Author Question: What is a disadvantage of using tidal power? a. It has high operating costs. b. It requires a ... (Read 67 times)

Caiter2013 · **on:** Aug 22, 2018

What is a disadvantage of using tidal power?
a. It has high operating costs.
b. It requires a large amount of man power.
c. It cannot sustain the world's needs.
d. It adds pollutants to the air

Question 2

Who was the first to recognize the connection of the moon's position to the tides?
a. Isaac Newton
b. Aristotle
c. Galileo
d. Pytheas

bblaney · **Reply #1 on:** Aug 22, 2018

Answer to Question 1

ANS: C
The operating costs of using tidal power are relatively low. The source of the power, the tides, is free
to use. There are no pollutants added to the atmosphere. It seems like the perfect solution to energy
deficiencies; but even if tidal stations were lined up around the world, it would not be enough.
Information can be found in the section Power Can Be Extracted from Tidal Motion

Answer to Question 2

ANS: D
Pytheas made the connection between the moon and the tides in 300 B.C. The full understanding did
not occur until Isaac Newton explained gravitation to the world. Information can be found in the
section Tides Are the Longest of All Ocean Waves.