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P1 - Core Physics
This is the first part of the core Physics syllabus. It comprises of sections on Energy, temperature and the transfer of heat energy; electricity (its generation and transmission) and environmental issues surrounding energy use including energy efficiency.
The second section of the core Physics course continues with sections on waves, the electromagnetic spectrum; the Solar system; Stars and the Universe.
The second section of the core Physics course continues with sections on waves, the electromagnetic spectrum; the Solar system; Stars and the Universe.
Website links to information on the transmission of electricity
- Copper’s role in electricity (go to Site map and then Copper and electricity)
- Centre for alternative Technology, Wales
- Wind energy (go to Wind farms of the UK then dynamic map of operational projects)
- Access to National Government
- Compares energy resources, has an online calculator
- Electricity generation FAQ
- Wind farm, Scarweather Sands, Swansea Bay (search for Scarweather)
Energy efficiency and heating the home
Greenhouse effect video
Energy sources for generating electricity video
Calculate your Carbon Footprint here
Waves and electromagnetic radiation
The next section of the P1 core Physics course is about waves and electromagnetic radiation.
The electromagnetic spectrum is a family of waves which are: radio waves; microwaves; infra-red; visible light; ultra violet; X-rays and gamma rays. Radio waves have the largest wavelength and the lowest frequency and gamma rays have the shortest wavelength and the highest frequency.
All these waves travel at the same speed as each other - this is known as the speed of light - although light is just one part of the spectrum.
The electromagnetic spectrum is a family of waves which are: radio waves; microwaves; infra-red; visible light; ultra violet; X-rays and gamma rays. Radio waves have the largest wavelength and the lowest frequency and gamma rays have the shortest wavelength and the highest frequency.
All these waves travel at the same speed as each other - this is known as the speed of light - although light is just one part of the spectrum.
Weblinks to sites for Waves and electromagnetic radiation
Fibre optics
Transmission of information by fibre optics has improved communication in many ways.
They have several benefits; they are not easy to tap into; the messages sent through optical fibres travel at the speed of light and fibre optics can carry more signals than wires.
Fibre optic cables are made up of many individual glass fibres.
They have several benefits; they are not easy to tap into; the messages sent through optical fibres travel at the speed of light and fibre optics can carry more signals than wires.
Fibre optic cables are made up of many individual glass fibres.
Weblinks to Stars and the Universe
Universe and Stars videos
The solar system and beyond - just sit back and listen!
The Universe - life and death of stars
OK everyone, here are the two videos we watched in class about the birth and death of stars.
I have included all five video links here although we only watched parts one and two in class - I thought you might like to see the entire series!
I have included all five video links here although we only watched parts one and two in class - I thought you might like to see the entire series!
Additional Physics - Year 10 Studies
You will begin your Year 10 studies by learning the content of the Additional Physics syllabus. During this year you will also do a piece of coursework.
P2 - Additional Physics
Additional Physics consists of several topics:
Radiation - radioactive emissions; the half life of radioactive materials and uses and dangers of radioactivity.
Electrical circuits and safety features in mains electrical circuits.
Forces and Motion:
Distance, speed and acceleration; the effect of forces and interactions between objects.
Radiation - radioactive emissions; the half life of radioactive materials and uses and dangers of radioactivity.
Electrical circuits and safety features in mains electrical circuits.
Forces and Motion:
Distance, speed and acceleration; the effect of forces and interactions between objects.
Radioactivity
Nuclear energy videos
Electricity weblinks
Lightning strikes video link
Forces weblinks
Some excellent presentations (just click on the link)
Video Bar (below)
Here are a couple of crash tests for you to see. Pay attention to the crumple zone at the front of the car. This area allows the time taken for the change in momentum to occur to be longer, so reducing the force acting on the car.
Newton's first law
General Links
Below are a list of links you may find useful in your studies.
General Physics Revision Links
P3 Further Physics - Year 11
You will study the Further Physics P3 syllabus during Year 11. You will also do another piece of coursework during this year.
Physics 3 (Further Physics)
The further Physics section of the course contains the following topics:
How do forces have a turning effect?
Even if the forces acting on a body are balanced in the sense that they do not cause the body to change speed, they can still make the body turn.
What keeps bodies moving in a circle?
A body remains stationary, or keeps moving at the same speed in a straight line, unless an unbalanced force acts upon it. If a body moves in a circular path there must be an unbalanced force acting upon it all the time.
What provides the centripetal force for planets and satellites?
The planets, like the Earth, orbit the Sun. Artificial satellites, which are used for communications and monitoring, orbit the Earth. Gravitational force provides the centripetal force that allows all of these bodies to orbit.
What do mirrors and lenses do to light?
Mirrors and lenses can be used to form images in optical devices such as cameras and magnifying glasses. The most commonly used mirrors and lenses have surfaces with a uniform curvature and these are the only ones that need to be considered. All objects and images will be located vertically on the principal axis.
What is sound?
Sounds are mechanical vibrations that can be detected by the human ear. This means they are in the frequency range 20–20 000 Hz.
What is ultrasound and how can it be used?
Just as there is electromagnetic radiation with frequencies we cannot see, there are ‘sound’ waves with frequencies we cannot hear. These ultrasound waves have several important uses.
How can electricity be used to make things move?
Electric currents produce magnetic fields. Forces produced in magnetic fields can be used to make things move. This is called ‘the motor effect’ and is how devices, such as the electric motor and circuit breakers, create movement.
How do generators work?
If an electrical conductor ‘cuts’ through magnetic field lines, an electrical potential difference is induced across the ends of the conductor. This is called the ‘generator effect’ and is used in generators to produce electricity.
How do transformers work?
Transformers are used to step-up (increase) or step-down (decrease) a.c. potential differences.
What is the life history of stars?
Astronomers believe that gravitational forces are responsible for the formation of galaxies of stars, and for stars like the Sun having a long stable period.
How do forces have a turning effect?
Even if the forces acting on a body are balanced in the sense that they do not cause the body to change speed, they can still make the body turn.
What keeps bodies moving in a circle?
A body remains stationary, or keeps moving at the same speed in a straight line, unless an unbalanced force acts upon it. If a body moves in a circular path there must be an unbalanced force acting upon it all the time.
What provides the centripetal force for planets and satellites?
The planets, like the Earth, orbit the Sun. Artificial satellites, which are used for communications and monitoring, orbit the Earth. Gravitational force provides the centripetal force that allows all of these bodies to orbit.
What do mirrors and lenses do to light?
Mirrors and lenses can be used to form images in optical devices such as cameras and magnifying glasses. The most commonly used mirrors and lenses have surfaces with a uniform curvature and these are the only ones that need to be considered. All objects and images will be located vertically on the principal axis.
What is sound?
Sounds are mechanical vibrations that can be detected by the human ear. This means they are in the frequency range 20–20 000 Hz.
What is ultrasound and how can it be used?
Just as there is electromagnetic radiation with frequencies we cannot see, there are ‘sound’ waves with frequencies we cannot hear. These ultrasound waves have several important uses.
How can electricity be used to make things move?
Electric currents produce magnetic fields. Forces produced in magnetic fields can be used to make things move. This is called ‘the motor effect’ and is how devices, such as the electric motor and circuit breakers, create movement.
How do generators work?
If an electrical conductor ‘cuts’ through magnetic field lines, an electrical potential difference is induced across the ends of the conductor. This is called the ‘generator effect’ and is used in generators to produce electricity.
How do transformers work?
Transformers are used to step-up (increase) or step-down (decrease) a.c. potential differences.
What is the life history of stars?
Astronomers believe that gravitational forces are responsible for the formation of galaxies of stars, and for stars like the Sun having a long stable period.
Saturday, 3 November 2007
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