Energy Types & Transformations

Worksheet by Logan Tubb
Energy Types & Transformations worksheet preview image
Subjects
Science
Grades
7
Language
ENG
Assignments
185 classrooms used this worksheet

Discover the amazing world of energy! Learn about different types and how they change.

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.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. There are three types of heat transfer: conduction, convection, and radiation. Conduction is the flow of heat or electricity when two objects are in direct contact. Convection is the flow of heat in a liquid or a gas. Radiation is the flow of heat in electromagnetic waves.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 radiation heat transfer through electromagnetic waves chemical to thermal hot burner on a gas stove mechanical to sound blowing a horn splitting large atoms or fusing of small atoms nuclear energy convection heat transfer of warm air rising and cool air sinking due to density differences conduction heat transfer due to two objects touching example of convection example of conduction example of radiation Sort the descriptions into the different types of Energy Mechanical walking running water moving engine turning gears moving-motion Electrical outlets plugged in appliances Light solar sun light bulb display screen Thermal Sun's heat increase temperature Sound hearing vibrations through materials Chemical batteries food we eat wood burning in fire gas in a moving car Match each scenario with the energy transformation . a toaster electrical to thermal and light person running chemical to mechanical playing a violin mechanical to sound wind turbine mechanical to electrical plugged-in cell phone electrical to light, thermal, sound, and kinetic rocks falling from a cliff gravitational to kinetic 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 Juan has a digital alarm clock. The clock runs on electrical energy. For the alarm clock to be useful, the electrical energy will be transformed into which form of energy? Thermal Electrical Sound Potential _ is the flow of energy through two objects having direct contact. Conduction Convection Radiation _ is the flow of energy through a liquid or gas. Conduction Convection Radiation _ is the flow of energy through electromagnetic waves. Conduction Convection Radiation Student First and Last Name Student Science Teacher (King or Tubb):

Science Energy energy physics states of matter heat transfer
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