How is the energy of objects exchanged in free fall? Why is gravitational potential energy converted

Gravitational potential energy is converted into kinetic energy.

Such a stupid question can be asked, if I were your father, I would have to kill you!

The formula for gravitational potential energy: ep=mgh(EP is the gravitational potential energy, M is the mass, G is the gravitational acceleration of the Earth's surface, and in most cases, H is the height of the object from the reference plane).

Since both gravitation and g vary depending on distance, EP=MGH can only solve the earth's surface problem.

Definition of potential energy: When driving piles, the hammer is lifted high, and the hammer can be driven into the ground when the hammer falls. A heavy hammer is able to do work because it is lifted, and the energy possessed by the lifted object is called gravitational potential energy. The greater the mass of the object, the higher it lifts, the greater the gravitational potential energy it has.

The weighted hammer being lifted has gravitational potential energy. The greater the mass of the hammer, the higher it is lifted, and the more work done when it falls, indicating the greater the gravitational potential energy of the hammer. (Not all lifts are artificial, but the height of the rise relative to the horizontal plane is the height of the lifted).

Said the other way around.

When an object falls, the gravitational potential energy is converted into kinetic energy. Because the height of the potato decreases, the potential energy decreases, the potential energy is converted into kinetic energy, and the kinetic energy of the object increases, and the speed becomes faster.

Gravitational potential energy and kinetic energy are two different forms of energy that can be converted into each other.

Gravitational potential energy is the energy possessed by an object due to gravity, for gravitational potential energy, its magnitude is determined by the relative position of the object on the earth and the ground. The greater the mass of the object, the higher the relative position, and the more work done, thus increasing the gravitational potential energy possessed by the object.

Kinetic energy is the energy that an object has due to its mechanical motion. Kinetic energy is a scalar quantity, and there is no direction for dust picking, only size. and cannot be less than zero. Consistent with work, it can be directly added or subtracted.

Determinants

The magnitude of the gravitational potential energy of an object is determined by the magnitude of the gravitational pull of the earth on the object and the relative position of the object on the earth and the ground. The greater the mass of the object, the higher the position, and the greater the ability to do work, the more gravitational potential energy the object has.

To some extent, repentance means that when the height is constant, the greater the mass, the greater the gravitational potential energy; When the mass is constant, the higher the height, the greater the gravitational potential energy.

Yes, you can. When the height of the object decreases and the object moves in free fall, the gravitational potential energy decreases, and the kinetic energy increases when the velocity increases, and the reverse is thrown upwards, which is just the opposite. Formula mgh=.

1.Kinetic energy: The energy that an object has due to its mechanical motion.

2.Definition: The energy that an object has due to its motion, known as the kinetic energy of the object. Its size is defined as one-half of the product of the mass of the object and the square of the velocity.

3.Conclusion: Therefore, the greater the velocity of an object of the same mass, the greater its kinetic energy; The greater the mass of an object moving at the same velocity, the greater the kinetic energy it has.

4.The amount of energy stored by a particle in motion. But there is a significant error at speeds close to the speed of light. The special theory of relativity treats kinetic energy as the mass energy added when a particle moves, and the modified formula for kinetic energy is applicable to any particle below the speed of light.

Conversion of kinetic energy and gravitational potential energy.

If the friction force is not calculated, let the original height of the ball be h and the falling height be h, then the energy is conserved, and there is mgh+0=mg(h-h)+1 2mv 2

Then there is mgh=1 2mv 2 can eliminate m, that is, the velocity is only related to the drop height and not to the mass

But if there is resistance, it cannot be calculated in this way

When the mechanical energy is conserved, EK+EP e mechanical energy.

According to the law of conservation of mechanical energy, when the force other than gravity does not do work, the mechanical energy of the object (or system) is conserved, that is, the kinetic energy and the gravitational potential energy are converted into each other, and the total amount of mechanical energy remains the same.

The factors that affect the magnitude of gravitational potential energy are not only related to the height of the object, but also related to the mass of the object. The greater the mass of the object, the higher it is lifted and the greater the gravitational potential energy it has.

The gravitational potential energy is defined as the weight mg of the object multiplied by the centroid position h

For the weight m(i)g of the part marked i, the centroid position h(i), there is:

e=g m(i)*h(i)=g [ m(i)] Noting that the curly braces are the definition of the position of the center of mass, it is proven.

Summary. Kinetic energy and gravitational potential energy can be converted into each other.

In the rolling pendulum experiment, it can be seen that the rolling pendulum rotates and descends, and the faster it turns. At its lowest point, the roll turns upward, and in the ascent it turns slower and slower until it is almost back to its original position.

Then it descends and rises again, repeating the original motion. When the pendulum falls, its gravitational potential energy becomes smaller and smaller, and the kinetic energy increases, and the gravitational potential energy is converted into kinetic energy. When the pendulum rises, its kinetic energy becomes smaller and smaller, the gravitational potential energy becomes larger and larger, and the kinetic energy is converted into gravitational potential energy.

The change in altitude when the kinetic energy and gravitational potential energy of an object are equal.

Hello, the kinetic energy is e=1 2mv 2 The potential energy you are talking about should be chaotic or heavy, the bridge Wu force elimination brother potential energy w = mgh so the kinetic energy is equal to the potential energy, that is, e = w, 1 2mv 2 = mgh so h = v 2 2g

Magnitude change in gravitational potential energy The greater the mass of the object, the higher the height it is at, the greater the gravitational potential energy of the object.

Hello dear, do you want me to do the question?

Pretty much. Do you want me to analyze the topic?

I wonder why, when the gravitational potential energy is equal to the kinetic energy, it is one-half mv2

Consider using a constant force f to stop the object m, the acceleration f m moving distance is v 2 (2f m), so the force is negative and the fighting work is 1 2mv 2 f*f=1 2mv 2, so the call to touch 1 2mv 2 is the kinetic energy of the orange body. Although this is deduced from the special case of constant force, it can be shown that the same is true in general.

Why gravitational potential energy is equal to one-half of the total energy.

Kinetic energy and gravitational potential energy can be converted into each other. It can be seen in the test of the rolling pendulum that the rolling pendulum rotates and descends, and the more it turns, the faster it turns. At its lowest point, the roll turns upward, and in the ascent it turns slower and slower until it is almost back to its original position.

Then it descends and rises again, repeating the original motion. When the pendulum falls, its gravitational potential energy becomes smaller and smaller, and the kinetic energy becomes larger and larger, and the gravitational disturbance potential energy is converted into kinetic energy. When the pendulum rises, its kinetic energy becomes smaller and smaller, the gravitational potential energy becomes larger and larger, and the kinetic energy is converted into gravitational potential energy.