Energy Change and Conservation

Front

What is energy change?

Back

Energy change refers to the transformation of energy from one form to another, such as from chemical energy in fuel to thermal energy when burned.

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What is energy conservation?

Back

Energy conservation is the practice of using less energy by being more efficient or reducing waste, ensuring that energy resources are preserved for future use.

Front

What are the two main types of energy?

Back

The two main types of energy are kinetic energy (energy of motion) and potential energy (stored energy based on position).

Front

What happens to energy when wood is burned?

Back

When wood is burned, chemical energy stored in the wood is transformed into thermal energy (heat) and light energy (electromagnetic radiation).

Front

What is kinetic energy?

Back

Kinetic energy is the energy an object possesses 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?

Back

Potential energy is the energy stored in an object due to its position or state, such as a rock at the top of a hill or a stretched spring.

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How does energy transfer occur?

Back

Energy transfer occurs when energy moves from one object or system to another without changing its form, such as heat moving from a hot stove to a pot.

Front

What is the difference between energy transfer and energy transformation?

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Energy transfer is the movement of energy from one place to another, while energy transformation is the change of energy from one form to another.

Front

What is an example of energy transformation in a swing?

Back

As a swing moves, potential energy at the highest point transforms into kinetic energy as it swings down.

Front

What is thermal energy?

Back

Thermal energy is the total kinetic energy of particles in a substance, related to its temperature.