Close

2021-06-17

Which energy transformation occurs at a coal fired electrical power plant?

Which energy transformation occurs at a coal fired electrical power plant?

A machine called a pulverizer grinds the coal into a fine powder. The burning coal heats water in a boiler, creating steam. Steam released from the boiler powers an engine called a turbine, transforming heat energy from burning coal into mechanical energy that spins the turbine engine.

How is energy stored in coal transferred into electrical energy?

The furnace heat converts boiler water to steam, which is then used to spin turbines that turn generators. Thus chemical energy stored in coal is converted successively into thermal energy, mechanical energy and, finally, electrical energy.

What is an example of something that converts chemical energy to mechanical energy?

Gasoline converts chemical energy to mechanical energy in cars. Steam engines convert thermal energy into mechanical energy in a train. Your body converts chemical energy from nutrients to mechanical energy for movement.

How does a crash affect an object’s kinetic energy?

The Energy of a Crash The moving body has energy, called kinetic energy, and this energy will be transferred into something else as the body slows. Likewise, the car crashing into you will transfer its kinetic energy to you. When you let it go, this potential energy is transferred into kinetic energy as motion.

Can kinetic energy be gained in a collision?

Collisions are considered inelastic when kinetic energy is not conserved, but this could be from either a loss or gain or kinetic energy. For example, in an explosion-type collision, the kinetic energy increases.

What happens to the kinetic energy from the moving cars when they collide?

Since these are inelastic collisions, the kinetic energy is not conserved, but total energy is always conserved, so the kinetic energy “lost” in the collision has to convert into some other form, such as heat, sound, etc. In the first example where only one car is moving, the energy released during the collision is K.

What is responsible for changes in kinetic energy?

As a result of a collision the kinetic energy of the particles involved in the collision generally change. The nature of the collision determines how the total kinetic energy after the collision relates to the kinetic energy before the collision.

Why is energy lost in a collision?

In a perfectly inelastic collision, i.e., a zero coefficient of restitution, the colliding particles stick together. In such a collision, kinetic energy is lost by bonding the two bodies together. This bonding energy usually results in a maximum kinetic energy loss of the system.

What percentage of the mechanical energy is lost in this collision?

96.7% is lost!