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When a torch is switched on, the electrical energy from the battery is converted to light energy and heat energy. The electrical energy powers the light source (such as LEDs or a bulb) to produce light, and a small portion of the energy is also dissipated as heat.

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1y ago

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What happens to sound energy once it enters the mouthpiece of a telephone?

Once sound energy enters the mouthpiece of a telephone, it is converted into electrical signals by a microphone. These electrical signals are then transmitted through the telephone wire to the earpiece at the other end, where they are converted back into sound waves that can be heard by the listener.


Does pushing a pen off a desk converts potential energy to kinetic energy?

Yes, pushing a pen off a desk converts potential energy (stored energy due to gravity) to kinetic energy (energy of motion) as it falls towards the ground. This conversion happens as the pen loses height and gains speed.


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Solar energy reaches Earth instantaneously as sunlight, but it takes time to convert this energy into electricity through solar panels. Once sunlight is absorbed by solar panels, it can be converted into electricity. This process happens in milliseconds.


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The added energy will raise the temperature of the ice water. Initially, the ice will absorb the energy and melt into liquid water. Once all the ice is melted, the additional energy will continue to raise the temperature of the water until it reaches its boiling point.


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