Work and Power
1. List 2 ways work can be done on an object.
2. What is power and how is it calculated?
1. Work can be done on an object through various means, including:
- Applying a force and causing the object to move in the direction of the force.
- Transferring energy to the object, such as through heating or electrical means.
2. Power is the rate at which work is done or energy is transferred. It is calculated by dividing the amount of work done or energy transferred by the time taken to do the work or transfer the energy. Mathematically, power is given by the equation: Power (P) = Work (W) / Time (T) or Power (P) = Energy (E) / Time (T). The unit of power is the watt (W).