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Kinetic energy is the amount of energy in an object due to its motion. It is defined as the amount of work that was required to accelerate the object from rest to its current velocity. In classical Newtonian physics, kinetic energy is calcualted in the following equation.
Ek=1/2mv2
Where:
- Ek is the kinetic energy of a body;
- m is the mass of the body; and
- v is the velocity of the body.
Note that kinetic energy is always relative to the observer's frame of reference. For example, a girl holding a ball still would tell you the ball has no kinetic energy, because it is not moving - it has a velocity of zero, and according to the above equation, the kinetic energy must also be zero. Even if she were in a moving car holding the ball, she would still tell you (correctly) that the ball has no kinetic energy, because from her perspective, the ball is not moving. But from a bystander's perspective on the sidewalk, the ball (and the girl, the car, etc.) would indeed have kinetic energy, because, from the bystander's frame of reference, the ball is moving.
Wiki User
∙ 14y ago
Wiki User
∙ 12y agoThe formal definition of energy is the ability to do work.
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Is kinetic energy the same as static energy?
No, Potential Energy is the energy of an object that has the potential to move while kinetic energy is the energy of an object at motion. Potential energy is defined by Mass * Gravity(9.81ms-2) * height(In meters) Kinetic energy is defined by (1/2)*Mass*Velocity2
How is kinetic energy defined?
It is equal to one half of the mass times the velocity squared
Can objects mechanical energy be equal to its gravitational potential energy?
Yes. Mechanical energy is the sum of potential energy and kinetic energy; this includes gravitational potential energy.
Is the sum of all the energy of the molecules of an object is called the temperature of that object?
its called internal energy.. temperature (defined as the degree of measure of heat, which is a form of energy) just helps you to compare the energies of two or more systems...
Distinguish between heat and internal energy?
Heat is defined as "energy in transit owed to a difference in temperature". The "internal energy" (or intrinsic energy) is the sum of the energy of all the atoms or molecules in a given body. In gases it includes the molecules or atoms kinetic energy (translation energy), rotational energy, vibrational energy, electronic energy... Solids lack the kinetic and rotational energies. Internal energy is thermal energy. So is heat, but heat is thermal energy in motion due to a difference in temperature.
Who formally defined gravity?
Newton.
What does asters mean?
They are a less formally defined grouping of stars.
What is memory is formally defined as?
The mental processes that enable us to acquire, retain, and retrieve information
Psychology:?
Defined formally as a science which studies mental processes, experiences and behaviour in different contexts.
Energy is defined as the energy of motion.?
kinetic
Why is division simply multiplying the dividend by the reciprocal of the divisor?
That's how division is formally defined in advanced math.
Energy is defined as the capability to perform work or?
energy is defined as the ability to do....work.
What term is defined as the as the ability to do work?
*A+*energy
What is energy about?
Energy is often defined as the potential for doing work
Which of these terms is defined as the capacity to do work matter or energy?
energy
Heat is defined as?
a form of energy
Heat can be defined as the?
A fourm of energy
