2.  1. Mechanical Energy ◦ Energy associated with the motion or position of an object ◦ Either KE or PE ◦ Ex. Running water, sound, wind, spring  2. Thermal Energy (Heat) ◦ Total energy of the particles in a substance (KE)

3.  3. Chemical Energy ◦ Potential energy stored in the chemical bonds that hold compounds together ◦ Ex. Food, fuels  4. Electrical Energy (KE) ◦ Energy associated with moving electric charges ◦ Ex. Lightning, batteries, power lines

4.  5. Electromagnetic Energy (KE) ◦ Energy that travels in waves ◦ Ex. Light, x-rays, microwaves, UV light, infrared radiation  6. Nuclear Energy (PE) ◦ Energy stored in the nucleus of an atom and released during a nuclear reaction

5.  Energy cannot be created or destroyed  Most forms of energy can be converted into any other form

6.  Average kinetic energy of all the particles in a substance  As the temperature rises describe what happens to the particle movement and the KE.

7.  The total amount of energy of all the particles in a substance is dependant on 3 factors: ◦ Temperature ◦ Number of particles ◦ Arrangement of particles

8.  Heat transfers thermal energy from warmer to cooler temperatures.  Why does your chair feel warm after you get up?

11.  1. Warm water is at the surface of the lake.  2. A metal spoon is hot to the touch when left in a bowl of boiling water.  3. A fireplace warms up the house.  4. A plastic container melts inside a car on a hot summer day.  5. A towel from the dryer warms your skin on a cool day.  6. Lower floors of a building are cooler than upper floors.

12.  1. Convection  2. Conduction  3. Radiation  4. Radiation  5. Conduction  6. Convection