oneone EEM-3 Objective: To examine real life situations involving energy use in order to analyze how energy can be transformed from one form to another. WELCOME PARENTS!!! ENERGY Note: How does energy change forms? Drill: 1. Get a lab from the SET. 2. Take out your dry erase board. 3. Write both parts of the law of Conservation of Energy.

oneone EEM-3 Activity 1: Forms of Energy – Recap a.View the energy card being displayed. b.Choose the card with the form of energy that matches the displayed card. c.Show your card when instructed to. (The back of your card should have clues.)

oneone EEM-3 BACKGROUND INFORMATION Energy is all around you in many different forms. The energy around us is being stored, transformed or transferred at all times. Any device that undergoes an energy conversion where stored energy (potential energy) is changed to active energy (kinetic energy) undergoes an energy trans"form"ation. These energy transformations enable batteries, flashlights, toasters, video games, cars, and even you to do work.

oneone EEM-3 According to the law of conservation of energy, energy is neither created nor destroyed, but converted to other forms.

oneone EEM-3 SEGAL ART DEMO

oneone EEM-3 Activity 2: Demonstration 1.Observe the teacher demonstration. 2.Predict the energy types and forms involved in the demonstration. Circle your choices and justify your selections in the boxes below.

oneone EEM-3 BEFORE: Kind – PotentialForm – Chemical Energy is stored in the chemicals on the tip of the match. AFTER: Kind – KineticForm – Thermal & EM The burning match generates heat which is thermal energy and light which is electromagnetic energy. Both are kinetic energy.

oneone EEM-3 HOMEWORK Locate Energy Conversions in Your House

oneone EEM-3 Objective: To examine real life situations involving energy use in order to analyze how energy can be transformed from one form to another. WELCOME PARENTS!!! ENERGY Note: How does energy change forms? Drill: 1. Take out your lab and your homework. 2. Put a star next to your best conversion.

oneone EEM-3 HOMEWORK ENERGY CONVERSION DITTO

oneone EEM-3 Objective: To examine real life situations involving energy use in order to analyze how energy can be transformed from one form to another. ENERGY Note: How does energy change forms? Drill: 1. Take out your lab and your homework. 2. Identify a homework question that you had difficulty with.

oneone EEM-3 Let’s RECAP 1.Homework – 2 freebees 2.Station Recap

oneone EEM-3 Example 1: Fan Observe the fan. Think! Ask yourself, from where does the energy come to make the blades move? Record! Turn it on. What form/forms of energy is/are represented by the blades moving? Record!

oneone EEM-3 BEFORE: Kind – Kinetic Form – Electrical AFTER: Kind – Kinetic Form – Mechanical The electrical energy (moving electrons) is transformed into mechanical energy represented by the moving blades.

oneone EEM-3 Example 2: Effervescent Tablet Observe the effervescent tablet. Think about the energy represented by the tablet. Record! Place it into a beaker of water. What forms of energy are represented by the bubbles moving? Record!

oneone EEM-3 BEFORE: Kind – Potential Form – Chemical AFTER: Kind – Kinetic Form – Mechanical There are chemicals in the tablet which represent stored chemical energy. When the tablet is placed into the water a chemical reaction takes place and the chemical energy is converted to mechanical energy as the gases move through the water.

oneone EEM-3 Example 3: Toaster Oven Observe the toaster oven. Think! Ask yourself, from where does the energy come to make the toaster oven work? Record! Turn it on. What form/forms of energy is/are represented by the working oven? Record!

oneone EEM-3 BEFORE: Kind – Kinetic Form – Electrical AFTER: Kind – Kinetic Form – Thermal The electrical energy (moving electrons) is transformed into thermal energy as the coils in the oven get hot.

oneone EEM-3 Example 4: Car and Ramp Observe the car and ramp. Place the car at the top of the ramp. Think! Ask yourself, “What energy does the car have at the top of the ramp before it moves? Release the car. What form/forms of energy is/are represented by the car moving? Record!

oneone EEM-3 BEFORE: Kind – Potential Form – Mechanical AFTER: Kind – Kinetic Form – Mechanical Form – Thermal When the car is at the top of the ramp it has potential mechanical energy due to the height. After release it is converted into mechanical (movement) and thermal (heat).

oneone EEM-3 Example 5: You Observe your hands. Start rubbing them together. Ask yourself, what form of energy is represented by your hands rubbing? Record! What form/forms of energy were represented by what you felt? Record!

oneone EEM-3 BEFORE: Kind – KineticForm – Mechanical AFTER: Kind – KineticForm – Thermal Rubbing hands together represents mechanical kinetic energy as the hands are moving. This is converted to thermal energy as the rubbing generates heat due to friction.

oneone EEM-3 HOMEWORK Day 3 Ditto 5-1