Core Physics – Energy L/O :- To understand diffraction Diffraction Exam Date -

Slides:

Advertisements

Similar presentations

Nature of Waves Chapter 20.

Advertisements

Wave Properties Refraction, diffraction and superposition.

In this presentation you will: explore how sound is propagated

Diffraction Noadswood Science, Diffraction To understand diffraction Wednesday, April 29, 2015.

Ripple Tank Summary.

Waves no matter what type, all have properties. Height is a property of waves no matter if it’s a ripple in a glass or a giant wave at the beach, it can.

Section 3 - The Behavior of Waves

WAVES Chapter 15.

Topic: Waves Aim: How do waves behave? Do Now: Take out last night’s HW. HW: Ditto – Forms of Energy (in your Energy Notes packet) Energy Castle Learning.

How do waves interact?. Reflection Reflection: Happens when a wave bounces back after hitting a barrier. Reflection: Happens when a wave bounces back.

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

Chapter 15.  Every sound, light and water wave that is heard and seen depends on waves  A wave is a disturbance that transfers energy from one place.

Characteristics of Waves Chapter 9 S8P4a. Identify the characteristics of electromagnetic and mechanical waves. S8P4d. Describe how the behavior of waves.

Wave Characteristics. Terms to Review Parts of a Wave – Crest – Trough – Pulse – Amplitude – Wavelength – Frequency – Period Types of Waves – Mechanical.

Core Physics – Energy L/O :- To be able to explain why waves refract “Does light always travel in a straight line?” Exam Date -

“Transformers – Roberts in disguise”

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,

Waves interact and transfer energy in predictable ways.

CHAPTER 12- WAVES. WHAT IS A WAVE? Mechanical waves vs non-mechanical waves?

Wave Interactions Describe refection, refraction, diffraction, and interference Compare destructive interference with constructive interference Describe.

11/11/2015Waves W Richards The Weald School. 11/11/2015 Simple Harmonic Motion Definition: simple harmonic motion is when acceleration is proportional.

The Behavior of Waves

Lesson Objectives By the end of this lesson, you will be able to: State the different types of waves and the difference between them Describe the diffraction.

Do now! Can you discuss with your partner all the things you can remember about the WAVES topic (topic 3)

Core Physics – Energy L/O :- To Know the order of the electromagnetic waves within the spectrum “Does light have a family?” Exam Date -

Wave Interactions.

Surface Waves. Surface Wave A wave that has characteristics of both transverse and longitudinal waves (Ocean Waves). Surface Wave Applet.

Core Physics – Energy L/O :- To understand redshift and Cosmic microwave background radiation “Why does an untuned TV buzz?” Exam Date -

Core Physics – Energy L/O :- To know the properties of waves and be able to explain reflection “Mirror, Mirror on the wall” Exam Date -

Chapter 1 Section 3 t-catch-the-physics-of-waves.html.

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

Transverse and Longitudinal Waves

Waves Waves can transfer energy and information without a net motion of the medium through which they travel. They involve vibrations (oscillations) of.

Core Physics – Energy L/O :- To be able to research and present the possible hazards of using mobile phones “Should you really be ‘glued’ to that phone?”

WAVES. What is a wave? A wave is a transfer of energy through matter or through space. It is a repeating disturbance. Examples of Waves Ocean Earthquakes.

Core Physics – Energy L/O :- To understand redshift and Cosmic microwave background radiation “In the beginning” Exam Date -

Chapter 10. Nature of Waves Wave Repeating disturbance or movement Carries energy through matter and space.

Review Game Eureeka. keep your own score You lose all the points in the round if you get a question incorrect.

JEOPARDY Welcome to Jeopardy Smoke and Mirrors Wave Behaviour Pot Pourri What the Snell?!? Miss Universal.

Waves in Action. WAVES waves in pool link to waves in water spherelink to waves in water sphere.

Wave Characteristics Rarefaction Wavelength Trough Transverse Period.

M. Manser (2014). Module P1:  Refraction of light M. Manser Sackville School.

24/06/2016 OCR Additional Science The Wave Model of Radiation W Richards A slideshow that covers the entire OCR 21 st Century 2006 Syllabus “Wave Model.

Waves Openers Mrs. V Science A. Crest, B. Wavelength, C. Trough, D. Amplitude

Standing Waves. Superposition (a) explain and use the principle of superposition in simple applications (b) show an understanding of experiments that.

Diffraction, Interference and Resonance

WAVES Chapter 15.

AP Physics Review Waves and Sound.

KS4 Waves: Diffraction, Interference and Resonance

Notes 3: The Behavior of Waves

Nature of waves.

1.3: WAVE BEHAVIOR AND INTERACTION

When light, sound, or heat hit a surface that it can’t pass through:

Wave Properties & Interactions

Wave Behaviors We will discuss different manners in which a wave can behave when it comes in contact with matter or other waves!

The Behavior of Waves.

Properties of Waves & Interactions

WAVES Wave Interactions.

Key areas Conditions for constructive and destructive interference.

A quick review and then some

1 2 3 Waves A wave transfers energy

Behavior of Waves Chapter 10.3.

Interactions of waves.

Warm up Where did the energy from the laser go when it disappeared in the blue dye yesterday? Think about the law of conservation of energy! Why does an.

Presentation transcript:

Core Physics – Energy L/O :- To understand diffraction Diffraction Exam Date -

Quick Quiz - What do you remember from last lesson? Draw and label a wave What is the law of reflection? What is the equation for working out the speed of a wave? What happens to a light ray when it travels from air through glass? Why does this happen? What is the equations for working out efficiency? What are the 2 different types of wave? Give an example How do you work out the pay-back time for insulation? What are the pros and cons of wind energy? Where are step-up transformers used? How does increasing the volume of a sound affect the wave?

What is happening in this picture? If sound and light are both waves. why can you hear around a corner but not see round it?

11/11/2015 Wave behaviour 1) Reflection 4) Diffraction3) Refraction 2) Refraction

11/11/2015 Diffraction More diffraction if the size of the gap is similar to the wavelength More diffraction if wavelength is increased (or frequency decreased)

Virtual Ripple Tank

11/11/2015 Sound can also be diffracted… The explosion can’t be seen over the hill, but it can be heard. We know sound travels as waves because sound can be refracted, reflected (echo) and diffracted.

11/11/2015 Diffraction depends on frequency… A high frequency (short wavelength) wave doesn’t get diffracted much – the house won’t be able to receive it…

11/11/2015 Diffraction depends on frequency… A low frequency (long wavelength) wave will get diffracted more, so the house can receive it…

11/11/2015 Interference Interference is seen when two waves of the same type cross:

Interference When 2 waves meet, they interfere with each other. If they meet each other exactly in phase, the amplitudes ‘add up’ to produce large crests and troughs. += This is called constructive interference.

If they meet each other exactly out of phase, the amplitudes ‘subtract’ to produce no peaks or crests. += This is called destructive interference. Interference

11/11/2015 Interference Patterns from 2 slits Intensity Distance Constructive interference Destructive interference

How could you test your prediction? What will you record? Design a table What type of graph should you use to represent your data? How could you check the reproducibility Can you work out the refractive index? Refractive index = sin i sin r

What have you learnt? Do you know what diffraction is? Can you predict how these waves would behave?