Are you looking for the Kinetic Energy information for the exams? The complete details like definition, equation, formula, and units are listed on this page for the candidate’s reference purpose. Check the complete info and other Kinetic Energy details. Kinetic energy can be transferred between objects. It is converted into energy. For example, a flying squirrel may collide with a stationary chipmunk.
For Kinetic Energy, some of the squirrel’s initial kinetic energy may have been transferred into the chipmunk or converted into another form of energy. To accelerate an object, we must apply force. To apply force, we must act. When the force is applied to an object, energy is transferred, and the object moves with a new constant velocity. We call the energy transferred kinetic energy depending on the mass and velocity achieved.
Kinetic Energy
We have listed the Kinetic Energy formula and other important info below; students can check the complete info and prepare for the exam accordingly.
Kinetic Energy Formula
The kinetic energy equation is given as follows:
KE=1/2mv2
- K.E. = kinetic energy
- v = body’s velocity
- m = body’s mass.
Kinetic Energy Examples
A truck traveling on the road has more kinetic energy than a car traveling at the same speed because the mass of the truck is much greater than that of the car. A river flowing at a certain speed has kinetic energy because the water has a certain speed and mass. The kinetic energy of an asteroid falling toward Earth is vast. Due to the high mass and high speed, the aircraft’s kinetic energy is high.
Kinetic Energy Transformation
Kinetic energy is transferred between objects and transformed into other forms of energy. A yo-yo is a great example to illustrate the transformation of kinetic energy. When one begins to play with it, one begins by placing it in one hand. At this time, all the energy is stored in the ball as potential energy. Once the person leaves the yo-yo, the stored energy is transformed into kinetic energy. Once that ball reaches the bottom of the yo-yo, all the energy is converted into kinetic energy.
To calculate kinetic energy, we follow the above reasoning and begin by finding the work done by WWW, the force, and FFF in a simple example. Consider a box of mass mmm pushed a distance d along a surface by a force parallel to that surface, as we learned earlier.
W =F⋅d=m⋅a⋅d
If we recall our equations of motion, we know that we can substitute the acceleration if we know the initial and final velocities—v_\mathrm{i}v.i,v, the opening subscript, i, the ending subscript and v_\mathrm{f}vf, v, initial subscript, f, final subscript—as well as distance.
W=m⋅d⋅2dvf2−vi2
=m⋅2vf2−vi2
=21⋅m⋅vf2−21⋅m⋅vi2
So, when the total network is done on an object, the quantity ½ mv2 The initial fraction, 1, divided by 2, the final fraction, m, v, squared—which we call the kinetic energy.
Kinetic Energy: K=21⋅m⋅v2.
Alternatively, the change in kinetic energy equals the net effect on the object or system.
Wnet =ΔK
This result is known as the workforce theorem and generally applies to forces that vary in direction and magnitude. This is important in the study of the conservation of energy and conservative forces.
Kinetic Energy Types
There are five types of kinetic energy:
- Radiant
- Thermal
- Sound
- Electrical
- Mechanical
Luminous power
Radiant energy is one type of kinetic energy that is in motion traveling through a medium or space. Examples of radiant energy are:
- Ultraviolet light.
- Gamma rays.
Thermal energy
Thermal energy is called heat energy. It is generated due to the atoms’ motion when they collide. Examples of heat energy are:
- Hot springs.
- Heated swimming pools.
Sound energy
The object produces sound energy. The Sound energy travels through a medium but cannot travel in a vacuum because there are no particles to act as a medium. Examples of sound energy are:
- Tuning fork
- Drums beat
Electrical energy
Electrical energy originates from positively and negatively charged free electrons. Examples of electrical energy are:
- Lightning.
- Batteries while in use.
Mechanical Energy
Mechanical energy is called the combination of both kinetic and potential energy. Which is neither created nor destroyed but transformed from one form to another. Examples of mechanical energy are:
- The orbit of satellites around the Earth
- A moving car
Conclusion
We have provided the information for the Kinetic Energy information and other important aspects. The details were listed and mentioned. These details are enough for the exam preparation for basic points only. For deep understanding refer to any standard book for more info on Kinetic Energy.
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