PDF Notes: Unidad 1 Socioeconomico Maquinas simples y energia

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    What defines energy?

    It causes changes in the state of rest or motion of bodies.

    What is force?

    It allows for positive or negative accelerations in bodies.

    What is work?

    Requires displacement to occur.

    What is power?

    Determines the speed of performing work.

    What is the principle of energy conservation?

    Energy is transformed, not created or destroyed.

    What happens during energy transformation?

    Some energy becomes unusable thermal energy.

    What is potential energy?

    Stored energy in a body at rest.

    What is kinetic energy?

    Energy due to the motion or speed of a body.

    How is efficiency calculated?

    Efficiency equals useful energy divided by total energy.

    What is the unit of work?

    Measured in Joules (J).

    What is the unit of force?

    Measured in Newtons (N).

    What is the unit of power?

    Measured in Watts (W) or Joules per second.