Kinematics Flashcards
What is the study of motion
Mechanics
What is the study of how things move?
Kinematics
Which Ancient Greek believed that things move as they do because it is their nature
Aristotle
Studied falling objects
Galileo
Galileo came to what conclusion
his conclusion was that objects will fall at the same rate in a vacuum (space)
developed the 1st truly mathematical model of motion in the late 1600s
Issac Newton
Issac Newtons 3 laws of motion and law of universal gravitation form the basis for what
classical mechanics
what is classical mechanics
study of how and why things move
why do we use the newtonian model
because makes predictions relatively accurate for most things without being overly complex
a coordinate system used to describe the motion of an object
Frames of Referance
a portion of a larger motion that we are interested in studying rather than all the possible motion
A System
Distance is…… (list all possible facts)
a scalar quantity indicating how far and object moves during a time interval
represented with lowercase d
a scalar quantity indicating how far and object moves during a time interval
Distance
represented with lowercase d
distance
Displacement is…… (list all possible facts)
a vector quantity that describes a change in position
represented with /\X
represented with /\X
Displacement
a vector quantity that describes a change in position
Displacement
includes distance and direction
displacement
Distance is always….
positive
displacement can be negative
(True/False
True
a measurable quantity that consists of magnitude
Scalar
is scalar or vector measured with size only
Scalar
Scalar quantities (4)
Distance
Temperature
Pressure
Speed
a measurable quantity with both magnitude and direction
Vector
Vector quantities (4)
Displacement
Velocity
Acceleration
Force
a scalar quantity indicating the rate at which an object moves
speed
A vector quantity indicating the rate at which an object’s position changes
Velocity
a property of a moving system that is equal to its velocity times its mass
also a vector quantity
Momentum (p)
the rate in change in velocity
vector quantity
change in speed, direction, or both
can be positive or negative
unit m/s squared
Acceleration
Facts about Acceleration
the rate in change in velocity
vector quantity
change in speed, direction, or both
can be positive or negative
unit m/s squared
the motion of an object that falls due to gravity alone with no other forces acting upon it
Free fall
movement along a circular path
Circular motion
circular motion can cause what
acceleration
acceleration that causes an object to move toward the center of a circular path
Centripetal
Negative acceleration
slowing down
the 2 dimensional motion of any flying object whose curved path is determined by the influence of an external force only, such as gravity
projectile motion
the curved path of the projectile
trajectory
