Electrical Power Distribution

Electrical Power Distribution

by SciDept Twenty Twenty-One

​Objectives: The students will...

1. to differentiate between current and voltage​

2. ​trace how electricity is distributed from power plants to our homes.

3. identify efficient ways on how to conserve electrical energy

4. ​identify sustainable ways to generate electricity

​Rest your eyes by closing them for 5 minutes.

Multiple Choice

Current is to water in a pipe and _____________ is to water pressure in a pipe.

• current

• voltage

• resistance

• energy

Multiple Choice

Current is measured in....

• Amperes

• Volts
• Ohms
• Coulombs

Multiple Choice

this is the symbol for a _____?

• switch
• light 
• battery
• wires

Multiple Choice

Voltage is measured in __.

• volts.
• watts.
• coulombs. 

Multiple Choice

What 'flows' in a wire?

• Protons
• Neutrons
• Atoms
• Electrons

Multiple Choice

Electricity that flows in a closed path is called a

• path
• current
• circuit

Multiple Choice

The flow/movement of electric charges 

• Voltage
• Resistance 
• Current 
• Circuit 

Multiple Choice

This is related to the force that causes electric charges to flow

• Voltage 
• Current
• Resistance
• Circuit 

electric currents

Multiple Choice

Which of these substances conducts electricity the best?

• wood
• brick
• copper
• plastic

Multiple Choice

What material would be safest to use as an insulator to cover electrical wires?

• rubber
• tin
• aluminum
• water

What is an electric current?

The flow of electric charges through a conductor.

Multiple Choice

Which statement is true?

• The light bulb will light up because the circuit is complete.

• The light bulb will light up because the circuit is broken.

• The light bulb will not light up because the circuit is complete.

• The light bulb will not light up because the circuit is open.

Multiple Choice

What is the unit of resistance ?

• Ω (Ohms)
• V (Volts)
• A (Amps)
• W (Watts)

Multiple Choice

AC stands for ___.

• Alternating Current

• Attraction Connections

• Cooling Current

• None

​Rest your eyes by closing them for 5 minutes.

Multiple Choice

National Grid Network consists of

• Power stations - step-up transformers - transmission lines - step-down transformers - consumers

• Power stations - transmission lines - step-up transformers - consumers - step-down transformers

• Power stations - step-down transformers - transmission lines -step-up transformers - consumers

• Power stations - step-up transformers - consumers - transmission lines - step-down transformers

Multiple Choice

Which of these might spin a generator at a power plant to produce electricity?

• wind

• water

• steam from burning coal

• all of these

Multiple Choice

What is the advantage of electricity transmission at high voltage?

• Increase the energy

• High current flow

• Reduce the heat dissipated in the electrical cable

• Reduce the resistance of transmission cable

Multiple Choice

Renewable energy sources can best be defined as

• resources that will regenerate in a million or more years

• resources that will regenerate in a generation or less

• resources that will regenerate in 10-20 million years

• resources that do not have the ability to regenerate

Multiple Choice

If the current is transmitted at high voltage...

• less energy is lost

• more energy is lost

• it produces alternating current

• underground cables are used

Multiple Choice

What is the use of a transformer?

• Step up the voltage

• Step down the voltage

• All the above

• None of those

Multiple Choice

A Generator used to convert ?

• Electrical energy to mechanical energy

• Mechanical energy to electrical energy

• Chomical energy to electrical energy

• Electrical energy to Chomical energy

Multiple Choice

National Grid Network consists of

• Power stations - step-up transformers - transmission lines - step-down transformers - consumers

• Power stations - transmission lines - step-up transformers - consumers - step-down transformers

• Power stations - step-down transformers - transmission lines -step-up transformers - consumers

• Power stations - step-up transformers - consumers - transmission lines - step-down transformers

Multiple Choice

What part of the electricity grid is this natural gas power plant in?

• generation

• transmission

• distribution

Multiple Choice

The power lines in this picture deliver electricity to the homes and businesses along this street. These lines are part of the grid's ___ system.

• generation

• transmission

• distribution

Multiple Choice

What part of the electricity grid are these high voltage power lines in?

• generation

• transmission

• distribution

Multiple Choice

What part of the electricity grid is this wind turbine farm in?

• generation

• transmission

• distribution

Multiple Choice

How is electricity distributed to our houses?

• Through the use of power plants

• via transmission lines

• through the use of turbines

• via distribution lines

Multiple Choice

How is electricity transmitted?

• via transmission lines

• via substations

• via distribution lines

• via water flow

Multiple Choice

How is electricity generated?

• By the use of turbines

• by the use of electricity

• by the use of sub stations

• by the use of transmission lines

Multiple Choice

Sally is creating a model to show what happens when electricity is used.  She decided to show the motor spinning below as her model. How could she best explain what is happening?

• Electric energy is transformed into energy of motion.
• Heat energy is transformed into energy of motion.
• Heat energy is transformed into electric energy.
• Electric energy is transformed into light energy.

Multiple Choice

Energy can't be .....

• transformed.

• made or destroyed.

• converted.

• harnessed or produced.