standing waves

How is a standing wave formed?

They are formed when two waves with the same amplitude and frequency superpose on top of each other while travelling in the opposite direction.

What is the total amplitude of a standing wave?

The sum of the individual waves amplitudes.

What is constructive interference?

When the waves superpose to create a larger oscillation.

What is destructive interference?

When the wave superpose to create a smaller oscillation

What is total destructive interference?

When the amplitudes cancel each other out and the net amplitude is zero.

What are the differences between progressive waves (P) and standing waves (S)

P: All points have the same amplitude. S: Amplitude depends on the amount of superposition. P:Energy is transferred along the wave. S: Energy is stored. P:Does not have nodes or antinodes. S: Has both of those. P: Wave speed is the speed that the wave moves throughout a medium. S: Wave speed is the speed that the waves oscillate.

What are nodes?

Points where total destructive interference takes place. There is no displacement or movement.

What are antinodes?

Points where total constructive interference takes place and there is maximum displacement and movement.

What is fixed end wave?

A standing wave that forms when they are two fixed ends. The fixed end always ends on a node.

what is the equation for the wavelength of a fixed end wave?

n is the number of harmonics. L is the length of the string.

Give an example of a instrument that has a fixed end wave.

Guitar.

What are the harmonics of the guitar string?

The number of frequencies it can naturally vibrate at.

What is the equation for the frequency of a standing wave.

T is tension. µ is the mass per unit length. V is the wave speed.

What is a fixed end and an open end wave?

A wave that has a fixed end and an open end. Open ends always end on a node. The number of harmonics is odd.

What is the equation for the wavelength of a fixed end and an open end wave?

Give an example of an instrument that has a fixed end and open end.

Clarinet.

What is an open end wave?

A wave with two open ends. Each ends an antinode. The end of the waves count as half a harmonic.

What is the equation for the wavelength of an open ended wave?

Give an example of an instrument that has 2 open w