Speech Science: Nature of Sound Waves

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What is the primary requirement for sound to be transmitted?

A specific frequency

A mechanical vibration

A medium of transmission (correct)

A receiver or listener

What is elasticity in the context of sound waves?

A restoring force that causes objects to return to their original shape

A measure of the frequency of sound waves

A type of mechanical vibration

A property of matter that determines how much an object changes shape under pressure (correct)

What is the ratio of applied pressure change to the resulting fractional change in length or volume called?

Elasticity coefficient

Young's modulus

Index of Elasticity (correct)

Spring constant

What is the name of the modulus that describes the elasticity of linear objects?

Young's modulus Signup and view all the answers

Can sound waves travel in a vacuum?

No, sound waves require a medium to transmit Signup and view all the answers

What is the relationship between the restoring force of a spring and its elasticity?

The restoring force is proportional to the elasticity Signup and view all the answers

What is the unit of the elasticity modulus of the medium?

N/m2 Signup and view all the answers

What is the speed of sound dependent on?

Both the elasticity modulus and density of the medium Signup and view all the answers

What is the unit of the speed of sound?

m/s Signup and view all the answers

What is the value of the speed of sound in steel, according to the example?

5096.47 m/s Signup and view all the answers

What does GPa stand for?

Giga Pascals Signup and view all the answers

Why was the problem revisited in the example?

To estimate the speed of sound without using a calculator Signup and view all the answers

What is the shape of the oscillation made by a pendulum?

Sine Signup and view all the answers

What is the value of velocity at points B and D in a pendulum's motion?

Zero Signup and view all the answers

What happens to the forces at point A/C/E in a pendulum's motion?

All forces cancel each other out Signup and view all the answers

What is the term for the 'force' that is not a real force, but rather a concept used to describe an object's tendency to resist changes in its motion?

Inertial force Signup and view all the answers

What is the concept that carries the pendulum through point C?

Inertia and momentum Signup and view all the answers

What is the phase of the pendulum at point A?

Equilibrium Signup and view all the answers

What is the purpose of 'rounding and estimation' in mathematical calculations?

To solve a simpler problem by approximating the values Signup and view all the answers

What is the term used to describe the back-and-forth motion of a mechanical object around its equilibrium position?

Oscillation or vibration Signup and view all the answers

What is the density of concrete given in the problem?

2600 kg/m3 Signup and view all the answers

What is the process of thinking backwards to find the factors of a number?

Factoring Signup and view all the answers

What is the advantage of knowing the times tables and factoring?

It makes solving problems involving fractions easier Signup and view all the answers

What is the term used to describe the amount of time taken by a wave to complete one cycle?

Period Signup and view all the answers