Question

what is energy??? its types free points...!☹☹✌✌

Answer 1

Answer:

Energy is the capacity of a physical system to do work. The common symbol for energy is the uppercase letter E. ... There are two main forms of energy, called potential energy and kinetic energy. Potential energy, sometimes symbolized U, is energy stored in a system.

Answer 2

Answer:

>>>>> In physics, energy is the quantitative property that must be transferred to an object in order to perform work on, or to heat, the object.[note 1] Energy is a conserved quantity; the law of conservation of energy states that energy can be converted in form, but not created or destroyed. The SI unit of energy is the joule, which is the energy transferred to an object by the work of moving it a distance of 1 metre against a force of 1 newton.

Explanation:

Energy is the ability to do work

Scientists define energy as the ability to do work. Modern civilization is possible because people have learned how to change energy from one form to another and then use it to do work. People use energy to walk and bicycle, to move cars along roads and boats through water, to cook food on stoves, to make ice in freezers, to light our homes and offices, to manufacture products, and to send astronauts into space.

There are many different forms of energy, including

• Heat
• Light
• Motion
• Electrical
• Chemical
• Gravitational

These forms of energy can be grouped into two general types of energy for doing work:

1. Potential or stored energy
2. Kinetic or working energy

Energy can be converted from one form to another. For example, the food a person eats contains chemical energy, and a person's body stores this energy until he or she uses it as kinetic energy during work or play. The stored chemical energy in coal or natural gas and the kinetic energy of water flowing in rivers can be converted to electrical energy, which in turn can be converted to light and heat.