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Coasts 1- Waves

Coasts 1- Waves

Assessment

Presentation

Geography

7th Grade

Practice Problem

Easy

Created by

Aimee Cooper

Used 2+ times

FREE Resource

31 Slides • 19 Questions

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​Welcome to IGCSE Geography

​Paper 1: 40%
Content summary • River environments
Coastal environments
Hazardous environments including fieldwork from one of these topics

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​Welcome to IGCSE Geography

​Paper 2 60%
• Economic activity and energy • Rural environments • Urban environments including fieldwork from one of these topics • Global issues (Fragile environments and climate change, Globalisation and migration, Development and human welfare)

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Poll

I would like to study

Globalisation and migration,

Development and human welfare

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Open Ended

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What connects these photos. What do you think we will be learning about?

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​Lesson Objectives

​To be able to able to define coasts
To understand the factors that effect the coast
To explain the role of different types of waves

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​What is the coast?

The coast is the narrow strip of shoreline that separates the land from the sea. Land, sea and air meet at the coast, making it a constantly-changing environment. The coast is also affected by human activity - over 4 billion people worldwide now live at the coast.

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​Why study coasts?

As an island nation we have 19,491 miles of coast! So it’s important to keep up to date with our every changing inch of it!

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Labelling

Can you identify the country from the coast?

Drag labels to their correct position on the image

India

Caribbean

Norway

UK

Greece

USA

Japan

Namibia

Australia

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Open Ended

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Read through the passage and answer the following questions

  1. 1)What is the coast? – summarise in less than 20 words

  2. 2)What is the difference between onshore and offshore?

  3. 3)What does the term diverse mean?

  4. 4)Why is not one coastline the same (explain why those factors cause diversity)

  5. 5)In the passage, it describes the coast to be 3 meeting points of what areas?

  6. 6)What is the difference between the two physical processes shaping the landforms?

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Open Ended

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Why are waves important to the coast?

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Drag and Drop

Waves are caused when the wind blows over
, transferring some of its
.
with the sea water causes
to form and these develop into waves as they reach
.
Drag these tiles and drop them in the correct blank above
the sea
energy
ripples
Friction
the coast
the sand
heat
currents
tides
the river

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​What causes waves?

Waves are caused when the wind blows over the sea, transferring some of its energy. Friction with the sea water causes ripples to form and these develop into waves as they reach the coast.

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Open Ended

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What factors affect the size of the waves?

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Match

Match the following

Fetch

Wind duration

Wind speed

The distance the wave travels over water

How long the wind has blown for

How fast the wind is travelling

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Open Ended

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1) Which wind would produce the biggest wave? Why?

2) Which wind would produce the smallest wave? Why?

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Match

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Match the following

trough

wave period

wave frequency

wave height

crest

lowest point of a wave

time taken for one complete wave cycle

number of wave cycles per second

vertical distance between a wave's crest and trough

highest point of a wave

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Open Ended

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What will happen when a wave meets the shore?

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Open Ended

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Finish the sentence….

Friction between the prevailing wind and the sea causes the water to move in the direction of the wind. The wave now moves in a ……

Follow these key words to help you structure your answer:

Circular motion, friction with beach, base of wave, slow, top of wave, fast, elliptical motion, break

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Open Ended

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Imagine you were sat on this beach. 

What would the waves be doing and what would it sound like?

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Open Ended

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Describe the differences between the waves on the left and on the right.

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​Types of waves

We are going to study two different types of wave

Constructive waves

Destructive waves

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Draw

Draw a quick sketch of a constructive and a destructive wave.

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Drag and Drop

The swash of a wave is the
movement up the beach and the
is the movement of water back to the sea. If a wave has a stronger
than backwash, it is called a constructive wave. If a wave has a stronger backwash than swash it is called a
wave.

Constructive waves
material, whereas destructive waves remove material from the beach.
Drag these tiles and drop them in the correct blank above
forward
backwash
swash
destructive
deposit
backward
erosive
depositing
constructive
retreating

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​Answers

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Categorize

Options (15)

They are formed by distant storms which can be 100s of km away

These waves surge up the beach with a stronger swash

The waves are well spaced apart and are less powerful when they reach the coast.

low energy

They rear up to form towering waves before crashing down onto the beach

They destroy the beach

High energy

There is little forward movement when this type of wave breaks but there is a powerful backwash

They carry large amounts of sediment and ‘construct’ the beach

waves are formed by local storms close to the coast

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This wave drags material away from the beach, eroding it (wearing it away)

They have a weak swash as little material is left behind on the beach

They have a strong swash which pushed material up the beach.

Organise these options into the right categories

Constructive Waves
Destructive Waves

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Open Ended

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Compare the characteristics of constructive and destructive waves (4 marks)

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Match

Match the following

What is the fetch of a wave?

Water breaking up onto the beach is called the…

Water flowing back to the sea is called the…

Which type of wave is generally higher?

What type of waves has a more powerful swash than backwash?

The distance over water the wind travels

Swash

Backwash

Destructive

Constructive

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​Lesson Objectives

​To be able to able to define coasts
To understand the factors that effect the coast
To explain the role of different types of waves

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​Homework

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​Welcome to IGCSE Geography

​Paper 1: 40%
Content summary • River environments
Coastal environments
Hazardous environments including fieldwork from one of these topics

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