ENERGY

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What is energy?

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Energy is the ability to do work or cause change. It exists in various forms, such as kinetic, potential, thermal, and chemical.

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What is kinetic energy?

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Kinetic energy is the energy of an object in motion. The faster an object moves, the more kinetic energy it has.

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What is potential energy?

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Potential energy is stored energy based on an object's position or state. For example, a pendulum at its highest point has maximum potential energy.

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What happens to energy in a pendulum?

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As a pendulum swings, kinetic energy and potential energy convert into each other. At the highest point, potential energy is greatest; at the lowest point, kinetic energy is greatest.

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What is a chemical reaction?

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A chemical reaction is a process that leads to the transformation of one set of chemical substances to another, often releasing energy.

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What is the role of oxygen in energy release?

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Oxygen is necessary for combustion reactions, where fossil fuels like oil or coal are burned to release 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.

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What is thermal energy?

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Thermal energy is the total kinetic energy of particles in a substance, related to its temperature.

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What is the difference between renewable and non-renewable energy?

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Renewable energy comes from sources that can be replenished naturally, like solar or wind energy. Non-renewable energy comes from sources that can be depleted, like fossil fuels.

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What is an example of potential energy?

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An example of potential energy is a rock at the top of a hill. It has the potential to fall and convert that energy into kinetic energy.

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