Energy can change from one form to another in different ways. This shows us the Law of Conservation of Energy. Here are some important transformations:
Mechanical to Thermal: When things rub against each other, they create heat. For example, when a car uses its brakes, it can change about 70% of its moving energy into heat.
Chemical to Mechanical: In a car engine, the energy from fuel is turned into mechanical energy that helps power the car.
Electrical to Light: In a light bulb, electrical energy changes into light energy. Incandescent bulbs are only about 10% efficient, while LED bulbs can be as much as 80% efficient.
Potential to Kinetic: When an object falls, it changes from stored energy (gravitational potential energy) to moving energy (kinetic energy).
These changes show us that energy is never lost. It simply changes from one form to another instead of being made or destroyed.
Energy can change from one form to another in different ways. This shows us the Law of Conservation of Energy. Here are some important transformations:
Mechanical to Thermal: When things rub against each other, they create heat. For example, when a car uses its brakes, it can change about 70% of its moving energy into heat.
Chemical to Mechanical: In a car engine, the energy from fuel is turned into mechanical energy that helps power the car.
Electrical to Light: In a light bulb, electrical energy changes into light energy. Incandescent bulbs are only about 10% efficient, while LED bulbs can be as much as 80% efficient.
Potential to Kinetic: When an object falls, it changes from stored energy (gravitational potential energy) to moving energy (kinetic energy).
These changes show us that energy is never lost. It simply changes from one form to another instead of being made or destroyed.