The correct answer is option D, that is, a storage battery is charged using an electric current.
The transformation of one form of energy into another, generally to transform the energy into more useful kind is known as energy conversion. The energy can neither be created nor be destroyed, it can only be transformed. The different forms of energy comprise light, heat, mechanical, electrical, sound, nuclear, and sound.
In the given question, the charging of a storage battery using electric current is an example of electrical energy being converted into chemical energy.
An example of electrical energy being converted to chemical energy: D. A storage battery is charged using an electric current.
Energy can be interpreted as the ability to do work
There are several examples of energy
[tex]\displaystyle E_k=\frac{1}{2}mv^2[/tex]
m = mass
v = velocity
[tex]\displaystyle Ep=mgh[/tex]
g = acceleration due to gravity
h = height
[tex]\displaystyle Em=Ep+Ek[/tex]
Energy can change into other forms of energy but the magnitude will remain the same. This is in accordance with the law of conservation of energy which states that
Energy can change to other forms but cannot be created or destroyed
Let's look at the answer choices
A. The wheels on a machine begin to turn and move a conveyer belt.
the mechanical energy changes into kinetic energy
B. An electric furnace begins to emit heat to warm a house.
the electrical energy changes into heat energy
C. A loudspeaker, which is plugged in to the wall, begins to project sound.
the electrical energy changes into sound energy
D. A storage battery is charged using an electric current.
the electrical energy changes into into chemical energy
Identify the form of energy
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Keywords: the law of conservation of energy
