Key Terms and Concepts
(Law of Inertia)
- Define position, velocity, and acceleration and explain how they are related.
- Define free-fall acceleration and calculate the drag force on objects moving through fluids.
- Translate motion graphs into descriptions of motion in terms of position, velocity and acceleration. Translate descriptions of motion into motion graphs.
- Apply kinematics and Newton’s Second Law of Motion to analyze and predict 1-D motion.
a force applied by a fluid to any object moving with respect to the fluid, which acts opposite to the relative motion of the object relative to the fluid
a number characterizing the effect of object shape and orientation on the drag force, usually determined experimentally
a force acting opposite to the relative motion of any object moving with respect to a surrounding fluid
a state of being in motion, but having no net force, thus the motion is constant
an object's motion will not change unless it experiences a net force
the tenancy of an object to resist changes in motion
the speed at which restive forces such as friction and drag balance driving forces and speed stops increasing, e.g. the gravitational force on a falling object is balanced by air resistance
location in space defined relative to a chosen origin, or location where the value of position is zero
change in position, typically in reference to a change away from an equilibrium position or a change occurring over a specified time interval
distance traveled per unit time
a quantity of speed with a defined direction, the change in speed per unit time, the slope of the position vs. time graph
the change in velocity per unit time, the slope of a velocity vs. time graph
the acceleration experienced by an object is equal to the net force on the object divided my the object's mass
a calculation that is run on a computer following a program that implements a mathematical model for a physical system