📚 Part 1: Quick Concept Checks

1. Which energy source is considered most sustainable for Australia's future?

Coal

Solar

Natural gas

Nuclear

2. What is the main advantage of kinetic energy recovery systems in vehicles?

3. Select all sustainable design principles that apply to energy systems:

Reduce energy consumption

Use renewable sources

Maximise fossil fuel use

Design for energy efficiency

4. Critical Thinking: Why is energy storage crucial for renewable energy systems in Australia?

🔧 Part 2: Real-World Calculations & Design

5. Calculate the kinetic energy of a 1200 kg electric vehicle travelling at 60 km/h. Show all working and convert units appropriately. (KE = ½mv²)

6. A wind turbine blade is 45 metres above ground level and has a mass of 8000 kg. Calculate its potential energy. (PE = mgh, g = 9.8 m/s²)

7. Design Task: Sketch a sustainable energy system for a remote Australian town. Label at least 3 energy sources and 2 storage methods.

8. If solar panels convert 20% of incident solar energy (1000 W/m²) on a 50 m² array, calculate the electrical power output in kilowatts.

9. Critical Analysis: Compare the energy efficiency of a petrol car (30% efficient) versus an electric vehicle (90% efficient) for a 100 km journey. Explain which is more sustainable and why.

📊 Part 3: Evaluation & Application

10. Evaluate the advantages and disadvantages of installing solar panels versus wind turbines for a suburban Australian home. Consider at least 3 factors for each technology.

11. Design Challenge: You must design an energy-efficient school building. Describe 4 specific design features you would include and explain how each contributes to energy sustainability.

12. Which factor most limits the widespread adoption of renewable energy in Australia?

Technology limitations

Cost of installation

Energy storage challenges

Government policy