physical science - module 1

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motion

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13 Terms

1

motion

changing position relative to a reference point

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2

displacement

distance and direction of a change in position relative from the starting point

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3

speed

the rate at which an objects position changes

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4

what are the axis's on a distance time graph

time is the x axis and distance is the y axis

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5

what is the slope on a distance time graph

the speed

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6

velocity

the distance and the speed relative to a reference point

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7

how is an objects position described

relative to a reference point

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8

what is momentum

defined for a particular frame of reference and the product of mass and velocity

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9

acceleration

the rate of change of velocity

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10

speed increases when

the acceleration and velocity are in the same direction

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11

speed decreases when

the acceleration and velocity are in opposite directions

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12

if an object is moving in a straight line the change in velocity is

the final speed minus the initial speed

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13

acceleration toward the center of a curved path

centripetal acceleration

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