Question

What is work, energy, and power?

Answer 1

Work

1. When a force causes motion, it is said to be doing work.
2. Work is done, for example, when a man climbs a mountain because he is moving against gravity.
3. As a result, work is determined by two things. They are as follows: (a) The magnitude of the force (b) The force exerted on the body causes it to move in a certain direction.
4. The SI unit of work is the Joule, and it is referred to as a scalar quantity.
5. Thus, Work is calculated by multiplying the force by the object's movement: $W=F\times d$.

Energy

1. The ability to work is referred to as energy.
2. Energy can't be generated or destroyed; all it can do is change its form.
3. Kinetic and potential energy are the two most important types of energy.
4. The joule (J) is the SI unit of energy, and it was named after James Prescott Joule.

Power

1. Work power, or simply power, is a physical notion that can have a variety of interpretations based on the context and information provided.
2. The rate at which work is completed can be characterized as power.
3. The amount of energy utilized per unit of time is referred to as power.
4. It is a scalar quantity because it has no direction.
5. Watt is the SI unit of power, which is defined as Joules per second.
6. The power required to perform one Joule of work in a second is measured in Watts.
7. The formula for power can be given as: $power=\frac{work}{time}$.