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Do not enlarge. The definition of gravitational potential energy EP is EP mgh, where m is the mass of the object, g is the gravitational acceleration where the object is located, and h is the height of the object to the zero potential energy reference point. Only the work done by gravity can change the gravitational potential energy of an object, and the object is horizontally displaced by gravity at the same height to do work:
w fscos , f mg, displacement s s 0 in the direction of gravity, cos 1, so w 0, gravitational potential energy does not change.
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The magnitude of the gravitational potential energy of an object, depends on what factors?
When moving an object horizontally, does the height of the object's center of gravity change?
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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.
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Right. Because the higher it is, the greater the velocity to the ground, and the greater the velocity of the same object, the greater the kinetic energy produced, and the energy is not generated out of thin air, and the same kinetic energy is not generated out of thin air. This shows that the larger the velocity cavity macro of the same object, the greater the kinetic energy generated, which is due to.
The higher the same object is above the ground, the greater the gravity Sakura can be transformed into.
The greater the kinetic energy. So the higher the same object is above the ground, the greater the gravitational potential energy, right.
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Gravitational potential energy e p = mgh, i.e., the gravitational potential energy depends on the height of the gravitational force with respect to the zero potential energy surface of the object; Implicit refers to the fact that when the same object is at different heights, the potential energy of the bending force of the heavy foci is different;
So the answer is: yes
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The greater the mass and the higher the position of the object, the greater the ability to do work, and the more gravitational potential energy the object has.
The magnitude of the gravitational potential energy of an object is determined by 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 and the higher the position of the object, the greater the ability to do work, and the more gravitational potential energy the orange object has. And to some extent, when the altitude 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.
To judge whether an object has gravitational potential energy, the key is to see whether the object is lifted relative to a certain plane, that is, whether there is a certain height relative to this plane. If there is, then the object has a round macro with gravitational potential energy, and if it does not, then the object does not have gravitational potential energy.
Potential energy is the energy that interacting objects possess by virtue of their relative positions. The energy that an object has due to being lifted is called gravitational potential energy, which is the generalization of gravitational potential energy in special cases, and it is the energy that the object has under the action of gravity and is determined by the spatial position, and the magnitude is related to the reference point selected to determine its spatial position. The gravitational potential energy of an object at a point in space is equal to the work done by gravity when moving the object from that point to a reference point.
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1. Gravitational potential energy: The energy that an object has due to being lifted is called gravitational potential energy.
2. How much can it do: the size of the work ability that the object has.
3. Since the higher an object is lifted, the greater the ability to do work (the more work it can do), the greater the gravitational potential energy of the same object, the higher its position.
4. Mathematical relationship: e=mgh
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The position of the center of gravity generally refers to the center of gravity of an irregular object, as said upstairs, the gravitational potential energy = mgh, h can also be understood as the height of g, so the gravitational potential energy increases, and the center of gravity position increases.
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False, if the mass becomes larger, the gravitational potential energy also increases.
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Gravitational potential energy = mgh
h increases, gravitational potential energy increases.
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If you're talking about throwing an object upwards, then the kinetic energy decreases and the gravitational potential energy increases.
Because when the object moves upwards due to inertia, the direction of gravity is downward, opposite to the direction of motion of the object, so negative work is done on the object.
So the kinetic energy of the object decreases.
The gravitational potential energy is related to the height, the higher the height, the greater the redo modification potential energy.
The increased gravitational potential energy is converted by kinetic energy.
If we ignore the air resistance, the sum of kinetic energy and gravitational potential energy is fixed when only gravitational work is done. So when the kinetic energy decreases, the potential energy increases.
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Gravitational potential energy, the higher the height, the higher the mass, the greater the gravitational potential energy, the 24th floor falls down, giving a very large force to the ground, and the human body needs to bear a lot of force.
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 larger the sail collar of the Gong Sect, the more gravitational potential energy the object has.
To some extent, when the altitude 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.
When piling, the hammer is lifted high, and the hammer can be driven into the ground when it 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).
The archer bends the bow, and when he lets go, the bent bow can shoot the arrow. The compressed spring lifts the weights pressed on it when it is relaxed. Both the mega bow and the spring are able to do work due to the elastic deformation, and the energy of the object that undergoes elastic deformation is called the elastic potential energy.
The greater the elastic deformation of an object, the greater the elastic potential energy it has.
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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.
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The object falls from a high place yard mill, gravitational potential energy.
Smaller. Gravitational potential energy refers to the energy that an object has due to being lifted high, and for gravity gratitude 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 of the mode-only bond, and the more work done, so that the gravitational potential energy possessed by the object becomes larger, and its expression.
is: ep=mgh. It can be seen that when the object falls, H becomes smaller, and EP decreases.
Well, I think the upstairs [duodamo] classmate explained it incorrectly! >>>More
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