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Characteristics of Electricity

Grade 7 Science Worksheets

Electricity is a form of energy that is all around us. It is what makes things like lights turn on and appliances work. It is a flow of tiny particles called electrons that move through materials called conductors.

Table of Contents:

  • Characteristics of Electricity
  • FAQs
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Characteristics of Electricity - Grade 7 Science Worksheet PDF

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Think of electricity like water flowing through a pipe. Just like how water needs a pipe to flow through, electricity needs a conductor, like a wire, to flow through. And just like how we can control the flow of water in a pipe by using a valve, we can control the flow of electricity by using things like switches and outlets.

Electricity can also be stored in batteries, like the ones in your flashlight or phone. This stored electricity can be used later when there is no other source of electricity available.

In short, electricity is a form of energy that allows things like lights and appliances to work, it travels through conductors, can be controlled by switches and outlets and can also be stored in batteries.

 

Characteristics of Electricity

These are some of the characteristics of electricity with examples:

Conductivity: Electricity can flow through certain materials called conductors, such as metals. Conductors allow electrons to flow freely, allowing electricity to pass through. Examples of good conductors include copper, aluminum, and gold.

 

electricity conductors

 

Voltage: Voltage is a measure of the electrical potential difference between two points. It is often referred to as “electrical pressure” and is measured in volts (V). For example, a common voltage in a household electrical circuit is 120 V. A higher voltage means a greater amount of electrical energy is available to do work.

Current: Current is a measure of the flow of electric charge in a circuit. It is measured in amperes (A) and is affected by factors such as the voltage and the resistance of the circuit. A common example of current is the flow of electric charge through a light bulb, which causes it to light up.

 

characteristics of electricity

 

Resistance: Resistance is a measure of how difficult it is for electricity to flow through a material. It is measured in ohms (Ω). Materials that have high resistance, such as rubber, are called insulators and do not allow electricity to flow through them easily. examples of materials that have low resistance are copper, gold, and aluminum, they are good conductors.

Power: Power is the rate at which energy is used or converted. It is measured in watts (W) and is the product of voltage and current. An example of power usage is a 100-watt light bulb that is on for one hour uses 100 watt-hours of energy.

Energy: Energy is the ability to do work and is measured in joules (J). Electric energy is the energy that results from the movement of electric charge. An example of electric energy is the energy stored in a battery that powers a flashlight.

These are some of the main characteristics of electricity, and they are all interrelated and affect the behavior of electric circuits.

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Characteristics of Electricity FAQS

What is electricity?

Electricity is a form of energy that results from the movement of charged particles, such as electrons or ions.

What are the characteristics of electricity?

The main characteristics of electricity include voltage, current, resistance, power, and frequency.

What is voltage?

Voltage, also known as electric potential difference, is the measure of the electric potential energy per unit charge in an electrical circuit. It is measured in volts (V).

What is current?

Current is the flow of electric charge in an electrical circuit. It is measured in amperes (A).

What is resistance?

Resistance is the measure of the opposition to the flow of electric current in an electrical circuit. It is measured in ohms (Ω).

What is power?

Power is the rate at which energy is transferred or used in an electrical circuit. It is measured in watts (W).

What is frequency?

Frequency is the number of cycles per second of an alternating current. It is measured in hertz (Hz).

What is direct current (DC)?

Direct current is a type of electric current that flows in one direction only. It is often produced by batteries or power supplies.

What is alternating current (AC)?

Alternating current is a type of electric current that periodically reverses direction. It is commonly used in homes and businesses for powering electrical devices.

How is electricity produced?

Electricity can be produced by a variety of methods, including generators powered by fossil fuels, nuclear reactors, wind turbines, solar panels, and hydroelectric dams.

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