# What type of force causes tidal bulge?

## What type of force causes tidal bulge?

gravitational force
Gravity and inertia act in opposition on the Earth’s oceans, creating tidal bulges on opposite sites of the planet. On the “near” side of the Earth (the side facing the moon), the gravitational force of the moon pulls the ocean’s waters toward it, creating one bulge.

How does centrifugal force affect tides?

This inertia, or centrifugal force, causes the oceans to bulge on the opposite side facing the moon. (The extra 50 minutes is caused by the distance the moon moves each day as it orbits Earth). The sun and the tides. “Solar tides” are caused by the sun’s gravitational pull and are weaker than lunar tides.

### What is tidal bulge?

The distortion of water and earth that we call a “tidal bulge” is the result of deformation of earth and water materials at different places on earth in response to the combined gravitational effects of moon and sun.

What is the relationship between gravity and centrifugal force to high tides and low tides?

With the Earth-Moon system, gravity is like a rope that pulls or keeps the two bodies together, and centrifugal force is what keeps them apart. Because the centrifugal force is greater than the Moon’s gravitational pull, ocean water on the opposite side of the Earth bulges outward.

#### What causes tidal bulges quizlet?

The pull of the moon’s gravity on Earth’s water causes tidal bulges to form on the side closest to the moon and farthest from the moon.

What 3 things cause tides?

The tides–the daily rise and fall of the sea’s edge–are caused by the gravitational forces between the earth, the moon and the sun. Since the moon is closer to our planet than the sun, it exerts a stronger gravitational pull on us. (The sun only has 46% of the tide-generating force of the moon.)

## Why are there two high tides and two low tides in a day?

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. This occurs because the moon revolves around the Earth in the same direction that the Earth is rotating on its axis.

Where a tidal bulge occurs?

A tidal bulge occurs in the oceans on the side of the earth nearest the moon; a second tidal bulge occurs on the far side of the earth. These bulges are high tides. The areas between the tidal bulges experience low tide.

### What is a tidal bulge quizlet?

tidal bulges. The swell or crest of surface ocean water created by the tides.

Does the ocean bulge at the equator?

These differences affect gravity, being greater at the poles and lesser at the equator. With atmosphere happens the same thing. Therefore, both atmosphere and oceans have an equatorial bulge because of less gravity at very low latitudes.

#### Is the Earth’s tidal bulge caused by centrifugal force?

This tells us that it is not centrifugal force that causes Earth’s tidal bulges, though many textbooks would have you believe that, and students uncritically accept it as “common sense”. Fictitious forces are never the cause of anything. Earth’s equatorial bulge.

What is centrifugal force in tides?

Tides and centrifugal force. The centrifugal force is required only when the gravitational problem is done in a rotating reference frame. Often it is incorrectly used, even when its use is appropriate to such a rotating frame. It is a quantity necessary for accounting purposes, without any real effect on tides.

## Why is the centrifugal force always directed away from the Moon?

And, since the center-of-mass of the earth is always on the opposite side of this common center of revolution from the position of the moon, the centrifugal force produced at any point in or on the earth will always be directed away from the moon.

How does the Sun exert tidal force on Earth?

The tidal force exerted by the sun is a composite of the sun’s gravitational attraction and a centrifugal force component created by the revolution of the earth’s center-of-mass around the center-of-mass of the earth-sun system, in an exactly analogous manner to the earth-moon relationship.

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