DVTA Jeff Ikner Physics

What is the displacement of an object measured over an interval of time? average velocity What is the rate of change in velocity? acceleration

A change in position in a particular direction. displacement A plot of the acceleration of an object as a function of time. Acceleration Time Graph Acceleration which does not change during an interval of time. constant acceleration

Velocity which does not change during an interval of time. constant velocity The length moved between two points. distance The velocity at which an object starts at the beginning of a time interval. initial velocity

The value of a quantity at a particular instant of time, such as position, velocity, or acceleration. Instantaneous The study of how motion occurs. Kinematics The zero location in a coordinate system. reference point

The ratio of distance to time. speed What two centuries marked the beginning of our modern understanding of motion? 16th and 17th What two scientists are given credit for the study of motion? Galileo and Newton

What two parts is mechanics divided? Kinematics and Dynamics Objects that move without rotating exhibit ___________ motion. translational An ___________ particle is a mathematical point with no spatial dimensions. idealized

The description of how objects move. Kinematics The study of force and why objects move as they do. Dynamics This is a measure of how far an object is from its starting point. displacement

The sum of the magnitudes of the lengths that an object has traveled. distance A quantity that has both magnitude and direction. A vector A quantity with magnitude only. A scalar

Average velocity is defined in terms of ____________, not distance. displacement Average speed and average velocity have the same magnitude when the motion is all in _____ ________. one direction When an object is slowing down we say that it is __________ decelerating

The five kinematic equations are only useful if acceleration is __________. uniform nano 10-9 Tera 1012 milli 10-3

deka 101 kilo 103 pico 10-12 Mega 106

Giga 109 micro 10-6 deci 10-1 centi 10-2

hecto 102 Why is 100 = 1? We know that 1000/1000 = 1. 1000 = 103 103 / 103 = 103-3 = 100 Therefore, 100 must be equal to 1.

What is the slope of a velocity time graph? acceleration What is the slope of a distance time graph? velocity What is the area beneath a velocity time graph? distance

What is the area beneath an acceleration time graph? velocity