Conservation of Energy

Front

What is the principle of conservation of energy?

Back

The principle 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 kinetic energy?

Back

Kinetic energy is the energy of an object in motion, calculated as KE = 1/2 mv², where m is mass and v is velocity.

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What is potential energy?

Back

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

Front

What happens to energy during a phase change?

Back

During a phase change, energy is absorbed or released, but the total energy of the system remains constant.

Front

What is thermal energy?

Back

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

Front

How does energy transfer occur?

Back

Energy transfer occurs through processes such as conduction, convection, and radiation.

Front

What is work in physics?

Back

Work is done when a force causes an object to move in the direction of the force, calculated as Work = Force x Distance.

Front

What is the relationship between force and motion?

Back

Force is required to change the motion of an object; it can cause an object to start moving, stop moving, or change direction.

Front

What is an example of energy transformation?

Back

An example of energy transformation is a battery converting chemical energy into electrical energy to power a device.

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What is the significance of energy efficiency?

Back

Energy efficiency refers to using less energy to perform the same task, reducing waste and conserving resources.