Question

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

Explanation:

The law of conservation of energy states that energy cannot be created or destroyed, only converted from one form to another. When a light - bulb is turned on, electrical energy is converted to light and heat, which is an example of energy transformation without energy creation or destruction. A soccer ball stopping because its energy disappears violates the law. An automobile engine burning gasoline converts chemical energy mainly to mechanical energy, not just electrical energy.

Answer:

When a light bulb is turned on, electrical energy is converted to light and heat.