Energy and Energy Efficiency

Solar photovoltaic panels on homes and other building areas create ?

• Heat energy

• Polaroids

• Electrical energy

The law of conservation of energy states that when one form of energy is converted into another,

• energy is destroyed in the process
• no energy is destroyed in the process
• energy is created in the process
• some amount of energy cannot be accounted for

Tags

NGSS.HS-PS3-3

Heat energy is also called ______ energy.

• chemical

• electrical

• mechanical

• thermal

Tags

NGSS.MS-PS1-4

The process of energy changing from one form into another

• efficency
• law of conservation of energy
• energy transformation
• thermal energy

Tags

NGSS.MS-PS3-3

NGSS.MS-PS3-4

NGSS.MS-PS3-5

A material that reduces or prevents the transfer of energy.

• conductor
• conduction
• radiation
• insulator

A material that transfers energy easily.

• insulator
• heat
• conduction
• conductor

To increase the EFFICIENCY of energy use, we could...

• Turn off lights when not in use
• Keep the car running as you go into the store
• Water the plants in a drought

Tags

NGSS.MS-PS3-3

Efficiency is...

• The percentage of energy that is actually used to do work
• The stuff in the walls that keeps energy in

Tags

NGSS.MS-PS3-5

Leaving lights on in vacant rooms, washing clothes in hot water, and driving alone are examples of what?

• low energy efficiency
• moderate energy efficiency
• high energy efficiency

This energy comes from heat, such as geysers, beneath earth’s surface.  

• Biomass 
• Geothermal 
• Solar
• Oil