Flashcards
Science Keywords Revision Flashcards
Cards in this deck (53)
- 1AbsorbWhen a ray of light is taken in when it strikes a surface
- 2AmplitudeThe height of a wave
- 3AxisThe imaginary line through the North and South Poles, about which the Earth turns
- 4Boiling PointThe temperature at which a substance turns from a liquid to a gas or from a gas to a liquid
- 5Celsius ScaleA scale of temperature
- 6Convection CurrentWhen heat energy is carried by a moving liquid or gas
- 7CraterDent on an object in space caused by rocks in space.
- 8DensityDensity= mass divided by volume
- 9FrequencyThe number of waves or vibrations per second
- 10Heat Energy (Heat)Energy spreading out from an object which is hotter than its surroundings
- 11HemisphereHalf of the Earth's sphere
- 12HertzThe unit of frequency; 1Hz = 1 vibration per second
- 13MetalA chemical that is shiny, malleable and a conductor; they often have high melting and boiling points and are sonorous
- 14NormalThe line at right angles to a surface at the point where a ray of light strikes the surface
- 15OscillateTo move back and forth
- 16OscilloscopeAn electronic instrument used to show sound waves on a screen
- 17PenumbraA region of partial shadow in an eclipse
- 18PhasesA stage in the changing appearance of the Moon, as seen from Earth
- 19PitchHow high or low a note is
- 20PlanetA large, solid object in orbit around the Sun or another star
- 21PressureA variable measured in Pascal (Pa)
- 22PrismA glass block with a regular face
- 23RadiationEnergy spreading out from its source
- 24ReflectWhen a ray of light bounces off a surface
- 25ReflectedDescribes a ray of light which has bounced off a surface
- 26RefractionThe bending of light when it travels from one medium to another (from a solid to a gas or vice versa)
- 27Rock PlanetA small planet made of rocky material, e.g. the four planets closest to the Sun
- 28ScatterWhen a ray of light reflects in many directions
- 29SeasonA division of the year (Spring, Summer, Autumn, Winter)
- 30Signal GeneratorAn electronic device used with a loudspeaker to produce sounds of different frequencies
- 31Solar EclipseWhen the Moon blocks the Sun's rays so that part of the Earth is in darkness
- 32Lunar EclipseWhen the Earth blocks the Sun's rays so that the Moon is in darkness
- 33ImageA picture of something, formed by light
- 34IncidentDescribes a ray of light falling on a surface
- 35Infra-red RadiationInvisible rays of heat energy spreading out from an object that is hotter than its surroundings
- 36LensA piece of glass shaped so that it refracts rays of light so that they come together
- 37Sound InsulationMaterial used to absorb sound
- 38Sound WaveHow we picture sound travelling through a material
- 39Sound-level MeterA meter used to measure the loudness of sound
- 40SpectrumAll the colours of light, spread out in order (red, orange, yellow, green, blue, indigo, violet)
- 41Speed of LightThe speed at which light travels in empty space; about 300,000km/s
- 42StarA glowing mass of hot gas; e.g. the Sun
- 43SupernovaAn explosion of a massive star towards the end of its life
- 44TemperatureA measure of how hot something is
- 45Thermal ConductorA material which lets heat pass through it easily
- 46Thermal InsulatorA material which lets heat pass through it but only very slowly
- 47ThermometerAn instrument for measuring temeperature
- 48TransmitWhen a ray of light passes through a material
- 49UmbraA region of full shadow in an eclipse
- 50UpthrustThe upward force on an object in liquid or gas
- 51VibrateTo move back and forth
- 52DecibelA unit used to measure the loudness of sound
- 53EnergyA variable, measured in
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- Flashcards on Science Keywords Revision Flashcards, created by Mikey Lloyd on 08/06/2017.
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- Mikey Lloyd
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