Energy Transformations and Renewable Sources

Front

What is hydropower?

Back

Hydropower is energy derived from the movement of water, typically generated by dams that convert the kinetic energy of flowing water into electricity.

Front

How does the Sun's energy primarily get used on Earth?

Back

Most of the Sun's energy heats the seas, land, and atmosphere, driving weather patterns and climate.

Front

What are the energy transformations that occur when a flashlight is turned on?

Back

The energy transformations are from chemical energy (in the batteries) to electrical energy (when the flashlight is switched on) to light energy (the light emitted from the bulb).

Front

What is the benefit of converting from coal heating to wind energy?

Back

Converting from coal heating to wind energy reduces the use of fossil fuels, leading to lower greenhouse gas emissions and a more sustainable energy source.

Front

Which of the following energy sources are renewable: Biomass, Hydroelectric, Geothermal, Wind, Solar?

Back

These energy sources are renewable because they can be replenished naturally and are sustainable over time.

Front

What is the definition of renewable energy?

Back

Renewable energy is energy that is collected from resources that are naturally replenished, such as sunlight, wind, rain, tides, waves, and geothermal heat.

Front

What is the role of solar energy in the water cycle?

Back

Solar energy drives the water cycle by heating water in oceans and lakes, causing evaporation, which leads to cloud formation and precipitation.

Front

What is the difference between renewable and non-renewable energy sources?

Back

Renewable energy sources can be replenished naturally (e.g., solar, wind), while non-renewable sources (e.g., coal, oil) are finite and can be depleted.

Front

What is biomass energy?

Back

Biomass energy is produced from organic materials, such as plant and animal waste, which can be burned or converted into biofuels.

Front

How does geothermal energy work?

Back

Geothermal energy harnesses heat from beneath the Earth's surface to generate electricity or provide direct heating.