A type of friction that occurs when there is no relative motion between the object and the surface (no sliding).

Back

Vector

Front

A quantity that involves both magnitude and direction.

Back

Uniform Circular Motion

Front

When an objects speed around its path is constant.

Back

Torque

Front

The measure of a force's effectiveness at making an object spin or rotate.

Back

Normal Force

Front

The component of the contact force that is perpendicular to the surface. (When an object is in contact with a surface, the surface exerts a contact force on the object.)

Back

Rotational Equilibrium

Front

If the sum of the torques acting on an object is zero.

Back

Elastic Collision

Front

A type of collision in which the objects bounce perfectly off each other in opposite directions. Kinetic Energy is conserved. Momentum is conserved.

Back

Weight

Front

The gravitational force exerted on an object by the Earth (or by whatever planet it happens to be on).

Back

Simple Harmonic Motion

Front

Any vibrating system for which the restoring force is directly proportional to the negative of the displacement is said to exhibit _________________ _______________ ______________.

Back

Law of Conservation of Total Energy

Front

K(initial)+U(Initial) = K(final)+U(final)

Back

Newton's First Law

Front

An object will continue in its state of motion unless compelled to change by a force impressed upon it. Also called Law of Inertia

Back

Amplitude

Front

The maximum displacement from equilibrium.

Back

Period (T)

Front

The amount of time it takes to complete a cycle.

Back

Hooke's Law

Front

F = -kx

Back

Mechanical Wave

Front

A disturbance transmitted by a medium from one point to another, without the medium its self being transported.

Back

Inelastic Collision

Front

A type of collision in which the objects travel in the same direction after the collision. Kinetic Energy is lost. Momentum is conserved.

Back

Scalar

Front

A quantity that does not involve direction.

Back

Two-Dimensional Vectors

Front

Vectors that lie flat in a plane and can be written as the sum of a horizontal vector and a vertical vector.

Back

Kinetic Friction

Front

A type of friction that occurs when there is relative motion (when the surface is sliding).

Back

Uniform Circular Motion

Front

The objects speed around its path (constant).

Back

Unit Vectors

Front

Special vectors that have a magnitude of 1. These include horizontal basis vector, i, and vertical basis vector, j.

Back

Displacement

Front

A net distance traveled including direction; An objects change in position.

Back

Potential Energy

Front

The energy of an object or system has by virtue of its position of configuration.

Back

Newton's Law of Gravitation

Front

Any two objects in the universe that exert and attractive force on each other - called the gravitiational force - whoes strength is proportional to the product of the object's masses and

Back

Law of Conservation of Energy

Front

Energy can not just appear out of nowhere nor can it disappear in a closed system; it must always take on another form.

Back

Friction Force

Front

The component of the contact force that is parallel to the surface. (When an object is in contact with a surface, the surface exerts a contact force on the object).

Back

Power

Front

The rate at which work gets done, or energy gets transferred.

Back

Impulse

Front

The product of force and the time during which it acts.

Back

Kinematics

Front

The mathematical tools for describing motion in terms of displacement, velocity, and acceleration.

Back

Newton's Second Law

Front

Predicts what will happen when an unbalanced force does act on an object: the object's velocity will change / the object will accelerate.

Back

Momentum

Front

A vector quantity given by p = mv

Back

Static Equilibrium

Front

State of equilibrium when an object is at rest.

Back

Inertia

Front

An object's natural resistance to changes in their state of motion.

Back

Equilibrium Position

Front

When a spring is neither stretched nor compressed it is said to be in it ___________ ____________.

Back

Work

Front

The application of force over a distance and the resulting change in energy of the system that the force is acted on.

Back

Frequency

Front

The number of cycles that can be completed per unit time.

Back

Total Mechanical Energy

Front

The sum of an object's kinetic and potential energies.

Back

Law of Conservation of Momentum

Front

The momentum before equals the momentum after. total p (initial) = total p (final).

Back

Translational Equilibrium

Front

Occurs when the sum of the forces acting on an object are zero.

Back

Newton's Third Law

Front

To ever action, there is an equal but opposite reaction.

Back

Total Mechanical Energy

Front

The sum of an objects kinetic and potential energies.

Back

Impulse-Momentum Theorem

Front

Another way of writing Newton's Second Law. (Written J = change in momentum)

Back

Centripetal Acceleration

Front

When the acceleration vector points toward the center of the circle. The thing that turns the velocity vector to keep the object traveling in a circle.

Back

Perfectly Inelastic Collision

Front

The objects stick together and travel in the same direction. Greatest kinetic energy is lost. Momentum is conserved.

Back

Centripetal Force

Front

The force that produces centripetal acceleration. Pulls on object toward the center.

Back

Simple Pendulum

Front

Consists of a weight of mass attached to a string or a mass-less rod that swings, without friction, about the vertical equilibrium position.

Back

Coefficient of Friciton

Front

Represents the nature of surfaces.

Back

Universal Gravitational Constant

Front

9.81, signified by the capital letter G.

Back

Position

Front

An objects location in a certain space.

Back

Rotational Inertia

Front

The tendency of an object in motion to rotate until its acted upon by an outside force.

Back

Section 2

(31 cards)

Electric Field

Front

The presence of charge creates an ___________ ___________ in the space that surrounds it.

Back

Beat

Front

When two waves interfere constructively, producing an increase in sound level.

Back

Beat Frequency

Front

Equal to the difference between the frequencies of the two combining sounds.

Back

Kirchhoff's First Law (The Junction Rule) (The Node Rule)

Front

Says that the total current that enters a junction must equal the total current that leaves the junction.

Back

Superposition (Of Waves)

Front

When two or more waves meet, the displacement at any point of the medium is equal to the algebraic sum of the displacements due to the individual waves.

Back

Coulomb's Law

Front

Back

Insulators

Front

A material whose internal electric charges do not flow freely.

Back

Net Force

Front

The single force that could replace all the individual acting on an object and produce the same effect. Forces acting in the same direction add to together to make this.

Back

Charged

Front

Occurs when an imbalance between the numbers of protons and electrons exists.

Back

Electric Charge

Front

A quality had by protons and electrons that gives them an attractive force.

Back

Voltage

Front

The thing that creates current.

Back

Standing Wave

Front

The wave oscillates vertically and remains fixed. The crests and troughs no longer travel down the length of the string.

Back

Intensity

Front

The rate at which sound waves transmit energy, per unit area.

Back

Gravitational Field

Front

The space surrounding the Earth a permeated by a ___________ ____________ that's created by the Earth.

Back

Restoring Force

Front

Any force that always pushed an object toward an equilibrium position.

Back

Doppler Effect

Front

The shift in frequency and wavelength that occurs when the source and detector are in relative motion.

Back

Destructive Interference

Front

When two waves have opposite displacements and meet, the combined waveform will have a displacement of smaller magnitude than either individual wave.

Back

Decibels (dB)

Front

The loudness of sound.

Back

Longitudinal Wave

Front

A wave the travels and oscillates in the same direction. (i.e sound waves)

Back

Ohm's Law

Front

Back

Constructive Interference

Front

When two waves has displacements of the same sign when they overlap, the combined wave will have a displacement of greater magnitude than either individual wave.

Back

Direct Current

Front

When a current always travels in the same direction through the pathway.

Back

Out of Phase

Front

When two waves meet and the crest of one meets the trough of the other and vice versa. These waves will destructively interfere completely and the amplitude of the combined wave will be the difference between the individual amplitudes.

Back

Kirchhoff's Second Law (The Loop Rule)

Front

Says that the sum of the potential differences (positive and negative) That traverse any closed loop in a circuit must be zero.

Back

Conductors

Front

Materials that permit the flow of excess charge.

Back

Electric Dipole

Front

When two equal but opposite charges form a pair.

Back

Crests

Front

The points at which the rope has its maximum vertical displacement above the horizontal.

Back

Troughs

Front

The points at which the rope has its maximum vertical displacement below the horizontal.

Back

Superconductor

Front

A material that offers no resistance to the flow of charges.

Back

Transverse Wave

Front

A wave vibrating perpendicular to the direction in which it propagates (travels horizontally).

Back

Inphase

Front

When two waves meet and the crest meets the crest and trough meets trough perfectly. These waves constructively interfere and the amplitude of the combined wave will be the sum of the individual amplitudes.