Energy and motion notes

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Presentation transcript:

Energy and motion notes STUDENT VERSION

Power = Work / Time… P=w/t Define Energy: Power = Work / Time… P=w/t

Work has 3 requirements – what are they? 1. 2. 3. Work = Force x distance… W=Fd

Define: Kinetic Energy (ke)

Define: Potential Energy (PE)

Leopard has POTENTIAL ENERGY WHEN…. KINETIC ENERGY (energy of movement) WHEN….

The Pogo Stick has Potential energy when… The Pogo Stick has kinetic energy when…

amount of time it takes to make one trip from side to side Period amount of time it takes to make one trip from side to side

Define: Mechanical energy: ME = PE + KE An airplane soaring through the sky has mechanical energy just like the wind or a flowing river. Sound is another type of mechanical energy.

Define: Chemical Energy The food you eat gives chemical energy which allows you to walk, run and move.

Define: Electrical Energy It can come from batteries or power plants and it can also be found in nature. Power plants burn fuel to make electricity which is then sent to homes and businesses through wires.

Plants use it to make food. Scientists use it to create lasers. Light Energy comes from the Sun. Plants use it to make food. Scientists use it to create lasers.

Define: Thermal energy The faster the particles move, the warmer the matter can get. Examples of thermal energy are stoves and matches.

define: Nuclear energy The Sun’s energy is produced from nuclear reaction.

What is the Law of Conservation of Energy? Total amount of energy never changes.

Words to know: Net Force – Centripetal Force – Conservation of Momentum – Momentum – Speed – Velocity – Acceleration –

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