KS3 Coasts

What does hydraulic power mean?

• Rocks being eroded into smaller pebbles and sand

• Waves throwing rocks at the cliff

• Power of waves attacking the cliff

• Power of waves attacking animals' habitats

What does abrasion mean?

• Rocks being eroded into smaller pebbles and sand

• Waves throwing rocks at the cliff

• Power of waves attacking the cliff

• Power of waves attacking animals' habitats

What does attrition mean?

• Rocks being eroded into smaller pebbles and sand

• Waves throwing rocks at the cliff

• Power of waves attacking the cliff

• Power of waves attacking animals' habitats

Label the coastal features on the image.

a

b

c

d

beach

arch

headland

bay

Label the coastal features on the image.

a

b

c

d

cave

stump

arch

stack

What type of wave has a strong swash and weak backwash?

• Constructive

• Destructive

What type of wave has a strong backwash and weak swash?

• Constructive

• Destructive

A destructive wave has a weak ​ (a)   and a strong ​ (b)   . They are ​ in height and help ​ (c)   a beach. A constructive wave has a strong ​ (d)   and a weak ​ (e)   . They are smaller in height and help construct a beach.

• swash
• backwash
• destroy

What is this coastal management strategy?

• Sea wall

• Gabions

• Groynes

• Rock armour

What is this coastal management strategy?

• Sea wall

• Gabions

• Groynes

• Rock armour