The law stating that the volume of a fixed quantity of a confined gas is inversely proportional to its pressure wen its temperature is held constant is called ______ ___.
The law stating that the volume of a fixed quantity of a confined gas is directly proportional to its absolute temperature when its pressure is held constant is called ________ ___.
The man credited with showing a clear connection between mechanical energy and heat is _____.
Measured in degrees, the __________ of a substance is directly related to the average kinetic energy of its atoms and molecules.
A fluid’s resistance to flow is called its
The scale that uses 32 degrees as its freezing point for water
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The instrument that measures temperature is called a
The scale that uses 0 degrees as its freezing point for water.
The scale that uses absolute 0 as the coldest temperature possible is
the flow of thermal energy form one place to another is called
when two objects with different temperatures touch, thermal energy moves form the hotter to the cooler object in the process called
Electromagnetic energy moves in space through the process of
when thermal energy is carried from one location to another by a fluid its called
Some materials rather tahn being good conductors seem to hold thermal energy at bay as
Which of the following is a good conductor of electricity
which of he following is a good insulator for electricity
Stationary electricity is also called
Lightning strikes on the earth about (#) times a day
A device used to protect buildings from lightning is called
modern charge storing devices are
electricity that involves continuously moving charges is called
a _________ consists of one or more electromagnetic cells that supply elections released by a chemical reaction
Current that flows in one direction through a conductor is called
the path that the current flows is called
we are able to open or close a circuit by opening or closing a gap in current path by using a
a device that can change the voltage within portions of a circuit is called a
photovoltaic devices are also called
a _________ is basically one or more coils of wire rotated in a magnetic field by some form of prime mover such as a motor or turbine powered by steam, water, or wind.
resistence is measured in
When loads are connected one after another on the same path it is called a
Electrical energy is dispensed and billed in units called
Loads connected in separate branches of the circuit are called
older homes with original wiring may use these as protective devices
Newer houses use these as protective devices
The rounded third prong on a standard plug is the ______ device
the highest point of a wave is
the length of a wave cycle is the
the time it takes for a system to complete one cycle is called its
Periodic changes that transmit energy from one place to another are called
the rate at which cycles repeat is called the
each repeated motion of a period is called a ______ and takes the same amount of time
the lowest point of a wave is called the
a pendulum is at its ____ __________ when it hangs straight down
a single wave cycle or a very short burst of waves is called a
a mass attached to an arm at a pivot point that swings under the influence of gravity is called a
what part of the ear is the mos intricate and least understood part of the ear? It contains two fluid filled organs: the semi-circular canals and the cochlea
what part of the ear helps us determine the direction of a sound’s source by blocking sounds coming from behind?
a room/building’s effect on sound is called
_____ was used on boats of the world wars to detect enemy submarines
what part of the ear consists of the eardrum and three bones called the hammer, the anvil, and the stirrup?
the speed of sound
the process of making sound louder is called
that which can be defected by our ears is known as
multiple of echos of a sound formed when it refelcts off distant surfaces is called
The response of our ear to the intensity of a sound wave is called
what type of instruments include violins, cells, guitars, and ukeleles?
loudness is measured in units called
the boxlike structure at the top of the trachea is called teh
soundwaves that have frequencies above the range audible to humans are called
when either the sound maker or the sound listener moves relative to the other , the ______ effect goes into action
how high or low an audible tone sounds to the human ear
It has tines that vibrate which set up sound waves in air
the large flat muscle that forms the floor of the chest cavity
a drum is an example of a __________ instruments
Two flat pieces of mucous membrane tissue stretching across the upper portion of eh larynx are called
the human voice has amazing flexibility that we call
what type of instrument includes the horns such as trumpet, french horn, trombone, and tuba
what is used in the medical field to produce a picture of a developing fetus
we make judgements on whether a sound is pleasant or not based on it s
the term atom comes form the greek word “atomos” which means
the positively charged particle in the nucleus
the negatively charged particle in the nucleus
the particle within the nucleus that has no charge is teh
each kind of atom has a distinctive number of protons in its nucleus. this number is called the
electrons in the outer most energy level are known as the atoms
a region where an electron with certain amount of energy is most likely to be found is called an
electrons in the outermost energy level are known as the atom’s
the rays and particles emitted by unstable nuclei is nuclear
alpha beta gamma
there are three main kinds of “rays” of nuclear radiation they are
one way to attempt to determine the age of certain fossils is by using
the splitting of the atom’s nucleus is called nuclear
the process of bombarding small nuclei to form larger ones is called nuclear
the atomic number
the number on top of the element in the periodic table is called
the element that is used in the lights on broadway is
What element is worth alot in its natural state (element, symbol)
what is not a member of the noble gas family?
More than 100
how many elements are there in the periodic table
which element really doesn’t belong in any of the “Families”?
C is the symbol for
All metals except _______ are solids at room temp
Which of the following are radioactive?
which is not a metal? aluminum, argon, mercury, or tin?
which is not a gas? tungsten, flourine, oxygen, radon
the substance that sound moves through is called the
which instrument is considered a keyboard instrument? piano, organ, both, or neither
when two objects with opposite charges approach each other they are
dry and wet
there are two types of cells for batteries
electrical current is measured in a unit called the
elements that have properties somewhere between a metal and a nonmetal are