electricity
Definition
Electricity is a form of energy that is created by the movement of electrons. Electrons are tiny particles that carry a negative electrical charge. They are found in all atoms, and they can move from atom to atom. When electrons move, they create an electric current.
The amount of electricity that is flowing through a conductor is measured in amperes. The voltage of electricity is the difference in electrical potential between two points. The power of electricity is the rate at which it is being used.
Electricity can be generated in many ways, such as by burning fossil fuels, using nuclear power, or by harnessing the power of wind and water. It can be stored in batteries or capacitors.
Electricity is an essential part of modern life. It is used to power our homes, businesses, and transportation systems. It is also used to generate heat, light, and motion.
How can the word be used?
Electric current is the flow of electric charge through a conductor.
Different forms of the word
Noun: electricity, electric charge, electric current, electric field.
Adjective: electric, electrical, electrified.
Verb: to electrify, charge, energize.
Synonym: power, energy, voltage.
Antonym: stillness, calm, peace.
Etymology
The word "electricity" comes from the Greek word elektron, which means "amber". Amber is a fossilized tree resin that can be rubbed to produce a static electric charge.
Question
How is electricity generated?
AQA Science Exam Question and Answer
Question:
Explain the concept of electricity and its importance in our daily lives. Describe how electric charges and electrons play a fundamental role in the generation and flow of electricity. Provide examples of everyday applications of electricity and the significance of understanding electrical safety in using electrical devices.
Answer:
Electricity is the flow of electric charges, primarily carried by electrons, through conductive materials. It is a fundamental force that powers our modern world and plays a crucial role in our daily lives. When electric charges move from one place to another, they create an electric current that can be harnessed to do work.
Examples of everyday applications of electricity include lighting our homes, powering electronic devices like smartphones and computers, and running appliances like refrigerators and washing machines.
Understanding electrical safety is of utmost importance, as mishandling electrical devices can lead to shocks, fires, or other hazards. Always use properly grounded outlets, avoid overloading circuits, and be cautious around electrical wires and devices.
Appreciating the concept of electricity and practicing electrical safety allow us to harness its potential for convenience and advancement while safeguarding ourselves and our surroundings from potential risks.