stud
bud
Sign up
Log in
Home
Library
Explore
SAT
More
Waves and Sound Flashcards | StudBud
Explore
/
Waves and Sound
Waves and Sound
29 terms
·
StudBud Administration
·
583 plays
Test Review for Waves. Sound and Light
Flashcards
29 cards
F
Practice quiz
P
Host live
L
Questions
29
Answers
1
What are the letters B and C pointing to?
Refractions
Wavelengths
Compressions
Rarefractions
2
What Happens when these two waves meet?
They add together to make a larger wave
They cancel each other out
They pass each other
They stay in the same place
3
What is Refraction?
Light rays bending around corners
Bouncing back of a light ray
Bending light as it changes Speed
Light being absorbed
4
The wavelength is 2 m and its amplitude 1 m, what is its frequency if its velocity is 25 m/s?
50 hz
25 hz
12,5 m
12.5 hz
5
The process by which a wave bounces off an obstacle in its path is called:
Rarefraction
Reflection
Refraction
Difraction
6
What happens when a crest meets a trough traveling in opposite directions?
The pass each other with out distorting
They become twice as big when they meet
They cancel each other out when they meet
They make a complex wave
7
In a ______ wave the oscillations in pressure are in the same direction the wave moves.
Light
transverse
Water
Sound
8
Which of the following waves has the lowest frequency?
B
D
A
C
9
How many Waves?
3
8
4
2
10
A Wave passes a dock 15 times in 3 seconds. Its frequency is:
0.33 hz
45 hz
6 hz
5 hz
11
This is an example of ____________.
reflection
Refraction
rarefraction
diffraction
12
The wavelength is determined by _____________
Length from 2 equal points on a wave
The height of the wave
The length from the line of origin to the crest
The number of waves per Second
13
There is 6 m between 2 crests, f= 15 hz. What is the speed of the wave?
90 m/s
0.8 m/s
180 m/s
0.4 m/s
14
Which of these is the proper way to make a longitudinal wave?
B
A
D
C
15
The moving part of a speaker goes in and out 500 times per second. The frequency produced is:
500 hz
0.002 hz
16
The angle of incidence is equal to the angle of reflection is known as ______
Law of Refraction
The Index of refraction
Law of Sines
Law of reflection
17
How would you decrease the natural frequency of a guitar string?
Shorten the string and tighten the frequency
Lengthen the string and loosen the tension
Make the string smaller in diameter
18
A musical scale is best described as a series of sounds:
Of different Frequencies and pitch
Of different musical instruments
Of different loudness and intensity
19
How many ewavess are in this picture? ____________
3
6
2
1.5
20
A 80-dB sound has a frequency of 510 hz and is traveling at 343 m/s in air. Wavelength = _____.
510 m
1.5 m
0.67 m
174930 m
21
Diffuse reflection occurs when __________
Light bends around corners
light hits an uneven surface and scatters
Light goes through semi- transparent medium
22
What happens to a wave as it moves trough a small opening?
It continues in parallel lines
It bounces backwards
It spreads out and diffracts
23
Why do objects in water appear to be in locations other than their actual location?
Light refracts
Light is absorbed
Light reflects
Light diffuses
24
Why do we see lightning before we hear the Thunder?
Sound is a longitudinal wave
Sound travels faster than Light
Light travels faster than sound
Thunder is louder than most sounds
25
The Property of sound that allows us to differentiate between a trumpet and a harp is _______
pitch
intensity
Quality
wavelength
26
Which wave is Slowest?
Gamma waves
Radio Waves
Light
Sound
27
How does the resonance of a wooden sound board or box effect sound?
Makes it softer
Lowers the pitch
Gives it a higher Frequency
Makes it louder
28
Supersonic means____________________
over 20,000 Hertz
Faster than Light
Faster than Sound
Louder than 200 dB
29
What unit do we use to measure loudness of a sound?
Decibels
Joules
Hertz
meters
