Waves Oceans 11. What causes waves? winds cause waves on the surface of the ocean (and on lakes). winds cause waves on the surface of the ocean (and on.

Slides:

Advertisements

Similar presentations

The Story Of Waves Waves On The Beach Most of the waves we see are at the beach. Most of the waves we see are at the beach.

Advertisements

Waves

Wave Action Section 13.1.

How Waves Form When you watch the surfer's wave crash onto the beach, you are seeing the last step in the process of the wave's development. The process.

Bell work Imagine you are floating in the ocean 1 km from shore, which is north of you. There is a surface current flowing east. Are you more likely to.

CH 3 Waves and Tides. Waves The wind not only drives surface currents, it causes waves.

Tsunamis!.  A tsunami is a series of ocean waves generated by sudden movement in the sea floor.  In the deep ocean, the tsunami wave may only be a few.

Chapter 21 Section 2.

Waves and Tides. Anatomy of a Wave What is a wave? -Transmission of energy through matter; matter moves back and forth or rotates, but then returns to.

Waves and Tides. Wave Characteristics Most ocean waves are energy passing through water caused by the wind Crests are the top of the waves Troughs are.

Ocean Currents Earth Science.

Tsumani’s By Jessica Scheper

Tsunamis Human responses to the changing Earth By Hassan and Muna.

Tsunamis!!. Tsunami Tsunami – Japanese word that means “harbor wave”

Chapter 21 Section 2 Review Page 530

Chapter 8 Waves and Water Dynamics

Ocean Waves wave a periodic disturbance in a solid, liquid, or gas as energy is transmitted through a medium two basic parts—a crest and a trough.

Waves, Currents, and Tides

Waves and Tides. Anatomy of a wave Wave- the transmission of energy through matter When energy moves through matter as a wave, the matter moves back and.

BY NATHAN HUNT.  A tsunami starts when a huge volume of water quickly shifted this rapid movement can happen as the result of an underwater earthquake.

Waves Tides Currents What’s the difference?.

Movement of Water in the Oceans. What are Ocean Waves? Ocean Waves are the large scale movement of energy through water molecules. The wave energy moves.

Chapter 21 Section 2 Handout

Waves n Characteristics of All Wind-generated Waves n Deep Water Waves n Shallow Water Waves n Other Water Waves.

Waves Chapter 14 Section 3 By Caroline Hollar, Hannah Greenwald, Annie Klopp, and Shannon Consolo.

By: Michael Scott. Waves Are usually associated with the constant gravitational pull of the moon and the sun. In this section, we will learn what waves.

Hurricane Ike. Natural Hazards and Disasters Chapter 5 Tsunami.

Ocean Waves and Tides Waves A Wave is a rhythmic movement that carries energy through matter or space. A Wave is a rhythmic movement that carries energy.

What causes ocean waves?

Tsunamis By Mimi.  A tsunami starts as “a large group of ocean waves caused by sudden movements deep in the ocean floor.” The waves merge in to one gigantic.

Ocean Waves Chapter 10 Oceanography.

Chapter 14 Section 2 Ocean Waves

Water and Weather. Water and Weather Chapter Seven: Oceans 7.1 Introduction to Oceans 7.2 Waves 7.3 Shallow Marine Environments 7.4 The Ocean Floor.

TSUNAMI - A Tsunami, also known as a seismic sea wave, is a series of huge water waves that can cause great devastration and loss of life when they strike.

Tides Tides The rise and fall in sea level is called a tide. The rise and fall in sea level is called a tide. Caused by a giant wave. Caused by a giant.

Tsunamis. What is a tsunami? A tsunami is a series of waves created when a body of water is displaced. Tsunamis can be caused by earthquakes, volcanic.

Environment | Medio Ambiente Natural Disasters hurricanes, tornadoes, tsunamis, volcano eruptions and earthquakes.

Wave motion. A wave is a means of transferring energy.

1958 Lituya Bay Tsunami. What is a tsunami? Tsunami is a series of water waves caused by the displacement of a large volume of a body of water, usually.

Tsunami. The name ‘tsunami’ is Japanese. It means harbor wave. Tsunamis used to be called tidal waves, but they actually have nothing to do with the tides.

Waves Transmit energy (not mass) across the ocean’s surface

Unit 2 Lesson 2 Ocean Waves

The Movement of Ocean Water

Waves Transmit energy (not mass) across the ocean’s surface

Tsunami Activity Notes – Background Information

Ch 14, sections 3-4 Waves and Tides.

Unit 2 Lesson 2 Ocean Waves

Forces of Nature: Tsunamis

Wave Action Section 13.1.

Waves, Tides, and Currents

Ocean Waves Text Book Page #

Waves in the Ocean.

Waves Chapter 14, Section 3 Bell Ringer: “You are floating on a raft in the ocean 1 km from shore, which is north of you… A surface current is flowing.

Lets Review! Handout 10 Waves

Bell work Imagine you are floating in the ocean 1 km from shore, which is north of you. There is a surface current flowing east. Are you more likely to.

The Movement of Ocean Water

Waves And Tides.

Ch 14, sections 3-4 Waves and Tides.

Waves and Tides Earth Science 6th Grade.

Waves are actually energy moving across the ocean's surface.

Chapter 14 Sec 3 Waves.

Presentation transcript:

Waves Oceans 11

What causes waves? winds cause waves on the surface of the ocean (and on lakes). winds cause waves on the surface of the ocean (and on lakes). The wind transfers some of its energy to the water, through friction between the air molecules and the water molecules. The wind transfers some of its energy to the water, through friction between the air molecules and the water molecules. Stronger winds (like storm surges) cause larger waves. Stronger winds (like storm surges) cause larger waves.

How do waves move? Waves of water do not move horizontally, they only move up and down (a wave does not represent a flow of water). Waves of water do not move horizontally, they only move up and down (a wave does not represent a flow of water). This is demonstrated by watching a floating buoy bob up and down with a wave; it does not, however, move horizontally with the wave. This is demonstrated by watching a floating buoy bob up and down with a wave; it does not, however, move horizontally with the wave.

Tsunamis Tsunamis (sometimes called tidal waves) are different from surface waves; they are usually caused by underwater earthquakes, volcanic eruptions, or landslides. Tsunamis (sometimes called tidal waves) are different from surface waves; they are usually caused by underwater earthquakes, volcanic eruptions, or landslides. Tsunamis

Causes of Tsunamis 1. underwater earthquakes 2. a volcanic eruption, volcanic eruptionvolcanic eruption 3. a sub-marine rockslide, or, more rarely, by 4. an asteroid or meteoroid crashing into in the water from space. (rare occurrence) asteroidmeteoroidasteroidmeteoroid

Tsunamis cont…. 1. Most tsunamis are caused by underwater earthquakes, but not all underwater earthquakes cause tsunamis - an earthquake has to be over about magnitude 6.75 on the Richter scale for it to cause a tsunami. Richter scale Richter scale 2. About 90 percent of all tsunamis occur in the Pacific Ocean.

The word Tsunami The word tsunami comes from the Japanese word meaning "harbor wave." The word tsunami comes from the Japanese word meaning "harbor wave."Japanese Tsunamis are sometimes incorrectly called "tidal waves" -- tsunamis are not caused by the tides (tides are caused by the gravitational force of the moon on the sea). Tsunamis are sometimes incorrectly called "tidal waves" -- tsunamis are not caused by the tides (tides are caused by the gravitational force of the moon on the sea).tides Regular waves are caused by the wind. Regular waves are caused by the wind.

The Development of a Tsunami: A tsunami starts when a huge volume of water is quickly shifted. A tsunami starts when a huge volume of water is quickly shifted. This rapid movement can happen as the result of an underwater earthquake (subduction – one plate sliding under another) This rapid movement can happen as the result of an underwater earthquake (subduction – one plate sliding under another)

The Size of a Tsunami: Tsunamis have an extremely long wavelength, hundreds of meters (wavelength = distance between the crest (top) of one wave and the crest of the next wave) Tsunamis have an extremely long wavelength, hundreds of meters (wavelength = distance between the crest (top) of one wave and the crest of the next wave) In the deep sea, a tsunami's height can be only about 1 m In the deep sea, a tsunami's height can be only about 1 m

Speed of Tsunami A tsunami can travel at well over 970 kph (as fast as a jet!!!) A tsunami can travel at well over 970 kph (as fast as a jet!!!) Regular wave = 90 km/hr (caused by wind) Regular wave = 90 km/hr (caused by wind) A tsunami wave can travel across the entire ocean in a few hours!! A tsunami wave can travel across the entire ocean in a few hours!!

When the Tsunami hits the coast As a tsunami wave approaches the coast (where the sea becomes shallow), the trough (bottom) of a wave hits the beach floor, causing the wave to slow down, to increase in height and to decrease in wavelength. As a tsunami wave approaches the coast (where the sea becomes shallow), the trough (bottom) of a wave hits the beach floor, causing the wave to slow down, to increase in height and to decrease in wavelength.