Which energy change takes place in a torch?
Answer and explanation
Correct answer: D. chemical energy to light energy
In a torch the change is chemical energy to light energy.
Answer: chemical energy to light energy.
Why not the others: electrical energy to heat energy: that is the change in an electric kettle. light energy to electrical energy: that is the change in a solar cell. kinetic energy to electrical energy: that is the change in a wind turbine.
Answer: chemical energy to light energy.
Why not the others: electrical energy to heat energy: that is the change in an electric kettle. light energy to electrical energy: that is the change in a solar cell. kinetic energy to electrical energy: that is the change in a wind turbine.
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