Chemical energy stored in the body is converted to mechanical (kinetic) energy as the pump is operated (this assumes a manual pump). Next, kinetic energy coupled into the pump is converted to potential energy in the form of compressed air and a stressed ball.
it decreases
GPE
-- A ball on a shelf has gravitational potential energy with respect to the floor. -- A ball in motion has kinetic energy. -- A ball of fire has heat energy. -- A ball of trinitrotoluene has chemical energy. -- A ball of charged pith has static electric energy. -- A ball of U235 has nuclear energy.
If a juggler is holding a ball, say, the ball has Potential Energy. When the ball is dropped, the ball has Kinetic Energy.
The Ball has energy in the form of potential energy as if it was released it would fall to the ground. The pitcher uses chemical energy to move his arm and give momentum to the ball. The ball's energy is now transformed to kinetic energy as it moves through the air.
it decreases
GPE
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We lost the soccer game again.The soccer ball needs inflating.
the second one because the little friction turns to thermal energy while the first one... no energy transformations are occuring. except potential energy
When the ball hits the ground, kinetic energy is turned into potential energy and stored momentarily as the ball compresses. As the ball rebounds, the potential energy is converted back to kinetic energy. Some energy is also lost in the form of heat and air waves (sound). This continues with each bounce and due to the loss of energy, the ball gradually stops bouncing.
When the ball is positioned in your hands it has full potential energy. As you move and the ball is thrown at the basket, the potential energy is converted to kinetic energy, by the transfer of kinetic energy from your arms, to your hands, to the ball. When the ball hits the basket some of its kinetic energy was converted into potential energy and then back into kinetic energy as it hit the ground.
The inside of the ball becomes filled with the air you pump in, thus inflating the ball and turning it from a flat ball to a round one.
the second one because the little friction turns to thermal energy while the first one... no energy transformations are occuring. except potential energy
Kinetic energy is at its maximum when the velocity of the ball is greatest. This will occur immediately upon release. Air resistance will slow the ball from this point and unless the ball falls back past its original starting height, it will never achieve a velocity greater than that with which it starts.
-- A ball on a shelf has gravitational potential energy with respect to the floor. -- A ball in motion has kinetic energy. -- A ball of fire has heat energy. -- A ball of trinitrotoluene has chemical energy. -- A ball of charged pith has static electric energy. -- A ball of U235 has nuclear energy.
the reaction must occur without energy. I.e. the rolling of a ball down a hill