Which statement is an example of the law of conservation of energy?
1- A soccer ball eventually stops because its energy disappears.
2- When a light bulb is turned on, electrical energy is converted to light and heat.
3- An automobile engine burns gasoline to converts its chemical energy to electrical energy
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Explanation:
When a light bulb is turned on, electrical energy is converted to light and heat.
Answer:
option 2 is correct
because energy is converted to light and heat energy ..thus total energy remains conserved