Energy and Energy Transformations Flashcard

Front

What is kinetic energy?

Back

Kinetic energy is the energy an object possesses due to its motion. It depends on the mass of the object and the speed at which it is moving.

Front

What is potential energy?

Back

Potential energy is the stored energy in an object due to its position or state. It is often associated with the height of an object above the ground.

Front

At which points does a dropped ball have zero kinetic energy?

Back

A dropped ball has zero kinetic energy at the highest point (1st floor) and the lowest point (4th floor) when it is momentarily at rest.

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 factors affect gravitational potential energy?

Back

Gravitational potential energy depends on the height of the object above the ground and its mass.

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 an example of energy transformation?

Back

An example of energy transformation is when a car rolls down a hill, converting potential energy into kinetic energy.

Front

What is mechanical energy?

Back

Mechanical energy is the sum of kinetic and potential energy in an object that is used to do work.

Front

What is the relationship between kinetic and potential energy in a pendulum?

Back

In a pendulum, kinetic energy is highest at the lowest point of the swing, while potential energy is highest at the highest points of the swing.

Front

What is an example of kinetic to mechanical energy transformation?

Back

An example is a wind turbine, where the kinetic energy of wind is transformed into mechanical energy to generate electricity.