Kinetic and Potential energy - Flashcard

Front

What is Potential Energy?

Back

Potential Energy is the energy stored in an object due to its position or state. It has the potential to be converted into kinetic energy.

Front

What is Kinetic Energy?

Back

Kinetic Energy is the energy of an object in motion. It depends on the mass of the object and the speed at which it is moving.

Front

How is Potential Energy calculated?

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 the height above the ground.

Front

How is Kinetic Energy calculated?

Back

Kinetic Energy (KE) is calculated using the formula: KE = 1/2 mv², where m is mass and v is the velocity of the object.

Front

What happens to Potential Energy as an object falls?

Back

As an object falls, its Potential Energy decreases while its Kinetic Energy increases, demonstrating the transformation of energy.

Front

What is the relationship between Potential Energy and height?

Back

Potential Energy increases with height; the higher an object is positioned, the more Potential Energy it has.

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 four times.

Front

In a pendulum, where is the Potential Energy highest?

Back

The Potential Energy is highest at the highest points of the swing, where the pendulum is momentarily at rest.

Front

In a pendulum, where is the Kinetic Energy highest?

Back

The Kinetic Energy is highest at the lowest point of the swing, where the pendulum is moving fastest.

Front

What is Mechanical Energy?

Back

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