Physics Energy

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What is Kinetic Energy?

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Kinetic Energy (KE) is the energy an object possesses due to its motion. It is calculated using the formula KE = 1/2 mv², where m is mass and v is velocity.

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What is Potential Energy?

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Potential Energy (PE) is the energy stored in an object due to its position or configuration. For example, an object at a height has gravitational potential energy.

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What is the Law of Conservation of Energy?

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The Law of Conservation of Energy states that energy cannot be created or destroyed, only transformed from one form to another. The total energy in a closed system remains constant.

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What is Power in terms of energy?

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Power is the rate at which energy is transferred or converted. It is calculated as Power = Energy / Time.

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What is Total Mechanical Energy?

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Total Mechanical Energy (TME) is the sum of an object's kinetic energy and potential energy. TME = KE + PE.

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How does velocity affect Kinetic Energy?

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The kinetic energy of an object increases with the square of its velocity. If the velocity doubles, the kinetic energy increases by a factor of four.

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What happens to Total Mechanical Energy in a closed system?

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In a closed system, the Total Mechanical Energy remains constant, even as kinetic and potential energy may change.

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What is an example of energy transformation?

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An example of energy transformation is a roller coaster: as it climbs, kinetic energy is converted to potential energy, and as it descends, potential energy is converted back to kinetic energy.

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What is the formula for calculating Kinetic Energy?

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The formula for calculating Kinetic Energy is KE = 1/2 mv², where m is mass and v is velocity.

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What is the formula for calculating Potential Energy?

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The formula for calculating Gravitational Potential Energy is PE = mgh, where m is mass, g is the acceleration due to gravity, and h is height.