Energy uestions 1. A loudspeaker changes energy into energy. 2. A man falling down is changing ( ) energy Sound 3. A simple electrical circuit with a light bulb changes energy (in the battery into energy (in the wires) and then into energy and energy (in the bulb) into __ energy.

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Energy uestions 1. A loudspeaker changes energy into energy. 2. A man falling down is changing ( ) energy Sound 3. A simple electrical circuit with a light bulb changes energy (in the battery into energy (in the wires) and then into energy and energy (in the bulb) into __ energy.

Answer 1

1. A loudspeaker changes electrical energy into sound energy. 2. A man falling down is changing potential energy into kinetic energy. 3. A simple electrical circuit with a light bulb changes chemical energy (in the battery) into electric energy (in the wires) and then into light energy and heat energy (in the bulb).

Answer 2

## Step 1: In the first scenario, we're looking at a loudspeaker. As we know, the primary function of a loudspeaker is to take an electrical signal and generate sound--decipherable by human ears. Therefore, it's a device that changes electrical energy into sound energy. ## Step 2: Next, we're observing a scenario of a man falling down. From the principle of conservation of energy, we know that the potential energy held by the man while at a certain height will be converted into kinetic energy as he falls, due to the movement involved in the fall. So the man is changing potential energy into kinetic energy. ## Step 3: Then, we're asked about the energy conversion process in a simple electrical circuit consisting of a battery and a light bulb. Here, the initial type of energy involved is stored in the battery in a form called chemical energy. When connected in a functioning circuit, this chemical energy is converted in the wires primarily into electric energy [the electrons here possess potential/local energy for conduction]. And when the electric energy is transporte], to the bulb, it's converted into (primarily) light energy and some heat energy [as a waste/residual product of the conversion process].

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Energy uestions 1. A loudspeaker changes energy into energy. 2. A man falling down is changing ( ) energy Sound 3. A simple electrical circuit with a light bulb changes energy (in the battery into energy (in the wires) and then into energy and energy (in the bulb) into __ energy.

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