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An electric bulb is a device that converts electricity into light. Sound waves are converted into electrical energy by microphones. The signal is the audio. The battery converts chemical energy into electrical energy.
2. A device converts electrical energy to light and sound. Chemical energy int. A device converts electrical energy to light and sound. Chemical energy int.
Artificial light can be converted into electricity by somevoltaic cells. There are particles of solar energy in the sun. The different wavelength of the solar spectrum correspond to the amount of energy contained in these photons. Semiconductor material is used in the cell.
A solar cell converts sunlight into electricity. Artificial light can be converted into electricity by somevoltaic cells. Physicists carry solar energy.
The motor in a power drill and the motor in a power saw are examples of devices that convert electrical energy into mechanical energy.
An electric motor is used to create motion. Motion energy is the amount of energy in an object used for work. When a force acts on an object, it’s called work. An object or substance has potential energy.
Light and heat can be converted to electrical energy. The diagram below shows how much energy comes out of an energy conversion device and how much goes into it.
The devices convert energy. The electrical energy is converted to light and heat in an electric bulb. The amount of electrical energy put into a bulb is divided by the amount of light energy and heat energy that comes out of it. If you go to the mall with 100 dollars, you return with 10 dollars.
The light comes from the conversion of electrical energy to heat energy and then into light energy. The electrical energy in a light bulb can be converted into light energy directly.