Energy Conservation

Front

What is energy conservation?

Back

Energy conservation is the practice of reducing energy use and waste, ensuring that energy is used efficiently and sustainably.

Front

What is gravitational potential energy?

Back

Gravitational potential energy is the energy an object possesses due to its height above the ground, calculated as PE = mgh, where m is mass, g is acceleration due to gravity, and h is height.

Front

What is kinetic energy?

Back

Kinetic energy is the energy an object has due to its motion, calculated as KE = 1/2 mv², where m is mass and v is velocity.

Front

What happens to potential energy as an object falls?

Back

As an object falls, its potential energy decreases while its kinetic energy increases, conserving the total mechanical energy.

Front

What is the SI unit of energy?

Back

The SI unit of energy is the Joule (J).

Front

How does the height of an object affect its potential energy?

Back

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

Front

What is the relationship between kinetic energy and speed?

Back

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

Front

When does an object have maximum potential energy?

Back

An object has maximum potential energy at its highest point above the ground.

Front

What is the principle of conservation of energy?

Back

The principle of conservation of energy states that energy cannot be created or destroyed, only transformed from one form to another.

Front

What type of energy does a roller coaster have at the top of a hill?

Back

At the top of a hill, a roller coaster primarily has potential energy.