Section 2 Properties of Mechanical Waves. Key Concepts What determines the frequency of a wave? How are frequency, wavelength, and speed related? How.

Slides:

Advertisements

Similar presentations

Mechanical Waves and Sound

Advertisements

Chapter 17: Mechanical Waves and Sound

A surfer needs to understand the properties of waves.

Properties of Mechanical Waves

Learning Goals: Define wavelength, frequency, period, and amplitude. Describe the relationship between frequency and wavelength. Explain how a wave’s energy.

KWL Chart on WAVES What I KNOW What I WANT to know What I LEARNED.

General Properties of Waves

Mechanical Waves.

Ch. 17 – Mechanical Waves & Sound

Properties of Waves Ms. T.. 4 Basic Properties of Waves O Amplitude O Wavelength O Frequency O Speed.

What determines the frequency

17-2 C. notes Frequency and period

Waves Lesson 2: Pgs

WAVES. MECHANICAL WAVES A disturbance in matter that carries evergy from one place to another Thy require matter to travel through…this is called a medium.

Chapter 17: Mechanical Waves and Sound

In a wave pool, the waves carry energy across the pool

Waves Transferring Energy. Waves: traveling disturbance that carries energy from one place to another Waves travel through water, but they do not carry.

Energy in Waves. A Wave is… Any disturbance that transmits energy through matter or space. Energy in Waves.

Waves. The Nature of Waves What is a mechanical wave?  A wave is a repeating disturbance or movement that transfers energy through matter or space 

1 Waves and Vibrations. 2 Waves are everywhere in nature Sound waves, visible light waves, radio waves, microwaves, water waves, sine waves, telephone.

1 Waves and Vibrations. 2 Waves are everywhere in nature Sound waves, visible light waves, radio waves, microwaves, water waves, sine waves, telephone.

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.

* Waves and Vibrations. * Waves are everywhere in nature Sound waves, visible light waves, radio waves, microwaves, water waves, sine waves, telephone.

WAVES Wave - a periodic disturbance that propagates energy through a medium or space, without a corresponding transfer of matter. e.g.1 sound wave (regular.

Properties of Waves 8.1. Mechanical Waves Require a medium to transfer energy from one place to another.

Essential Question: How does data collected provide evidence that the amount of energy a wave carries determines the properties of a wave?

17.2 Properties of Mechanical Waves continue notes from 17.1 in same day...

Waves and Periodic Motion What are 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.

Waves. Definitions Wave: a disturbance that transfers energy through a medium. The matter does not experience net movement, but vibrates about some rest.

Wave Properties Amplitude Wavelength Frequency Speed.

Coffaro 4/20081 Key Terms Wave- traveling disturbance of energy Longitudinal Wave- compression wave; molecules in medium are pushed back and forth parallel.

17.2 Properties of Mechanical Waves A surfer needs to understand the properties of waves.

Review of Mechanical Waves Test Wednesday!

Chapter 17 Mechanical Waves Mechanical Waves.

Wave Properties. Amplitude The distance a wave vibrates from its rest position. The distance a wave vibrates from its rest position. The greater the amplitude,

CHARACTERISTICS OF WAVES Properties of Waves. WHAT ARE THE AMPLITUDE, WAVELENGTH, FREQUENCY, AND SPEED OF A WAVE?  Waves vary greatly.  Waves can be.

Section 14.2 Wave Properties Objectives  Identify how waves transfer energy without transferring matter.  Contrast transverse and longitudinal waves.

Physical Science Waves. Mechanical Wave Mechanical Wave: Disturbance in matter that carries energy from one place to another. –Created when a source of.

Mechanical Waves.

Unit 1 Lesson 1 Waves What are waves?

Wave Properties Unit 8.4.

General Properties of Waves

Good Vibrations Slow Motion:

17.2 – Properties of Mechanical Waves

8th Grade integrated science

Chp Properties of Mechanical Waves

17.1 Mechanical Waves.

Properties of Waves Chapter 15 Section 2.

Section 2 – Properties of Waves pp

Mechanical vs. Electromagnetic Waves

Section 2 – Properties of Waves pp

Intro Question 1 A wave pulse is created by very sharply moving the free-end of a cord (or spring) to the side and back to its original position. How.

Section 2 – Properties of Waves pp

Wave Properties Learning Goals:

What are waves? A wave is a temporary disturbance that transfers energy from place to place.

Wave Period Amplitude Crest Trough Frequency Hertz Wavelength

A surfer needs to understand the properties of waves.

Waves transfer energy Wave: A disturbance that propagates

Determine the properties of waves.

Section 3-2 Properties of Waves.

Wave Properties Chapter 12.3.

Section 2 – Properties of Waves pp

Properties of waves.

Wave Properties.

Constructive interference Destructive interference Doppler effect Wave

Waves and Vibrations * *.

Introduction to Mechanical Waves

Presentation transcript:

Section 2 Properties of Mechanical Waves

Key Concepts What determines the frequency of a wave? How are frequency, wavelength, and speed related? How is the amplitude of a wave related to the wave’s energy?

There are many different kinds of Waves All waves have amplitude, wavelength, and frequency

Frequency and Period Any motion that repeats at regular time intervals is called periodic motion. The time required for one cycle, a complete motion that returns to its starting point, is called the period. Any periodic motion has a frequency, which is the number of complete cycles in a given time. Frequency is measured in cycles per second, or hertz (Hz). A wave’s frequency equals the frequency of the vibrating source producing the wave. Site

Frequency and Period Frequency = 1.0 hertz One cycle per second Rest position Frequency = 2.0 hertz Two cycles per second

Wavelength the distance between a point on one wave and the same point on the next cycle of the wave.

Wavelength Actually wavelength can be measured from any point on the wave as long as it is measured to the same point on the next wave

Frequency and Wavelength Increasing the frequency of a wave decreases its wavelength.

Wave Speed Formula: Speed = Wavelength x Frequency The speed of a wave can change if it enters a new medium or if variables such as pressure and temperature change. If you assume that waves are traveling at a constant speed, then wavelength is inversely proportional to frequency

A wave on a rope has a wavelength of 2.0 m and a frequency of 2.0 Hz. What is the speed of the wave?

A motorboat is tied to a dock with its motor running. The spinning propeller makes a surface wave in the water with a frequency of 4 Hz and a wavelength of 0.1 m. What is the speed of the wave?

What is the wavelength of an earthquake wave if it has a speed of 5 km/s and a frequency of 10 Hz?

Amplitude of a wave is the maximum displacement of the medium from its rest position. Amplitude represents the amount of energy in a wave The more energy a wave has, the greater is its amplitude.

Amplitude As energy increases, particles of the medium are moved a greater distance from the rest position Can be positive or negative

Reviewing Concepts 1. How is the vibration of the source related to a wave’s frequency? 2. How is wavelength related to frequency for waves moving at a constant speed? 3. How is the energy of a wave related to its amplitude? 4. Describe two ways you could measure the wavelength of a longitudinal wave. 5. Describe how you measure the amplitude of a transverse wave.