Phy Sci Final - Semester 2 - Fill In The Blank

Front 1

The ______ is the material through which a wave travels

Back 1

medium

Front 2

when a wave is a disturbance in the matter which makes up something, the wave is a ____________

Back 2

mechanical wave

Front 3

a __________ is a repeating disturbance that transfers energy through matter or space

Back 3

wave

Front 4

waves bending as they pass from one material into another is called ___________

Back 4

refraction

Front 5

an electromagnetic wave which acts as a particle is a ______

Back 5

photon

Front 6

the study of sound is ______

Back 6

acoustics

Front 7

the ___________ of a water wave is a measure of the energy it carries

Back 7

amplitude

Front 8

particles of the medium vibrate in the same direction the wave travels in a ______________________

Back 8

compressional wave

Front 9

the process of detecting objects using the sound waves they reflect is called ___________-

Back 9

echolocation

Front 10

______________occurs when a wave bounces off an object

Back 10

reflection

Front 11

water waves bending around a dock is an example of _____________

Back 11

diffraction

Front 12

sound waves with frequencies too low to hear are _________-

Back 12

infrasonic

Front 13

vibrations of the earth's crust made up of both transverse and compressional waves are ____________

Back 13

seismic waves

Front 14

________is the time required for one wave to pass a given point

Back 14

period

Front 15

the angle at which a wave bounces off an object will be equal to the angle at which it first struck the object

Back 15

Law of Reflection

Front 16

the interaction of waves resulting in a wave pattern which appears to be stationary is called a ___________

Back 16

standing wave

Front 17

the lowest point of a transverse wave is called the ____________

Back 17

trough

Front 18

adding energy at the natural frequency of an object is called __________

Back 18

resonance

Front 19

the number of waves that pass a fixed point in one second is the __________ of the wave

Back 19

frequency

Front 20

______________ occurs when 2 waves combine to form a new wave

Back 20

interference

Front 21

A group of covalently bonded atoms is referred to as a ___

Back 21

molecule

Front 22

atoms or groups of atoms which have an overall electrical charge are called _________

Back 22

ions

Front 23

Compounds formed by the combination of a metal and a nonmetal will have ________ bonds

Back 23

ionic

Front 24

A magnesium atom and a chlorine atom would form a _____ bond

Back 24

ionic

Front 25

A phosphorus atom and an oxygen atom would form a ________ bond

Back 25

covalent

Front 26

A potassium atom and a sulfur atom would form a _____ bond

Back 26

ionic

Front 27

A silver atom and a gold atom would form a ______ bond

Back 27

metallic

Front 28

Substances which speed up the rate at which a chemical reaction takes place but are not changed by the reaction are called ________.

Back 28

catalyst

Front 29

Substances which prevent or slow down the rate at which a chemical reactin takes place are called __________.

Back 29

inhibitors

Front 30

During chemical reactions, bonds within the reactants are broken. When chemical bonds are broken, energy is _______.

Back 30

absorbed

Front 31

During the formation of products new chemical bonds are formed. During the formation of chemical bonds, energy is ___________.

Back 31

released

Front 32

The term used to describe the loss of electrons during a chemical recton is ______.

Back 32

oxidation

Front 33

The term used to describe gaining electrons is ________.

Back 33

reduction

Front 34

An insoluble compound that comes out f a solution during a chemical reaction is called a ________.

Back 34

precipitate

Front 35

A number placed in front of a symbol or formula to indicate the number of particles is a ____________.

Back 35

coefficient

Front 36

All matter can be classified as either a _________ or _______

Back 36

substance; mixture

Front 37

There are 2 different kinds of mixtures, ___________ mixtures and ___________ mixtures

Back 37

homogeneous; heterogeneous

Front 38

Pure substnces may be either ________ or ________

Back 38

element; compound

Front 39

When 2 or more substances are mixed together but not chemically combined, the resulting combination is called a _____

Back 39

mixture

Front 40

The fact that iron cannot be changed into a simpler form indicates that iron is a _______

Back 40

element

Front 41

When 2 or more substances are combined, but each retains most of its propertes, the resulting combination is called a ________

Back 41

mixture

Front 42

A _______ can be broken down into simpler substances only through a chemical change

Back 42

compound

Front 43

A homogenerous mixture in which one or more substances is is dissolved in another is called a _________.

Back 43

solution

Front 44

Mixtures in which the different components are not evenly distributed or mixed, are referre to as __________

Back 44

heterogeneous mixture

Front 45

if an element is didvided into smaller and smaller parts, the smallest particle obtaned would be a _______--

Back 45

atom

Front 46

A substance that cannot be changed into simpler substances by a chemical change is called a ________.

Back 46

element

Front 47

When paint is allowed to sit undisturbed the pigments which give its color will separate out and settle to the bottom of the can. This fact tells us that the paint mixture is a _________

Back 47

suspension

Front 48

Water can be brokn down into both hydrogen and oxygen gas. This type of change would be referred to as a __________ change

Back 48

chemical

Front 49

Hydraulic devices use the principle that a change of pressure at any point in a confined fluid is transmittd to all points in that fluid in proportions that are _______. This principle is know as _________ principle

Back 49

equal; Pascal

Front 50

Comparing the rates at which air passes over and below the wings of an aiplane, the air passing below he wing travels _______.

Back 50

slower

Front 51

Force per unit area is _______

Back 51

pressure

Front 52

Another term for stating that a certain amount of water has been moved aside by a object immersed in it is that the water has been ________.

Back 52

displaced

Front 53

If the buoyant force of a liqud is greater than the weight of a immersed object, the object will ______

Back 53

float