L2 Unit 103 Energy Conversion

What type of energy do solar panels primarily convert into electricity?

• Thermal energy

• Chemical energy

• Solar energy

• Kinetic energy

What is the main component in a solar panel responsible for converting sunlight into electricity?

• Photovoltaic cells

• Reflective mirrors

• Copper wires

• Glass casing

In which direction should solar panels ideally face to maximize energy production in the Northern Hemisphere?

• East

• West

• South

• North

What type of energy do wind turbines primarily harness?

• Solar energy

• Thermal energy

• Wind energy

• Geothermal energy

What is the turning process of a wind turbine called

• Yawing

• Rotation

• Spin cycle

• Anemometer

What is the minimum wind speed required for most wind turbines to start generating electricity efficiently?

• 5 mph (8 km/h)

• 10 mph (16 km/h)

• 15 mph (24 km/h)

• 20 mph (32 km/h)

In hydroelectric power generation, what is used to turn the turbines and generate electricity?

• Solar panels

• Wind

• Water flow

• Geothermal heat

Which of the following is a common type of hydroelectric power plant that doesn't require a dam?

• Run-of-river

• Tidal

• Reservoir

• Geothermal

What is the environmental impact often associated with large dam-based hydroelectric power plants?

• Reduced greenhouse gas emissions

• Increased fish migration

• Displacement of communities and ecosystems

• Improved water quality

How do air source heat pumps extract heat for space heating or cooling?

• From the ground

• From the air

• From a water source

• From solar panels