question

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 ______ ___.

answer

Boyle's Law

question

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 ________ ___.

answer

Charles's Law

question

The man credited with showing a clear connection between mechanical energy and heat is _____.

answer

Joule

question

Measured in degrees, the __________ of a substance is directly related to the average kinetic energy of its atoms and molecules.

answer

temperature

question

A fluid's resistance to flow is called its

answer

viscosity

question

The scale that uses 32 degrees as its freezing point for water

answer

Fahrenheit

question

The instrument that measures temperature is called a

answer

Thermometer

question

The scale that uses 0 degrees as its freezing point for water.

answer

Celsius

question

The scale that uses absolute 0 as the coldest temperature possible is

answer

Kelvin

question

the flow of thermal energy form one place to another is called

answer

heat

question

when two objects with different temperatures touch, thermal energy moves form the hotter to the cooler object in the process called

answer

conduction

question

Electromagnetic energy moves in space through the process of

answer

Radiation

question

when thermal energy is carried from one location to another by a fluid its called

answer

convection

question

Some materials rather tahn being good conductors seem to hold thermal energy at bay as

answer

insulators

question

Which of the following is a good conductor of electricity

answer

water

question

which of he following is a good insulator for electricity

answer

rubber

question

Stationary electricity is also called

answer

static

question

Lightning strikes on the earth about (#) times a day

answer

100

question

A device used to protect buildings from lightning is called

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Lightning rod

question

modern charge storing devices are

answer

capacitors

question

electricity that involves continuously moving charges is called

answer

electric current

question

a _________ consists of one or more electromagnetic cells that supply elections released by a chemical reaction

answer

battery

question

Current that flows in one direction through a conductor is called

answer

direct current

question

the path that the current flows is called

answer

electric path

question

we are able to open or close a circuit by opening or closing a gap in current path by using a

answer

switch

question

a device that can change the voltage within portions of a circuit is called a

answer

Resistor

question

photovoltaic devices are also called

answer

solar cells

question

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.

answer

generator

question

resistence is measured in

answer

ohms

question

When loads are connected one after another on the same path it is called a

answer

series circuit

question

Electrical energy is dispensed and billed in units called

answer

Kilowatt hours

question

Loads connected in separate branches of the circuit are called

answer

parallel circuit

question

older homes with original wiring may use these as protective devices

answer

fuses

question

Newer houses use these as protective devices

answer

Circuit breakers

question

The rounded third prong on a standard plug is the ______ device

answer

ground

question

the highest point of a wave is

answer

crest

question

the length of a wave cycle is the

answer

wave length

question

the time it takes for a system to complete one cycle is called its

answer

period

question

Periodic changes that transmit energy from one place to another are called

answer

waves

question

the rate at which cycles repeat is called the

answer

frequency

question

each repeated motion of a period is called a ______ and takes the same amount of time

answer

Cycle

question

the lowest point of a wave is called the

answer

tough

question

a pendulum is at its ____ __________ when it hangs straight down

answer

rest position

question

a single wave cycle or a very short burst of waves is called a

answer

pulse

question

a mass attached to an arm at a pivot point that swings under the influence of gravity is called a

answer

pendulum

question

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

answer

inner ear

question

what part of the ear helps us determine the direction of a sound's source by blocking sounds coming from behind?

answer

outer ear

question

a room/building's effect on sound is called

answer

acoustics

question

_____ was used on boats of the world wars to detect enemy submarines

answer

sonar

question

what part of the ear consists of the eardrum and three bones called the hammer, the anvil, and the stirrup?

answer

middle ear

question

331.4 mi/sec

answer

the speed of sound

question

the process of making sound louder is called

answer

acoustic amplification

question

that which can be defected by our ears is known as

answer

sound

question

multiple of echos of a sound formed when it refelcts off distant surfaces is called

answer

reverberations

question

The response of our ear to the intensity of a sound wave is called

answer

loudness

question

what type of instruments include violins, cells, guitars, and ukeleles?

answer

stringed instruments

question

loudness is measured in units called

answer

decibels

question

the boxlike structure at the top of the trachea is called teh

answer

larynx

question

soundwaves that have frequencies above the range audible to humans are called

answer

ultrasonic

question

when either the sound maker or the sound listener moves relative to the other , the ______ effect goes into action

answer

doppler

question

how high or low an audible tone sounds to the human ear

answer

pitch

question

It has tines that vibrate which set up sound waves in air

answer

tuning fork

question

the large flat muscle that forms the floor of the chest cavity

answer

diaphragm

question

a drum is an example of a __________ instruments

answer

percussion

question

Two flat pieces of mucous membrane tissue stretching across the upper portion of eh larynx are called

answer

vocal cords

question

the human voice has amazing flexibility that we call

answer

range

question

what type of instrument includes the horns such as trumpet, french horn, trombone, and tuba

answer

brass

question

what is used in the medical field to produce a picture of a developing fetus

answer

ultra sound

question

we make judgements on whether a sound is pleasant or not based on it s

answer

quality

question

the term atom comes form the greek word "atomos" which means

answer

indivisible

question

the positively charged particle in the nucleus

answer

proton

question

the negatively charged particle in the nucleus

answer

electron

question

the particle within the nucleus that has no charge is teh

answer

neutron

question

each kind of atom has a distinctive number of protons in its nucleus. this number is called the

answer

atomic number

question

electrons in the outer most energy level are known as the atoms

answer

isotope

question

a region where an electron with certain amount of energy is most likely to be found is called an

answer

energy level

question

electrons in the outermost energy level are known as the atom's

answer

valence electrons

question

the rays and particles emitted by unstable nuclei is nuclear

answer

radiation

question

there are three main kinds of "rays" of nuclear radiation they are

answer

alpha beta gamma

question

one way to attempt to determine the age of certain fossils is by using

answer

carbon 14

question

the splitting of the atom's nucleus is called nuclear

answer

Fission

question

the process of bombarding small nuclei to form larger ones is called nuclear

answer

fusion

question

the number on top of the element in the periodic table is called

answer

the atomic number

question

the element that is used in the lights on broadway is

answer

neon

question

What element is worth alot in its natural state (element, symbol)

answer

gold,Au

question

what is not a member of the noble gas family? -neon -oxygen -helium -hallium

answer

oxygen

question

Potassium (symbol)

answer

K

question

how many elements are there in the periodic table

answer

More than 100

question

which element really doesn't belong in any of the "Families"?

answer

hydrogen

question

C is the symbol for

answer

Calcium

question

All metals except _______ are solids at room temp

answer

mercury

question

Which of the following are radioactive? -radium -Plutonium -Uranium

answer

all

question

which is not a metal? aluminum, argon, mercury, or tin?

answer

argon

question

which is not a gas? tungsten, flourine, oxygen, radon

answer

tungsten

question

the substance that sound moves through is called the

answer

medium

question

which instrument is considered a keyboard instrument? piano, organ, both, or neither

answer

both

question

when two objects with opposite charges approach each other they are

answer

attracted

question

there are two types of cells for batteries

answer

dry and wet

question

electrical current is measured in a unit called the

answer

ampere

question

elements that have properties somewhere between a metal and a nonmetal are

answer

metalloids

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