When an electric fan is plugged into a wall outlet, the fan blades spin as a result. What energy transformation occurred?(1 point)
Electrical energy to mechanical energy
A simple circuit is wired with a battery, a switch, and a bell. When the switch is turned on, what energy transformations will occur?
When the switch is turned on in a simple circuit with a battery and a bell, the following energy transformations will occur:
1. Chemical energy in the battery is converted to electrical energy.
2. Electrical energy flows through the circuit.
3. Electrical energy is converted to mechanical energy in the bell, causing it to ring or produce sound.
A woman runs as shown. What main energy conversion occurs?
The main energy conversion that occurs when a woman runs is the conversion of chemical energy stored in her body to mechanical energy, which is used to power her movement.
Heated gases will rise to the top of its container. Why does this occur?(1 point)
This occurs due to the process of convection. When gases are heated, their molecules gain kinetic energy and move faster, causing them to spread out and become less dense. As a result, the heated gases become lighter than the surrounding cooler gases, causing them to rise to the top of their container.
The appropriate answer would be "Chemical energy to electrical energy." In this setup, the battery typically converts the stored chemical energy within it into electrical energy. The electric current resulting from this conversion then flows through the circuit and reaches the light bulb, where the electrical energy is further transformed into light and thermal energy, which corresponds to the mechanical energy of the light bulb filament vibrating and emitting light.
