Describe a Wave. Chapter 14 Waves & Energy Transfer.

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Ch. 14 Waves and Energy Transfer Milbank High School.

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Presentation transcript:

Describe a Wave

Chapter 14 Waves & Energy Transfer

Wave

Wave Pulse

Continuous Wave

Types of Waves

Transverse Wave

Longitudinal Wave

Surface Wave

Mechanical Waves

Electromagnetic Waves

Ray

Measuring Waves

Wave Speed

v =  d/  t

Crest Trough Amplitude Wavelength ( )

Displacement

Amplitude

Frequency (f)( )

Period (T)

Frequency Period Formula

Wave Velocity Formula

You are 525 m from a clock tower. You hear a clock’s chime at 450 Hz in 1.50 s. Calculate: v, T, & of the sound wave

You shout towards a wall km away producing a 85 cm wave. You hear the echo in 4.00 s. Calculate: v, T, & f

Waves passing from one medium to another

Incident Wave

Reflected Wave

Transmitted Wave

Wave Behavior

Radio waves travel at 3.00 x 10 8 m/s. Calculate the wavelength of your favorite radio station.

A tsunami is formed 1800 km away producing a 60 ft tidal wave that strikes shore 3.0 hr later. Calculate: v wave in m/s

Interference

Principle of Superposition

Constructive Interference

Destructive Interference

Node

Antinode

Standing Wave

Waves in Two Dimensions

Reflected Wave

Law of Reflection

 reflection =  incident  

Refraction

Less Dense Medium More Dense Medium Normal

Diffraction

Three waves (3.0 m, 0.70 m, & 1.50 m) pass simultaneously through a medium. Calculate maximum & minimum displacement:

Infrared light with a wavelength of 1.20  m travels through space at 3.00 x 10 8 m/s. Calculate its: frequency & period

A 115 Hz note from a base guitar travels through a room at 345 m/s. Calculate its: wavelength & period

A series of 6.0 ft waves move towards an island. Determine the side of the island where the waves will be the largest. Front of back

Three waves (2.0 m, 1.5 m, & 1.2 m) pass simultaneously through a medium. Calculate maximum & minimum displacement:

Blue light with a wavelength of 450 nm travels through space at 3.00 x 10 8 m/s. Calculate its: frequency & period

An 85 Hz note from a bass guitar travels through a room at 340 m/s. Calculate its: wavelength & period

Island Phenomenon

Answer the questions on page 268 & 269, and work problems a on page 269.