How does gravity keep the oceans on Earth?

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 gravity hold water down?

Explanation: When you put something in water, gravity can pull the object down through the water only if an equal volume of water is allowed to go up against the force of gravity; this is called displacement. In effect gravity has to choose which it will pull down, the water or the immersed object.

Why does weight depend on gravitational force?

weight ( ) 1. The force with which an object near the Earth or another celestial body is attracted toward the center of the body by gravity. An object’s weight depends on its mass (the amount of matter it consists of) and the strength of the gravitational pull.

What is the force of gravity in the ocean?

78 m/s2 and at the North Pole it is 9.83 m/s2. In addition, there are muchsmaller, local variations in gravity due to the fact that the Earth is not uniform,meaning that different types of rocks affect the gravity field of the earth.

Can birds fly in 0 gravity?

Again, I suppose my answer to you would be: Yes, a bird can technically still fly in zero gravity. Even while everything can technically float in zero gravity, birds would be still much more viable at controlling themselves mid-air with their wings.

How does the Earth float and not fall?

Originally Answered: What is it that keeps the Earth floating in space? The gravitational pull of the sun. That causes Earth to orbit around it, it’s not so much “floating” as it is turning around and circling the sun due to how gravity works.

How does the ocean not fall off the earth?

The tilt of the Earth compared to the imaginary disk of its orbit includes its water. That water doesn’t spill away from the Earth; it’s already spilled onto and into the Earth, so it’s part of the Earth, just as the atmosphere is — the water stays here because down means toward the center of the sphere.

How are gravity mass and weight related?

The weight of an object is the force of gravity on the object and may be defined as the mass times the acceleration of gravity, w = mg. Since the weight is a force, its SI unit is the newton. Density is mass/volume.

Does gravity change in the ocean?

Gravity changes over the ocean are miniscule compared to those over land. The ocean is a fluid. It yields to pressure and spreads the effect over a vast area.

How does gravity affect sea level?

Because the Earth rotates and its mass and density vary at different locations on the planet, gravity also varies. In general, in areas of the planet where gravitational forces are stronger, the mean sea level will be higher. In areas where the Earth’s gravitational forces are weaker, the mean sea level will be lower.

Do flaps work in space?

It flaps its wings a lot to take off, it flaps its wings while it’s flying to stay in the air, and then it flaps its wings a lot when it lands to decelerate. Inside a space station full of air, the bird’s wings and tail would still work fine.