Core science 0.0 / 5 ? SciencePhysicsGCSEEdexcel Created by: katyymattockssCreated on: 22-06-16 20:50 What order are the planets in? Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune, (Pluto) 1 of 8 What is a geocentric model? The idea that the earth is in the center of everything. 2 of 8 What is a heliocentric model? The idea that the sun is in the middle with planets following after. 3 of 8 What is refraction? When light changes direction because it moves into an interface (a different material) 4 of 8 What is the "normal" line? A line at a right angle to the interface. 5 of 8 What is the angle of incidence? The angle between the incident ray and the normal line. 6 of 8 What is the angle of refraction? The angle between the refracted ray and the normal line. 7 of 8 What is a converging lens? A glass block that is curved on both sides to make it thicker in the middle. 8 of 8
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