Reviewing Main Ideas The Nature of Waves

Slides:

Advertisements

Similar presentations

Chapter 10 Waves.

Advertisements

Chapter 14 Waves.

Unit 7 Waves Chapter 11 Pages

Waves Chapter 8 Waves.

Chapter 7 Section 1: What do you think of when we say waves?

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

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.

Mechanical Waves.

WAVES Definition: A traveling disturbance that carries energy through matter and space Waves transfer energy without transferring matter. Waves are produced.

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. What is a wave?  Repeating disturbance that transfers energy through matter or space  Waves in water  Sound  Light  When traveling through.

Year 9 – Physical Science Year 9 – Physical Science Characteristics of 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 

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

WAVE Basics Chapters 15.

Waves Waves as energy Types of waves What exactly is a wave? Definition: A wave is any disturbance that transmits energy through matter or space Waves.

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

WAVES. The Nature of Waves A. Wave - a repeating disturbance or movement that transfers energy through matter or space. 1. Molecules pass energy on to.

Chapter 11 Waves.

Waves Chapter 10. The Nature of Waves wave: repeating disturbance or movement that transfers energy through matter or space -examples: light, ocean, sound,

The Nature and Properties of Waves Section 11.1 & 11.2.

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

Waves Waves as energy Waves as energy Types of waves Types of waves Parts of a wave Parts of a wave Movement of waves Movement of waves Properties of.

Chapter 9: Introduction to Waves

Divide Into groups of 3-4. You will need 1 person to write your answer on the white board, and 1 person to keep track of the scores using paper/pencil.

Wave Characteristics and Speed. a traveling disturbance that carries energy through matter or space matter moves horizontally or vertically just a little,

WAVES & SOUND SPECTRUM WAVE TYPES BENDING SOUND RANDOM Q $100 Q $200 Q $300 Q $400 Q $500 Q $100 Q $200 Q $300 Q $400 Q $500 Final Jeopardy.

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.

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 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.

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

What is a wave? Waves are rhythmic disturbances that carry energy through matter or space A medium is the material through which a wave travels.

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.

Chapter 20 Waves.

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

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

10 Chapter 10: Waves Unit 3: Energy On the Move Table of Contents : The Behavior of WavesThe Behavior of Waves 10.1: The Nature of Waves 10.2:

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

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

Chapter 17 Mechanical Waves Mechanical Waves.

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.

Waves & Electromagnetic Spectrum Mrs. Hooks Unit 7.

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

Chapter 15 – Characteristic of Waves Learn the language of waves Learn the language of waves Wave – a disturbance that transfers energy from place to place.

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

Lesson 2 Wave Properties Lesson 3 Wave Interactions Chapter Wrap-Up

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.

Chapter 14 and 15.

Waves What are waves?.

Blue Ridge Middle School 8th Earth Science Mrs.Bright

Chapter 1 – Waves 1.1 What are Waves?.

WAVES 8th Grade Science.

Chapter 11 Waves.

Wave Properties Learning Goals:

Mechanical Waves.

Chapter 13 Waves and Sound.

Unit 7 Waves Chapter 11 Pages

Chapter 13 Waves and Sound.

1 2 3 Waves A wave transfers energy

Introduction to Waves.

“Waves” Vocabulary Quiz

Presentation transcript:

Reviewing Main Ideas The Nature of Waves Waves are rhythmic disturbances that transfer energy through matter or space. Waves transfer only energy, not matter. Mechanical waves need matter to travel through. Mechanical waves can be longitudinal or transverse.

Reviewing Main Ideas The Nature of Waves When a transverse wave travels through a medium, that matter that makes up the medium moves at right angles to the direction that the wave travels. When a longitudinal wave travels through a medium, matter moves back and forth along the same direction as the wave travels.

Reviewing Main Ideas Wave Properties The movement of high points in a medium called crests and low points called troughs forms a transverse wave. The movement of more-dense regions called compressions and less-dense regions called rarefactions forms a longitudinal wave.

Reviewing Main Ideas Wave Properties Transverse and longitudinal waves can be described by their wavelengths, frequencies, periods, and amplitudes. As frequency increases, wavelength always decreases. The greater a wave’s amplitude is, the greater the disturbance the wave causes. A wave’s velocity can be calculated by multiplying its frequency times its wavelength.

Reviewing Main Ideas The Behavior of Waves For all waves, the angle of incidence equals the angle of reflection. A wave is bent, or refracted, when it changes speed as it enters a new medium. When two or more waves overlap, they combine to form a new wave. This process is called interference.

Chapter Review Question 1 What is a transverse wave?

Chapter Review Answer A transverse wave is one in which matter in the medium moves back and forth at right angles to the direction that the wave travels. A water wave is a transverse wave.

Chapter Review Question 2 In a __________, the matter that makes up the medium moves back and forth along the same direction that the wave travels. Answer The answer is longitudinal wave, also known as a compressional wave.

Chapter Review Question 3 As the frequency of a wave increases, its wavelength __________.

Chapter Review Answer As frequency increases, wavelength decreases.

Chapter Review Question 4 Which of the following statements is correct? A. The smaller a wave’s amplitude is, the greater the disturbance from the wave. B. The greater the wave’s amplitude is, the greater the disturbance from the wave.

Chapter Review C. The amplitude of any transverse wave is the distance from the crest to the trough of the wave. D. The amplitude of a transverse wave is the distance from one wave crest to the next wave crest.

Chapter Review Answer The answer is B. Amplitude is half the vertical distance between a crest and a trough.

Chapter Review Question 5 What is occurring in this diagram?

Chapter Review Answer This diagram represents wave interference. When two or more waves overlap and combine to form a new wave, the process is called interference.

Standardized Test Practice Question 1 Which type of wave is represented here? A. longitudinal B. electromagnetic C. seismic D. transverse

Standardized Test Practice Answer The answer is A. The wave travels horizontally along the spring, in the same direction that the coils move.

Standardized Test Practice Question 2 What is the distance from the rest position to the crest in the diagram called? A. compression B. wavelength C. amplitude D. frequency

Standardized Test Practice Answer The answer is C. The distance from the rest position to the crest or from the trough to the rest position is the amplitude.

Standardized Test Practice Question 3 Which is represented by area A? A. compression B. crest C. rarefaction D. trough

Standardized Test Practice Answer The answer is C. A rarefaction is the less-dense region of a longitudinal wave.

Standardized Test Practice Question 4 What is the speed of a wave that has a wavelength of 5.0 m and a frequency of 2 Hz? A. 5.5 m/s B. 5.0 m/s C. 10 m/s D. 2.5 m/s

Standardized Test Practice Answer The answer is C. Wave speed is equal to the frequency multiplied by wavelength.

Standardized Test Practice Question 5 Which would you predict will happen if the flashlight is submerged and the beam directed upward?

Standardized Test Practice A. The light waves would slow down and bend away from the normal. B. The light waves would speed up and bend away from the normal.

Standardized Test Practice C. The light waves would slow down and bend toward the normal. D. The light waves would speed up and bend toward the normal.

Standardized Test Practice Answer The answer is B. Light waves travel slower in water than in air, so if the flashlight were submerged and directed upward, the light waves speed up and bend away from the normal.