4.5.2 Renewable Energy

• What is the definition of renewable energy?

  Energy from natural sources
• Renewable energy sources include solar, wind, hydroelectric, and geothermal
• Renewable energy sources are inexhaustible.
• Match the advantage of renewable energy with its description:

  Reduction of greenhouse gas emissions ↔️ Decreases environmental impact

  Inexhaustible resources ↔️ Ensures long-term energy availability

  Creation of jobs ↔️ Boosts local economies
• What is one major disadvantage of renewable energy?

  High initial cost
• The power generated can be calculated using the formula $P =$$\frac{E}{t}$, where $E$ represents energy and $t$ represents time
• Which renewable energy source creates the most noise pollution?

  Wind
• The power generated by renewable energy sources is calculated using the formula $P =$$\frac{E}{t}$, where $E$ is energy and $t$ is time
• Arrange the following types of renewable energy from least to most environmentally impactful:

  1️⃣ Solar

  2️⃣ Wind

  3️⃣ Hydroelectric

  4️⃣ Geothermal

  5️⃣ Biomass
• What is the primary energy source for hydroelectric power?

  Water
• Biomass energy is considered carbon neutral because it uses organic waste material.
• What is the formula for calculating power generated by wind energy?

  $P =$$\frac{1}{2} \rho A v^{3}$
• Renewable energy reduces greenhouse gas emissions and creates jobs
• Match the advantage of renewable energy with its benefit:

  Reduces greenhouse gas emissions ↔️ Combats climate change

  Inexhaustible resources ↔️ Ensures long-term energy security

  Creates jobs ↔️ Boosts local economies
• What is a significant disadvantage of intermittent renewable energy sources?

  Dependence on weather
• The power generated by renewable energy sources can be calculated using the formula $P =$$\frac{E}{t}$, where $E$ is energy and $t$ is time
• What is one advantage of renewable energy in terms of greenhouse gas emissions?

  Reduces greenhouse gas emissions
• Renewable energy sources are inexhaustible.
• What is one disadvantage of renewable energy related to wildlife?

  Visual and wildlife impact
• The formula for calculating power in renewable energy is P = \frac{E}{t}
• What is one advantage of renewable energy in terms of job creation?

  Creates jobs
• Renewable energy sources are available at all times of the day.

  False
• Renewable energy types include solar, wind, hydroelectric, and geothermal
• Which renewable energy type uses sunlight as its primary source?

  Solar
• Match the type of renewable energy with its primary source:

  Solar ↔️ Sunlight

  Wind ↔️ Wind

  Hydroelectric ↔️ Water

  Geothermal ↔️ Earth's internal heat

  Biomass ↔️ Organic matter
• Solar energy has low operating costs once established.
• Hydroelectric energy requires large dams
• What is the primary source of geothermal energy?

  Earth's internal heat
• What type of pollution can result from biomass energy?

  Air pollution
• The formula for calculating wind power is P = \frac{1}{2} \rho A v^{3}
• What does Q</latex> represent in the hydroelectric power formula $P =$$\rho g h Q$?


  Flow rate
• Geothermal energy is available in all locations.

  False
• Match the advantage of renewable energy with its benefit:

  Reduces greenhouse gas emissions ↔️ Combats climate change

  Inexhaustible resources ↔️ Long-term energy security

  Creates jobs ↔️ Economic growth and stability
• What is a major challenge in implementing renewable energy due to its high initial costs?

  High initial costs
• The intermittency of solar and wind energy depends on weather conditions.
• The production and disposal of renewable energy components can have environmental impact
• What was the primary goal of the Desertec project in the Sahara Desert?

  Generate solar energy
• Successful renewable energy projects are economically viable, environmentally sustainable, and socially acceptable.
• What three factors define a successful renewable energy project?

  Economic viability, sustainability, acceptability
• The Desertec project aimed to generate solar energy in the Sahara