science

• work is the transfer of energy by a force acting on the object as it is displaced
• energy is the ability to do work
• potential energy possessed by an object that is at rest/stored energy
• mechanical energy is the combination of ke & pe
• law of conservation of momentum is when two objects collides , the total momentum of the objects before the collisions is equal to the total momentum of the objects after the collision
• Julius robert Mayer who designed an archimedean screw to pump up to water to a higher level
• james Joule who discovered that mechanical energy can be converted into heat energy
• James Prescott joule who came up with an appratus that converts mechanical energy to produce heat
• Power plants that run using fossil fuels are operated on the same principle as coal power plants
• wind farm are usually built where there is perceived abundance of air movement of wind
• Solar farms use the heat from the sun to generate electricity
• Hydroelectric power plants use the energy from falling water to turn turbines at the base of the dam to produce electricity
• Geothermal power plants use energy from the depths of earth to produce electricity
• nuclear energy a type of energy is currently untapped in the country because of its hazardous nature
• plants then use the light energy , through photosynthesis, to convert it to chemical energy
• it is converted to light , sound , and heat energy
• gravitational potential energy of the object is initially converted to kinetic energy until all gravitational potential energy is completely converted to kinetic energy