MOTION (KINEMATICS)

1 MOTION ( kinematics ) DEPARTMENT OF EDUCATION GRADE 11 MODULE 2 PUBLISHED BY FLEXIBLE OPEN AND DISTANCE EDUCATION PRIVATE MAIL BAG, WAIGANI, NCD FOR DEPARTMENT OF EDUCATION PAPUA NEW GUINEA 2017 PHYSICS Writer Tommy Sariaman Content Editors Science Department Subject Review Committee Language Editor Dr. Mirzi. L. Betasolo Course Format Editor Elizabeth. W. Aimundi GR 11 PHYS M2 TITLE 1 GRADE 11 PHYSICS MODULE 2 ( MOTION ) kinematics IN THIS MODULE YOU WILL LEARN ABOUT: : CHARACTERICS OF MOTION : GRAPHS OF MOTION : LINEAR MOTION : TWO DIMENSIONAL MOTION GR 11 PHYS M2 ACKNOWLEDGEMENT & ISBN 2 Flexible Open and Distance Education Papua New Guinea Published in 2017 Copyright 2017, Department of Education Papua New Guinea All rights reserved.

2 No part of this publication may be reproduced, stored in a retrieval system, or transmitted in any form or by any means electronic, mechanical, photocopying, recording or any other form of reproduction by any process is allowed without the prior permission of the publisher. Printed by the Flexible, Open and Distance Education ISBN 978-9980-89-540-0 National Library Services of Papua New Guinea Acknowledgement We acknowledge the contribution of all Lower and Upper Secondary teachers who in one way or another helped to develop this Course. Our profound gratitude goes to the former Principal of FODE, Mr. Demas Tongogo for leading FODE towards this great achievement. Special thanks are given to the staff of the Science Department of FODE who played active roles in coordinating writing workshops, outsourcing of module writing and editing processes involving selected teachers of Central Province and NCD.

3 We also acknowledge the professional guidance and services provided through-out the processes of writing by the members of: Science Subject Review Committee-FODE Academic Advisory Committee-FODE Science Department- CDAD This book was developed with the invaluable support and co-funding of the GO-PNG and World Bank. DIANA TEIT AKIS Principal-FODE . GR 11 PHYS M2 CONTENTS 3 TABLE OF CONTENTS Page 1 Acknowledgement & 2 3 Secretary s 4 MODULE : MOTION ( kinematics ) 5 - 130 Course 5 Learning 6 Time 7 : Characteristics of 8 - 37 Distance, Displacement, Speed, 9 - 22 23 - 37 : Graphs of 38 - 69 Distance Time 39 - 42 Velocity Time 42 - 59 The Ticker-Tape 6 60 - 69 : Linear 70 - 89 Equations of Linear 70 - 79 Free Fall 80 - 89.

4 Two Dimensional 90 - 116 Projectile 9 90 - 104 circular 1 105 - 112 Rotary 112 - 117 118 - 119 Answers to Learning 120 - 136 137 Quantities, Symbols and 138 GR 11 PHYS M2 ACKNOWLEDGEMENT & ISBN 4 SECRETARY S MESSAGE Achieving a better future by individual students, their families, communities or the nation as a whole, depends on the kind of curriculum and the way it is delivered. This course is part of the new Flexible, Open and Distance Education curriculum. The learning outcomes are student-centred and allows for them to be demonstrated and assessed. It maintains the rationale, goals, aims and principles of the National Curriculum and identifies the knowledge, skills, attitudes and values that students should achieve.

5 This is a provision by Flexible, Open and Distance Education as an alternative pathway of formal education. The Course promotes Papua New Guinea values and beliefs which are found in our constitution, Government policies and reports. It is developed in line with the National Education Plan (2005 2014) and addresses an increase in the number of school leavers affected by lack of access into secondary and higher educational institutions. Flexible, Open and Distance Education is guided by the Department of Education s Mission which is fivefold; To develop and encourage an education system which satisfies the requirements of Papua New Guinea and its people To establish, preserve, and improve standards of education throughout Papua New Guinea To make the benefits of such education available as widely as possible to all of the people To make education accessible to the physically, mentally and socially handicapped as well as to those who are educationally disadvantaged The College is enhanced to provide alternative and comparable path ways for students and adults to complete their education, through one system, two path ways and same learning outcomes.

6 It is our vision that Papua New Guineans harness all appropriate and affordable technologies to pursue this program. I commend all those teachers, curriculum writers, university lecturers and many others who have contributed so much in developing this course. UKE KOMBRA, PhD Secretary for Education GR 11 PHYSICS M2 INTRODUCTION 5 MODULE MOTION ( kinematics ) Introduction In this module, you are introduced to MOTION ( kinematics ) without considering what caused it. There are fundamental principles governing MOTION , and they can be used to explain the MOTION of an object. MOTION of objects and people can be quite complex, so we usually simplify it in a number of ways. In this module, you will study straight line MOTION and then you will look at MOTION under constant acceleration. MOTION in two dimensions will be studied with the use of vectors.

7 This module has four (4) four topics. The first topic explains the characteristics of MOTION . It describes the different types of MOTION that we see and experience every day. The next topic is all about reading and plotting graphs. MOTION in straight line, help us calculate the distance, displacement, acceleration speed, and velocity of an object moving along the surface or falling downwards. The equations of MOTION , you will study under linear MOTION can be applied in two dimensional MOTION . The projectile, circular and rotary motions are the topics that explain moving objects in the circular path. The learning activities and their answers are given right after you study each topic to help understanding it better. However, there may be some words that may be slightly difficult. If you cannot understand a word or words, please do consult your tutor.

8 This module is also a follow up to the first module on Measurement. It requires reasoning skills and your knowledge of mathematics to help you solve word problems. You will also need to have a scientific calculator to assist you in your calculations. Always remember to take note of any equation and formulas that you come across in the module for use in other modules. The more you use them you will go through the module with ease. At the end of the module, you will find a table of units containing some quantities with their corresponding units that should help to solve word problems. The picture below shows examples of motions we see every day. Busy traffic Cyclists moving around a bend GR 11 PHYS M2 OUTCOMES 6 Learning Outcomes After going through this module, you are expected to: describe the characteristics of linear MOTION including distance, displacement, speed, velocity, acceleration, instantaneous and average speed, velocity and acceleration, and calculate these quantities from a given set of experimental data.

9 Emphasise the correct units of the quantities described. perform vector analysis on displacement, velocity and acceleration. draw and interpret distance time, speed time, velocity time, displacement time and acceleration time graphs. conduct ticker timer experiments for uniform and accelerated motions and plot the relevant graphs. describe the MOTION of an object (uniform and non-uniform) from a ticker tape and record graphs. determine unknown parameters from graphs of MOTION ; for example, area under displacement-time graph represents average velocity of the moving object. solve worded problems with the aid of diagrams. derive and explain the following equations of linear MOTION using graphs where necessary. apply the equations to calculate parameters such as distance, displacement, speed, velocity, acceleration and time.

10 Translate the above equations of linear MOTION to one-dimensional vertical MOTION of an object under the influence of gravity, as the MOTION of this object, is an example of a linear MOTION . apply equations of MOTION to one-dimensional free-fall MOTION (vertical) and solve problems associated with this MOTION . draw graphs of MOTION in two dimensions from a given set of experimental data and worked examples on a two-dimension projectile MOTION . describe the projectile MOTION in two separate directions, vertical and horizontal directions, and emphasise the essential facts about the MOTION along each direction. derive the relevant equations of MOTION along each direction. solve word problems on projectile MOTION . describe quantities of circular MOTION and their units including angular displacement ( ), velocity ( ) and acceleration ( ).