U7.W1.MC. Speed & Energy

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What is energy?

Back

Energy is the ability to do work or cause change. It can exist in various forms, such as kinetic energy (energy of motion) and potential energy (stored energy).

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What is kinetic energy?

Back

Kinetic energy is the energy an object has due to its motion. The faster an object moves, the more kinetic energy it has.

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What is potential energy?

Back

Potential energy is the stored energy in an object due to its position or state. For example, a stretched rubber band has potential energy.

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How can energy be stored?

Back

Energy can be stored in various ways, such as in batteries, stretched rubber bands, or elevated objects (like a ball at the top of a hill).

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What is the relationship between speed and energy?

Back

The faster an object moves, the more kinetic energy it has. More energy can lead to greater speed.

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Why do athletes need energy?

Back

Athletes need energy to perform physical activities, as energy allows their muscles to move and function effectively.

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What is the role of food in providing energy?

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Food provides the nutrients and energy needed for the body to function, especially for athletes who require more energy for their activities.

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What happens when energy is transformed?

Back

When energy is transformed, it changes from one form to another, such as potential energy converting to kinetic energy when an object is released.

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What is an example of stored energy?

Back

A stretched rubber band is an example of stored energy, as it has potential energy that can be released to do work.

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How does a wind-up toy demonstrate energy?

Back

A wind-up toy stores energy in a coiled spring (potential energy) and converts it to kinetic energy when released, causing the toy to move.