Energy & Power

Energy Conversion & Conservation

Chapter 5

Section 2

Energy Conversion

• Any form can be converted into any other form of energy

Toaster

• Electrical – Thermal

Your Bodies

• Chemical Energy – Kinetic Energy– Thermal Energy

Rubber Band

• Elastic Potential Energy – Kinetic Energy

Spark Plug

• Chemical Energy – Electrical Energy

• Thermal Energy – Mechanical Energy

Match

• Chemical Energy – Thermal Energy

Niagara Falls Hydroelectricity

• Gravitational Potential Energy – Mechanical Energy

• Electrical Energy

Juggling

• Kinetic Energy – Potential Energy

• Kinetic Energy

Pole Vault

• Kinetic Energy – Elastic Potential Energy

• Gravitational Potential Energy Kinetic Energy

Pendulum

• Kinetic Energy – Potential Energy

• Kinetic Energy

Law of Conservation of Energy

• Energy can be transferred– But never…

• Created• Destroyed

Perpetual Motion

• Impossible!!!– All motion will have some…

• Air resistance• friction