Mechanical Energy

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What is mechanical energy?

Back

Mechanical energy is the sum of potential energy and kinetic energy in an object.

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NGSS.MS-PS3-5

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What is kinetic energy?

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

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What is potential energy?

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Potential energy is the stored energy of an object due to its position or state, such as height or tension.

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How does increasing force affect the motion of an object?

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Increasing force can change the direction and speed of an object's motion.

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NGSS.MS-PS2-2

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What is the relationship between speed, distance, and time?

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Speed is defined as the distance traveled divided by the time taken.

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What is an example of an object with potential energy?

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A stretched rubber band has potential energy due to its position and tension.

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NGSS.MS-PS3-2

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What factors can affect the motion of an object?

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Forces such as gravity, friction, and applied force can affect the motion of an object.

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What is the principle of conservation of mechanical energy?

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The principle states that in a closed system, the total mechanical energy remains constant if only conservative forces are acting.

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How does height affect potential energy?

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Potential energy increases with height, as it is directly proportional to the height of the object above a reference point.

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NGSS.MS-PS3-2

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What is the formula for calculating kinetic energy?

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Kinetic energy (KE) is calculated using the formula KE = 1/2 mv².

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