Mechanical energy from your hand turning the pencil sharpener's handle is transformed into kinetic energy as the blade inside the sharpener rotates and sharpens the pencil. Friction between the blade and the pencil also generates heat energy in the process.
The energy transformation that takes place is the conversion of one form of energy to another, such as kinetic energy to thermal energy, electrical energy to light energy, or chemical energy to mechanical energy. This conversion is governed by the laws of thermodynamics and is essential for all processes and activities in the universe.
When sunlight strikes a house, the energy transformation that takes place is from radiant energy (sunlight) to thermal energy (heat). The house absorbs the sunlight, which then gets converted into heat energy, warming up the interior.
In the engine of a typical train, the energy transformation that takes place involves converting the chemical energy stored in fuel (such as diesel) into mechanical energy through combustion. This mechanical energy is then used to move the train by powering the wheels.
In a bicycle, the energy transformation involves converting the chemical energy stored in the body into mechanical energy by pedaling. This mechanical energy is then transferred to the wheels, where it is further transformed into kinetic energy to propel the bicycle forward.
When a lawn mower is used, the energy transformation that takes place is from chemical energy stored in the fuel (such as gasoline) being converted into mechanical energy that powers the movement of the mower blades. The mechanical energy is then used to cut the grass and do the work of mowing the lawn.
In a pencil sharpener, magnetism is used to hold and guide the blade in place. The magnetic force helps keep the blade secure while sharpening the pencil and also aids in the smooth operation of the sharpener.
Electric pencil sharpener can be found in stores such as Office Depot, Staples, Office Max and Walmart. It can be also purchased on-line on websites such as Amazon or eBay.
What energy transformations take place in:
kinetic energy
A log burning in a fire place.
light energy is changed into chemical energy.
The energy transformation that takes place is the conversion of one form of energy to another, such as kinetic energy to thermal energy, electrical energy to light energy, or chemical energy to mechanical energy. This conversion is governed by the laws of thermodynamics and is essential for all processes and activities in the universe.
When sunlight strikes a house, the energy transformation that takes place is from radiant energy (sunlight) to thermal energy (heat). The house absorbs the sunlight, which then gets converted into heat energy, warming up the interior.
Kinetic energy
transforms from potential energy to kinetic energy =]
Electrical energy is converted into light and heat energy
In the engine of a typical train, the energy transformation that takes place involves converting the chemical energy stored in fuel (such as diesel) into mechanical energy through combustion. This mechanical energy is then used to move the train by powering the wheels.