Department of Mathematics and Science Energy Transformations 2/1/2016 Starter: What do you know about types of energy? Practice: Notes Application/Connection/ Energy Transformations Notes Exit: Energy Transformations EQ: How can the transfer of energy alter systems? 2/1/ At what point is light energy transformed into electrical energy?

Department of Mathematics and Science February 1, 2016 AGENDA TEKS 6.9A investigate methods of thermal energy transfer including conduction, convection, and radiation TEKS 6.9B verify through investigations that thermal energy moves in a predictable pattern from warmer to cooler until all the substances attain the same temperature such as an ice cube melting 1 Starter 2. Notes 3. Ws 4. Exit

Department of Mathematics and Science Table of Contents DateLecture/ Activity/ Lab Page 1/26 Conduction Lab /27 Convection Lab /28 Radiation Lab /29 Thermal Energy Ws /1 Energy Transformations

Department of Mathematics and Science 4 What is Energy? Energy is the ability to do work. Energy Energy is the ability to cause a change. Energy can change an object’s: motion shape temperature color

Department of Mathematics and Science Energy is all around us! – You can hear energy as sound when someone talks. – You can see mechanical energy every time you move. – You can see energy as light from the sun or a lamp. – You can feel it as heat warms things up. Discovery Fundamentals: Energy Makes it Happen

Department of Mathematics and Science Kinetic Energy Energy due to motion. Types of kinetic energy Kinetic energy can change into other forms of energy.

Department of Mathematics and Science Potential Energy Stored energy that could cause change in the future. Potential energy is stored energy--energy ready to go. A lawn mower filled with gasoline, a car on top of a hill, and students waiting to go home from school are all examples of potential energy. Types of potential energy gravitational compressed spring chemical magnetic

Department of Mathematics and Science Chemical Energy Chemical energy is made when substances react and form new substances. Food, batteries, and fuels such as oil and gasoline are stored chemical energy. Chemical energy can change to: Chemical energy soundlight thermal electrical kinetic

Department of Mathematics and Science What is Sound? Sound is a form of energy produced by a Sound vibration or a back and forth movement of an object. Sound is a wave of vibrations that spread from its source of its matter. The more vibrations the waves have, the more energy, the louder the sound. The faster the vibrations or the frequency, the higher the sound. How high or low a sound is called the pitch.

Department of Mathematics and Science What is light? Light is something that allows us to see objects. Light is a form of energy. Light Light is produced by the vibrations of electrically charged particles.

Department of Mathematics and Science What is Thermal Energy? Thermal energy is the total of all the kinetic Thermal energy and potential energy of the atoms in an object. When any form of matter gets warmer, the kinetic energy of its atoms increases. The object’s particles move faster, so its thermal energy increases. A change in thermal energy can lead to a change in phase or state of matter. Temperature is a measure of thermal energy.

Department of Mathematics and Science Forms of Energy Energy Forms Heat/thermal Electrical Chemical Mechanical: potential kinetic Light /Radiant What Happens? Objects warm. Food cooks. Lights on. / Machines run. Organisms move and grow. Flashlights light up. Sled sits on top of a hill. Sled slides down the hill. Plants grow. / Lasers cut.

Department of Mathematics and Science What is the Transformation of Energy? Energy can change and move from one object to another. chemical > electrical > light Where does the energy of a lit light bulb transfer to after the flashlight has been on for a while? Heat energy transfers into the air.

Department of Mathematics and Science Transformation of Energy A. B. A. B. C. Heat Light Sound Heat Mechanical

Department of Mathematics and Science Energy Transformations 2/1/2016 Starter: What do you know about types of energy? Practice: Notes Application/Connection/ Energy Transformations Notes Exit: Energy Transformations EQ: How can the transfer of energy alter systems? 2/1/ At what point is light energy transformed into electrical energy?