Physical Sciences Survival Kit

CAPE WINELANDS EDUCATION DISTRICT PHYSICAL SCIENCES SURVIVAL GUIDE

Cape Winelands Education District PHYSICAL SCIENCES GRADE 12 SURVIVAL KIT TERMS & DEFINITIONS, QUESTIONS & ANSWERS PER TOPIC HOW TO USE THIS DOCUMENT 1. Firstly, you must make sure that you study the terms and definitions provided for each topic. Theory always forms part of any test or examination, and you should ensure that you obtain full marks for ALL theory questions. Revise terms and definitions of topics already completed frequently so that you know them by the time you are sitting for a test or an examination. 2. Answer all the questions on a certain topic. DO NOT look at the answers before attempting the questions. First try it yourself. Compare your answers with the answers in the memorandum. Mark your work with a pencil and do corrections for your incorrect answers. If you do not know how to answer a question, the answers are there to guide you. Answers supplied are from memoranda used to mark the questions in previous years. 3. Work through all the questions and answers of a particular topic before you sit for an examination, even if you answered the questions before. TABLE OF CONTENTS PAPER 1: NEWTON’S LAWS ......................................................................................................... 2 VERTICAL PROJECTILE MOTION ............................................................................... 6 MOMENTUM AND IMPULSE ....................................................................................... 11 WORK, ENERGY AND POWER ................................................................................... 14 DOPPLER EFFECT ...................................................................................................... 18 ELECTROSTATICS ...................................................................................................... 20 ELECTRIC CIRCUITS .................................................................................................. 23 ELECTRICAL MACHINES ............................................................................................ 26 OPTICAL PHENOMENA AND PROPERTIES OF MATERIALS .................................. 28 PAPER 2: ORGANIC MOLECULES …………………..................................................................... 31 REACTION RATE AND ENERGY IN CHEMICAL REACTIONS .................................. 36 CHEMICAL EQUILIBRIUM ........................................................................................... 39 ACIDS AND BASES ..................................................................................................... 43 GALVANIC CELLS ........................................................................................................ 48 ELECTROLYTIC CELLS ............................................................................................... 51 1

Cape Winelands Education District PAPER 1 NEWTON’S LAWS 2

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Cape Winelands Education District [15] ANSWERS 4

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Cape Winelands Education District VERTICAL PROJECTILE MOTION 6

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Cape Winelands Education District ANSWERS 8

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Cape Winelands Education District MOMENTUM AND IMPULSE 11

Cape Winelands Education District ANSWERS 12

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Cape Winelands Education District WORK, ENERGY AND POWER 14

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Cape Winelands Education District ANSWERS 16

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Cape Winelands Education District DOPPLER EFFECT 18

Cape Winelands Education District ANSWERS 19

Cape Winelands Education District ELECTROSTATICS 20

Cape Winelands Education District ANSWERS 21

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Cape Winelands Education District ELECTRICITY 23

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Cape Winelands Education District ANSWERS 25

Cape Winelands Education District ELECTRICAL MACHINES 26

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Cape Winelands Education District ANSWERS OPTICAL PHENOMENA 28

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Cape Winelands Education District PAPER 2 ORGANIC CHEMISTRY 31

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Cape Winelands Education District Click on the following link for tutoring videos on organic chemistry: https://sites.google.com/wced.info/cwedtutoring/recordings?authuser=0 33

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Cape Winelands Education District REACTION RATE AND ENERGY IN CHEMICAL REACTIONS 36

Cape Winelands Education District REACTION RATE 37

Cape Winelands Education District ANSWERS 38

Cape Winelands Education District CHEMICAL EQUILIBRIUM 39

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Cape Winelands Education District ANSWERS 41

Cape Winelands Education District [13] 42

Cape Winelands Education District ACIDS & BASES 43

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Cape Winelands Education District ELECTROCHEMICAL CELLS 47

Cape Winelands Education District GALVANIC/VOLTAIC CELLS 48

Cape Winelands Education District ANSWERS 49

Cape Winelands Education District ELECTROLYTIC CELLS 50

Cape Winelands Education District ANSWERS 51