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P1P2P3 Revision

Revise for the P1P2P3 exam

QuestionAnswer
Radiation that is not reflected or transmitted is absorbed
How close you are to a quantitative results true or actual value accuracy
risk calculated from reliable data actual risk
Wire that emits radio waves aerial
Equipment used to measure current ammeter
Unit of measuring current ampere/amp
Device used to increase the amplitude of an electrical signal amplifier
The height of a wave amplitude
Signals that can vary continuously and have any value analogue
The layer of gas that surrounds the earth atmosphere
The currently accepted scientific explanation for the creation of the universe big bang
Average weather in a region over many years. Climate
A rocky lump held together by ice and frozen gases that orbits the Sun comet
Theory that describes extremely slow movement of continents across the Earth Continental Drift
A string on 1s and 0s used to represent an analogue signal Digital code
An event where rocks break to allow tectonic plate movement, causing the ground to shake earthquake
The "family" of different electromagnetic waves of different frequencies and wavelengths Electromagnetic Spectrum
Give out radiation emit
The movement of solids on the Earth's surface by wind, water, ice etc erosion
A collection of thousands of millions of stars galaxy
The most penetrating type of ionising radiation, most energetic part of the electromagnetic spectrum gamma rays
A device used to generate electricity by spinning a magnet near a coil generator
A power station using energy from hot underground rocks geothermal power station
Atmosphere absorbs infra red radiation and radiates it back to the surface warming it Greenhouse Effect
Carbon dioxide, methane and water vapour Greenhouse gases
Electromagnetic waves with a frequency lower than visible light beyond the red end of the spectrum Infra red
Radiation with enough energy to remove electrons, eg UV, X rays and Gamma Ionising
Unit used to measure energy use over time Kilowatt-hour
Distance travelled by light in one year light year
A wave where the particles in a medium vibrate in the same direction as the wave is travelling longitudinal
Thick layer of rock below the Earth's crust mantle
Galaxy where our Sun and Solar System are found Milky Way
Network of cables and transformers that connect power stations to homes National Grid
Thin layer of O3 molecules that absorb UV radiation Ozone layer
Method of measuring the distance of stars based on taking measurements from different places on Earth Parallax
A packet of electromagnetic radiation, the energy of which is proportional to the radiation's frequency photon
A longitudinal seismic wave produced by an earthquake P Wave
when radiation is observed to have a longer wave length than expected Red shift
A resource that can be used to generate electricity without being used up Renewable Energy source
A flow diagram to show what happens to energy in a device Sankey Diagram
Rock formed from layers of sediment sedimentary rock
300 000km per second The speed of light
A transverse wave produced during an earthquake S Wave
A wave in which the particles move at right angles to the direction of travel Transverse wave
Unit of power watt
The speed at which a wave moves wave speed
The distance from one wave crest to the next Wavelength
Power = voltage x current
UK mains voltage is 230V
Wave speed = wave length x frequency
Created by: tajdean
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