Conservation of Electrical Energy (Integrated Science)

In the Caribbean, how do we obtain MOST of our electrical energy?

• by converting solar energy

• by burning fossil fuels

• by harnessing wind energy

• by converting nuclear energy

Which of the following is /are good reasons to conserve how much electrical energy we consume?

• generating electricity produces pollution

• conserving electricity saves on our electricity bill

• fossil fuels are a non-renewable resource

• all of these

Which of the following is NOT a good way to reduce energy consumption in the home?

• Use clothes lines for drying instead of electric dryers

• Switch off appliances when not in use

• Install water heaters

• Wash small loads of clothes

Which of the following lamps uses a coil of wire that heats up and glows to produce light?

• Filament Lamp

• Compact Fluorescsent Lamp (CFL)

• Light Emitting Diode

  (LED)

Which of the following lamps uses toxic mercury gas?

• Filament Lamp

• Compact Fluorescent Lamp

  (CFL)

• Light Emitting Diode

  (LED)

Which of the following lamps has the highest lifetime (last longest)?

• Filament Lamp

• Compact Fluorescent Lamp

  (CFL)

• Light Emitting Diode

  (LED)

Which of the following lamps has the LOWEST efficiency (i.e. wastes the most energy as heat)?

• Filament Lamp

• Compact Fluorescent Lamp

  (CFL)

• Light Emitting Diode

  (LED)

Tags

NGSS.MS-PS3-3