# What Is Energy-Free documents Library

on work, power and energy]. (iv)Different types of energy (e.g., chemical energy, Mechanical energy, heat energy, electrical energy, nuclear energy, sound energy, light energy). Mechanical energy: potential energy U mgh (derivation included ) gravitational PE, examples; kinetic energy

Forms of energy include radiant energy from the sun, chemical energy from the food you eat, and electrical energy from the outlets in your home. All these forms of energy may be used or stored. Energy that is stored is called potential energy. Energy that is being used for motion is called kinetic energy. All types of energy are measured in joules.

reduces Kinetic Energy and increase Potential Energy A: The energy is stored as potential energy. PE is like your saving account. Potential energy gain (mg h) during the rising part. We can get that energy back as kinetic E if the ball falls back off. During falling, Kinetic Energy will increase mg h. Potential energy will reduce mg h.

Energy is often defined as the ability to do work. Pair up and list as many forms of energy as you can. Electrical. Chemical. Nuclear. Magnetic. Elastic. Sound. Gravitational energy. Kinetic energy (energy of motion). Thermal energy (heat energy). Potential energy. Potential energy

kinetic energy and potential energy as the ball moves. The bars in the figure show that the ball's total energy does not change. The Law of Conservation of Energy The total energy in the universe is the sum of all the different forms of energy everywhere. According to the law of conservation of energy, energy can be transformed from one

changes to thermal energy. Thermal energy causes the lamp's bulb to become warm to the touch. Using Thermal Energy All forms of energy can be changed into thermal energy. Recall that thermal energy is the energy due to the motion of particles that make up an object. People often use thermal energy to provide warmth or cook food. An electric space

32 Renewable Energy 33 References To learn more about DOE programs in energy efficiency and renewable energy, visit the Office of Energy Efficiency and Renewable Energy's web site at www.eere.energy.gov "High energy costs can really pinch American families. While the Department of Energy is working hard to develop new technologies to

transformations. Describe an energy transformation that took place in each of the numbered events above. Solution: 1. Electrical energy to sound energy; 2. Electrical energy to radiant energy (light and heat); 3. Chemical energy from food to kinetic energy; 4. Chemical energy from natural gas to radiant energy (heat and light). 1.

Energy and Energy Transformations Energy is the capacity to do work. Energy exists in many forms, such as thermal energy and kinetic energy. In an energy transformation, energy changes from one form into another. The transformation can be described using an equation with arrows. 4.2 Work The term work has a specific meaning in physics.

An energy conversion is a change from one form of energy to another. Any form of energy can change into . energy for the guitar 14. light energy 15. In nuclear fusion, nuclei join; in fission, nuclei split apart. . SECTION 2 ENERGY CONVERSIONS 1. 1) potential energy 2) kinetic energy 2. by stretching it 3. Food has chemical energy.

conservation of energy tells us that we can never create or destroy energy, but we can change its form. In this lab, you will analyze energy transfer between gravitational potential energy, kinetic energy, and energy lost due to collisions or friction (thermal energy) as a skate boarder rides along a track.

The amount of kinetic energy in a moving object depends on its speed and its mass. x Kinetic energy can change into other forms of energy. x Potential energy is known as stored energy. x It is energy that could cause changes in the future. x Potential energy often changes into kinetic energy. Exampl