SOLAR SYSTEM

UNIVERSE

SOLAR SYSTEM FORMATION

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
What are tides?
A
Daily changes in ocean water due to the gravitational pull of the moon and sun on Earth.
B
Daily push of the Earth on the ocean water.
C
Daily changes in sea level due to the gravitational pull of weather patterns over Earth.
D
Daily changes in ocean water due to how the planets line up in the solar system.
Explanation: 

Detailed explanation-1: -Most tides are semidiurnal, which means they take place twice a day. For example, when an area covered by the ocean faces the moon, the moon’s gravitational force on the water causes a high high tide . As the Earth rotates, that area moves away from the moon’s influence and the tide ebbs.

Detailed explanation-2: -Tides are the rise and fall of sea levels caused by the combined effects of the gravitational forces exerted by the Moon (and to a much lesser extent, the Sun) and are also caused by the Earth and Moon orbiting one another.

Detailed explanation-3: -When the sun, moon, and Earth are in alignment (at the time of the new or full moon), the solar tide has an additive effect on the lunar tide, creating extra-high high tides, and very low, low tides-both commonly called spring tides.

Detailed explanation-4: -Because the Earth rotates through two tidal “bulges” every lunar day, coastal areas experience two high and two low tides every 24 hours and 50 minutes. High tides occur 12 hours and 25 minutes apart. It takes six hours and 12.5 minutes for the water at the shore to go from high to low, or from low to high.

Detailed explanation-5: -They are caused by the combined effects of the gravitational forces exerted by the Moon and the Sun, and the rotation of the Earth.

Detailed explanation-6: -Answer: The rhythmic rise and fall of ocean water, twice in a day, is called a tide. Tides are caused by the gravitational force exerted by the sun and the moon on the earth’s surface.

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