TERMINOLOGIES Flashcards

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1
Q

acceleration of an object as a result of gravity

A

acceleration due to gravity

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2
Q

the rate of change in velocity; the change in velocity over time

A

acceleration

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3
Q

the change in velocity divided by the time over which it changes

A

average acceleration

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4
Q

distance traveled divided by time during which motion occurs

A

average speed

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5
Q

displacement divided by time over which displacement occurs

A

average velocity

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6
Q

acceleration in the direction opposite to velocity; acceleration that results in a
decrease in velocity

A

deceleration

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7
Q

the variable that is being measured; usually plotted along the y -axis

A

dependent variable

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8
Q

the change in position of an object

A

displacement

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9
Q

the total length of the path traveled between two positions

A

distance traveled

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10
Q

the magnitude of displacement between two positions

A

distance

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11
Q

the difference between the ending time and beginning time

A

elapsed time

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12
Q

the state of movement that results from gravitational force only

A

free-fall

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13
Q

the state of movement that results from gravitational force only

A

independent variable

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14
Q

acceleration at a specific point in time

A

instantaneous acceleration

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15
Q

magnitude of the instantaneous velocity

A

instantaneous speed

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16
Q

velocity at a specific instant, or the average velocity over an infinitesimal time interval

A

instantaneous velocity

17
Q

the study of motion without considering its causes

A

kinematics

18
Q

the location of an object at a particular time

A

position

19
Q

a quantity that is described by magnitude, but not direction

A

scalar

20
Q

the difference in y -value (the rise) divided by the difference in x -value (the run) of two
points on a straight line

A

slope

21
Q

change, or the interval over which change occurs

A

time

22
Q

a quantity that is described by both magnitude and direction

A

vector

23
Q

the y- value when x = 0, or when the graph crosses the y -axis

A

y-intercept

24
Q
  • refers to the velocity of an object as observed from a different reference frame
A

Relative Velocities

25
Q

amount of work required to accelerate a body of from rest to velocity mass -consequence of being in motion

A

Kinetic Energy

26
Q

amount of work required to accelerate a body of from rest to velocity mass -consequence of being in motion

A

Kinetic Energy

27
Q

energy stored in the system in come fashion, once it released, It can do work

A

Potential Energy

28
Q

energy of an object by virtue of it’s height of elevation above a reference point

A

Gravitational Potential Energy

29
Q

energy stored in an avises due to the objects ability to return to its orginal shape

A

Elastic Potential Energy

30
Q

-the force is independent of path -the force over a closed path is zero

A

Conservative Forces

31
Q

change of energy with time

A

Power

32
Q

balance point of a body

A

Center of Mass

33
Q

-describes the motion of an object
-product of an object’s mass and velocity

A

Momentum

34
Q

-in a closed system the total momentum is constant.
-momentum is a conserved vector quantity

A

Conservation of Momentum

35
Q

area under the force vs. time force

A

Impulse

36
Q

-two bodies briefly come into direct contact with each other.

•Perfectly elastic collision none of the Ik is converted into heat or deformation

•Perfectly inelastic all 1k is converted into heat and deformation

A
37
Q

collision lie between there two extremes

A

Inelastic Collision

38
Q

measures how elastic a collision

A

Coefficient of Restitution