Energy and Sources

What are the two main types of energy?

• Thermal energy and sound energy

• Chemical energy and electrical energy

• Nuclear energy and light energy

• Kinetic energy and potential energy

Name one example of a renewable energy source.

• Solar energy

• Coal energy

• Geothermal energy

• Wind energy

How is energy converted into electricity?

• Electricity is generated by harnessing the power of sound waves

• Electricity generation involves using a generator to convert mechanical energy into electrical energy.

• Energy is directly converted into electricity without any intermediary steps

• Electricity is created by burning water

What are some methods to conserve energy?

• Not using public transportation, keeping the thermostat at extreme temperatures, using high-energy-consuming devices

• Turning off lights when not in use, using energy-efficient appliances, insulating homes, and using public transportation or carpooling.

• Leaving lights on all day, using outdated appliances, keeping windows open in extreme weather

• Driving alone in a gas-guzzling car, leaving electronics plugged in when not in use, using incandescent light bulbs

List three forms of energy.

• Sound energy

• Nuclear energy

• Kinetic energy, Potential energy, Thermal energy

• Chemical energy

What are sources of heat and light energy?

• Sun, fire, light bulbs, electric heaters

• Candles, wind turbines, ice cubes

Which type of energy comes from the sun?

• Lunar energy

• Solar energy

• Stellar energy

• Galactic energy

What is the process of converting sunlight into electricity called?

• Hydropower generation

• Solar thermal

• Wind energy conversion

• Solar photovoltaic

How can we reduce energy consumption at home?

• Use outdated, energy-consuming appliances

• Switch to energy-efficient appliances, unplug electronics when not in use, use natural lighting whenever possible, adjust thermostat settings, and properly insulate the home.

• Leave lights on all day

• Keep windows open while running the AC

What is the energy stored in food called?

• calories

• proteins

• carbohydrates

• joules