LINEAR KINEMATIC Flashcards

1
Q

what is kinematic + exemple

A

the study of description of the spatial and temporal characteristics of motion without regard to causative forces.: position, displacement, distance, velocity, speed, and acceleration.

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2
Q

rectilinear motion and curvilinear motion is what type of motion

A

linear motion

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3
Q

what is angular motion

A

motion when all points on a body or object move in circles (or parts of circles) about the same fixed central line or axis.

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4
Q

what is general motion

A

combination of linear and angular motions

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5
Q

what are the 2 things important for motion to occur

A

space and time

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6
Q

which type of motion is also referred to as translation

A

linear motion

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7
Q

what is rectilinear translation

A

occurs when all points on a body or object move in a straight line so that the direction of motion does not change, the orientation of the object does not change, and all points on the object move the same distance.

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8
Q

what is curvilinear

A

translation occurs when all points on a body or object move so that the orientation of the object does not change and all points on the object move the same distance

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9
Q

what is the difference btw curvilinear and rectilinear

A

curvilinear the direction of motion of the object is constantly changing even though the orientation does not change

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10
Q

T/F: angular motion can only occurs within the body

A

false, can occurs within and outside the body

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11
Q

what is linear distance

A

total length of the path travelled

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12
Q

what is linear displacement

A

distance from initial position to final position, displacement is a straight line (vector quantity)

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13
Q

difference between speed and velocity

A

speed is a scalar and velocity is a vector

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14
Q

what is speed

A

rate of distance traveled

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15
Q

what is velocity

A

rate of motion in a specific direction (rate of displacement)
so velocity is always the same even if someone as a higher distance travelled

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16
Q

what is instantaneous speed

A

speed of an object at a specific instant of time

17
Q

if we are told what a runner’s average speed was for an interval of time, what can we assume

A

assume that the instantaneous speed was faster than the average speed during some part and slower Thant the average speed during other part of that interval

18
Q

what is the direction of the acceleration if an object is speeding up in the negative direction

A

negative

19
Q

which parameters do we need to work on if we want to win a 200-m sprint

A

max speed