Q1.what affects the velocity of sound ? a)density b)displacement c) elsticity d)amplitude?

Question

Q2.do sound waves have refraction?

Q3.what are te lower and upper fixed point of a
a)celsius thermometer
b)faenheit thermometer

Answer 1

Q1.a)density
Q2. yes
Q3. Celcius -- 0 water freezes; 100 water boils (sea level)
Fahrenheit -- 32 water freezes; 212 water boils (sea level)

Answer 2

The speed of sound varies becuase of the medium the sound is travelling through as sound waves are logitudinal waves they have special chracterstics as compared to transversal.
Medium, temperature, density, elasticity and amplitude effects the velocity of sound.
The amplitude slightly varies the speed but its not such a big factor so density and elasticity effects alot on the speed of sound.

2. Yes sound waves do refract as you know that it is because the waves change from one medium to another in sound waves take the exapmple of a car woofer; well when the cone of the speaker vibrates and produces sound, the sound produced consist of different length of sound waves (Bass, Treble, Mid)
When the sound waves leaves the sound box of the speaker and move out into the car's trunk they refract because of the change in medium.

3. a) 0-100 degree celsius
b) 32- 212 degree fahrenheit
As we know that Celsius Tc = (5/9)*(Tf-32) tf is temperature for fahrenhit
Tf = (9/5)*Tc+32

Answer 3

Q1. Density
Q2. No
Q3. Celsius thermometer ==> 0-100 c
farenheit thermometer==> 32-212 f

Answer 4

ans 1: Density affects the velocity of sound.Velocity of sound in a gas varies inversely as the square root of its density.

Ans 2: Yes, sound waves have refraction.

Ans 3:a) L.F.P. of celsius thermometer is 0 degree c n its U.F.P. is 100 degree c. Again b) L.F.P.of ferhenheit scale is 32 F and its U.F.P. is 212 F.

Answer 5

1.the factors you have mentioned affect the intensity of sound.
however, the elasticity doesn't affect the intensity and also the velocity of the sound much.
as density increases, velocity of sound decreases owing to the reduction in sound energy.
as displacement increases, velocity of sound decreases due to the same factor.
amplitude has unconsiderable affect on the velocity of sound.

2. sound waves don't get refracted but the may get reflected.

3.in a celsius thermometer, L.F.P. = 0C, U.F.P. = 100C
in a farhenheit thermomter, L.F.P. = 32F, U.F.P. = 212F

Answer 6

1 Sound is mechanical elastic wave and its velocity in air depends on density and elasticity of air
2 yes
3 On both Celsius and Fahrenheit scales, lower fixed point is melting of ice and upper fixed point is boiling of water
a) on Celsius scale zero degree is lower fixed pt. and 100 degree is upper fixed point
b) on Fahrenheit scale 32 degree is lower and212 degree is upper fixed point

Answer 7

Q1.
ans:a)density 'd' of the medium and c)elasticity 'E' of the medium
velocity of sound in a medium is given by the formula: V=root of E/d

Q2.
ans:sound waves have the property of reflection but i'm not sure about refraction.

Q3.
ans:a)u.f.p.-100degree C(boiling point of water) & l.f.p.-0degree C(freezing point of water)
b)u.f.p.-210degree F(boiling point of water) & l.f.p.-32degree F(freezing point of water)

Answer 8

I only know Q1. "The speed of sound in the air depends on density of air and the density of air depends on the temperture." so sound can travel the same speed at sea level (Long Island as well 1 mile up in Denver) Depends on the temperture which determinds the density.

Answer 9

Ans1. a
Ans2. No
Ans3. a)upper limit-100 degree celcius lower limit- 0 degree celcius
b) upper limit-180 degree faenheit lower limit- 32 degree faenheit

Answer 10

1. density
2. no
3.celsius-0-100
fahrenheit-32-212