Chapter 11/12

Front 1

Sonograms are possible because some ultrasound waves are _____________ when they pass from one type of material to another.

Back 1

reflected

Front 2

In a vacuum, all light travels at the same speed, which is:_____________

Back 2

3 10*8 m/s

Front 3

Soundwaves with frequencies higher than 20,000 Hz are referred to as:_____________ waves

Back 3

ultrasonic

Front 4

A transparent object that can separate white light into diffferent colors is called a _________

Back 4

prism

Front 5

A lens that bends light outward is called a _________ lens

Back 5

diverging

Front 6

The matter through which a wave travels is called the __________

Back 6

medium

Front 7

A lens that bends light inward is called a ______ lens

Back 7

converging

Front 8

Reflection of light into random directions is called:____________ reflection

Back 8

difussion

Front 9

The bending of waves as they pass from one medium to another is called

Back 9

I DO NOT KNOW THE ANSWER BECAUSE SHE MARKED IT WRONG ON YOURS AND DID NOT WRITE THE CORRECT ANSWER

Front 10

In the particle model of light, individual packets of light are called ________

Back 10

photons

Front 11

The twom onst common models of light describe it as a wave or a stream of ________

Back 11

particles

Front 12

A wave that causes the particles of the medium to vibrate paralell to the direction the wave travels is called a ____________ wave

Back 12

longitudional

Front 13

The image that you see in a mirror that results from the apparent path of light rays is called a _______________ image

Back 13

virtual

Front 14

When a sound wave strikes your eardrum, it causes forced vibrations that are transferred to the:___________________________

Back 14

hammer, anvil, and stirrup

Front 15

The structure within the cochlea containing hair cells that vibrate at different natural frequencies is the:________________

Back 15

basilar membrane

Front 16

Light waves:_________

Back 16

Are electromagnetic waves

Front 17

How loud a sound is depends on:___________________

Back 17

the amplitude of the waves

Front 18

Which type of electromagnetic wave has the highest frequency? ______________

Back 18

gamma rays

Front 19

The intensity of a sound describes:______________

Back 19

its loudness at a particular distance

Front 20

The effect in which white light seperates into different colors is called:________

Back 20

dispersion

Front 21

An orange looks orange because it:________________

Back 21

reflects orange light and obsorbs other colors

Front 22

A sonar system measures distance by determining the:______________

Back 22

time it takes for sound waves to bounce off a surface

Front 23

when light rays reflect off a rough surface, they:_______________

Back 23

scatter in many different directions

Front 24

The particle model of light explains how light can:______________

Back 24

travel through an empty space without a medium

Front 25

White light breaks up into different colors when it passes through a prism because of:______________

Back 25

differences in wave speed

Front 26

The difference between visible light and X rays is that:________________

Back 26

the frequency of X rays is greater

Front 27

The frequency of sound waves is determined by the:_____________

Back 27

source of the wave

Front 28

An ultrasound system can produce images of body structures because sound waves:_____________________

Back 28

travel at different speeds through materials of different densities

Front 29

A __________ is a good mathematical model for representing transverse waves

Back 29

sine curve

Front 30

Sound travels fastest in:___________

Back 30

Sea water

Front 31

Light waves are

Back 31

transverse

Front 32

Short-range radar works by sending a signal out from a control tower that is:_________________

Back 32

reflected off a plane back to the control tower

Front 33

The rate at which light energy flows through a given area of space is referred to as its:__________

Back 33

intensity

Front 34

The law of reflection states that when light rays reflect off a surface the angle of incidence:____________

Back 34

equals the angle of refraction

Front 35

The medium seismic waves travel through is:_________

Back 35

rocks and other materials inside Earth

Front 36

Sound waves are:________

Back 36

longitudinal waves

Front 37

Which type of electromagnetic wave has the greatest wavelegnth:___________

Back 37

radio waves

Front 38

The pitch of a sound is most clearly related to the:______________

Back 38

frequency of vibrations

Front 39

A virtual image caused by reflection of light in the atmosphere is called:_________

Back 39

a mirage

Front 40

The frequency of a sound wave determines:____________

Back 40

the pitch of the sound

Front 41

Sound waves:__________

Back 41

require a medium