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Definition
| The curved path an object follows around another object in space. |
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| A device used to study space. |
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| The body part that can be used to look into the night sky. |
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Definition
| The part of the electromagnetic spectrum that we can see. |
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Definition
| The name given to waves in the EM spectrum that we can see. |
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Definition
| The name given to waves in the EM spectrum that have the longest wavelength. |
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Definition
| The waves in the EM spectrum that can be used for heating water and sending signals. |
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Definition
| The name given to light changing speed and direction between two materials. |
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Definition
| The point where two things interact or meet. |
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| The imaginary line at right angles to a surface. |
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Definition
| An object that refracts light in a way that makes it diverge or converge. |
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Definition
| A lens which focuses light inwards onto a point. Also called convex. |
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Definition
| A lens which focuses light inwards onto a point. Also called converging. |
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Definition
| When rays of light come together towards a point. |
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| The distance between lens and focussed image. |
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| The visable reproduction of an object, e.g. by a lens. |
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| A telescope which uses lenses and not mirrors. |
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Definition
| A lens which magnifies the image. |
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Definition
| The lens found in the place you look into on a telescope. |
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Definition
| An image which can be projected onto a screen. |
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| An image which appears to exist if you look through a lens but you cannot project. |
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Definition
| A telescope that uses a curved mirror and lens. |
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Definition
| The curved mirror in a telescope that light first reflects off. |
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Definition
| Move from place to place. |
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Definition
| Waves where the movement is at right angles to the direction of travel. |
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Definition
| "Light waves" found anywhere in the EM spectrum. |
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Definition
| Waves generated by noise. |
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Definition
| Waves where the movement is along the direction of travel. |
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Definition
| Waves created by earthquakes. |
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Definition
| How many waves pass per second. |
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| The unit for frequency meaning once per second. |
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| The "height" of a wave or how much it is displaced. |
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Definition
| The region of the electromagnetic spectrum that is produced by all objects with heat. |
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Definition
| The region of the electromagnetic spectrum that is produced by all objects with heat. |
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Definition
| The region of the electromagnetic spectrum that is next to violet but can't be seen. |
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Term
| Ultraviolet radiation (UV) |
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Definition
| The region of the electromagnetic spectrum that is next to violet but can't be seen. |
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Term
| Electromagnetic radiation |
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Definition
| Any emitted part of the EM spectrum. |
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Definition
| A space with no particles in it. |
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Definition
| The region of the spectrum used to take medical images of bones. |
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Definition
| The region of the spectrum that kills cells and can be very harmful. |
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Definition
| The spectrum of light - visible and not visible. |
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Definition
| A power in maths that has a negative value. |
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Definition
| An acid which makes up a code that gives us our genetics. |
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Definition
| An illness caused by mutations in skin cells. |
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Definition
| When the DNA of a cell is altered. |
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Definition
| A lamp that gives off light. |
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Definition
| Making an image based on the heat given off by something. |
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Definition
| A glass strand that can allow light to pass through it. |
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Definition
| Treating someone with radiation. |
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Definition
| Radiation that can cause particles to gain a charge by losing electrons or an electron. |
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Definition
| A particle with a charge (due to an unbalanced number of electrons). |
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Definition
| Something which gives off ionising radiation. |
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Definition
| Helium nuclei (2 protons and 2 neutrons). |
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Definition
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Definition
| Balls of gas in space that emit light due to the nuclear reactions within them. |
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Definition
| Huge clouds of gas in space. |
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Definition
| The galaxy in which we live. |
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Definition
| A collection of stars and planets in orbit of each other. |
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Definition
| A collection of millions of stars that are close together and possibly orbit a black hole. |
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Definition
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Definition
| In terms of light this means all of the groups of light. It can mean a rainbow. |
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Definition
| Something that measures a spectrum, looking for dark lines in it. |
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Definition
| The light which we can see. |
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Definition
| Something which goes to another planet. |
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Definition
| Something which we send into space looking for things. |
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Definition
| Something which moves around on another planet. |
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| Search for Extraterrestrial Intelligence (SETI) |
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Definition
| A project that searches for intelligent life in space. |
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Definition
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Definition
| The beginnings of a new star. |
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Definition
| The centres of things (including atoms). |
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Definition
| A reaction where hydrogen become helium and releases energy (like in stars). |
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Definition
| The normal life cycle a star follows. |
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Definition
| A main sequence star that is getting older and bigger. |
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Definition
| The remnants of a dead main sequence star. |
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Definition
| A larger star that is getting older and bigger. |
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Definition
| A huge explosion from a dying star. |
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Definition
| A dead star creating so much gravitational pull that even light is pulled in. |
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Definition
| A dead star that is very dense. |
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Definition
| When light looks more red because of a stretched wave length. |
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Definition
| The idea that the Universe quickly expanded from a point in space and no new matter is created. |
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Term
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Definition
| The idea that the Universe has always existed but gets bigger with new matter being made. |
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Term
| Cosmic microwave background (CMB) radiation |
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Definition
| Radiation found evenly spread throughout the Universe. |
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Term
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Definition
| Effectively means frequency. |
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Term
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Definition
| The effect heard when an ambulance comes towards you then moves away. |
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Definition
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Definition
| How many waves pass in a second. |
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Definition
| A material through which something passes. |
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Definition
| Low frequency sound (below 20Hz). |
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Term
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Definition
| High frequency sound (above 20,000Hz). |
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Term
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Definition
| A system used to see how deep water is (or look for objects in water). |
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Definition
| A scan using high frequency sound waves. |
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Definition
| A tremor resulting from movement in the Earth's crust. |
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Definition
| A wave which travels through the Earth. |
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Definition
| A device used to measure the size of waves travelling through the Earth. |
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Definition
| The point where a seismic wave began. |
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Definition
| The point at the surface directly above the focal point of an earthquake. |
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Term
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Definition
| Longitudinal (and faster) seismic waves. |
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Definition
| Transverse (and slower) seismic waves. |
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Definition
| The outer layer of the Earth made up of rock. |
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Definition
| The layer below the Earth's crust made of molten magma. |
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Definition
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Definition
| Waves that have changed speed and direction at the boundary between two materials. |
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Definition
| The large area of the Earth's crust that move slowly. |
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Definition
| The way in which heat "moves" in the mantle, rising and falling. |
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Definition
| Water waves caused by movement in the Earth's crust. |
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Term
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Definition
| The flow of charge/electrons, often in a wire. |
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Term
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Definition
| The flow of charge/electrons. |
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Term
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Definition
| The "pressure" in a circuit, sometimes called the potential difference. |
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Term
| Renewable energy resources |
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Definition
| Energy that comes from a source that is continually replenished (isn't running out). |
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Term
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Definition
| A cell that produces electrical current when sunlight is absorbed by it. |
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Definition
| Energy that comes from sunlight. |
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Definition
| Electricity produced by water turbines in dams of reservoirs. |
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Definition
| Turbines that are turned by the wind (like windmills). |
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Definition
| Energy from hot rocks beneath the Earth's surface. |
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Definition
| Energy from the rising and falling tide. |
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Definition
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Definition
| Energy resources from sources that cannot be replenished (can run out). |
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Definition
| Fuels from fossilised plants and animals (coal, oil and natural gas). |
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Definition
| Energy from nuclear materials like uranium. |
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Definition
| The change to the temperature and weather of the Earth. |
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Definition
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Definition
| Not used any more and shut down/disused. |
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Term
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Definition
| A field caused by a magnet with a north and south. |
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Term
| Electromagnetic induction |
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Definition
| The creation of electrical current by moving a magnet along/around a wire. |
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Term
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Definition
| Current created by a magnetic field being moved along a wire (like in a dynamo). |
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Definition
| A device which used movement (kinetic energy) to create electricity. |
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Term
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Definition
| Current which flows in one direction only. |
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Definition
| A device which produces electricity. |
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Definition
| Connection rings found on a dynamo. |
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Term
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Definition
| Connectors used to maintain a good contact with the dynamo as it spins. |
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Definition
| Current which flows "back and forth" or in different directions. |
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Definition
| A magnet created using an electrical current. |
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Definition
| The wires and transformers that supply electricity around the country. |
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Definition
| How much energy is transferred usefully compared to how much is wasted. |
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Definition
| A device which changes the voltage of AC current. |
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Term
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Definition
| A device which increases the voltage of AC current. |
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Term
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Definition
| A device which decreases the voltage of AC current. |
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Definition
| The coil of wire carrying electrical current entering a transformer. |
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Definition
| The coil of wire carrying electrical current leaving a transformer. |
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Definition
| The measurement of energy. |
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Definition
| The rate (speed) at which energy is transferred. |
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Definition
| The unit for power, also meaning joules per second. |
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Definition
| A thousand watts (1000W). |
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Definition
| A measurement of electricity use in a home meaning 1000W being transferred in an hour. |
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Term
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Definition
| The measurement of electricity use in a home. |
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Definition
| The time it takes for the savings of a new device to cover the cost of buying it. |
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Definition
| Pays for itself with the savings it makes. |
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Definition
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Definition
| The form of energy we see. |
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Definition
| Energy which is the flow of electrons. |
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Definition
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Definition
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Term
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Definition
| Energy potential in chemicals. |
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Term
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Definition
| Energy potential in radioactive materials. |
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Term
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Definition
| Energy potential in something elasticated. |
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Definition
| Energy potential as you move up through gravity or higher. |
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Term
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Definition
| The change of energy from one for to another. |
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Term
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Definition
| Connected processes that make up a bigger whole. |
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Term
| Law of conservation of energy |
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Definition
| The law that energy is never lost. |
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