Energy Transfers and Transformations Flashcard

Front

What is energy transformation?

Back

Energy transformation is the process of changing energy from one form to another, such as converting mechanical energy into electrical energy.

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What is mechanical energy?

Back

Mechanical energy is the sum of potential energy and kinetic energy in an object, which is the energy associated with the motion and position of an object.

Front

What is electrical energy?

Back

Electrical energy is the energy caused by the movement of electrons, often used to power devices and appliances.

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What is kinetic energy?

Back

Kinetic energy is the energy an object possesses due to its motion, calculated as KE = 1/2 mv², where m is mass and v is velocity.

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What is potential energy?

Back

Potential energy is the stored energy in an object due to its position or state, such as gravitational potential energy based on height.

Front

What happens to energy in a closed system?

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In a closed system, energy is conserved; it can change forms but the total amount of energy remains constant.

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What is thermal energy?

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Thermal energy is the total kinetic energy of particles in a substance, often felt as heat.

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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.

Front

What is a food web?

Back

A food web is a complex network of feeding relationships among organisms in an ecosystem, showing how energy is transferred through different trophic levels.

Front

What is the difference between transverse and longitudinal waves?

Back

Transverse waves move perpendicular to the direction of energy transfer, while longitudinal waves move parallel to the direction of energy transfer.