1.Define the following terms: wave, frequency, period 2.Draw a simple sine waveform and label these: amplitude, wavelength, crest, trough.

Slides:

Advertisements

Similar presentations

Topic 11 – Wave Phenomena.

Advertisements

Objectives Identify how waves transfer energy without transferring matter. Contrast transverse and longitudinal waves. Relate wave speed, wavelength, and.

The Interaction of Waves

Net vibration at point P:

Waves Energy can be transported by transfer of matter. For example by a thrown object. Energy can also be transported by wave motion without the transfer.

Condition for generating a stable interference pattern Coherent waves are two circular waves of same frequency, wavelength, amplitude and phase.

2-D waves in water A bobber moves up and down in simple harmonic motion and produces water waves. Bright rings are wave crests; dark rings are wave troughs.

Behavior of Waves Reflection, Refraction, Diffraction and Interference in waves.

Wave Properties Chapter 14.

By Bhaskar Department of Physics K L University. Lecture 3 (30 July) Interference.

When an object moves back and forth, it is called a vibration

A wave is a single vibratory disturbance of energy as it propagates through a medium. A pulse is a single disturbance. A pulse on a rope. This is an example.

Chapter 12: Vibrations and Waves Section 1: Simple harmonic motion Section 2: Measuring simple harmonic motion Section 3: Properties of waves Section 4:

Chapter 11:Vibrartions and Waves

Chapter 1 Interactions of waves. Key Terms Reflection Refraction Interference Constructive interference Standing wave Antinode Law of reflection Diffraction.

What is a wave?  A wave is a transfer of energy from one point to another via a traveling disturbance  A wave is characterized by its wavelength, frequency,

Guitar Strings and Crumbling Bridges Standing Waves and Resonance.

Wave Interactions.

 How do you find the amplitude of a pendulum?  In simple harmonic motion, where is the velocity highest/lowest? Acceleration? Force?  What is the period?

Wave Behavior Notes. Reflection Reflection involves a change in direction of waves when they bounce off a barrier.

Vibrations and Waves Waves Periodic Motion Periodic motion – a motion that repeats in a regular cycle. Simple harmonic motion – results when.

11/24/08 Warm Up Draw a wave and label the crest and trough.

What happens when two wave pulses collide?. Interference – Two waves “collide,” but pass through each other undamaged – Superposition Principle: when.

Standing Waves. What is a standing wave? A standing wave is the result of identical, periodic waves moving in opposite directions. When reflected waves.

16 Superposition and Standing Waves Superposition of Waves Standing Waves Additional: Superposition of Standing Waves, Harmonic Analysis & Synthesis Hk:

Wave Interference Chapter 8.3. Interference What happens when 2 waves pass through the same region of space at the same time.

Wave Interference Physics Ch 12. Sec When two waves come together they can occupy the same space  Superposition – multiple waves occupying the.

Waves. Waves 3 Types of Waves Mechanical Waves: Wave motion that requires a medium (ie. water, sound, slinkies, …) Electromagnetic Waves: No medium is.

Mr. Kuffer. Wave Interference When two wave pass each other their superposition causes reinforcement or cancellation.

Wave Interactions. What do you think will happen when waves run into objects they can’t go through???

17.3 Behaviors of Waves Reflection Refraction Diffraction Constructive Interference Destructive Interference Standing Waves.

Interference. Overlap  Waves from multiple point sources overlap. Crest on crest Trough on trough Crest on trough  Overlapping waves add directly. Principle.

 Wave energy depends on amplitude, the more amplitude it has, the more energy it has.

Wave behavior homework Tuesday, March 29, Wave Behavior  Go to my website and do the following:  Review the PPT under ‘wave behavior resources’.

Waves Vocabulary. For each word, you need to: 1.Provide a physics definition 2.Write the definition in your own words 3.Draw a picture or provide an example.

Wave Interference and Standing Waves. Interference Constructive interference – Peak and peak – Trough and trough += Destructive interference – Peak and.

Interference Of Waves.

Reflection & Standing waves

Diffraction of Water Waves

Wave Interactions Chapter 14-3.

Often, two or more waves are present at the same place and same time

Standing Waves Destructive interference Constructive interference

15.3 Interactions of waves Key concepts: How do reflection, refraction, and diffraction change a wave’s direction? What are the different types of interference?

Wave Interactions.

5.1.4 Interference and Standing Waves

Wave Interactions.

Physical Science: Chapter 15: Section 3

Introduction to physics

Wave Superposition.

How do multiple waves interact with one another?

Section 3-3 Wave Interactions.

Vibrations and Waves Wave Interactions.

WAVE PROPERTIES 1) Reflection- Wave is turned back due to a barrier. (Ex- echo) Law of reflection: When a wave is reflected at a boundary, the incident.

11-3: PROPERTIES OF WAVES.

11-3: PROPERTIES OF WAVES.

P. Sci. Unit 5 Waves Cont..

Wave Interactions When two waves come together, they do not bounce back from each other – instead they pass through one another. Ex: Sound waves are unaffected.

Wave Interference.

Ch. 12 Waves pgs

Vibrations and Waves Wave Interactions.

Chapter 17-3 Notes Name: The ripples visible on the bottom of the pool are caused by light shining through surface waves.

Vibrations and Waves.

Physics A First Course Vibrations, Waves, and Sound Chapter 20.

14.2 Wave Properties.

Interference Of Waves.

Physics A First Course Vibrations, Waves, and Sound Chapter 20.

17.3 Behaviors of Waves Reflection Refraction Diffraction

Presentation transcript:

1.Define the following terms: wave, frequency, period 2.Draw a simple sine waveform and label these: amplitude, wavelength, crest, trough

Define the following terms: 1)Superposition 2)Constructive interference 3)Destructive interference 4)Standing wave 5)Nodes 6)Antinodes

The Properties of Waves 1.Reflection 2.Refraction 3.Superposition 4.Diffraction

Have you ever experienced having a really bad cell phone reception in the middle of an open, urban area?

Question: What happens when a wave meets another wave? Wave + Wave = ?

Superposition (Interference) Two waves can be ‘added’ together Constructive interference occurs when the two waves are in phase (i.e. crests meet crests, troughs meet troughs) Destructive interference occurs when they are 180 degrees out of phase (i.e. crests meet troughs)

Constructive Interference (Antinode)

Destructive Interference (Node)

Ruben’s Tube

Standing Wave, Nodes and Antinodes Wave produced by the superposition of two equal but opposite waves Antinodes – places where constructive interferences occur (double crest and double trough) Nodes – places where destructive interferences occur (crest + trough = zero displacement)

Interference Pattern Anti-nodes are formed when constructive interferences occur where two waves are in phase because the path differences are whole numbers (0, 1, 2, 3…). Nodes are formed when destructive interferences occur where two wave are 180 o out of phase because the path differences are ½, 1½, 2½, 3½…

Constructive Interference Destructive Interference Anti Nodes (anti nodal line) Nodes (nodal line) Crest + Crest Trough + Trough Crest + Trough In phase180 o out of phase Path differences are 0, 1, 2, 3, 4… Path differences are ½, 1½, 2½, 3½…