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# GRAVITY CAR - DIY kit for Students

Updated: May 1

## GRAVITATIONAL ENERGY

The first law of thermodynamics stat es that energy is neither created nor destroyed. It can, however,be transformed from one form to another.One type of energy that weare most familiar with is kinetic energy, or the energy of movement.Gravitational potential energy is energy due to an object's position. An object in the air has gravitational potential energy because when released,it will begin to move and convert its stored energy into movement, or kinetic energy. Another example of t his is a twisted up rubber band: when you let go of the twists, it moves back to it s original form. Mechanical energy is energy that is use to do work, like move objects or power motors.

To summarize, potential energy is t he energy that is stored in an object due to its position relative to some zero position.An object possesses gravitational potential energy if it is positioned at a height above (or below) the zero height.

Gravitational energy is the movement of an object or mass that is caused by the pull of gravity.This is caused on Earth by the strong attraction of all other masses to be drawn back to Earth's center. An example of gravitational energy is water from a river

tumbling over a cliff to form a water all.

When an object is lifted from the ground,energy is created and stored in the objects' gravitational field. The amount of energy stored is directly related to the distance between the object and the ground. The higher an object is lifted,the more the energy is stored in the gravitational field and the more energy that object produces as it returns to Earth.

Gravitational energy is often harnessed and used as a source of clean power for consumption. Hydro power is energy produced by the force of falling water, such as water in a reservoir behind a dam. When the dam is open and water is allowed to pass through to lower ground, the energy from the force created is accessible.

## GRAVITY CAR:

A gravity car works by transforming the energy harnessed through a weight by gravity into mechanical energy to move itself forward.