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sci#10#hy

TermDefinition
Universe The huge space which contains all of the matter and energy in existence
Big Bang Theory The theory that the universe stated in a big explosion from a single point
Steady State Theory The theory that the universe has always existed and matter is being created all the time - 1950s and 60s
Cosmology The scientific study of the theories about the history and futures of the universe
Organisms Living things
Charles Darwin Created the theory of evolution and explained it through the mechanism of natural selection
Evolution The slow change in population of living things over many generations
Comparative Antomy The study of similarities and differences in body structures
Comparative Embryology Study of embryos
Comparative DNA Shows relations between different species
Fossils The remains or impressions of living things, mostly found in rock
Geographical Isolation The natural arrangements of plants and animals in particular regions
Natural Selection When only the organism's best adapted to their environment will survive and transmit their genes to their offspring
Hominid Early human-like fossils that walked upright on 2 legs and were more like humans than apes
Homo Sapiens The scientific term for humans
Lamarck's Theory Use it or lose it
Motion Movement
Distance How far it is between 2 points
Time How long it takes between 2 points
Average Speed The total distance travelled divided by the time taken
Speed How quickly an object is moving
Velocity Speed in a given direction
Instantaneous Speed The speed of something the instant you look at it
Mass The amount of matter in something
Weight The force gravity pulling on a mass
Force A push, pull or twist applied to an object
Acceleration The rate at which an object changes its speed
Net Force The direction sum of all forces acting on an object
Friction The rubbing force that slows moving objects
Ticker Timer A device that produces a series of dots on paper
Inertia The tendency of mass and velocity
Equation for speed S=d/t
Equation for force f=ma
Newtons 1st Law Law of Inertia
Newtons 2nd Law F=ma
Newtons 3rd Law Action/Reaction
Created by: Chris497
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