STM 003
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37 Terms
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Physics
It is defined as the science that deals with matter and energy and their interactions.
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Matter
It is simply defined as anything that occupies space and has mass.
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Energy
It is defined as the capacity of doing work.
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Accuracy
It refers to the closeness of a measurement to the accepted value for a specific physical quantity.
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Precision
It is the agreement among several measurements that have been made in the same way or it is the closeness of measured values to each other.
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Random Error
This type of error occurs when there are variations in the environment or measurement technique.
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Systematic Error
This type of error is caused by faulty instruments or the incorrect handling of instruments or incorrect calibration of measuring instruments.
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Scalar
Quantities that can be associated with the magnitude only.
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Vector
Quantities that can be associated with both magnitude and direction.
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Geometrical Method
Vectors may be added graphically or analytically. The graphical method, which is also known as ______, requires no computation.
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Resultant
Addition of vectors is equivalent to composition of vectors, and the sum of vectors is called the ______ of vectors.
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Position Vector
Starting from the origin to the point where the particle is.
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Velocity Vector
Time derivative of the corresponding component of the position vector.
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Acceleration Vector
Derivative of the x-component of the velocity vector as a function of time.
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Mechanics
Forces acting on bodies.
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Kinematics
Motion of a body.
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Dynamics
Relates force and motion.
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Displacement
It refers to the change of position of an object. It is described by its magnitude and direction; hence, it is a vector quantity.
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Displacement
Difference between final position to initial position.
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Meter
The SI unit for displacement is ______.
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Distance
The absolute value of displacement is called ______.
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Average Velocity
It is the displacement divided by the time of travel.
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Speed
The absolute value of velocity is called ______.
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Instantaneous Velocity
It is the velocity at a specific instant of time or specific point along the path.
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Acceleration
It is the rate at which velocity changes.
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Instantaneous Acceleration
It is the acceleration at a specific instant of time.
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Average Velocity
Rate at which an object changes in position from one place to another.
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Instantaneous Velocity
Rate at which an object changes its position from one place to another.
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Translation
It is the term used in physics for motion in a straight line.
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Position
The location of an object with respect to a frame of reference.
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Projectile
It is a body which is given an initial velocity and then allowed to move under the influence of gravity only.
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Trajectory
Once a projectile is released, it will trace a curvilinear (non-linear) path called ______.
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Projectile Motion
It is a combination of horizontal motion with constant velocity and vertical motion with constant acceleration.
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Free Fall
Motion under sole influence of a gravitational acceleration.
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Circular Motion
An object that moves in a circle at constant speed v is said to be experiencing a uniform circular motion.
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Angular Displacement
The angle in radians (degrees, revolutions) through which a point or line has been rotated in a specified sense about a specified axis.
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Angular Velocity
It can be considered to be a vector quantity, with direction along the axis of rotation in the right-hand rule sense.