Question

which statement is an example of the law of conservation of energy? a soccer ball eventually stops because its energy disappears. an automobile engine burns gasoline to converts its chemical energy to electrical energy. when a light bulb is turned on, electrical energy is converted to light and heat.

Explanation:

The law of conservation of energy states that energy cannot be created or destroyed, only converted from one form to another. In the case of an automobile engine burning gasoline, chemical energy in gasoline is converted to mechanical and other forms of energy. When a light - bulb is turned on, electrical energy is converted to light and heat energy. These are examples of energy conversion which follow the law of conservation of energy. The statement about the soccer ball stopping because its energy disappears is incorrect as energy is just dissipated (e.g., through friction) rather than disappearing.

Answer:

An automobile engine burns gasoline to converts its chemical energy to electrical energy. When a light - bulb is turned on, electrical energy is converted to light and heat.