Section 1
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Static Friction
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Last updated
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Date created
Mar 1, 2020
Cards (81)
Section 1
(50 cards)
Static Friction
A type of friction that occurs when there is no relative motion between the object and the surface (no sliding).
Vector
A quantity that involves both magnitude and direction.
Uniform Circular Motion
When an objects speed around its path is constant.
Torque
The measure of a force's effectiveness at making an object spin or rotate.
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.)
Rotational Equilibrium
If the sum of the torques acting on an object is zero.
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.
Weight
The gravitational force exerted on an object by the Earth (or by whatever planet it happens to be on).
Simple Harmonic Motion
Any vibrating system for which the restoring force is directly proportional to the negative of the displacement is said to exhibit _________________ _______________ ______________.
Law of Conservation of Total Energy
K(initial)+U(Initial) = K(final)+U(final)
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
Amplitude
The maximum displacement from equilibrium.
Period (T)
The amount of time it takes to complete a cycle.
Hooke's Law
F = -kx
Mechanical Wave
A disturbance transmitted by a medium from one point to another, without the medium its self being transported.
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.
Scalar
A quantity that does not involve direction.
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.
Kinetic Friction
A type of friction that occurs when there is relative motion (when the surface is sliding).
Uniform Circular Motion
The objects speed around its path (constant).
Unit Vectors
Special vectors that have a magnitude of 1. These include horizontal basis vector, i, and vertical basis vector, j.
Displacement
A net distance traveled including direction; An objects change in position.
Potential Energy
The energy of an object or system has by virtue of its position of configuration.
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
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.
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).
Power
The rate at which work gets done, or energy gets transferred.
Impulse
The product of force and the time during which it acts.
Kinematics
The mathematical tools for describing motion in terms of displacement, velocity, and acceleration.
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.
Momentum
A vector quantity given by p = mv
Static Equilibrium
State of equilibrium when an object is at rest.
Inertia
An object's natural resistance to changes in their state of motion.
Equilibrium Position
When a spring is neither stretched nor compressed it is said to be in it ___________ ____________.
Work
The application of force over a distance and the resulting change in energy of the system that the force is acted on.
Frequency
The number of cycles that can be completed per unit time.
Total Mechanical Energy
The sum of an object's kinetic and potential energies.
Law of Conservation of Momentum
The momentum before equals the momentum after. total p (initial) = total p (final).
Translational Equilibrium
Occurs when the sum of the forces acting on an object are zero.
Newton's Third Law
To ever action, there is an equal but opposite reaction.
Total Mechanical Energy
The sum of an objects kinetic and potential energies.
Impulse-Momentum Theorem
Another way of writing Newton's Second Law. (Written J = change in momentum)
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.
Perfectly Inelastic Collision
The objects stick together and travel in the same direction. Greatest kinetic energy is lost. Momentum is conserved.
Centripetal Force
The force that produces centripetal acceleration. Pulls on object toward the center.
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.
Coefficient of Friciton
Represents the nature of surfaces.
Universal Gravitational Constant
9.81, signified by the capital letter G.
Position
An objects location in a certain space.
Rotational Inertia
The tendency of an object in motion to rotate until its acted upon by an outside force.
Section 2
(31 cards)