Circuits

Circuits

by Lauren Olivares

​Electrical Energy

​Electrical energy is the movement of electrically charged particles. It flows through devices to power them.

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​Electrical energy can be transformed into other forms of energy.

​Movement of Electrical Energy

​Electrical energy flows through circuit. ​

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​Circuit- a path that allows electric particles to flow.

​Movement of Electrical Energy

​​4 Parts to a circuit

​1. Power Source- where the electric particles come from

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​2. Wire- moves the electric particles.

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​3. Switch- turns the circuit on an off.

​4. Powered Device- Something to turn on.

​Movement of Electrical Energy

2 TYpes of Circuits

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​Series Circuit- the electrip particles will continue to move in the circuit.

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​Parallel Circuit- electric particles can flow through multiple branches.

​Flow of Electricity in a Circuit

​Electricity can only flow if the switch in the circuit is closed.

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​Electricity will continue to flow until it hits a resistor.

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​Resistor- an object where electricity flows through slowly.

​Electrical energy transforms in a resistor.

​Conductor vs. Insulator

• ​A conductor is a material through which an electric charge can move easily.

  • A resistor is a material through which an electric charge cannot move easily.

    As a current moves through a resistor some of the electrical energy transforms into thermal energy

• ​Insulators are such strong resistors that they can stop most electrical currents.

• Rubber, plastic, glass, and dry cotton.

• Many good electrical insulators are also good thermal insulators.

Multiple Choice

A path followed by an electric current

• open circuit
• flow
• current
• circuit

Multiple Choice

A complete electrical circuit or path through which electricity or current can pass or flow

• open circuit
• circuit
• closed circuit
• current

Multiple Choice

Material that allows electric current or thermal energy to pass through easily

• conductor
• insulator
• flow
• circuit

Multiple Choice

Material that slows down or stops electric current or thermal energy from passing through

• flow
• open circuit
• insulator
• conductor

Multiple Choice

A circuit or electrical path that is broken or incomplete so electricity cannot flow through it.

• open circuit
• conductor
• insulator
• closed circuit

Multiple Choice

Look at the diagram. What is the term for "B"?

• Wire

• Switch

• Resistor

• Voltage source/Battery

Multiple Choice

An example of a conductor of electricity is

• rubber

• plastic

• glass

• copper