T6:Waves

What are the two types of waves?

Longitudional or transverse.

What type of wave are ripples on a water surface?

Transverse waves.

What type of wave is sound waves travelling through air?

Longitudional waves.

What do all waves transfer?

All waves transfer energy from one place to another.

What type of energy do ripples transfer?

Kinetic energy.

What type of energy do sound waves transfer?

Sound energy.

What is the term for when a wave moves up and down?

Oscillations.

Describe transverse waves:

In transverse waves the oscillations are perpendicular to the direction of energy transfer.

Describe longitudional waves:

In longitudional waves, the oscillations are parallel to the direction of energy transfer.

What do longitudional waves show areas of?

Longitudional waves show area of compression and rarefaction.

What do all longitudional waves need?

A medium to travel in.

Do all transverse waves require a medium?

Not all transverse waves require a medium.

For both ripples on a water surface and sound waves in air,is it the wave that travels or the water and the air that travels?

It is the wave that travels and not the water or the air.

What is the amplitude of wave?(Give a description and draw/label a diagram of a transverse wave)

The amplitude of a wave is the maximum displacement of a point on a wave from its undisturbed postion.

What is the wavelength of a wave?(Give a description and draw/label a diagram of a transverse wave)

The wavelength of a wave is the distance from a point on one wave to the equivalent point on another wave.

What is the symbol for wavelength?(Give the name of the greek letter and draw the symbol)

Lambda.

How is wavelength labelled on a longitudional wave?

Wavelength is either from one compression to the next compression or once rarefaction to the next rarefaction.

What is the frequency of a wave?

The frequency is the number of waves passing a point each second.

What is the unit for frequency(Give the name and the symbol)

Hertz(Hz)

What is 1Hz equal to?

1Hz=1 wave per second.

What is the period of a wave?

The period is the time for one wave to pass a point.

What is the equation to calculate the period of a wave?(include wor/symbol equation and units)

What is the wave speed?

The wave speed is the speed at which the energy is transferred through the medium.

What is the equation to calculate the wave speed?(include wor/symbol equation and units)