Chapter 8 Lo3

Question 1

Compare and contrast tidal stream generators and tidal barrages

Answer 1

• tidal stream generators make use of the kinetic energy of moving water to power turbines
• tidal barrages make use of the potential energy in the difference in water height between high and low tides
• tidal stream generators are much cheaper to build

Tidal barrage has more of an environmental impact

Question 2

What are two advantages of a tidal stream generator?

Answer 2

• They are cheaper to construct
• They have less environmental impact
• The turbine blades turn slowly and have less impact on marine life

Question 3

What are two advantages of a tidal stream generator?

Answer 3

• They are cheaper to construct
• They have less environmental impact
• The turbine blades turn slowly and have less impact on marine life