Option B Oceans and coasts: Coastal processes and management
15 revision questions with answers for Option B Oceans and coasts: Coastal processes and management, marked SL and HL. Read them here, or play the set as a class game on the projector. Free to host, and students join with a code.
Distance of open water over which the wind blows to generate waves?
- Wavelength
- Swell
- Wave height
- FetchRight answer
What this set covers
Waves, landforms and coastal defences make up this set. It includes fetch, constructive waves, longshore drift, spits, tombolos, wave-cut platforms, sediment cells, eustatic change, groynes, rip-rap, beach nourishment, managed retreat and ICZM.
- Common mix-up
- Students often mix up eustatic and isostatic change: eustatic change alters the volume of ocean water worldwide, while isostatic rebound is land rising after an ice sheet's weight is removed.
- Revision tip
- Label a diagram of longshore drift building a spit, then sort the management terms into hard and soft engineering and explain one choice.
All 15 questions and answers
Distance of open water over which the wind blows to generate waves?
Answer: Fetch
Low, flat breakers with a strong uprush that build up beaches?
Answer: Constructive waves
Movement of sediment along a coast by waves approaching at an angle?
Answer: Longshore drift
Water returning down the beach under gravity after a wave's uprush?
Answer: Backwash
Narrow ridge of sand or shingle extending from the land into the sea, often hooked?
Answer: Spit
Ridge of sand or shingle linking an island to the mainland?
Answer: Tombolo
Gently sloping rocky surface at the foot of a retreating cliff, exposed at low tide?
Answer: Wave-cut platform
Self-contained stretch of coast within which sand and shingle largely circulate?
Answer: Sediment cell
Worldwide rise or fall in sea level as the volume of ocean water alters?
Answer: Eustatic change
Land rising after the weight of an ice sheet has been removed?
Answer: Isostatic rebound
Timber or rock barriers built at right angles to the beach to trap drifting sediment?
Answer: Groynes
Large boulders piled at the foot of a cliff or sea wall to absorb wave energy?
Answer: Rip-rap
Soft engineering: replenishing an eroded shore with sand or shingle dredged offshore?
Answer: Beach nourishment
Allowing the sea to flood low-lying land in a controlled way, often creating salt marsh?
Answer: Managed retreat
Holistic, coordinated planning of a whole stretch of coast, balancing all its users?
Answer: ICZM
Play it as a class game
Play this set opens it in splycr, where you can host it for your class straight away. Hosting needs no account: put the room code on the projector, and students join from a phone with the code and their first name. Each question plays as multiple choice, and the three wrong options were written for that question.