Conservation of Energy

Front

What is the definition of Kinetic Energy?

Back

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

Front

What is the definition of Potential Energy?

Back

Potential Energy is the stored energy in an object due to its position or state. For example, a ball at the top of a hill has gravitational potential 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 happens to Potential Energy as an object falls?

Back

As an object falls, its Potential Energy decreases while its Kinetic Energy increases, keeping the total mechanical energy constant.

Front

What is Mechanical Energy?

Back

Mechanical Energy is the sum of Kinetic Energy and Potential Energy in a system.

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 Energy and speed?

Back

Kinetic Energy increases with the square of the speed. If the speed doubles, the Kinetic Energy increases by a factor of four.

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.

Front

What is the formula for calculating Potential Energy?

Back

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

Front

What is the significance of the highest point in a roller coaster?

Back

At the highest point, the roller coaster has maximum Potential Energy and minimum Kinetic Energy.