Vocab 2 Flashcards

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0
Q

Tension

A

The pull a nonrigid connector exerts on an object to which the connector is attached; the pull is directed along the line along the line of the connector and away from its point of attachment

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1
Q

Force

A

The cause of an acceleration or the change in an objects velocity; a push or a pull on an object

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2
Q

Weight

A

The magnitude of the force of gravity acting on an object

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3
Q

Normal force

A

A force exerted by one object on another in a direction perpendicular to the surface of contact; the force (perpendicular to the surface) that a surface exerts on an object that pushes on the surface

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4
Q

Contact force

A

Force that arises from the physical contact of two objects

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5
Q

Force at a distance

A

Force that can exist between objects, even in the absence of physical contact between the objects; also called a field force

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6
Q

Mass

A

Measure of the amount of matter in an object; the measure of the inertia of an object

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7
Q

System

A

A set of items or interactions considered a distinct physical entity for the purpose of study; an object or objects whose motion we choose to examine

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8
Q

Environment

A

Everything outside a system; all objects not in the system

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9
Q

Newtons 1st law

A

Ab object at rest will remain at rest & an object in motion will continue to move in a straight line and at constant speed unless something acts upon the object

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10
Q

Newtons 2nd law

A

The acceleration of an object is directly proportional to the NET F & inversely proportional to the mass

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11
Q

Newtons 3rd law

A

Whenever object A applies force to object B then object B applies force on object A; forces are =

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12
Q

Friction

A

The force a surface exerts on an object that moves or tries to move across a surface

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13
Q

FBD

A

Drawing that shows a single object with all the forces that act on the object

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14
Q

Inertia

A

Resistance of an object to a change in its momentum

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15
Q

Magnitude

A

The size of a vector without direction

16
Q

Component of a vector

A

The effect of a vector along the X-axis or along the Y-axis