GENERAL KNOWLEDGE

GK

THE UNIVERSE

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Where do Earth’s oceans bulge in response to the Moon’s gravitational attraction to produce tides?
A
The side facing the moon..
B
The sides at right angles to the moon.
C
The side opposite the moon.
D
The sides facing and opposite the moon.
Explanation: 

Detailed explanation-1: -The Moon and Earth exert a gravitational pull on each other. On Earth, the Moon’s gravitational pull causes the oceans to bulge out on both the side closest to the Moon and the side farthest from the Moon. These bulges create high tides.

Detailed explanation-2: -Why is there a tidal bulge on the opposite side of the Earth from the Moon? The gravitational force from the Moon is stronger on the near side, but the pull of the Earth on the water is stronger on the far side. The far side of the Earth receives a weaker pull from the Moon, and accelerates less than the near side.

Detailed explanation-3: -Because the gravitational pull of the moon is weaker on the far side of the Earth, inertia wins, the ocean bulges out and high tide occurs. As the Earth spins, different areas of the planet face the moon, and this rotation causes the tides to cycle around the planet.

Detailed explanation-4: -The Oceans Bulge The overall effect of these tidal forces is to “squeeze” the oceans, and produce two tidal bulges on opposite sides of the Earth-one facing the Moon and a slightly smaller one facing away from the Moon (see illustration).

There is 1 question to complete.