General Physics 1 - 2nd QT

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Physics

Kinematics & Dynamics

12th

Last updated 4:48 PM on 1/22/23
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31 Terms

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Kinematics & Dynamics
2 Studies of Motion
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Kinematics
This study of motion describes motion in terms of displacement, velocity, acceleration, and many others
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Dynamics
This is the study of force in relation to motion
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Gravity
This is a prime example of dynamics in the study of motion
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Position
location of the object with respect to the reference point/origin
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Displacement
a vector quantity that represents the difference between the initial and final position of an object
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Delta
this means ‘change in’
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Distance
a scalar quantity that represents the sum of all distances
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Speed
a scalar quantity that represents the total distance over time
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Velocity
a vector quantity that represents the total displacement over time
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Acceleration
the rate of change in the velocity
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Acceleration
this term means an increase in velocity
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Acceleration
a change in velocity over a time interval
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Deceleration
this is referred to as the decreasing of the rate of velocity
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Deceleration
When a moving object slows down, the direction of acceleration points toward the opposite direction of its velocity and therefore experiences __.
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Velocity-time graph
represents the motion of objects whose velocity is constantly changing
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\-9.8 m/s^2
Value of the constant acceleration due to the gravitational pull
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Free fall
consists of different objects that are free falling
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velocity vs time graphs
can be used to determine displacement
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straight
Position vs time graphs discussed consist of __ lines
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downward slope
a slope where objects are accelerated when moving down a smooth inclined plane
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upward slope
a slope where objects are decelerates when moving up a smooth inclined plane
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horizontal plane
objects moving on a frictionless __ neither accelerates nor decelerates
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acceleration due to gravity
The acceleration of free-falling objects is therefore called the __
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Gravity
attracts all objects with mass inward towards other objects with mass.
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speed & exposed surface area
The amount of air resistance force an object experiences depends on the object’s __? & ?.__
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free-falling
A __ object is an object that is falling under the sole influence of gravity
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FALSE
TRUE OR FALSE: Free-falling objects encounter air resistance.

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Rectilinear Motion
defined as motion along a straight line, with motion being defined as the change in position over a given time
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Time
the progression of events occurring between instances
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Velocity
the measured speed measured between two specified points