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 is the energy that has the potential to do work.

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 does Potential Energy change in a pendulum?

Back

As a pendulum swings from its highest point to its lowest point, its potential energy decreases while its kinetic energy increases.

Front

At which position does a roller coaster have the most Potential Energy?

Back

A roller coaster has the most gravitational potential energy at its highest point.

Front

At which position does a roller coaster have the most Kinetic Energy?

Back

A roller coaster has the most kinetic energy at its lowest point.

Front

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

Back

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

Front

What is the formula for Kinetic Energy?

Back

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

Front

What is the formula for Potential Energy?

Back

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

Front

What is the relationship between height and Potential Energy?

Back

The higher an object is positioned, the greater its potential energy, as potential energy is directly proportional to height.

Front

What is the relationship between speed and Kinetic Energy?

Back

Kinetic energy increases with the square of the speed; if the speed doubles, the kinetic energy increases by a factor of four.