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WorksheetsRecap of Sessions 24 & 25
Total questions: 10
Worksheet time: 5mins
What is the main goal of using alternative energy sources?
To increase fossil fuel consumption
To minimise environmental impact
To reduce energy efficiency
To increase pollution
What do photovoltaic cells do?
Convert sunlight into heat
Store energy for later use
Convert sunlight directly into electricity
Use mirrors to focus sunlight
What is the primary function of solar thermal systems?
Convert sunlight into electricity
Heat water or air for domestic or industrial use
Store energy for cloudy days
Generate steam to drive turbines
What role does a compressor play in a heat pump?
Decreases the temperature of the extracted heat
Increases the temperature of the extracted heat
Distributes heat throughout the building
Extracts heat from the environment
What is the effect of a heat pump on a cool space?
Makes the cool space warmer
Makes the cool space cooler
Has no effect
Increases humidity
What is the role of turbines in hydroelectric power generation?
To store water at a higher elevation
To convert potential energy to kinetic energy
To turn and drive generators
To release water through tunnels
What is the main function of wind power?
To generate heat
To convert kinetic energy into electricity
To store energy
To reduce noise pollution
What is used to minimise air pollution in modern incineration plants?
Turbines
Boilers
Scrubbers and filters
Generators
What happens to the heat generated during incineration?
It is released into the atmosphere
It is used to boil water
It is stored for later use
It is wasted
What is a key factor influencing the feasibility of geothermal energy projects?
The color of the soil
The accessibility and temperature of geothermal resources
The amount of sunlight
The presence of wildlife
