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 is Kinetic Energy (KE)?

Back

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

Front

What is Gravitational Potential Energy (GPE)?

Back

Gravitational Potential Energy is the energy an object possesses due to its position in a gravitational field, calculated using the formula GPE = mgh, where m is mass, g is the acceleration due to gravity, and h is height.

Front

How does energy transform in a falling object?

Back

As an object falls, its GPE decreases while its KE increases, demonstrating the transformation of energy from potential to kinetic.

Front

What happens to the total mechanical energy in a closed system?

Back

In a closed system, the total mechanical energy (sum of KE and GPE) remains constant, assuming no energy is lost to friction or air resistance.

Front

What is the formula for calculating Kinetic Energy?

Back

The formula for calculating Kinetic Energy is KE = 1/2 mv².

Front

What is the formula for calculating Gravitational Potential Energy?

Back

The formula for calculating Gravitational Potential Energy is GPE = mgh.

Front

At what point is Kinetic Energy maximum in a free-falling object?

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Kinetic Energy is maximum just before the object hits the ground, as all potential energy has been converted to kinetic energy.

Front

At what point is Gravitational Potential Energy maximum in a free-falling object?

Back

Gravitational Potential Energy is maximum at the highest point of the object's path, where its height is greatest.

Front

What is the relationship between height and GPE?

Back

Gravitational Potential Energy increases with height; as an object's height increases, its GPE increases.