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Sound and Light Unit Test Flashcards | StudBud
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Sound and Light Unit Test
Sound and Light Unit Test
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Answers
1
The number of times an object vibrates in a given period of time is...
wavelength
pitch
frequency
sound
2
A compression wave that moves outward from its source s a ...
pitch
sound
wavelength
frequency
3
wavelength is best described as....
highest point of a a wave
total number of complete waves in one cycle
distance from one point on a wave to same point on next wave
lowest part of a wave
4
Sonar helps people find information about an object?
color
weight
temperature
location
5
What are three types of matter through which sound travels?
air, fountians, solids
radio, tv, ipod
solid, liquid, gas
waterfall, rain, lemonade
6
When all the colors of the visible spectrum are combined what color light is produced?
white
yellow
red
black
7
A teacher ask students to draw a compression wave which student drew it correctly?
3
1
4
2
8
Which is the correct order of the colors of the visible light spectrum?
green blue violet red orange and yellow
red orange yellow green blue violet
red orange blue violet green
orange yellow green blue violet
9
How many meters per second will sound travel at 60 degrees Celsius?
366 meters per second
343 meters per second
355 meters per second
331 meters per second
10
In the wave above, where the molecules are pressed together in some parts this is called?
rarefaction
direction of travel
compression
wavelength
11
When frequency increases what else goes up?
frequency
wavelength
sound
pitch
12
In a sound with a high pitch...
wavelengths cannot be compared to a low pitched sound
wavelengths are longer than a low pitched sound
wavelengths are shorter than a low pitched sound
<p>waveslengths are same lengths as low pitched sound</p>
13
some animals make and hear frequencies of sound vibrations that humans....
ca not make or mimic
can make but can not hear
can mimic but can not hear
can not make or hear
14
When a rainbow is formed outside naturally what causes light to refract?
glass prisms
small raindrops
sunlight rays
tiny mirrors
15
The visible spectrum is?
only the black
the light people can see
wavelengths
frequencies
16
During a thunderstorm you see lightning before you hear thunder...why?
light has greater mass than sound
light travels faster than sound
sound and light travel at the same speed
sound has longer wavelengths than light
17
Which of these objects is opaque?
stained glass window
liquid water
eyeglass lense
brick wall
18
How do musical instruments produce sound?
by pitching sounds
through air molecules
through vibrations
hiding wavelengths
19
Using a child's toy to show sound waves ..what kind of waves are demonstrated?
Radio
Light
Compression
X-ray
20
What is labeled number 4 on the diagram?
wavelength
amplitude
trough
crest
21
Which item creates more than 50 decibels of sound?
quiet radio
leaves rustling
whisper
conversation
22
Sound travels slowest through ...
gold
water
oxygen
silver
23
which tool is used to separate white light into the color spectrum?
d
a
c
b
24
A disturbance moving through a medium such as a solid, liquid, gas is a ..
sound
wave
pitch
model
25
Night shift guy needs to sleep all day. What type shade should he put on this window?
reflective
opaque
transparent
translucent
26
The part of the wave where molecules are spread apart is called?
rarefaction
wavelength
direction
compression
27
which item reflects light?
mirror
wax paper
prism
magnifying glass
28
Sound travels slowest through
liquids
gases
gold
solids
29
Which item is translucent?
red paper
wax paper
black paper
clear paper
30
SONAR uses....
reflected sound
high pitched sound
low sound
refraction
31
Put bottles in pitch order by sound they will make when hit- low to high...
A,B,D,C
C,D,B,A
B,A,D,C
B,C,A,D
32
In order for humans to make sounds, the vocal cords must produce...
saliva
pitch
vibrations
wavelengths
33
How is the use of sound waves helpful to this whale?
makes the water warmer
helps whale locate food
makes it easier to obtain oxygen
signals fish to move out of whales path
34
sound is a form of ..
machine
energy
frequency
light
35
In the visible light spectrum, the color of light with the longest wavelength is?
indigo
yellow
violet
red
36
The molecules of solids are close together?
sound travels more quickly through liquids
sound does not travel through solids
sound travels more quickly through solids
sound travels more slowly through solids
37
What happens when a material absorbs all visible light and no light is reflected back?
a rainbow appears
objects are smaller
black is seen
white shows up
38
Which item is transparent?
grassy field
painted bench
metal bike
clear glass
