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Physical sciences > CH.12 Vocab > Flashcards

CH.12 Vocab Flashcards

1
Q

Force

A

is the push or pull that acts on an object

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2
Q

Newtons

A

force is measured in newtons

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3
Q

Net force

A

is the overall force acting on an object after all the forces are combined

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4
Q

Friction

A

a force that oppose the motion of objects that touch as they move past each other

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5
Q

Static friction

A

is the friction force that acts on objects that are not moving

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6
Q

Sliding friction

A

is a force that opposes the direction of motion of an object as it slides over a surface

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7
Q

rolling friction

A

the friction force that acts on rolling objects

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8
Q

Fluid friction

A

opposes the motion of an object through fluid

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9
Q

Air resistance

A

fluid friction acting on an object moving through the air

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10
Q

Gravity

A

is force that acts between any two masses

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11
Q

Terminal velocity

A

is the constant velocity of a falling object when the force of air resistance equals the force of gravity

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12
Q

projectile motion

A

the motion of a falling object after it is given an initial forward velocity

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13
Q

Inertia

A

is a tendency of an object to resist a change in its motion

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14
Q

Mass

A

is a measure of the inertia of an object and depends in the amount of matter the object contains

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15
Q

Weight

A

is the force of gravity acting on a object

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16
Q

Momentum

A

is the product of an object’s mass and it velocity

17
Q

Law of conservation of momentum

A

if no net force acts on a system, then the total momentum of the system does not change

18
Q

Electromagnetic

A

force is associated to charge particles

19
Q

Strong nuclear force

A

is a powerful force of attraction that acts only on

The neutrons and protons in the nucleus

20
Q

Weak nuclear force

A

is an attractive force that acts only over short range

21
Q

Gravitational force

A

is an attractive force that acts between any two masses

22
Q

Centripetal force

A

is a center- directed force that continuously changes the direction of an object to make it move around the center

Physical sciences (8 decks)

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