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### 26 Cards in this Set

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 Hypothesis A statement that says something about how you expect the world to work - must be testable -must be able to be proven wron Inquiry Cycle Question-Prediction-Experiments-Model-Apply A scientist may jump from any point of the inquiry Cycle Model Set of rules, so that if we follow them, we will get the tight answer. Allows us to answer questions the same way as the Universe, but we do not know how the Universe answers them Speed How fast : distance ------- time Relative Motion Reference Frame (point of view) -ground -egocentric -heliocentric Average Speed distance ------- time or initial + final --------- 2 Average velocity displacement ------ time Constant Velocity same speed, same direction (in a straight line) Change in Velocity turning, slowing down, speeding up Acceleration Any change in velocity Rapid Cahnge: big, fast acc Gradual Change: Small, slow acc Change in Velocity ------------- = a = ^v/t Time = final - intial ---------- Time Change in Velocity Acc * time Distance average speed * time Distance (Position Graph) speed=slope straight line=constant velocity curved line=acc corners= impossible to recreate because one can;t make a change in speed in no time Velocity Graph Graph: Slope (Position and Velocity Graphs) Slope- amount of change in what we're graphing Postion graph- slope will be change in position vs. time (speed Velocity Graph- Slope will be change in velocity vs. time (acc) Graph Patterns Flats----0 Curves----diagonal diagonal-----flats Positive Acc speeding up (+) moving away (+) slowing down (-) moving toward (-) Negative Acc Moving towards (-) speeding up (+) Moving away (+) slowing down (-) Instantaneous Speed Speed at that exact moment Final Speed initial+ change in speed Change in Speed acc * time final- initial -------- time Free Fall Motion under the influence of gravity - no air resistance ect. allowed - not necessarily falling down - all objects fall at the same rate (Galileo) Acc due to Gravity g= 9.8 m/s2 = 10 m/s2 d=1/2gt2 -Falling from rest -Not things that are thrown ex: - falling 2 times as long-- 4 Times as far Science vs. Technology Science- way of knowing Technology- way of doing Science vs. Religion Science- Cosmic Order Religion- Cosmic purpose