Learning Task 2 Give examples of objects for each of the following energy transformation 1. Chemical energy to heat and light energy 2. Electrical energy to sound energy 3. Chemical energy to heat, light and sound energy 4. Electrical energy to mechanical energy 5 5. Electrical energy to mechanical, wind and sound energy
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Learning Task 2 Give examples of objects for each of the following energy transformation 1. Chemical energy to heat and light energy 2. Electrical energy
Answer:
Chemical Energy to heat and light energy
ANSWER:Coal: The combustion reaction converts chemical energy into light and heat. Wood: Combustion converts chemical energy into light and heat. Petroleum: Petroleum may be burned to release light and heat or changed into another form of chemical energy, such as gasoline.
Electrical Energy to sound energy
ANSWER:A brief explanation of the above-listed example of electrical energy to sound energy is given in this section.
Loudspeakers. ...
Electric bells in schools and colleges. ...
Earphones. ...
Cordless headphones. ...
Television. ...
Mixer. ...
Electric doorbells. ...
Radio system.
Chemical energy to heat, light and sound energy
ANSWER: Burning of crackers is an example of a chemical change in which all the three things that is heat light as well as sound is produced.
Electrical energy to mechanical energy
ANSWER:Electric Motor
Electric motors convert electrical energy into mechanical energy. For example, when we switch on the fan, the electric motor starts converting the electrical energy into mechanical energy. The mechanical energy then gives the fan blades the ability to do work and hence, they start rotating.
Electrical Energy to Mechanical, wind and sound energy
ANSWER:A power drill converts electrical energy to mechanical energy when plugged in and used. Music converts sound energy to mechanical energy in your eardrum.
Explanation:
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