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PS Semester Test JS

PS Semester 1 Test Review

QuestionAnswer
factor that changes as a result of changes in the other variables Dependent Variable
factor that, as it changes, affects the measure of another variable. Independent Variable
in an experiment, a variable that does not change when other variables change. Constant
standard used for comparison of test reasults Control
Theory
statement about what happens in nature that seems to be true all the time; does not explain why or or how something happens Scientific Law
rate of change of velocity; can be calculated by dividing the change in the velocity by the time it takes the change to occur. Acceleration
a push or pull exerted on an object Force
resistance of an object to a change in its motion Inertia
the speed and direction of a moving object Velocity
distance an object travels per unit of time. Speed
Newton’s 1st Law of Motion
states that he acceleration of an object is in the same direction as the net force of the object, and that the acceleration equals the net force divided by the mass Newton’s 2nd Law of Motion
states that when one objects exerts force on a second object, the second object, exerts force on the first object that is equal in strength and in the opposite direction Newton’s 3rd Law of Motion
force that opposes the sliding motion between two touching surface Friction
energy a moving has because of its motion' depends on the mass and speed of the object. Kinetic Energy
stored energy an object has do to its position Potential Energy
states that energy can never be created or destroyed Law of Conservation of Energy
sum of the potential energy and kinetic energy in a system Mechanical Energy
machine that does work with only one movement-lever, pulley, wheel and axle, inclined plane, screw, and wedge Simple Machine
Compound Machine
Efficiency
Mechanical Advantage
Conduction
Convection
Radiation
Heat
Insulator
Conductor
Temperature
Length
Mass
Volume
Density
Work
Energy
Force
Speed
Acceleration
Time
Temperature
Created by: JSmurf2
Popular Physical Science sets

 

 



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