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AP Physics Chapter 4

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Section 1

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internal reference frame

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Physics

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Mar 1, 2020

Cards (31)

Section 1

(31 cards)

internal reference frame

Front

an internal reference is one in which Newton's law of inertia is valid.

Back

Newton's forces

Front

normal force, frictional forces, tension forces, gravitational forces

Back

Friction (frictional force)

Front

the resistance of an object upon another due to microscopic contact points

Back

force

Front

push or a pull

Back

Newton's First law

Front

An object continues in a state of rest or in a state of motion at a constant velocity unless compelled to change that state by a net force.

Back

Apparent Weight

Front

When a scale shows a relative weight because more than one force is acting upon it usually from multiple directions.

Back

Weight

Front

the gravitational force that earth exerts on the object, always acts downward, toward the center of the earth. On or above another astronomical body, the weight is the gravitational force exerted on the object by that body.

Back

Newton's second law of motion

Front

when a net external force acts on an object of mass, the acceleration that results is directly proportional to the net force and has a magnitude that is inversely proportional to the mass. The direction of acceleration is the same direction as the net force.

Back

Inertia

Front

the natural tendency of an object to remain at rest or in motion at a constant velocity

Back

Normal Force

Front

one component of the force that a surface exerts on an object with which it is in contact-namely, the component that is perpendicular to the surface.

Back

contact forces

Front

physical contact between two objects

Back

The relation of mass and weight

Front

both mass and weight are scalar quantities and mass directly effects weight.

Back

Tension force

Front

The transmutation of energy from the start to the end due to tension

Back

noncontact forces

Front

interaction between to objects without contact or action-at-a-distance forces

Back

equilibrium

Front

when an objet has zero acceleration, when it moves at a constant velocity.

Back

Universal Gravitational constant (G)

Front

G= 6.674 X 10^-11 N*m^2/kg^2

Back

acceleration due to gravity (g) (formula)

Front

G*(M/r^2)

Back

Fundamental forces

Front

the only truly unique forces, Gravitational force Strong nuclear force, Electroweak force

Back

dyne (dyn)

Front

CGS: (g) centimeter/second^2(cm/s^2)

Back

newton (N)

Front

SI: (kg) meters/seconds^2(m/s^2)

Back

SI standard unit of Inertia (and mass)

Front

Kg(Kilograms)

Back

mass

Front

the quantitative measurement of inertia

Back

action-at-a-distance forces

Front

noncontact forces or interaction between two objects without contact

Back

Weight (formula)

Front

W = m*g

Back

pound (lbs)

Front

BE: (sl) foot/second^2(ft/s^2)

Back

Newton's third law of motion

Front

Whenever one object exerts a force on a second object, the second object exerts an oppositely directed force of an equal magnitude on the first object.

Back

Coefficient of static friction

Front

μ

Back

Mathematical point

Front

a point so minute that it has no real value except its position in space.

Back

Static Frictional force

Front

Back

Nonfundamental forces

Front

every type of common force is included ex: normal force

Back

Newtons Law of Universal Gravitation

Front

Every particle in the universe exerts an attractive force on every other particle. A particle is a piece of matter, small enough in size to be regarded as a mathematical point. For two particles that have masses they are separated by a distance the force that each exerts on the other is directed along the line joining the particles.

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