# Junior Physics: Study Guide

4.11 - 1251 ratings - Source

JUNIOR PHYSICS is a comprehensive study guide aimed at middle school or junior secondary school students (grades 7 to 9, ages 12 to 15). It is a carefully designed and written revision ebook to help students improve their knowledge and understanding in Physical Science. The notes are presented in a bullet-point style, packed with colourful annotated info-graphics, diagrams, tables and charts to help students consume and digest facts quickly. Annotated diagrams and tables are extensively used in this book to make learning easy and to facilitate studentsa understanding and mastery of the subject. Whilst this book is not written to address specific state-based or ministry-based syllabi, it is written to address the selected Physics content domain that is widely taught and relevant to most physics courses around the world. Its contents cover wide ranges of selected topic areas in the TIMSS 2015 Science Framework for the Eighth Grade, Key Stage 3 Science, IB MYP Science, ICAS Science, NGSS, Australian Curriculum, and many more! The contents covered in this ebook are: Chapter 1: Dynamics Chapter 2: Air pressure Chapter 3: Stability Chapter 4: Simple machines Chapter 5: Energy Chapter 6: Heat Chapter 7: Electricity and electromagnetism Chapter 8: Generation of electricity Chapter 9: Stars and galaxies Chapter 10: Space exploration This book is written in plain English; therefore it serves as an excellent resource to assist students make a smooth transition from Primary Science to Secondary Science. Hence, JUNIOR PHYSICS is an ideal bridging resource to help students who are new to secondary school get off to a flying start. This book is also a great revision companion for those who are studying for exams or refreshing and recalling their knowledge and understanding on certain concepts without having to read through pages and pages of school textbooks again. We hope that this book makes Physics interesting for you.(a) Tightening a nut: Perpendicular distance 15 cm 20 N 90Ad = 15 cm = 0.15 m The moment of force =20NA0.15m=3Nm (clockwise moment) ... from the fulcrum Distance of effort Load (N) A from the fulcrum Effort (N) (m) = (m) 4 The relationship is called the principle of lever. Example 1 Problem: What is the effort needed to lift.

 Title : Junior Physics: Study Guide Author : Jo Hawkins Publisher : Learning Space Australia - 2014-05-12