how
what is vaporization
the change from liquid water into water vapor
How does ice cool objects
absorbing thermal energy of the object
the boiling point of a liquid is lower in high altitudes or low altitudes
high altitudes such as in the mountains
the energy from the movement of particles is measured how?
by the temperature of a substance
a liquid's volume does not change regarless of what?
the shape of the container
boyles law states the pressure and volume
thermal energy always flows from a warmer substance to what
a cooler substance
water freezes and melts at what degree celcius
0 degree C.
can water vapor be seen in fog and steam
Does Amorphous solids have a melting point
the constant in Guy-Lussac's law is what
what are the 4 states of matter?
solid, liquid, gases, & plasma
why does a balloon eventually pop when the air inside it continues to be heated?
as the temperature increases the pressure increases when the pressure increases the volume increases which will eventually pop the balloon.
why does dry ice keep materials near it cold and dry?
dry ice cannot melt and will not become a liquid. it changes into a gas. As it changes it absorbs thermal energy and can keep materials cold and dry.
Boyles law states that pressure and temperature varies inversely
This set is often in folders with...
CBS SCIENCE EXAM CH. 3
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