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Gravity

One of the four fundamental interactions, gravity is responsible for the fact that any objects with mass attract one another. According to general relativity, it is a space time curvature, but according to quantum mechanics it is the result of exchanges of virtual gravitons.

4,784 Questions

What is a type of force?

One type of force is gravity, which is the force that pulls objects toward each other. This force is responsible for keeping planets in their orbits around the sun and objects on Earth grounded.

When a bus take a turn passengers are thrown away from the centre of there curved path. why?

Due to inertia, the passengers - and anything else in the bus - have a tendency to continue moving in a straight line. Newton's Second Law describes how a force is required to accelerate the passengers, which means (roughly), to change their velocity. In this case, the direction. The bus needs to push the passengers INWARD to accelerate them.

What happens to the gravitational force between two objects reduced?

If the distance between two objects is increased, the gravitational force between them is reduced. This is because gravitational force decreases with distance following the inverse square law, which states that the force is inversely proportional to the square of the distance between the objects.

How can gravity cause plates to move?

Gravity can cause the plates of Earth's crust to move through the process of plate tectonics. The force of gravity acting on the dense oceanic plates causes them to sink into the mantle at subduction zones, while the less dense continental plates can be pushed apart or pulled together along plate boundaries. This movement leads to the formation of features like mountains, earthquakes, and volcanic activity.

When an object is thrown up the force of gravity?

When an object is thrown up, the force of gravity acts on it in the opposite direction to its motion. This force causes the object to slow down and eventually come to a stop before falling back to the ground.

What is it called when object changes when the pull of gravity changes?

Not quite sure what you mean; the pull of gravity will only change if either (a) the mass of either of the two interacting objects changes, or (b) the distance changes.

What is the net force of gravity?

The net force of gravity is the overall force exerted on an object due to gravity, taking into account any other forces acting on the object. It is typically calculated using the formula F = G(Mm/r^2), where F is the force, G is the gravitational constant, M and m are the masses of the two objects, and r is the distance between them.

What is a pull of gravity on a object?

The pull of gravity on any given object is of course the objects weight. The acceleration an object undergoes while falling due to gravity's pull is approximately 9.8 m/s/s. (meters per second per second)

How does gravity affect mousetrap cars?

Gravity plays a significant role in mousetrap cars by providing the force necessary to move the vehicle forward. When the mousetrap is released, the potential energy stored in the spring is converted to kinetic energy, which powers the car forward. Gravity helps the car maintain traction with the ground, enabling it to move efficiently and steadily.

What is the first step to finding a triangles center of gravity?

The first step to finding a triangle's center of gravity is to calculate the average of the x-coordinates and y-coordinates of the triangle's vertices. This will give you the coordinates of the centroid, which is the point where the center of gravity lies.

How much does the earth's gravity cause on an object to accelerate?

Assuming other forces, and mainly air resistance, can be ignored: about 9.8 meters per second squared. This means the same as 9.8 (meters/second) / second; so, every second, the velocity will change by 9.8 meters per second.

Is friction caused by gravity?

No, friction is not caused by gravity. Friction is a force that opposes motion when two surfaces are in contact and moving relative to each other. Gravity is a force that pulls objects toward each other due to their mass.

Explain why we do not sink into the earth although gravity is pushing us down?

We do not sink into the Earth because the ground beneath us exerts an equal and opposite force, called the normal force, that counteracts gravity. This balance of forces keeps us from sinking further into the Earth's surface.

What causes the fluid to move against gravity in the osmometer?

The fluid moves against gravity in an osmometer due to the process of osmosis. Osmosis is the movement of water across a semi-permeable membrane from regions of low solute concentration to regions of high solute concentration, which generates a pressure that pushes the fluid up against gravity inside the osmometer tube.

What can gravity destroy?

Gravity itself does not destroy things, but it can cause objects to fall or collide with each other, leading to damage or destruction. For example, gravity can cause landslides, rockfalls, or buildings to collapse if they are not structurally sound.

How does size of an object impact gravity?

The size of an object does not impact gravity directly. Gravity is determined by the mass of an object and the distance between objects. The larger the mass of an object, the stronger its gravitational pull will be on other objects.

Why are sunlight and gravity not considered matter?

Sunlight and gravity are not considered matter because they do not have mass or occupy space like typical matter. Sunlight consists of photons, which are massless particles, and gravity is a force that acts between objects with mass, rather than being a physical substance itself.

What process relies the most on gravity?

The process that relies the most on gravity is sedimentation, where particles in a fluid settle at the bottom due to the force of gravity. This is commonly seen in processes like water treatment, where solids are allowed to settle out of the water.

Does gravity falls exist?

"Gravity Falls" is a popular animated television series created by Alex Hirsch that aired on Disney Channel and Disney XD. The show follows the adventures of twins Dipper and Mabel Pines during their summer in the mysterious town of Gravity Falls, Oregon. While the town itself is fictional, the show has a dedicated fan base and is known for its humor, mystery, and unique storytelling.

How do you calculate counter weight of gravity drum of belt conveyor?

To calculate the counter weight of a gravity drum on a belt conveyor, you need to consider the weight of the belt, the weight of the gravity drum, and the material being transported. The counter weight should be equal to the total weight being supported by the gravity drum to maintain balance and prevent slippage or excessive tension on the belt. It is recommended to consult with a conveyor manufacturer or engineer for the specific calculations based on the conveyor design and operating conditions.

Does gravity move water down the water table?

Gravity does not directly move water within the water table. The movement of water in the water table is primarily influenced by factors such as porosity of the soil and the presence of pressure gradients. Gravity does play a role in pulling water downward through the soil and into the groundwater system.

What is masses effect on gravity?

Mass has a direct effect on gravity - the more massive an object is, the stronger its gravitational pull. This means that objects with larger masses will attract other objects with greater force. The force of gravity between two objects is directly proportional to the product of their masses.

Is gravity both an attractive and repelling force?

Gravity is an attractive force that pulls objects towards each other. It is not a repelling force.

When the mass of one object increases by a factor of 2 the force of gravity increase by a factor of?

When the mass of one object increases by a factor of 2, the force of gravity between that object and another object will also increase by a factor of 2. This relationship is described by Newton's law of universal gravitation, which states that the force of gravity is directly proportional to the product of the masses and inversely proportional to the square of the distance between the centers of the two objects.