What is the most accurate definition for kenitic energy?

Question

I need the answer for my semester test study guide.

Answer 1

Kinetic energy is the energy of motion. An object which has motion - whether it be vertical or horizontal motion - has kinetic energy. There are many forms of kinetic energy - vibrational (the energy due to vibrational motion), rotational (the energy due to rotational motion), and translational (the energy due to motion from one location to another). To keep matters simple, we will focus upon translational kinetic energy. The amount of translational kinetic energy (from here on, the phrase kinetic energy will refer to translational kinetic energy) which an object has depends upon two variables: the mass (m) of the object and the speed (v) of the object. The following equation is used to represent the kinetic energy (KE) of an object.

KE = 1/2mv^2

where m = mass of object

v = speed of object

This equation reveals that the kinetic energy of an object is directly proportional to the square of its speed. That means that for a twofold increase in speed, the kinetic energy will increase by a factor of four; for a threefold increase in speed, the kinetic energy will increase by a factor of nine; and for a fourfold increase in speed, the kinetic energy will increase by a factor of sixteen. The kinetic energy is dependent upon the square of the speed. As it is often said, an equation is not merely a recipe for algebraic problem-solving, but also a guide to thinking about the relationship between quantities.

Kinetic energy is a scalar quantity; it does not have a direction. Unlike velocity, acceleration, force, and momentum, the kinetic energy of an object is completely described by magnitude alone. Like work and potential energy, the standard metric units of measurement for kinetic energy is the Joule. As might be implied by the above equation, 1 Joule is equivalent to 1 kg*(m/s)^2.

Answer 2

My context at the moment is that I am an ex Jw with children at that critical stage in their development. Blessedps said very true and disturbing things that are true for witnesses whether it be fifty years ago, in Africa, or in America. My suggestion would be that Jws would have schools for their children, where such issues do not arise. A Jw child grows up lonely. To be surrounded by the children of other Jws will help. This is an issue that is not addressed, I believe. Jw marriages last, evidently longer than the norm, why then do so many youngsters leave their religion? What happens to them once they have left, as the insular upbringing leaves them ill equipped for life outside Jwism. I have no gripe with anyone's religion. But I know from personal experience, how difficult it is to socially interact as a former Jw, because during your formative years, everything non Jw is "worldly". Good question, thank you.

Answer 3

You have this in the wrong category: it should be physics.

Anyway, kinetic energy is that which is associated with or by virtue of movement.

A ball which is held on an incline, has totally potential energy, but as soon as it starts to roll, it has total kinetic energy.
Just before a tennis player serves, the racquet is drawn back (kinetic), comes to a momentary pause (potential) and then goes into motion again (kinetic).

Answer 4

the energy possesed by the the body by the virtue of its motion is called as kinetic energy.
its possesed by all bodies in motion.
even the electrons in an atom,a ball in motion etc..have kinetic energy.
all micro and macro things in motion posses kinetic energy.
also, KE = 1/2 mv^2, PE=mgh u use these relation when work energy theorem is put to use.
hope this helps

Answer 5

Kenetic Energy is the energy by virtue of the motion of a object. It is defined as the work needed to accelerte a body from rest to its current velocity.

Click on the URL below for additional information concerning Kenetic energy

en.wikipedia.org/wiki/Kinetic_energy

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Answer 6

kinetic energy-defined as energy in motion. (i.e) a rock has potential energy when it is just sitting there. the moment i pick that rock up and i throw it across the room then while moving the rock now has kinetic energy.

Answer 7

Energy in action....a rock falling from a cliff.....potential energy is a rock sitting on the edge of a cliff

Answer 8

It is the energy contained in a mass in, and due to the motion.

Answer 9

energy possessed by a body by virtue of its motion

Answer 10

energy in motion. that really all
that means.. funny/ i just had a
test over that.