PPT-1.1 scalar, vector, distance, displacement, speed, velocity

Know The definition of scalar and vector quantities Understand Concept of distance displacement speed and velocity Be able to Determine distance and displacement in a given situation with units. In maths, words can be very important and sometimes have a more specific meaning than we first think.. For example, if we talk about ‘doing a sum’, many people think this means the same as a ‘doing a calculation’, but ‘sum’ means ‘addition’, so 7-3=4 is not strictly a ‘sum’ at all.. M. echanics. - the study of the motion of objects. we focus on the language, principles, and laws that describe and explain the motion of objects. Kinematics. is the science of describing the motion of objects using words, diagrams, numbers, graphs, and equations. . Chapter 11.1. Frame of Reference. Everyone wants to go fast. Whether it is a gangster on a bike or an antelope running away from a cheetah. . To describe either of these motions correctly, we need to have a frame of reference. . Today’s Learning Objectives. Know the terms in this chapter.. Why is a reference point needed to describe motion?. What is the difference between distance and displacement?. How do you add vectors?. © 2015 Pearson Education, Inc.. Velocity and Speed. Speed measures only how fast an object moves, but velocity tells us both an object’s speed . and its direction. .. The . velocity defined by Equation 1.2 is called the . Task 1 . Get into pairs having one person facing the board (Person A) whilst the other faces away (Person B). . Person A will be shown a distance-time graph, they must explain the journey that it shows to Person B. . June 2013. June 2013. June 2013. Pure linear motion. Linear motion movement of a body in a . straight. line or . curved line. , where . all parts . move the same distance, in the same direction over the same time.. PHYS 243. Giancoli. , Sec 2-1, 2, 3, 4. © . 2011, . B.J. . Lieb. Analysis of a Race. All distances measured from starting line.. Time measured by a stopwatch from sound of gun.. Initial speed will be zero. . A . vector quantity. is a quantity that has both magnitude and direction. Velocity, acceleration, and force are examples of vector quantities. . A . scalar quantity. is a quantity that has magnitude, but no direction. Time, mass, volume, and speed are examples of scalar quantities.. Name: . Hour: . Determine displacement based on distance measurements.. Calculate speed and velocity based on position and elapsed time.. Create and interpret distance-time graphs.. Calculate acceleration based on speed and elapsed time.. Lesson 11 . February 2. nd. , 2011. If a student said that they had to walk 800m to get to school today, you would only know the distance they travelled and the destination. You would not know their starting point or the directions they took to get here. 9/18/18. What Is Motion?. Motion is when an object changes place or position. . To properly describe motion, you need to use the following:. Start and end position?. Movement relative to what?. How far did it go?. Velocity is a vector, speed a scalar. Average speed – total distance divided by time. Average velocity – total displacement divided by time. Speed and velocity may or may not have the same magnitude. Definitions . Speed. : speed of an object is define as the distance traveled by it per unit time .I.e. speed of an object tells us how fast an object moves. Expression for speed : let distance traveled by an object be S in time t .then.