chemical energy from food the rider has eaten gets turne into kinetic energy as the bike is moving. Then into potential energy as the bike heads uphill. As the bike heads down potential energy turns into kinetic energy.
At the top of the hill, the boy has high potential energy due to his elevated position. As he rides down, his potential energy decreases and his kinetic energy increases, reaching its maximum at the bottom of the hill. At the bottom, his potential energy is low, while his kinetic energy, which is the energy of motion, is highest.
When the rider is at the top of the hill, her potential energy is the greatest, and her kinetic energy is the least.
The energy stored in a bicycle at the top of a hill is potential energy, which is due to its position relative to the ground. This potential energy can be converted into kinetic energy as the bike descends the hill and gains speed.
Yes, as the bicycle rolls down the hill, there is still some friction present between the wheels and the surface of the hill. This friction helps to slow down the bicycle's descent and eventually bring it to a stop.
By Anaerobic pathway of glucose break down.(Glycolysis.)
Energy can neither be created nor destroyed. It is converted to other forms of energy. There is potential energy and kinetic energy. Sitting on your bicycle on top of the hill you have no kinetic energy, only potential energy. When you ride down the hill, the potential energy is used up (you go down the hill) and it converts to kinetic energy (speed). "What happens when you stop at the bottom of the hill - wasn't the potential and kinetic energy destroyed?" No. All the potential energy was converted to kinetic energy. The kinetic energy was converted to heat through the wind resistance. So, if you had an extremely accurate thermometer, you would see the air and bicycle temperature rise as you went down the hill.
gravityGRAVITY
The energy associated with sledding down a hill is primarily kinetic energy, which is the energy of motion. As the sled moves down the hill, the potential energy stored in the sled due to its position on the hill is converted into kinetic energy as it gains speed.
As a bicycle rolls downhill, the force of gravity pulls it downward, converting potential energy to kinetic energy, causing it to accelerate. The increase in speed is a result of the gravitational force overcoming the resistance from friction and air resistance.
The skier going up the hill gains potential energy due to its height increase, which is stored energy that can be released when the skier goes back down the hill. As the skier goes down the hill, the potential energy is converted into kinetic energy, which is the energy of motion.
friction
A bicyclist riding downhill has kinetic energy, which is the energy associated with motion. As the cyclist descends, the potential energy from being at a higher elevation is converted to kinetic energy due to the increased speed of the bicycle.