# Waves

### Edgar, Daniel, Skyler

## Introduction

1) Waves transmit energy

2) Waves spread out

3) Waves transform energy

4) Waves are related to vibrations

## Two Types of Waves: Longitudinal and Transverse

## Transverse Waves

## Longitudinal Waves

## Spherical Waves

Wave Length - 0.02 m

Wave Frequency - 8 Hz

Wave Speed - 0.16 m/sec

## Plane Waves

Wave length - 0.03 m

Wave frequency - 6 Hz

Wave speed - 0.18 m/sec

## Dual Pin Interference

The interference between two sets of concentric waves that share the same frequency.

## Double Slit Interference

The interference from two sets of waves originating from a single source, that traveled through a barrier with two slits

When constructive interference occurs; interfering waves travel in the same direction. When destructive interference occurs; interfering waves travel in opposite directions.

Dual Pin

Originates from two sources

Starts as a spherical wave

Waves interfere with only each other

Originates from a single source

Starts as a plane wave

Waves interfere with stationary objects

## Wave Reflection

A change in the direction a wave is traveling after bouncing off a barrier between two kinds of media.

**The angle of reflection is equal to the angle of incidence**

Law of Reflection-

## Wave Diffraction

Change in the intensity or direction of a wave after passing by an obstruction who's size is about the size of the wavelength

The smaller the distance of the diffraction, the greater the deflection.