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Energy - ability to do work xEnergy can be grouped into six major forms. Theses are xmechanical, xradiant, xchemical, xthermal, xelectrical and xnuclear.

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Presentation on theme: "Energy - ability to do work xEnergy can be grouped into six major forms. Theses are xmechanical, xradiant, xchemical, xthermal, xelectrical and xnuclear."— Presentation transcript:

1 Energy - ability to do work xEnergy can be grouped into six major forms. Theses are xmechanical, xradiant, xchemical, xthermal, xelectrical and xnuclear.

2 Work, Power, Mechanical Advantage xWork is the application of force that moves an object a certain distance. Work=Force * distance xPower is the amount of work being done over a period of time. Power =Work / time xMechanical Advantage is an increase in force provided by a machine.

3 Energy zPotential Energy is any form of stored energy

4 Energy zKinetic Energy is energy in motion.

5 Fluid Power zHydraulics Systems are those that control and transmit energy through liquids. zPneumatic Systems are those that control and transmit energy through gases.

6 Newton’s Laws of Motion zNewton's First Law: Newton's First Law states that a body of mass in a state of rest tends to remain at rest and a body or mass in motion tends to remain in motion, unless acted upon by another force.

7 Newton’s Laws of Motion zNewton's Second Law: Newton's Second Law states that an unbalance or force on a body tends to produce an acceleration in the direction of the force.

8 Newton’s Laws of Motion zNewton's Third Law: Newton's Third Law states that for every acting force there is an equal and opposite reacting force.

9 Conservation of Energy zLaw of Conservation of Energy - Energy cannot be created nor destroyed, however it can be converted from one form to another

10 Renewable/Non-Renewable zRenewable energy: some forms of energy are renewable such as solar energy. Renewable energy sources can be replenished naturally in a short period of time.

11 Renewable/Non-Renewable zNon-renewable energy. These energy sources are considered nonrenewable because they can not be replenished (made again) in a short period of time.

12 Renewable/Non-Renewable zSecond Law of Thermodynamics -No energy system can be a 100% efficient.

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14 Simple Machines zLever: The lever magnifies force or velocity. It is often used to move heavy loads with less effort. It is a rigid object that is used with an appropriate fulcrum or pivot point to multiply the mechanical force that can be applied to another object.

15 Simple Machines zPulley: A pulley is a wheel with a groove along its edge, for holding a rope or cable.

16 Simple Machines zGear:

17 Simple Machines zIncline Plane: The inclined plane makes it easier to raise heavy loads. It is a ramp that reduces the force necessary to overcome the force of gravity when changing the elevation of mass in a gravitational field.

18 Simple Machines zWheel and Axle:The wheel and axle (axel) make it easier to move heavy loads along. A wheel is a disc- or torus-shaped object, the fundamental operation of which is to transfer linear motion (that is, going along) into rotary motion (that is, going around).


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