Types of Wave

Which ways can you draw transverse waves

-Displacement/distance graph

-Displacement/time graph

What does the peak to peak distance of a displacement/distance wave tell you

Wavelength

What does the peak to peak distance of a displacement/time wave tell you

Period

Shape of transverse waves

Sine waves

How to find the direction a particle on a wave moves in

Vertically in the direction of the part of the wave on the left

Compression

High pressure as lots of particles closer together

Rarefaction

Low pressure as particles in the medium further apart

Reflection

The wave is bounced back when it hits a boundary

Refraction

The wave changes direction as it enters a medium

Explain refraction

The wave changes speed as it enters a medium

What do longitudinal waves create when moving through a medium

Pressure variations

Intensity

The rate of flow of energy per unit area at right angles to the direction of travel of the wave

Intensity equation

I = P/A

How are intensity and amplitude related

Intensity is proportional to the square of the amplitude

How does the speed of EM waves differ in denser media

Slower

What are EM waves

Oscillating electric and magnetic fields at right angles to each other and the direction of travel