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Topic 1 vocab

Physics Vocabulary

TermDefinition
Kinematics The area of physics that deals with the mathematical methods of describing motion without regard to the forces which produce it.
Kilogram (kg) The SI unit of mass equal to 1,000 grams.
Circumference The perimeter or "distance" around a circle. Mathematically determined as the product of π and the diameter, or the product of π and twice the radius: C = πd = 2πr.
Average Speed The average of the initial and final speeds of an object: image Speed is the magnitude of the velocity vector.
Kinetic Energy The energy that an object possesses because of its motion. The kinetic energy of an object is directly proportional to its mass and also to the square of its velocity: .
Displacement A vector quantity that represents the length and direction of a straight line path from one point to another. The magnitude of displacement is distance. Next
Velocity A vector quantity which represents the time-rate of change in the displacement of an object: .
Slope Of A Graph The ratio of the change in the vertical coordinate to the change in the horizontal coordinate.
Speed A scalar quantity that represents the magnitude of velocity. It is the time-rate of change in distance: .
Magnitude The size of a vector quantity, ignoring its direction.
Constant Velocity Uniform unchanging velocity.
Second (s) The SI unit of time. It is a fundamental unit.
Final Speed The speed (magnitude of velocity) that an object ends with
Order Of Magnitude A rough measure of size relationships, usually expressed as powers of 10.
Distance A scalar quantity that represents the length of a path from one point to another; the magnitude of the displacement vector.
Acceleration A vector quantity that represents the time-rate of change in the velocity of an object: .
Mass The resistance that an object offers to a force acting upon it; the ratio of the net force acting on the object to its acceleration: m = F/a.
Meter (m) The SI unit of length. It is a fundamental unit.
Derived Unit A unit of measurement that can be expressed in terms of the fundamental international standard (SI) units.
Diameter A chord that passes through the center of a circle; the length of a straight line segment that begins on a circle, passes through the center, and ends on the circle.
Average Velocity The average velocity of uniformly accelerated object may be found by averaging its initial and final velocities.
Created by: jwhitm5