Answer:
Power is the rate at which energy is transformed.
The SI unit of power is the watt.
Power is the rate at which work is done.
Explanation:
In this question we have to choose the statements related to Power that are True.
In this sense, Power [tex]P[/tex] is the speed with which work [tex]W[/tex] is done. Its unit is Watts ([tex]W[/tex]), being [tex]1 W=\frac{1 Joule}{1 s}[/tex].
Power is mathematically expressed as:
[tex]P=\frac{W}{t}[/tex]
Where [tex]t[/tex] is the time during which work [tex]W[/tex] is performed.
On the other hand, the Work [tex]W[/tex] done by a Force [tex]F[/tex] refers to the release of potential energy from a body that is moved by the application of that force to overcome a resistance along a path. It is a scalar magnitude, and its unit in the International System of Units is the Joule (like energy). Therefore, 1 Joule is the work done by a force of 1 Newton when moving an object, in the direction of the force, along 1 meter ([tex]1J=(1N)(1m)=Nm[/tex] ).
So, according to this explanation, the true statements are:
Power is the rate at which energy is transformed.
The SI unit of power is the watt.
Power is the rate at which work is done.
