Potential and Kinetic Energy

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What is Potential Energy?

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Potential Energy (PE) is the stored energy in an object due to its position or state. For example, a rock at the top of a cliff has potential energy because of its height.

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What is Kinetic Energy?

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

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Where is maximum kinetic energy found on a roller coaster?

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At the bottom of a big hill.

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What happens to potential energy as a rock falls off a cliff?

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The potential energy decreases as the kinetic energy increases.

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What is the formula for gravitational potential energy?

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The formula for gravitational potential energy (GPE) is GPE = mass (m) × gravitational acceleration (g) × height (h).

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What is an example of Potential Energy?

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A flashlight that is turned off has potential energy because the batteries are stored energy.

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What is an example of Kinetic Energy?

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A moving car has kinetic energy because it is in motion.

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What is the relationship between potential energy and kinetic energy?

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As potential energy decreases, kinetic energy increases, and vice versa, especially in systems like roller coasters.

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What is the unit of energy?

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The unit of energy is the Joule (J).

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What factors affect Kinetic Energy?

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Kinetic energy depends on the mass of the object and the square of its velocity (KE = 1/2 mv²).

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