Unit 4: Energy Review B

Front

What is energy efficiency?

Back

The percentage of energy put into a system that does useful work.

Front

What is a way to conserve energy at home?

Back

Using compact fluorescent lights.

Front

What is a disadvantage of solar panels?

Back

They are expensive to install.

Front

What is one disadvantage of wind energy?

Back

It must be transported from its source to where it is needed.

Front

How do you calculate daily energy consumption in kilowatt-hours (kWh)?

Back

Multiply the wattage (in kW) by the number of hours used.

Front

What is renewable energy?

Back

Energy that is collected from resources that are naturally replenished, such as sunlight, wind, and water.

Front

What is energy conservation?

Back

The practice of reducing energy use to save resources and reduce environmental impact.

Front

What are compact fluorescent lights?

Back

Energy-saving light bulbs that use less electricity than traditional incandescent bulbs.

Front

What is the role of insulation in energy conservation?

Back

Insulation helps to reduce heat loss in buildings, improving energy efficiency.

Front

What is the significance of energy conversion?

Back

The process of changing energy from one form to another, such as converting solar energy into electrical energy.