| 8474504241 | Vector | A quantity that involves both magnitude and direction. | | 0 |
| 8474504242 | Scalar | A quantity that does not involve direction. | | 1 |
| 8474504243 | Displacement | A net distance traveled including direction; An objects change in position. | | 2 |
| 8474504244 | Two-Dimensional Vectors | Vectors that lie flat in a plane and can be written as the sum of a horizontal vector and a vertical vector. | | 3 |
| 8474504245 | Unit Vectors | Special vectors that have a magnitude of 1. These include horizontal basis vector, i, and vertical basis vector, j. | | 4 |
| 8474504246 | Position | An objects location in a certain space. | | 5 |
| 8474504247 | Newton's First Law | An object will continue in its state of motion unless compelled to change by a force impressed upon it. Also called Law of Inertia | | 6 |
| 8474504248 | Inertia | An object's natural resistance to changes in their state of motion. | | 7 |
| 8474504249 | Newton's Second Law | Predicts what will happen when an unbalanced force does act on an object: the object's velocity will change / the object will accelerate. | | 8 |
| 8474504250 | Newton's Third Law | To ever action, there is an equal but opposite reaction. | | 9 |
| 8474504251 | Weight | The gravitational force exerted on an object by the Earth (or by whatever planet it happens to be on). | | 10 |
| 8474504252 | Normal Force | 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.) | | 11 |
| 8474504253 | Friction Force | 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). | | 12 |
| 8474504254 | Static Friction | A type of friction that occurs when there is no relative motion between the object and the surface (no sliding). | | 13 |
| 8474504255 | Kinetic Friction | A type of friction that occurs when there is relative motion (when the surface is sliding). | | 14 |
| 8474504256 | Coefficient of Friciton | Represents the nature of surfaces. | | 15 |
| 8474504257 | Law of Conservation of Energy | Energy can not just appear out of nowhere nor can it disappear in a closed system; it must always take on another form. | | 16 |
| 8474504258 | Work | The application of force over a distance and the resulting change in energy of the system that the force is acted on. | | 17 |
| 8474504259 | Total Mechanical Energy | The sum of an object's kinetic and potential energies. | | 18 |
| 8474504260 | Power | The rate at which work gets done, or energy gets transferred. | | 19 |
| 8474504261 | Impulse | The product of force and the time during which it acts. | | 20 |
| 8474504262 | Impulse-Momentum Theorem | Another way of writing Newton's Second Law. (Written J = change in momentum) | | 21 |
| 8474504263 | Momentum | A vector quantity given by p = mv | | 22 |
| 8474504264 | Uniform Circular Motion | When an objects speed around its path is constant. | | 23 |
| 8474504265 | Centripetal Acceleration | 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. | | 24 |
| 8474504266 | Newton's Law of Gravitation | 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 | | 25 |
| 8474504267 | Kinematics | The mathematical tools for describing motion in terms of displacement, velocity, and acceleration. | | 26 |
| 8474504268 | Potential Energy | The energy of an object or system has by virtue of its position of configuration. | | 27 |
| 8474504269 | Total Mechanical Energy | The sum of an objects kinetic and potential energies. | | 28 |
| 8474504270 | Law of Conservation of Total Energy | K(initial)+U(Initial) = K(final)+U(final) | | 29 |
| 8474504271 | Elastic Collision | A type of collision in which the objects bounce perfectly off each other in opposite directions. Kinetic Energy is conserved. Momentum is conserved. |  | 30 |
| 8474504272 | Inelastic Collision | A type of collision in which the objects travel in the same direction after the collision. Kinetic Energy is lost. Momentum is conserved. |  | 31 |
| 8474504273 | Perfectly Inelastic Collision | The objects stick together and travel in the same direction. Greatest kinetic energy is lost. Momentum is conserved. | | 32 |
| 8474504274 | Law of Conservation of Momentum | The momentum before equals the momentum after. total p (initial) = total p (final). | | 33 |
| 8474504275 | Uniform Circular Motion | The objects speed around its path (constant). | | 34 |
| 8474504276 | Centripetal Force | The force that produces centripetal acceleration. Pulls on object toward the center. | | 35 |
| 8474504277 | Universal Gravitational Constant | 9.81, signified by the capital letter G. | | 36 |
| 8474504278 | Torque | The measure of a force's effectiveness at making an object spin or rotate. | | 37 |
| 8474504279 | Translational Equilibrium | Occurs when the sum of the forces acting on an object are zero. | | 38 |
| 8474504280 | Rotational Equilibrium | If the sum of the torques acting on an object is zero. | | 39 |
| 8474504281 | Static Equilibrium | State of equilibrium when an object is at rest. | | 40 |
| 8474504282 | Rotational Inertia | The tendency of an object in motion to rotate until its acted upon by an outside force. | | 41 |
| 8474504283 | Equilibrium Position | When a spring is neither stretched nor compressed it is said to be in it ___________ ____________. | | 42 |
| 8474504284 | Hooke's Law | F = -kx | | 43 |
| 8474504285 | Simple Harmonic Motion | Any vibrating system for which the restoring force is directly proportional to the negative of the displacement is said to exhibit _________________ _______________ ______________. | | 44 |
| 8474504286 | Amplitude | The maximum displacement from equilibrium. | | 45 |
| 8474504287 | Period (T) | The amount of time it takes to complete a cycle. | | 46 |
| 8474504288 | Frequency | The number of cycles that can be completed per unit time. | | 47 |
| 8474504289 | Simple Pendulum | Consists of a weight of mass attached to a string or a mass-less rod that swings, without friction, about the vertical equilibrium position. | | 48 |
| 8474504290 | Mechanical Wave | A disturbance transmitted by a medium from one point to another, without the medium its self being transported. | | 49 |
| 8474504291 | Crests | The points at which the rope has its maximum vertical displacement above the horizontal. | | 50 |
| 8474504292 | Troughs | The points at which the rope has its maximum vertical displacement below the horizontal. | | 51 |
| 8474504293 | Transverse Wave | A wave vibrating perpendicular to the direction in which it propagates (travels horizontally). |  | 52 |
| 8474504294 | Superposition (Of Waves) | 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. | | 53 |
| 8474504295 | Constructive Interference | 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. |  | 54 |
| 8474504296 | Destructive Interference | When two waves have opposite displacements and meet, the combined waveform will have a displacement of smaller magnitude than either individual wave. |  | 55 |
| 8474504297 | Inphase | 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. | | 56 |
| 8474504298 | Out of Phase | 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. | | 57 |
| 8474504299 | Standing Wave | The wave oscillates vertically and remains fixed. The crests and troughs no longer travel down the length of the string. |  | 58 |
| 8474504300 | Longitudinal Wave | A wave the travels and oscillates in the same direction. (i.e sound waves) | | 59 |
| 8474504301 | Intensity | The rate at which sound waves transmit energy, per unit area. | | 60 |
| 8474504302 | Decibels (dB) | The loudness of sound. | | 61 |
| 8474504303 | Beat | When two waves interfere constructively, producing an increase in sound level. | | 62 |
| 8474504304 | Beat Frequency | Equal to the difference between the frequencies of the two combining sounds. |  | 63 |
| 8474504305 | Doppler Effect | The shift in frequency and wavelength that occurs when the source and detector are in relative motion. | | 64 |
| 8474504306 | Electric Charge | A quality had by protons and electrons that gives them an attractive force. | | 65 |
| 8474504307 | Charged | Occurs when an imbalance between the numbers of protons and electrons exists. | | 66 |
| 8474504308 | Coulomb's Law | |  | 67 |
| 8474504309 | Electric Field | The presence of charge creates an ___________ ___________ in the space that surrounds it. | | 68 |
| 8474504310 | Gravitational Field | The space surrounding the Earth a permeated by a ___________ ____________ that's created by the Earth. | | 69 |
| 8474504311 | Electric Dipole | When two equal but opposite charges form a pair. | | 70 |
| 8474504312 | Conductors | Materials that permit the flow of excess charge. | | 71 |
| 8474504313 | Insulators | A material whose internal electric charges do not flow freely. | | 72 |
| 8474504314 | Superconductor | A material that offers no resistance to the flow of charges. | | 73 |
| 8474504315 | Ohm's Law | |  | 74 |
| 8474504316 | Direct Current | When a current always travels in the same direction through the pathway. | | 75 |
| 8474504317 | Voltage | The thing that creates current. | | 76 |
| 8474504318 | Kirchhoff's First Law (The Junction Rule) (The Node Rule) | Says that the total current that enters a junction must equal the total current that leaves the junction. | | 77 |
| 8474504319 | Kirchhoff's Second Law (The Loop Rule) | Says that the sum of the potential differences (positive and negative) That traverse any closed loop in a circuit must be zero. | | 78 |
| 8474504320 | Net Force | 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. | | 79 |
| 8474504321 | Restoring Force | Any force that always pushed an object toward an equilibrium position. | | 80 |
