# Kinetic Energy Change in Particle: Earth vs Space Observation

• HungryChemist
In summary, the conversation discusses the change in kinetic energy of a particle when observed from two different inertial reference frames. The speakers agree that the calculation of this change would be different in different frames, and that energy is not necessarily conserved when changing frames. They also mention the concept of energy as a four-vector and its difference in different Lorentz systems.
HungryChemist
Alright, I was wondering if Change in Kinetic energy of a particle (after undergoing a constant force acting on it) would be oberserved to be the different value measured from two different inertial reference frames.

Here's one particular case...Say you're on Earth and I on a space ship. We are both observing the same particle in the space and there's a force action on the particlee. The particle displace it self through surface, therefore there's work done on the particle due to the force and therefore it will change it's kinetic energy. But, would that change in kinetic energy of the particle agree if you were to do the same calculation from the spaceship?

Energy is one component of a four-vector.
So energy and change in energy will be different in different Lorentz systems.

The answer is yes, the calculation would be different. Additionally, no one ever said that energy is conserved when changing reference frames.

## 1. What is kinetic energy change in particle?

Kinetic energy change in particle refers to the change in the energy associated with the movement of a particle. It is a measure of how much energy the particle has due to its motion.

## 2. How does kinetic energy change in particle differ between Earth and space observation?

The kinetic energy change in a particle can differ between Earth and space observation due to the difference in gravity and atmospheric conditions. On Earth, particles experience friction and air resistance, which can affect their kinetic energy. In space, where there is no atmosphere, particles can maintain a constant kinetic energy due to the lack of external forces acting on them.

## 3. How is kinetic energy change in particle measured in Earth and space observation?

In Earth observation, kinetic energy change in particle can be measured using instruments such as speedometers or by calculating the change in velocity over time. In space observation, it can be measured using instruments such as accelerometers or by calculating the change in momentum over time.

## 4. What factors can affect the kinetic energy change in particle on Earth and in space?

On Earth, factors such as surface conditions, air resistance, and gravity can affect the kinetic energy change in particles. In space, factors such as the presence of other objects, gravitational pull, and external forces can affect the kinetic energy change in particles.

## 5. How does understanding kinetic energy change in particle benefit scientific research?

Understanding kinetic energy change in particle is crucial in various fields of science, such as physics, engineering, and space exploration. It allows scientists to accurately predict the behavior and movement of particles, which is essential in designing and developing new technologies and conducting experiments. It also helps in understanding the fundamental principles of motion and energy in the universe.

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