Core Physics
- Created by: Nayeema-A
- Created on: 02-02-14 20:20
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- Core Physics
- Visible light and the Solar System
- Geocentric Model
- Created by Greek astronomer Ptolemy
- The idea that the Earth was at the centre of the universe, and every other planet and the sun orbited it
- Heliocentric model
- Created by Copernicus
- Copernicus's model didn't include Uranus, Neptune and drawf planet Pluto
- Put the Sun at the centre of the Universe and everything else orbiting it
- Pioneered by Italian Astronomer Galileo Galilei
- Discovered Jupiter had 4 moons
- Put him into conflict with the Catholic Church
- Pioneered by Italian Astronomer Galileo Galilei
- Created by Copernicus
- Telescopes
- Optical Telescopes
- Observe visible light from Space
- Cannot be used in poor or cloudy weather
- Radio Telescopes
- Detect radiowaves coming from space
- expensive and very large
- Can be used in bad weather and can be used in both day and night
- Lense
- A transparent block that causes light to refract
- Refracting telescopes
- Some of light reflects off the lense so the image is very faint
- Large lenses are needed to improve magnification, can be difficult to do perfectly
- Optical Telescopes
- Geocentric Model
- Electromagnetic spectrum
- Visible
- White light can form a spectrum
- They are transverse waves
- X-ray
- Damage cells causing mutations and cell death
- X-ray
- Infrared
- William Herschel discovered it
- They are transverse waves
- X-ray
- Damage cells causing mutations and cell death
- X-ray
- Causes skin burns
- Ultra-violet
- Johann Ritter discovered it
- Using silver chlorides
- Found naturally in sunlight
- Johann Ritter discovered it
- Micro
- Causes internal heating of body tissue
- Radio
- Lowest frequency, shortest wavelength
- Gamma
- Highest frequency, longest wavelength
- Visible
- Visible light and the Solar System
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