Q
Which of the following is an example of electrical energy being converted to chemical energy?
A. The wheels on a machine begin to turn and move a conveyer belt.
B. An electric furnace begins to emit heat to warm a house.
C. A loudspeaker, which is plugged into the wall, begins to project sound.
D. A storage battery is charged using an electric current.
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Answer
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Step 1:Let's solve this step by step:
Step 2:: Understand the Concept of Energy Conversion
Energy conversion occurs when one form of energy is transformed into another form of energy. In this problem, we need to identify which scenario represents electrical energy being converted to chemical energy.
Step 3:: Analyze Each Option
A. Wheels turning on a conveyer belt - This appears to be mechanical energy conversion - Does NOT involve electrical energy converting to chemical energy B. Electric furnace emitting heat - This is electrical energy converting to thermal energy - Does NOT match our target energy conversion C. Loudspeaker projecting sound - This is electrical energy converting to sound energy (mechanical energy) - Does NOT involve chemical energy conversion D. Storage battery being charged using electric current - In this scenario, electrical energy is being used to cause a chemical reaction in the battery - The electrical energy is converted into chemical potential energy stored in the battery - This MATCHES the description of electrical energy converting to chemical energy
Step 4:: Reasoning
When a battery is charged, the electric current causes a chemical reaction that stores electrical energy as chemical energy within the battery's chemical components.
Final Answer
A storage battery is charged using an electric current.
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