UNIT 3. What is a Wave? Definition: A disturbance that transfers energy from place to place. What carries waves? A medium, a medium is the material through.

Slides:



Advertisements
Similar presentations
Waves What are waves?.
Advertisements

KWL Chart on WAVES What I KNOW What I WANT to know What I LEARNED.
IPC Notes The Nature of Waves. A wave is a repeating disturbance or movement that transfers energy through matter or space. ex) light, sound & radio.
General Properties of Waves
Waves Objective: I will understand the difference between mechanical waves and electromagnetic waves.
Waves.
What do these pictures have in common?. 2 Introduction to Waves.
Mechanical Waves.
Wave Notes.
Ch. 17 – Mechanical Waves & Sound
By Aimee Chavez. Wave: a disturbance that transfers energy from place to place. The material through which a wave travels through is called a medium.
7 th Grade – Chapter #8. What are waves? Wave- a disturbance that transfers energy from place to place. Energy- is defined as the ability to do work.
How does one differentiate between transverse and longitudinal waves?
Waves Chapters 11, 12, 13. CH 11-1 The Nature of Waves  wave: repeating disturbance or movement that transfers energy through matter or space  Figure.
Waves Lesson 2: Pgs
Energy in Waves. A Wave is… Any disturbance that transmits energy through matter or space. Energy in Waves.
What is a Wave? Sound and Light are forms of energy that travel in waves A wave is a repeating disturbance or movement that transfers energy through matter.
Wave Definition: A disturbance that transfers energy from place to place. What carries waves? Medium - the material through which a wave travels A medium.
What are waves?. Wave Definition: A disturbance that transfers energy from place to place. What carries waves? A medium, a medium is the material through.
Essential Question: How does data collected provide evidence that the amount of energy a wave carries determines the properties of a wave?
Transverse & Longitudinal Waves. Transverse Waves The definition of transverse wave is a wave moving across or perpendicular to the direction that the.
What are Waves? A wave is a disturbance that transfers energy from place to place. Energy – the ability to do work The material through which a wave travels.
Wave Properties Students will be able to Explain wave structure Contrast transverse and longitudinal waves Describe properties of a wave.
MAY 12, 2014 Homework: Read pages (Stop at Longitudinal Wave) in Sound and Light textbook- Define bold terms. -Unit vocabulary sheet due Friday Do.
Waves What are waves?. ENERGY  Disturbance that transfers ENERGY through different mediums WAVES.
What are waves? a disturbance that transfers energy from place to place. Classified as either 1. Mechanical- require a medium 2. Electromagnetic- do not.
A disturbance that transfers energy from place to place.
Energy Transfer - Waves. Waves A wave is any disturbance that transmits energy through matter or empty space. Energy can be carried away from it’s source.
Waves and Wave Properties. A wave is a disturbance that carries energy from place to place. A wave does NOT carry matter with it! It just moves the matter.
Wave Notes. What types of waves can you think of?
Properties of Waves  There are 4 basic properties  Amplitude  Wavelength  Frequency  Speed  There are 4 basic properties  Amplitude  Wavelength.
Waves What are waves?????.
What are waves? 1.Wave – A disturbance that transfers energy from place to place. Energy is the ability to do work. 2.Medium – The material through which.
Section 1 & 2: The Nature of Waves. Waves A wave is a repeating disturbance or movement that transfers energy through matter or space. A wave will only.
WAVES.
What is a Wave Waves – a disturbance that carries energy from one place to another Energy causes matter to vibrate creating most waves. The waves carry.
What are Waves? A wave is a disturbance that transfers energy from place to place. Energy – the ability to do work The material through which a wave travels.
Waves. Wave  repeating disturbance or vibration that transfers or moves energy from place to place.
Chapter 20 Sections 1- 3 What are waves?. Wave Definition: A disturbance that transfers energy from place to place. What carries waves? A medium, a medium.
CHARACTERISTICS OF WAVES Properties of Waves. WHAT ARE THE AMPLITUDE, WAVELENGTH, FREQUENCY, AND SPEED OF A WAVE?  Waves vary greatly.  Waves can be.
What are waves?. I. Waves A. Definition: A disturbance that transfers energy from place to place. 1. What carries waves? A medium, a medium is the material.
What are waves?. Wave Definition: A disturbance that transfers energy from place to place. What carries waves? A medium, a medium is the material through.
Wave Definition: A disturbance that transfers energy from place to place. A medium, a medium is the material through which a wave travels. A medium can.
What are Waves? A wave is a disturbance that transfers energy from place to place. The material through which a wave travels is called a medium. Ex: Gases.
What are waves?. Wave Definition: A _________ that ________ ________ from place to place. What carries waves? A __________, a medium is the ___________.
Mechanical Waves.
General Properties of Waves
Waves What are waves?.
Waves What are waves?.
8th Grade integrated science
17.1 Mechanical Waves.
Properties of Waves Chapter 15 Section 2.
Characteristics of Waves
ZAP! Waves.
Waves What are waves?.
Characteristics of Waves
Waves What are waves?.
Waves What are waves?.
WAVES W What are waves?.
What are waves? A wave is a temporary disturbance that transfers energy from place to place.
MT 6 LT 1 Mechanical Waves What are waves?.
15.2 Properties of waves Key concepts: What are the basic properties of waves? How is a wave’s speed related to its wavelength and frequency? Key terms:
Waves and it’s properties
Waves and their properties
Waves.
Waves Dude!.
Waves What are waves? Ms. P. IA.
Which of these show ONE full wave?
WAVES W What are waves?.
Waves What are waves?.
Presentation transcript:

UNIT 3

What is a Wave? Definition: A disturbance that transfers energy from place to place. What carries waves? A medium, a medium is the material through which a wave travels. A medium can be a gas, liquid, or solid.

Not all waves require a medium to travel. Light from the sun travels through empty space.

What causes waves? Waves are created when a source of energy causes a medium to vibrate. A vibration is a repeated back and forth or up and down motion.

Types of waves: Waves are classified according to how they move.

Transverse wave Waves that move the medium at right angles to the direction in which the waves are traveling. Transverse means across. The highest parts are called crests the lowest parts are called troughs.

Longitudinal Wave Matter vibrates in the same direction as the wave travels. Example: Slinky

Longitudinal wave The parts, where the coils are close together are called compressions, the parts where the coils are spread out are called rarefactions.

Combinations of waves Surface waves are a combination of transverse and longitudinal waves. The waves occur at the surface between water and air.

Draw a Transverse wave and label: crest & trough

Draw a Longitudinal wave: label compression & rarefaction

Basic Properties of Waves Amplitude Wavelength Frequency Speed

Amplitude Amplitude is the maximum distance the particles of the medium carrying the wave move away from their rest positions. The farther the medium moves as it vibrates the larger the amplitude of the resulting waves. The greater the amplitude the greater the amount of energy.

Amplitude of transverse waves The amplitude of a transverse wave is the maximum distance the medium moves up or down from its rest position. You can find the amplitude of a transverse wave by measuring the distance from rest to crest or rest to trough.

Amplitude of a longitudinal wave. The amplitude of a longitudinal wave is a measure of how compressed or thin the medium becomes.

Wavelength A wave travels a certain distance before it starts to repeat. The distance between two corresponding parts of a wave is its wavelength. Transverse measure from crest to crest or trough to trough. Longitudinal measure from one compression to the next.

Frequency The number of complete waves that pass a given point in a certain amount of time. AKA number of vibrations per second. Frequency measured in hertz (Hz).

Speed The speed, wavelength, and frequency of a wave are related to each other by a mathematical formula. Speed = wavelength x frequency Frequency = speed/wavelength Wavelength = speed/frequency

Speed Waves in different mediums travel at different speeds. However, in a given medium and under the same conditions the speed of the wave is constant.