Electricity and Magnetism G9

According to the Law of Conservation of Energy, energy cannot be _________ or ____________.

• destroyed, destroyed

• created, saved

• created, destroyed

• lost, found

Energy transformations occur when...

• energy is created through conduction

• energy changes from one form to another

• two forces slide together that are touching

• a chemical reaction takes place

An industrial facility that makes electricity but converting other energy using a generator(s)

• power plant

• world wonder

• resource generator

• energy factory

Primary energy sources that are non renewable

• fossil fuels

• solar

• wind

• hydroelectric

What type of energy transformation takes place when a turbine spins a generator?

• mechanical to nuclear

• mechanical to electrical

• electrical to mechanical

• electrical to chemical

 Energy from the sun is known as......... 

• hydroelectric energy
• geothermal energy
• solar energy
• wind energy

Which of the following is a nonrenewable resource?

• milk
• coal
• biomass
• water

Tags

NGSS.MS-ESS3-4

If a river is located in a deep canyon, and has  changing amounts of water , how can this be developed as an energy source?

• A dam could be built to store water
• A well could be dug to hold the water
• Wind turbines could be built on the banks.
• You could fish in the river.

Tags

NGSS.MS-ETS1-1

NGSS.MS-ETS1-2

A device that changes mechanical energy to electrical energy is a _______________________

• generator

• magnet

• motor

• transformer

Which of the following is the best way to transmit electricity to the community?

• The generator creates electricity collected by power plants, submitted to distributing substations then transformed before used by the consumer

• The generator transform collected energies to electrical and collected by substations and are used by the community

• The generating power plant collects energy that is changed to electric by generators, submitted to distributing and area substations, and transformed to lower voltage before used by the community

• None of the above