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, chemical, and electrical.

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What is kinetic energy?

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Kinetic energy is the energy of an object in motion. It depends on the mass of the object and its velocity.

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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 rock at the top of a hill has gravitational potential energy.

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What is thermal energy?

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Thermal energy is the total energy of all the particles in an object, related to its temperature. It is often associated with heat.

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What is chemical energy?

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Chemical energy is the energy stored in the bonds of chemical compounds, like food and fuel. It is released during a chemical reaction.

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What is electrical energy?

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Electrical energy is the energy caused by the movement of electrons. It powers devices and appliances.

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What is friction?

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Friction is the force that opposes the motion of two surfaces sliding against each other, often generating heat.

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What are joules?

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Joules are the units of measurement for work and energy in the International System of Units (SI).

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What are newtons?

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Newtons are the units of measurement for force in the International System of Units (SI).

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What is sound energy?

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Sound energy is the energy produced by vibrating sound waves. It travels through air, water, and solids.