Physics, asked by laiba30786, 19 days ago

Define potential energy and kinetic energy with examples.​

Answers

Answered by tajit9914
1

Answer:

difine kinetic and potential energy

Explanation:

1) .kinectic Energy: KInetic energy is the energy possessed by the virtue of motion of a body. It is given by:

Kinetic energy K.E=mv2²/2

where, m = mass of body

v = velocity of body.

For example, Earth revolving around the sun, you walking down the street etc.

Potential Energy is the energy possessed by an object at rest by virtue of its position.

2). potential energy:Potential energy P.E=m×g×H

where, m = mass of body

H = height at which body is kept

g = acceleration due to gravity = 9.8m/s2.

For example, a ball kept at a certain height.

Answered by presentmoment
1

Potential Energy is the energy stored that depends upon the relative position of various parts of a system.

Potential energy, P.E = m×g×H

where, m = mass of body

            H = height at which body is kept

            g = acceleration due to gravity =  9.8 m/s^{2}

For example: Water that is behind a dam.

Explanation:

  • The stored potential energy that is converted to electrical energy in hydropower plants.
  • The dams blocks the natural flow of water and instead make it flow slowly through the turbines of the power plant.
  • To have sufficient electricity, there must be a sufficient amount of supply of water in the dam.
  • By increasing the height of the dam the potential energy stored in the dam is also high.

Kinetic energy is the energy that an object or a particle has by reason of its motion of a body.

Kinetic Energy,  K.E = \frac{1}{2} mv^{2}

where, m = mass of body

            v = velocity of body

For example: A bullet fired from a gun has very high kinetic energy.

Explanation:

  • When the body has higher velocity, the stored kinetic energy increases.
  • when the bullet is shot from the gun, it also has more velocity.
  • Therefore, this kinetic energy is possessed in the bullet discharged gun.
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