Define the
following
terms with a) work
b )force of energy
d) potenital energy
e) Kinetic energy o power
Answers
Answer:
a. Work is the measure of energy transfer that occurs when an object is moved over a distance by an external force at least part of which is applied in the direction of the displacement.
b. A force is a push or a pull which is easily demonstrated and felt but energy is a slightly more abstract concept. They are measured in different units: force in Newton's and energy in Joules. When a force is applied to an object, such as a supermarket trolley, the trolley accelerates and moves forwards.
c. The energy of a body or a system with respect to the position of the body or the arrangement of the particles of the system is called the potential energy.
d. Kinetic energy is the energy an object has because of its motion.
e. Power is the rate at which work is done (or energy is transferred).
Answer:
a) work:activity involving mental or physical effort done in order to achieve a purpose or result.
b) Force of enerGy =ऊर्जा का बल=Common forms of energy include the kinetic energy of a moving object, the potential energy stored by an object's position in a force field (gravitational, electric or magnetic), the elastic energy stored by stretching solid objects, the chemical energy released when a fuel burns, the radiant energy carried by light, ...
d) the form of energy that an object gains as it is lifted.Potential energy is defined as mechanical energy, stored energy, or energy caused by its position. The energy that a ball has when perched at a top of a steep hill while it is about to roll down is an example of potential energy. YourDictionary definition and usage
e) kinetic energy power =In physics, the kinetic energy of an object is the energy that it possesses due to its motion. It is defined as the work needed to accelerate a body of a given mass from rest to its stated velocity. Having gained this energy during its acceleration, the body maintains this kinetic energy unless its speed changes.