SECTIONAP C Mechanics : Work, Energy, and Power

Mathematics of mechanical energy conservation

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LEARNING OBJECTIVE 3.4.B - Describe the behavior of a system using conservation of mechanical energy principles. AP MECHANICS -C LEARNING OBJECTIVE CON 2.B -. Describe kinetic energy, potential energy, and total energy in relation to time (or position) for a “conservative” mechanical system. In the last section, we introduced a very profound idea of the conservation of mechanical energy...

Mechanical energy and its conservation

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LEARNING OBJECTIVE 3.4.B - Describe the behavior of a system using conservation of mechanical energy principles. AP MECHANICS -C LEARNING OBJECTIVE CON 2.A -. Describe physical situations in which mechanical energy of an object in a system is converted to other forms of energy in the system. Describe physical situations in which the total mechanical energy of an object in a system changes or...

Another way of storing work – Potential energy

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LEARNING OBJECTIVE 3.3.A - Describe the potential energy of a system. AP MECHANICS -C LEARNING OBJECTIVE CON 1.B -Explain how the general relationship between potential energy functions and conservative forces is used to determine relationships between the two physical quantities. In the last section, we introduced the idea of kinetic energy. Kinetic energy stores work by virtue of motion...

Work energy theorem

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LEARNING OBJECTIVE 3.2.A - Describe the work done on an object or system by a given force or collection of forces. AP MECHANICS -C LEARNING OBJECTIVE INT 4.C -Calculate the net work done on an object that undergoes a specified change in speed or change in kinetic energy. Calculate changes in an object’s kinetic energy or changes in speed that result from the application of specified forces. In...

What is kinetic energy?

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LEARNING OBJECTIVE 3.1.A - Describe the translational kinetic energy of an object in terms of the object’s mass and velocity. AP MECHANICS -C LEARNING OBJECTIVE INT 4.C -. Calculate the change in kinetic energy due to the work done on an object or a system by a single force or multiple forces. In the last section, we looked at ways to store work. The next obvious question is how to transport this...

Can we store work – What is Energy?

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LEARNING OBJECTIVE 3.4.A -Describe the energies present in a system. In the last section, we learned to calculate Work in different scenarios. Work makes things happen. The next question is can we somehow store the work for future use, If so how? Once stored we will probably also need to transport it, which will allow us to use it wherever we need as well as whenever we need it. This is the main...

Work done in case of varying force

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LEARNING OBJECTIVE 3.2.A - Describe the work done on an object or system by a given force or collection of forces. AP MECHANICS -C LEARNING OBJECTIVE INT 4.B -Calculate a value for work done on an object from a force versus position graph. Consider a body moving in a straight line under the influence of force F. For simplicity, we assume that displacement of the body happens in the direction of...

Work done by a force acting at an angle with displacement

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LEARNING OBJECTIVE 3.2.A - Describe the work done on an object or system by a given force or collection of forces. AP MECHANICS -C LEARNING OBJECTIVE INT 4.A -Describe the work done on an object as the result of the scalar product between force and displacement. Explain how the work done on an object by an applied force acting on an object can be negative or zero. Having considered the simple...

Calculating work done by a force

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LEARNING OBJECTIVE 3.2.A - Describe the work done on an object or system by a given force or collection of forces. AP MECHANICS -C LEARNING OBJECTIVE INT 4.A -Calculate work done by a given force (constant or as a given function F(x)) on an object that undergoes a specified displacement. let’s now define the work mathematically, so that we can calculate its value. To introduce the...

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