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

Define Potential Energy.

Back

Potential Energy is the energy stored in an object due to its position or configuration, often related to its height above the ground.

Front

Define Kinetic Energy.

Back

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

Front

What is Total Mechanical Energy?

Back

Total Mechanical Energy is the sum of an object's potential energy and kinetic energy.

Front

How does height affect Potential Energy?

Back

Potential Energy increases with height; the higher an object is, the more potential energy it has due to gravitational force.

Front

What is the relationship between Kinetic and Potential Energy in a closed system?

Back

In a closed system, as potential energy decreases, kinetic energy increases, and vice versa, keeping the total mechanical energy constant.

Front

What is the formula for calculating Potential Energy?

Back

Potential Energy (PE) = mgh, where m is mass, g is the acceleration due to gravity, and h is height.

Front

What is the formula for calculating Kinetic Energy?

Back

Kinetic Energy (KE) = 1/2 mv², where m is mass and v is velocity.

Front

What happens to Total Mechanical Energy when friction is neglected?

Back

When friction is neglected, Total Mechanical Energy remains constant throughout the motion.

Front

What is an example of energy transformation?

Back

An example of energy transformation is a roller coaster: as it climbs, kinetic energy is converted to potential energy, and as it descends, potential energy is converted back to kinetic energy.