Waves.

Slides:

Advertisements

Similar presentations

Ch Waves & Sound I. Characteristics of Waves  Waves  Transverse waves  Longitudinal waves  Measuring waves.

Advertisements

Waves Students will learn about waves. Waves Waves transfer energy without the transfer of mass. A wave is a vibratory disturbance that is transmitted.

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.

Chapter 14 Waves/Sound. The Nature of Waves What is a wave? A wave is a repeating disturbance or movement that transfers energy through matter or space.

What do these pictures have in common?. 2 Introduction to Waves.

Waves Have Measurable Properties

Mechanical Waves.

Waves Wave Properties. Wave Definitions  Wave Rhythmic disturbance that transfers energy  Medium Material through which a disturbance travels  Mechanical.

Ch. 17 – Mechanical Waves & Sound

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.

Year 9 – Physical Science Year 9 – Physical Science Characteristics of waves.

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.

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. What is a wave? A wave is a repeating disturbance or movement that transfers energy through matter or space.

Waves Introduction Chapter 10 Section 1 and 2 Physics Standard 4.

Chapter 11 Waves.

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

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

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.

MAY 12, 2014 Homework: Read pages (Stop at Longitudinal Wave) in Sound and Light textbook- Define bold terms. -Unit vocabulary sheet due Friday Do.

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.

What types of waves do you see?

Ch Waves Transfer Energy.

Properties of Waves.  Since the waves move back and forth objects move up and down. Imagine riding a water wave. You move up and down because the wave.

Year 1 Science 6.P.1.1. What are waves? “Moving energy” Formed when a force causes vibrations through space or matter Vibrations form wavelike disturbances.

Waves 1 Wave Basics. WAVE Disturbance that transfers energy from one place to another. Medium: __________________________________ __________________________________________.

Physical Science 8 th Grade Waves A wave is a rhythmic disturbance that transmits ENERGY through matter or space. Waves carry energy NOT matter. A wave.

Waves S8P4 - Students will explore the wave nature of sound and electromagnetic radiation. a. Identify the characteristics of electromagnetic and mechanical.

Standards I can compare and contrast the parts of a wave. ( ) I can differentiate between transverse and longitudinal waves. ( )

Wave Notes. What types of waves can you think of?

Ch Waves & Sound I. Characteristics of Waves  Waves  Transverse waves  Compressional waves  Measuring waves.

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

17.1 Mechanical Waves In a wave pool, the waves carry energy across the pool. You can see the effects of a wave's energy when the wave lifts people in.

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.

A repeating disturbance or movement that transfers energy through matter or space Example: Ocean Light sound What Are 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.

1 Recognize that all waves transfer energy. R e l a t e f r e q u e n c y & w a v e l e n g t h t o t h e e n e r g y o f d i f f e r e n t t y p e s.

Waves and Energy Transfer Surf’s Up Braaaaaaaaaaaaah.

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.

Ch. 15 – Types of Waves I. Types of Waves Mechanical waves

Physics Section 11.3 Apply the properties of waves A wave is a periodic disturbance that transfers energy by the vibration of matter, rather than the transfer.

Waves & Electromagnetic Spectrum Mrs. Hooks Unit 7.

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.

Waves and Sounds Chapter 18. Waves and Sounds  Characteristics of Waves What are waves? What are waves? Rhythmic disturbances that carry energy through.

Good Morning! Have out on your desk, “How do Waves Transfer Energy?” In your notebook, answer the following questions: 1. Name two ways you can apply force.

Waves A wave is a rhythmic disturbance that transmits ENERGY through matter or space. Waves carry energy NOT matter. A wave exists as long as it has energy.

WAVES: Class Wave A wave is a rhythmic disturbance that carries energy without carrying matter, through matter or empty space.

Properties of Waves.

WAVES WAVES & THEIR BEHAVIOR.

17.1 Mechanical 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?.

Ch Waves & Sound I. Characteristics of Waves Waves

Mechanical Waves.

What is a Wave?.

Unit 4 Lesson 1 Waves.

Ch Waves & Sound I. Characteristics of Waves Waves

Which of these show ONE full wave?

Waves I. Characteristics of Waves Waves Transverse waves

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

Unit 4 Lesson 1 Waves.

Ch Waves In General I. Characteristics of Waves Waves

Presentation transcript:

Waves

Concept Explanation Sketch Forces and waves Forces move a meduim up and down or back and forth.A wave moves forward. Direction of force Direction of wave

Definition A distubance that transfer energy from one place to another Characteristics Matter moves in place. Energy travels entire distance. Examples Water wave Sound wave Nonexample Ball rolling Water rushing Downstream WAVE

Waves transfer energy A wave is a disturbance A wave is adisturbance that transfers energy from one place to another. Mechanical waves travel through a material,called a medium, transferring energy. When a mechanical wave travels through a medium,such as water,ground,or air, the medium moves as the wave passes through it,but is not permanently moved.After the wave has passed, the medium returns to its former state.

Waves transfer energy Waves can be classified by how they move A transverse wave travels in the direction perpendicular to the disturbance that caused it.If you thrust your fist into a tub of water，waves travel out from thedisturbance along the water's surface.These waves move at right angles to the downward force of your fist﹒

Waves transfer energy A longitudinal wave travels in the same direction as the disturbance that caused it.If you lay a spring toy on its side and push sharply on one end,waves will travel through the coils along the length of the spring toy.In this example，the disturbance－the push of your hand－is in the same direction in which the wave moves down the spring toy.

Waves have measurable properties Waves have amplitude,wavelength,and frequency. A wave has repeating crests and troughs, which alternate in a wave. Wavelength is the distance from trough to trough or crest to crest. Wavelength can be measured from any part of one wave to the corresponding part on the next wave. Amplitude is either how high a wave peaks above level(at its crests)or how low it dips below level(at its troughs)﹒

Waves have measurable properties In a longitudinal wave such as in a spring toy, wavelength is the distance between compressions or rarefactions. Rarefactions are the spaces between compressions where the medium is spread out.Amplitude describes how tightly bunched the spring coils are in the wave.

Frequency is the number of wavelengths that pass a fixed point in a period of time－usually one second. Question Write down two similarities and two differences between transverse and longitudinal waves. Give one example of a transverse wave and one example of a longitudinal wave.

Similarities ： Both carry energy from one point to another Both have a wavelength Difference ： The movement in a transverse wave is at 90° to the motion while in the longitudinal, the displacement is parallel There are regions of compression and rarefaction in a longitudinal wave Example of a transverse wave : light waves Example of a longitudinal wave: Sound wave

Wave speed can be measured The formula for calculating the speed of a wave is S = λ‧f where S is speed，λis wavelength，f is frequency Ex：A wave has a speed of 3 m/s and a frequency of 6(waves)/s. What is its wavelength？

Ex：At what speed is the wave below traveling if it has a frequency of 2/s？ 1.2m Ex：An ocean wave has a wavelength of 9 m and a frequency of 0.42/s. What is the wave’s speed？