Electricity and Energy Transformations Review

Front

What is mechanical energy?

Back

Mechanical energy is the energy that an object has due to its motion (kinetic energy) or its position (potential energy).

Front

How is mechanical energy transformed into electrical energy?

Back

Mechanical energy can be transformed into electrical energy using devices like wind turbines, where the movement of wind turns blades that generate electricity.

Front

What is a closed circuit?

Back

A closed circuit is a complete electrical circuit through which current can flow without interruption.

Front

What is an open circuit?

Back

An open circuit is a broken circuit where the path is interrupted, preventing current from flowing.

Front

What is chemical energy?

Back

Chemical energy is the energy stored in the bonds of chemical compounds, like food or batteries.

Front

How is chemical energy transformed into mechanical energy?

Back

Chemical energy is transformed into mechanical energy in engines or muscles, where fuel or food is converted into movement.

Front

What causes lightning?

Back

Lightning is caused by electrical charges that build up in storm clouds, resulting in a discharge of electricity.

Front

What is static electricity?

Back

Static electricity is the buildup of electric charge on the surface of objects, often caused by friction.

Front

What is the role of a battery in a circuit?

Back

A battery provides the electrical energy needed to push electrons through a circuit.

Front

What is a circuit diagram?

Back

A circuit diagram is a visual representation of an electrical circuit, showing the components and their connections.