When stopping a car what changes of eneegy take place?

Answer 1

When stopping a car, energy is transferred from one form to another. Specifically, when stopping a car, the kinetic energy of the car is converted to thermal energy. Kinetic energy is the energy of motion; the car’s kinetic energy is created from the engine’s combustion of fuel and is used to move the car forward. Thermal energy, on the other hand, is the energy of heat; when a car is stopped, the kinetic energy is converted to thermal energy as the car’s brakes and tires heat up due to friction.

This friction is created when the car’s brakes and tires create a force against the road surface to slow down the car. The car’s engine also contributes to the slowing of the car by controlling the fuel and air intake, which reduces the amount of power going to the wheels and decreases the car’s speed.

In addition to the transfer of kinetic energy to thermal energy, energy is also converted to sound energy when a car is stopped. This sound energy is created when the car’s brakes and tires make contact with the road surface, creating a sound wave that carries the energy away.

Finally, energy is also converted to gravitational potential energy when a car is stopped. This type of energy is stored in the car’s body and is released as the car begins to move again. As the car’s mass is elevated, it gains gravitational potential energy which can be used to accelerate the car forward.

Therefore, when a car is stopped, energy is transferred from kinetic energy to thermal energy, sound energy, and gravitational potential energy.

Answer 2

In contemporary vehicles, friction braking is the most frequently used braking technique. It entails applying friction to a system's moving parts in order to convert kinetic energy into thermal energy. The velocity eventually decreases to zero due to the friction force's resistance to motion and subsequent production of heat.

Answer 3

friction