The Grid

What is happening at stage 3 in the diagram?

• fuel is burned to boil water to make steam

• steam makes a turbine spin

• the spinning turbine turns a generator which produces electricity

• the electricity goes to the transformers to produce the correct voltage

Tags

NGSS.HS-PS3-3

What is happening at stage 4 in the diagram?

• fuel is burned to boil water to make steam

• steam makes a turbine spin

• the spinning turbine turns a generator which produces electricity

• the electricity goes to the transformers to produce the correct voltage

Tags

NGSS.HS-PS3-4

What type of transformer is this?

• Step-up

• Step-down

Tags

NGSS.HS-PS2-5

NGSS.HS-PS3-3

NGSS.HS-PS3-5

Why does the national grid transfer electricity at high voltages?

• To decrease the amount of energy lost as heat

• To make sure people don't touch the cables

• Power stations produce electricity at very high voltages and voltages can't be changed.

What is the primary reason transformers are used in the National Grid?

• To increase efficiency by reducing energy loss as heat

• To convert AC to DC for household appliances

• To generate electricity

• To store excess electricity

Tags

NGSS.HS-PS2-5

Why is high voltage used to transmit electricity over long distances in the National Grid?

• To increase the speed of electricity

• To reduce energy loss as heat

• To make the electricity safer

• To increase the electricity's frequency

What is the primary function of the National Grid?

• To generate electricity

• To store electricity

• To distribute electricity across the country

• To convert AC to DC

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

• generation

• transmission

• distribution

Tags

NGSS.HS-PS2-5

These power lines carry high voltage electricity for hundreds of miles across California. These lines are part of the grid's ___ system.

• generation

• transmission

• distribution

Tags

NGSS.MS-ETS1-2

This image shows the ___.

• electricity grid

• water system

• road and highway system

Tags

NGSS.HS-ETS1-1

NGSS.HS-PS3-1