Energy and Energy Transfer Review

Front

What is potential energy?

Back

Potential energy is the energy stored in an object due to its position or state. For example, a ball held at a height has potential energy because of its position above the ground.

Front

What is kinetic energy?

Back

Kinetic energy is the energy of an object in motion. The faster an object moves, the more kinetic energy it has.

Front

How does energy transfer occur?

Back

Energy transfer occurs when energy moves from one object or system to another, such as when a ball rolls down a hill and transfers potential energy into kinetic energy.

Front

What happens to potential energy as an object falls?

Back

As an object falls, its potential energy decreases while its kinetic energy increases, assuming no other forces (like air resistance) are acting on it.

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

How does a hydroelectric plant generate electricity?

Back

A hydroelectric plant converts the potential energy of falling water into mechanical energy, which is then transformed into electrical energy.

Front

What is the relationship between height and potential energy?

Back

The higher an object is positioned, the greater its potential energy due to the gravitational force acting on it.

Front

What is an example of energy conversion in a car?

Back

In a car, chemical energy from fuel is converted into mechanical energy to move the car.

Front

What is an inclined plane?

Back

An inclined plane is a flat surface tilted at an angle, used to help raise or lower objects, demonstrating the conversion of potential energy to kinetic energy.

Front

What is mechanical energy?

Back

Mechanical energy is the sum of potential energy and kinetic energy in an object, representing the total energy of motion and position.