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Physics Test ch 17?

Question	Answer
The melting point is the same temperature as the freezing point for a substance	True.
In calculations using Charles’s law, temperature is expressed on the Celsius scale.	False, Kelvin.
Increasing the temperature decreases the fluid’s viscosity.	True.
When evaporating a liquid, you add heat until the liquid reaches a temperature at which it changes to bubbles of gas below its surface.	False. Boiling.
A gas-like mixture with no definite volume or shape that is made up of positively and negatively charged particles is a ___.	Plasma.
The amount of energy needed to change a material from solid to liquid is called heat of ___.	Fusion.
Hydraulic machines work by applying ___.	Pascal's principle.
Matter that has a definite volume and shape is a ___.	Solid.
Compared to most substances, water is unusual because ise ___ when it goes from a solid to a liquid state.	Expands.
Whether an object will sink or float in a fluid is determined by ___.	Archemedes’ principle.
The theoretical point at which all molecular motion stops is called ___.	Absolute zero.
The particles that make up a solid move ___ than do the particles that make up a gas.	More slowly.
Matter with no definite volume and no definite shape is a ___.	Gas.
As a sample of matter is heated, its particles ___.	Move more quickly.
According to ___, the volume of a gas increases with increasing temperature, as long as pressure does not change.	Charles’s law.
The amount of energy needed to change a material from a liquid to a gas is called the heat of ___.	Vaporization.
Most matter ___ when heated.	Expands.
Matter that has a definite volume but no definite shape is a ___.	Liquid.
Matter in which atoms are tightly held in place is a ___.	Solid.
The idea that matter is made up of constant moving particles is the ___.	Kinetic theory of matter.
According to ___, pressure applied to a fluid is transmitted unchanged throughout that fluid.	Pascal's principle.
Bernoulli’s principle explains why ___.	Planes fly.
According to ___, if you decrease the volume of a container of gas and hold the temperature constant, the pressure of the gas will increase.	Boyle's law.
According to ___, as the velocity of a fluid increases, the pressure exerted by the fluid decreases.	Bernoulli's Principle.
Increasing ___ raises the boiling point of a liquid.	Pressure.
The most common state of matter in the universe is ___.	Plasma.
A fluid’s resistance to flow is called ___.	Viscosity.

Created by: AmberGenson

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