Conservation of energy G9F1

Master energy conservation! Fun worksheet on energy types & transformations for 7th graders.

Write your full name and class section Types of Energy Read the following passage. Learn each type of energy and how it works and fill in the blanksEnergy is the ability to do work by putting things into motion or changing matter. There are many forms of energy. Energy can be changed from one form to another. All energies are wavelike in patterns but some act like particles too. De pends how you look at or study them.We use many forms of energy in our homes and schools. Energy is never "lost" or goes missing as it moves from one thing or place to another. It just transforms into other energies (and spreads out and weakens usually) and causes things to change that it effects. This is called conservation of energy. Matter (solid, liquid, gas, and plasma made of atoms has the same law of conservation as well. Matter just transforms too.Mechanical energy is the energy of motion. It causes things to move.Kinetic energy is the energy of objects in motion. Similar to mechanical energy.Light (radiant or electro-magnetic) energycomes from stars like our Sun and other sources. Light energy from the sun is called solar energy.Thermal or heat energy happens when particles of matter move faster. It can be observed as infra-red light. Thermal energy can be used for heat, to cook, or to generate (make) electricity.Electrical energy (electricity) comes from the movement of charged particles called electrons (they orbit the outer parts of atoms usually but can freely move too). Electrical energy may come from a battery or from a power plant and natural sources like charged surfaces and lightening.Sound energy is caused by vibrations that travel in waves. Sonic energy.Nuclear energy can happen from the fusing of atoms (combining them into larger atoms) or splitting them into smaller atoms (fission).Gravitational energy is due to the force of gravity. Objects attract other objects. The more massive an object more gravitational force it has to attract.Potential energy is the possible energy that can be released by an object or system of objects.Chemical energy is the energy that bonds atoms together to make a chemical or molecule. These bonds between atoms can be broken releasing energy when a chemical reaction happens. Also the opposite is true: it takes energy to bond (connect) atoms together to build a new molecule. Matching energy Match the energy type with object that shows it best. chemical to thermal (heat) to mechanical car engine electrical to light Light bulb electrical to mechanical robot moving chemical to thermal hot burner on a gas stove mechanical to sound blowing a horn splitting large atoms of fusing of small atoms nuclear energy Sort the descriptions into the different types of Energy Mechanical walking running water moving moving-motion Electrical outlets batteries plugged in appliances current of elections as spark or through wires. Light solar sun electromagnetic radiation light bulb display screen Thermal Sun's heat increase temperature decrease temperature change of state of matter from solid, liquid, gas into another state Sound waves of compressed particles hearing vibrations through materials Energy Transformed Fill in the box by the blue circle with the type of energy for each step in the transformation. solar electricity Match each scenario with the energy transformation . a toaster electrical to thermal person running chemical to mechanical playing a violin mechanical to sound wind turbine mechanical to electrical tanning bed electrical to light and thermal rocks falling from a cliff potential or gravitational to kinetic Chain of energy! Fill in the missing energy for the transformation shown. light chemical mechanical Nuclear energy is often transformed to _ to make it useful to people. Light Mechanical Electrical Sound When a child swings on a play set, what energy transformation occurs? chemical to light electrical to chemical chemical to nuclear chemical to mechanical When a car's tires spin on the road, friction is generated. In this example, some of the mechanical energy is transformed to _ energy. thermal light nuclear solar Energy cannot be created nor _. found generated destroyed wasted This hand held game is powered by batteries. Which forms of energy are involved in the transformation of energy that takes place when the game is played? chemical electrical light all of the above Water flows through turbines in dams . The flowing water makes the turbines spin. What type of energy is used to make the turbines spin in a dam? Light Thermal Mechanical Nuclear