Energy Final 9th grade

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What is potential energy?

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Potential energy is the energy stored in an object due to its position or state. For example, a battery stores potential energy that can be converted into kinetic energy.

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What is nuclear energy?

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Nuclear energy is the energy stored in the nucleus of an atom. It can be released during nuclear reactions, such as fission or fusion.

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What is electrical energy?

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

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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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How is kinetic energy calculated?

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Kinetic energy (KE) is calculated using the formula KE = 1/2 mv², where m is mass and v is velocity.

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What is the relationship between potential and kinetic energy?

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Potential energy can be converted into kinetic energy. For example, when an object falls, its potential energy decreases while its kinetic energy increases.

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What type of energy is associated with heat?

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Thermal energy is the energy that comes from the temperature of matter. It is the total kinetic energy of particles in an object.

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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 an example of energy transformation?

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An example of energy transformation is a hydroelectric power plant, where potential energy of water is converted into electrical energy.

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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.