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Potential energy decreases while kinetic energy increases as a car goes down a hill without braking.

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13y ago
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12y ago

An object's potential energy doesn't depend on its speed. You can do anything

you like with the object's speed, and it has no effect on potential energy.

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10y ago

As the potential energy of a falling (or rolling) object turns into kinetic energy, part of that energy is almost immediately dissipated by friction - converting it mainly into heat.

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11y ago

The potential energy will double too.

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14y ago

588,000 J

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Q: What happens to potential energy if speed doubles?
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When does a coaster have a large amount of Kinetic Energy and when does it have a large amount of Potential Energy?

The coaster have a large amount of potential energy when it gain height, kinetic energy when it gain speed instead.


What happens to the kinetic energy when you increase the speed but keep the mass constant?

the speed will make the kinetic energy smaller.


Explain how the maximum height is related to the maximum potential energy?

This question makes sense in the context of something like a pendulum. At the top of its swing, a pendulum is at maximum height, is not moving and so has zero kinetic energy, and has maximum potential energy since all its energy is potential. As it falls, it gradually moves with increasing speed, so its potential energy is being converted to kinetic energy. At the bottom of the swing, it is moving at maximum speed, and all its energy is kinetic, none is potential, Then it starts to move upwards again, and its kinetic energy is gradually converted back to potential energy.


How does a roller coaster convert potential energy to kinetic energy and then back to potential energy again and again?

So the potential energy is the energy in the car at the top of the first slope. It changes into kinetic energy (Speed with mass) as it rolls down the hill. Then the electric motor winds it back up the hill, putting potential energy in the system again.


What would be the skaters speed if all the potential energy could be converted into kinetic energy?

Clearly, that depends on the amount of potential energy. If given the height, calculate the potential energy with the formula for gravitational potential energy (PE = mgh). If mass is not given, you can assume any mass (it doesn't affect the result), or use a variable "m". Then, assuming it gets converted to kinetic energy, use the formula for kinetic energy (KE = (1/2)mv2), replace the KE with the energy you calculated before, and solve for v (the speed).

Related questions

As speed increases what happens to potential energy?

Potential energy is unrelated to speed.


What happens to potential energy when the speed is increased?

Potential energy is not affected by speed.


What happens to the potential energy as the kinetic of an object increase?

An object's potential energy doesn't depend on its speed. You can do anything you like with the object's speed, and it has no effect on potential energy.


What happens to an object's kinetic energy when its speed doubles?

-It increases


Does speed affect gravitational potential energy of an object?

Does speed 'effect' the gravitational potential energy of an object? No, but gravitational potential energy can be converted into kinetic energy - so the gravitational potential energy can effect the speed. Ep = mgh Energy Potential = mass * 9.81 (gravity) * height Speed / Velocity is absent from that equation.


How does increasing speed affect potential energy?

Increasing the speed will increase the KINETIC energy, not the potential energy. Of course, the potential energy may eventually be converted into kinetic energy, for example if the object moves upwards.


Does something have grater speed when it has more potential energy or less?

It can be a little complicated but I'll do my best to explain.Quick Vocab: potential energy - the stored energy in an object because of its position, shape, or condition. Kinetic energy - the energy of an object due to its motion. The more potential energy an object has the more Kinetic energy it will have. Basically when the object is moved the potential energy is released and becomes kinetic energy. As the kinetic energy (speed) increases the Potential energy decreases.So yes, when the potential energy decreases the speed increases.


What happens to potential energy when rock falls?

When the rock is high up but has not been dropped yet, it has a lot of gravitational potential energy because of its position. PE = (mass) x (G) x (height) After it is dropped, the lower it goes, the less potential energy it has. That bit of missing potential energy has become the kinetic energy that it now has on account of its speed of descent. KE = 1/2 (mass) x (speed)2


What are characteristics of speed?

potential and kinetic energy


What happens to the gravitational energy of an object as it gets higher in a gravitational field?

-- If the velocity is horizontal, then gravitational potential energy doesn't change. -- If velocity is vertical and upward, gravitational potential energy increases at a rate proportional to the speed. -- If velocity is vertical and downward, gravitational potential energy decreases at a rate proportional to speed.


What An Object falls towards the ground what Happens to the potential energy of the Object?

As an object falls from a higher level to a lower level, the gravitational potential energy that it had at the higher level changes to kinetic energy. As more and more potential energy changes to more and more kinetic energy, the increase of kinetic energy shows up in the form of greater speed.


Is it possible for a ball to also have potential energy as it is rolling?

Yes, if it is rolling at a constant speed it has potential energy.