Conservation of Energy

Front

What is the law of conservation of energy?

Back

The law of conservation of energy states that energy cannot be created or destroyed, only transformed from one form to another.

Front

What are the two main types of mechanical energy?

Back

The two main types of mechanical energy are kinetic energy (energy of motion) and potential energy (stored energy due to position).

Front

What is kinetic energy?

Back

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

Front

What is potential energy?

Back

Potential energy is the energy stored in an object due to its position or state, such as gravitational potential energy (GPE) based on height.

Front

How does gravitational potential energy change as an object falls?

Back

As an object falls, its gravitational potential energy decreases while its kinetic energy increases, demonstrating energy transformation.

Front

What is sound energy?

Back

Sound energy is a form of energy produced by vibrating objects and transmitted through a medium (like air) as sound waves.

Front

What is nuclear energy?

Back

Nuclear energy is the energy released during nuclear reactions, particularly from the nucleus of an atom.

Front

What is the relationship between energy and work?

Back

Work is done when energy is transferred from one system to another, calculated as Work = Force x Distance.

Front

What is thermal energy?

Back

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

Front

What is the difference between renewable and non-renewable energy sources?

Back

Renewable energy sources can be replenished naturally (like solar and wind), while non-renewable sources (like fossil fuels) are finite.