Topic Summaries
Energy and the environment
Energy and power
Renewable energy and efficiency
Charge, current, and electric fields
Potential difference and resistors
Electricity
Volume and gases
States of matter and heat capacity
Radiation
Nuclear fusion and fission
Forces
Velocity and acceleration
Gravity and Newton's Laws
Moments and elastic potential
Stopping, braking, and momentum
Properties of waves
Electromagnetic waves
Refraction and lenses
Light, colour, and ray diagrams
Absorbing and emitting infrared radiation
Magnetic fields
Motor effect, generator effect, and transformers
Science skills: Experimental procedures
Science skills: Presenting and using data
Science skills: Measuring results
Energy and power
Renewable energy and efficiency
Charge, current, and electric fields
Potential difference and resistors
Electricity
Volume and gases
States of matter and heat capacity
Radiation
Nuclear fusion and fission
Forces
Velocity and acceleration
Gravity and Newton's Laws
Moments and elastic potential
Stopping, braking, and momentum
Properties of waves
Electromagnetic waves
Refraction and lenses
Light, colour, and ray diagrams
Absorbing and emitting infrared radiation
Magnetic fields
Motor effect, generator effect, and transformers
Science skills: Experimental procedures
Science skills: Presenting and using data
Science skills: Measuring results
- Fossil fuels will eventually run out in the next 100 years, meaning we will eventually have to switch to renewable energy resources.
- A nuclear power plant can generate much more energy than a fossil fuel power station. The resources for it are expected to last for thousands of years despite being non-renewable.
- The burning of fossil fuels causes carbon dioxide to be released into the environment, contributing to global warming.
- Nuclear power produces no pollutant gases. However, it does produce radioactive nuclear waste, which needs to be stored safely.
- Coal will also release sulfur dioxide when burned, which is a cause of acid rain.
- Bio-fuels are carbon neutral, as the carbon dioxide they release is the same as that taken in before their use as a fuel.
- Power stations can have a negative effect on the areas where they are constructed.
- Wind turbines can be loud and potentially harmful to birds.
- Hydro-electric dams will cause a new lake to form behind them. This can destroy natural habitats and force people to move homes.
- Renewable energy resources, such as wind and solar, are entirely weather-dependent. Many countries have systems that switch from these resources to fossil fuels when renewable energy isn’t available.
Unlock Energy and the environment
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