Energy Transfer & Transformations How does energy impact the motion of an object?
Chapter 4 Energy Brain Pop Video Forms of Energy msofenergy/ msofenergy/ Brain Pop Video Where does Energy come from? ergysources/ ergysources/
Energy and Work : Working Together Energy is the ability to do work Work is done when a force causes an object to move in the direction of the force. Think of an example of a force causing an object to move. Write it down and explain.
Energy and Work : Working Together When one object does work on another, energy is transferred from the first object to the second object. This means work is a transfer of energy, which is expressed in units called JOULES (J) QUESTION: What is energy?
Kinetic Energy Kinetic Energy is the energy of motion All moving objects have kinetic energy. Make a list of objects exhibiting kinetic energy. Mass and speed are factors that determine how much kinetic energy an object has. The faster an object is going the more kinetic energy it has. The more mass an object has the greater its kinetic energy will be. Mass and speed do not affect an object equally
Kinetic Energy Brain Pop Video Kinetic Energy eticenergy/ eticenergy/
Potential Energy Potential energy is the energy an object has because of the position, shape or condition of the object. Example: A stretched rubber band Gravitational Potential Energy is what happens when an object is lifted and energy is transferred to it. Example: lifting a barbell, the barbell has the Gravitational Potential Energy
Potential Energy Brain Pop Video Potential Energy tentialenergy/ tentialenergy/
Mechanical Energy Mechanical energy is the amount of work an object can do because of the object’s kinetic and potential energies. Mechanical energy is the total energy of motion and position of an object. Both kinetic and potential energies are types of mechanical energy. Mechanical energy can be made up of both kinetic and potential or some of each.
Other Forms of Energy Thermal Energy Thermal Energy is all of the kinetic energy due to the random motion of the particles that make up the object (its atoms). It is most often measured by measuring temperature
Other Forms of Energy Chemical Energy Chemical energy is energy stored in chemical bonds. Chemical energy is a form of potential energy. Energy in food is stored as chemical energy.
Other Forms of Energy Electrical Energy Electrical energy is the energy of moving electrons. Electrical Energy is what is stored in a battery, and can be used to power a cell phone or start a car. Electrical energy is delivered by tiny charged particles called electrons, typically moving through a wire. Lightning is an example of electrical energy in nature, so powerful that it is not confined to a wire.
Other Forms of Energy Sound Energy Sound is the movement of energy through substances in longitudinal (compression/rarefaction) waves. Sound is produced when a force causes an object or substance to vibrate — the energy is transferred through the substance in a wave. Typically, the energy in sound is far less than other forms of energy.
Other Forms of Energy Light Energy Light energy is a type of radiant energy. Radiant Energy is electromagnetic energy that travels in transverse waves. Radiant energy includes visible light, x-rays, gamma rays and radio waves. Light is one type of radiant energy. Sunshine is radiant energy, which provides the fuel and warmth that make life on Earth possible.
Other Forms of Energy Nuclear Energy Nuclear Energy is energy stored in the nucleus of an atom — the energy that holds the nucleus together. Very large amounts of energy can be released when the nuclei are combined or split apart. Nuclear power plants split the nuclei of uranium atoms in a process called fission. The sun combines the nuclei of hydrogen atoms in a process called fusion.