Science Tri 2 Final Flashcards

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1
Q

reference point

A

the starting point you use to describe the location of an object

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2
Q

position

A

an object’s distance and direction from a reference point

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3
Q

motion

A

the process of changing position

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4
Q

velocity

A

the speed and direction of an moving object

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5
Q

acceleration

A

measure of the change in velocity in a certain amount of time

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6
Q

force

A

a push or a pull

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7
Q

Newton

A

SI unit of force

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8
Q

friction

A

a force that resists the sliding motion of two objects that are touching

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9
Q

net force

A

combination of all forces acting on an object

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10
Q

force pair

A

the forces two objects apply to each other, always occur in pairs

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11
Q

gravity

A

a forces of attraction between all objects that is due to mass

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12
Q

the formula for calculating speed

A

speed=distance/time

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13
Q

Newton’s First Law

A

an object in rest will stay at rest and an object in motion will stay in motion unless acted on by another force

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14
Q

Newton’s Second Law

A

force=mass x acceleration

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15
Q

Newton’s Third Law

A

for every action there is an opposite reactio

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