6Th Grade Science May 2007 Chapt 1 Waves

Front 1

what is the HIGH point of a wave

Back 1

crest

Front 2

what is the LOW point of a wave

Back 2

TROFT

Front 3

amplitude = the ______ amount of movement from the resting position. (ENERGY)

Back 3

MAXIMUM

Front 4

THE greater the _____ the more energy the wave has

Back 4

amplitude

Front 5

wavelength = the distance between...

Back 5

crests or trofts

Front 6

what are wavelengths measured in

Back 6

lambda which is in meters

Front 7

frequency = the number of _____ per unit of time

Back 7

wave cycles

Front 8

what is frequence of waves measured in

Back 8

meters/sec in hertz

Front 9

More/increased energy will give a high or low frequence?

Back 9

high

Front 10

Dececreased ______ will give a low frequency

Back 10

energy

Front 11

what are 3 types of waves

Back 11

transverse, longitudinal,and combination waves(surface waves)

Front 12

which wave has particles of waves which move at a right angle to the direction the wave is moving.

Back 12

transverse

Front 13

which wave is a combination of transverse and longitudical waves which occur when waves form different mediums meet. Called a surface wave.

Back 13

combination

Front 14

Which wave has particles which moe in the same direction as the wave. Because of this, it is made up of compressions and refractions.

Back 14

longitudinal

Front 15

give an example of transferse waves

Back 15

electromagnetic wave

Front 16

give an example of longitudinal wave

Back 16

sound waves

Front 17

give an example of combination waves

Back 17

water/ocean waves

Front 18

_____ is when the wave bounces back after hitting a surface. It will bounce back at the same degree which it hit the surface

Back 18

reflection

Front 19

when the wave bends because of a change in speed. The change in speed occurs because the wave travels through one medium to another. what type of wave interaction?

Back 19

refraction

Front 20

what is differaction

Back 20

when the wave bends around the edge of an obstacle

Front 21

what is interference

Back 21

when 2 or more waves arrive at the same place at the same time. They will combine called constitive interference or cancel each other called destructive interference

Front 22

what is a standing wave

Back 22

when the waves appear to not be moving (ex. a rope tied to a doorknob)

Front 23

waves are made of

Back 23

vibrations

Front 24

what is a wave

Back 24

a traveling distrubance in all directions. transfers energy from one place to another

Front 25

only the ____ MOVES FORWARD not the medium (the material). The object will bob and return to rest position once wave passes

Back 25

waves

Hint 25

no cheating!

Front 26

wave energy - an object that is vibrating is ____ and has ____

Back 26

moving and has energy

Front 27

when an object vibrates the particles of that object cause other particles to ______. This is how the wave is ______

Back 27

vibrate
transmitted

Front 28

what wave requires a medium to travel?

Back 28

Mechanical waves

MMMMMMechanical = MMMMMatter

Front 29

what wave does not require a medium? can travel in what is called a vacuum (empty space)

Back 29

Electromagnetic wave

example - light, xrays

Front 30

by what means does energy travel? In other words, what form does energy travel

Back 30

IN WAVES

Front 31

WHAT IS a distrubance that transmits energy through matter or spaces

Back 31

wave

Front 32

what is a medium

Back 32

a substance through which a wave can travel

Front 33

a wave in whic the particles of the wave's medium vibrate perpendicular to the direction the wave is traveling

Back 33

transverse wave

Front 34

a wave in which the particies of the medium vibrate back and forth along the path that the wave travels

Back 34

longitudinal wave

Front 35

what is amplitude

Back 35

the maximum distance a wave vibrates from its rest position

Front 36

what is wavelength

Back 36

the DISTANCE between one point on a wave and the corresponding point on an adjacent wave in a series of waves

Front 37

what is frequency

Back 37

the number of waves produced in a given amount of time

Front 38

what is wave speed

Back 38

the speed at which a wave traels

Front 39

the bouncing back of a wave after it strikes a barrier or an object

Back 39

reflection

Front 40

the bending of a wave as it passes at an angle from medium to another

Back 40

refraction

Front 41

what is diffraction

Back 41

the bending of waves around a barrier or through an opening

Front 42

what is interference

Back 42

a wave interaction that occurs when two or more waves overlap

Front 43

a wave that forms a stationary pattern in which portions of the wave do not move and other portions move with a large amplitude

Back 43

standing wave

Front 44

what occurs when an object vibrating at or near a resonant frequency of a second object causes the second object to vibrate

Back 44

resonance

Front 45

which of the following waves might your family experienced after a day at a beach
A..water waves
B..microwaves
C..light waves
D..sound waves

Back 45

A- C- and D

Front 46

a wave can carry energy away from its source t or f

Back 46

true

Front 47

air doesn't travel with sound waves. what would happen if it did

Back 47

you mihgt feel a rush of air every time you heard a sound

Front 48

waves can transfer _____ through the vibration of ______ in solid, liquid, or gas

Back 48

energy
medium

Front 49

electomagnetic waves are waves that require a medium to transfer energy t or f

Back 49

false

Front 50

which of the following lists of waves contains ONLY mechanical waves
a. radio waves, x rays, sound waves
b. seismic waves, water waves, microwaves
c. microwaves, water waves, x rays
d. sound waves, seismic waves, water waves

Back 50

d.

Front 51

waves made by the breeze are very different than waves created by the speedboat. why

Back 51

waves created by the breeze are short and close together.

waves created by the speedboat are tall and widely spaced and have more energy

Front 52

which is NOT true of amplitude
a. the smaller the amplitude, the more energy that is carried by a wave
b. it is the maximum distance a wave vibrates from its resting position
c. the larger the amplitude of a water wave, the taller the wave
d. all

Back 52

a.

Front 53

wavelenth can be measured between corresponding points on two adjacent waves t or f

Back 53

true

Front 54

the frequency of a wave is the ____ of waves produced in a given amount of time. To measure frequency of a transverse wave, I can count the number of ____ or ____ that pass a point in a certain amount of time.

Back 54

number

crests troughs

Front 55

t or f
the frequency of a wave is not related to its wavelength

Back 55

false

Front 56

when wavelength decreases, frequency increases

Back 56

false

Front 57

a wave with a low frequency carries less energy than a wave with a high frequency

Back 57

true

Front 58

frequency is expressed in hertz

Back 58

true

Front 59

the speed of a wave is the ___ traveled by a wave in a given amount of ____.

Back 59

speed
time

Front 60

Wave speed is equal to

_____ x ______

Back 60

wavelength x frequency

Front 61

what can you calculate if you know the frequency and speed of a wave

Back 61

lambda

Front 62

the moon doesn't produce light like the stars do. so why does the moon shine

Back 62

because the sun shines so bright it reflects off the moon so we can see it

Front 63

reflection is when waves hit a barrier and some of them pass through it t or f

Back 63

false

Front 64

water waves cannot be reflected t or f

Back 64

false

Front 65

sound waves that reflect off canyon walls or classroom walls are called

Back 65

echoes

Front 66

why does a pencil in ahalf filled glass of water look like its broken

Back 66

because of refraction which is the bending of a wave as it is at an angle from one medium to another

Front 67

a wave bends when it enters a new medium because the part of the wave that enters first is traveling at a diffeent sped than the rest of the wave
t or f

Back 67

true

Front 68

which of the following are true of diffraction
a. waves curve or bend when they reach the edge of an object
b. waves bend through an opening
c. sound travels around buildings
d. the size of the barrier does not affect the amount of diffraction

Back 68

a, b, c

Front 69

diffraction of a wave depends on what two things

Back 69

its wavelength and the size of the barrier

Front 70

interference is the result of two or more waves combining to form three waves t or f

Back 70

false

Front 71

constructive interference or destructive interference?

the crests of two waves overlap

Back 71

constructive

Front 72

constructive interference or destructive interference?

the resulting wave has a smaller amplitude than the original waves had

Back 72

destructive

Front 73

constructive interference or destructive interference?

waves of the same amplitude cancel each other out

Back 73

destructive

Front 74

WHAT IS a distrubance that transmits energy through matter or spaces

Back 74

wave

Front 75

what is a medium

Back 75

a substance through which a wave can travel

Front 76

a wave in whic the particles of the wave's medium vibrate perpendicular to the direction the wave is traveling

Back 76

transverse wave

Front 77

a wave in which the particies of the medium vibrate back and forth along the path that the wave travels

Back 77

longitudinal wave

Front 78

what is amplitude

Back 78

the maximum distance a wave vibrates from its rest position

Front 79

what is wavelength

Back 79

the DISTANCE between one point on a wave and the corresponding point on an adjacent wave in a series of waves

Front 80

what is frequency

Back 80

the number of waves produced in a given amount of time

Front 81

what is wave speed

Back 81

the speed at which a wave traels

Front 82

the bouncing back of a wave after it strikes a barrier or an object

Back 82

reflection

Front 83

the bending of a wave as it passes at an angle from medium to another

Back 83

refraction

Front 84

what is diffraction

Back 84

the bending of waves around a barrier or through an opening

Front 85

what is interference

Back 85

a wave interaction that occurs when two or more waves overlap

Front 86

a wave that forms a stationary pattern in which portions of the wave do not move and other portions move with a large amplitude

Back 86

standing wave

Front 87

what occurs when an object vibrating at or near a resonant frequency of a second object causes the second object to vibrate

Back 87

resonance

Front 88

which of the following waves might your family experienced after a day at a beach
water waves
microwaves
light waves
sound waves

Back 88

water waves light waves and sound waves

Front 89

by what means does energy travel

Back 89

in waves

Front 90

waves can be transmitted through what phases of matter

Back 90

solid, liquid, gas

Front 91

what happens to the medium when a wave passes thru it

Back 91

it does not move

Front 92

what 2 properties affect the speed of a wave

Back 92

density and elasity

Front 93

define transverse wave

Back 93

a wa

Front 94

what is trough

Back 94

the lowest point of a transverse wave

Front 95

what is compression

Back 95

a region of higher density or pressure in a wave

Front 96

through a wave, what is transmitted

Back 96

re

Front 97

define amplitude

Back 97

the maximum distance a wave vibrates from its rest position

Front 98

a medium can carry longitudinal waves because of its
mass
color
ductility
density

Back 98

density

Front 99

the energy of a wave is directly related to what characteristic of a wave

Back 99

the amplitude

Front 100

define wave

Back 100

a disturbance that transmits energy through matter or space

Front 101

in what is wavelength measured

Back 101

meters

Front 102

hertz measures what part of a wave

Back 102

frequency

Front 103

define hertz

Back 103

the unit used to express frequency; one hertz is one cycle per second

Front 104

for what is lambda the symbol

Back 104

wavelength

Front 105

give an example of a wave that can be transmitted through a vacuum

Back 105

visible light/electromagnetic

Front 106

define frequency

Back 106

the number of waves produced in a given amount of time

Front 107

what happens to an object floating in water as a wave passes

Back 107

the object bobs up and down but does not move forward as the wave passes

Front 108

how are amplitude and the energy a wave has related?

Back 108

more energy = higher amplitude

less energy = smaller amplitude