 Continuing Physics: NCEA Level 3 (2e) : 9781442561113

# Continuing Physics: NCEA Level 3 (2e)

Edition

2
ISBN

9781442561113
ISBN 10

1442561114
Published

09/11/2012

Pearson New Zealand
Pages

260
Format

Available on demand Book + Disk
\$44.99

##### Description

Designed to support the classroom, laboratory work and revision required for NCEA Level 3 Physics.

Features include:
• plain language learning objectives to focus student study
• easy-to-read notes containing the essential information students need
• clear, simple diagrams
• margin space for additional definitions or notes (ideal for ESOL students)
• review questions with write-on spaces that invite completion - plus NCEA style AME marking schedules
• a practical section that covers all the essential practicals at this level and ensures that students will have a record of their lab work for revision at the end of the year.

The companion CD is intended for home use. It includes:
• links to hundreds of interactive simulations and other web resources, carefully chosen for their applicability to this course
• data for the practicals
• judgement statements for the questions.

Contents

Preface

Physics 3.4 TOPIC ONE: TRANSLATIONAL MOTION

Translational Kinematics
• Vector and scalar quantities
• Definitions and symbols
• Translational kinematics equations

Forces and Newton ’s laws
• Newton ’s three laws of motion
• Free body diagrams
• Extension: Connected particles

Components
• Circular motion

Conservation Laws
• Momentum
• Conservation of momentum
• Impulse
• Conservation of energy
• Work, energy and power

Centre of Mass
• Formula for centre of mass position
• Formulae for centre of mass velocity and acceleration
• Motion of the centre of mass

Gravitation
• Newton ’s law of gravitation
• Extension: The Earth’s gravitational field

Satellites
• Extension: Kepler’s three laws
• Extension: Binary star systems

Exercise One: Translational Mechanics

Physics 3.4 TOPIC TWO: ROTATIONAL MOTION

Rotational Kinematics
• Connecting formulae
• Rotational kinematics equations

Force and Torque
• Torque
• External forces
• The effect of forces on the motion of an object

Angular Momentum and Planetary Motion
• Angular momentum
• Conservation of angular momentum
• Planetary motion
• Newton ’s laws in rotational form

Rotational Inertia
• A formula for I

Rolling Motion
• Kinetic energy

Exercise Two: Rotational Motion

Physics 3.4 TOPIC THREE: SIMPLE HARMONIC MOTION

Introduction to Simple Harmonic Motion (SHM)
• Definition of simple harmonic motion
• Hooke’s law

Reference Circle

Graphs, Phasors and Equations
• Phasors
• Equations

The Simple Pendulum
• Extension: General programme

Energy of Simple Harmonic Motion
• Introduction
• Potential energy
• Kinetic energy
• Total energy
• Graphs
• Extension: Damped simple harmonic motion

Forced Simple Harmonic Motion and Resonance

Exercise Three: Simple Harmonic Motion

Physics 3.3 TOPIC FOUR: WAVES 1

Introduction to Wave Motion
• Longitudinal waves
• Transverse waves
• Wavelength
• Period
• Frequency
• Velocity
• Phase
• Extension: Energy
• Extension: Graphs
• Electromagnetic waves

Superposition and Beats
• Introduction
• Superposition of SHMs of equal frequency
• Beats
• General

Standing Waves
• Introduction
• Standing waves in strings
• Standing waves in air columns
• Extension: Speed of sound in an ideal gas

Exercise Four: Standing Waves and Music

Physics 3.3 TOPIC FIVE: WAVES 2

Interference
• Diffraction
• Interference
• Young’s double-slit experiment
• Interference of sound waves
• Double-slit formulae derivation
• The diffraction grating
• Extension: Thin film interference

Earthquakes
• Extension: Speed of waves in elastic media
• Extension: Speed of seismic waves

The Doppler Effect
• Introduction
• Moving source, stationary observer
• Extension: Moving observer, stationary source
• The Doppler effect in astronomy
• Travel at the speed of sound
• Extension: Speed measurement by radar

Exercise Five: Interference and the Doppler Effect

Physics 3.6 TOPIC SIX: DIRECT CURRENT (DC) ELECTRICITY

Introduction to DC Electricity
• Current
• Potential
• Ohm’s law
• Extension: Resistivity
• Electrical power
• Transmission of electricity
• Resistances in series
• Resistances in parallel
• Internal resistance
• Extension: Meters

Kirchhoff’s Laws
• Kirchhoff’s current law (KCL)
• Current convention
• Kirchhoff’s voltage law (KVL)

Exercise Six: DC Circuits

Physics 3.6 TOPIC SEVEN: CAPACITANCE

Electric Field Strength
• Field between large parallel plates
• Another important formula for E

Capacitance
• Capacitors
• Capacitance
• The parallel plate capacitor
• Energy stored in a capacitor
• Capacitances in parallel
• Capacitances in series
• Uses of capacitors

RC Circuits
• Charging a capacitor
• Discharging a capacitor
• Time constant

Exercise Seven: Capacitors

Physics 3.6 TOPIC EIGHT: MAGNETIC FIELDS

Introductory Concepts
• Magnetic forces
• Force formulae
• Path followed by a charge in a magnetic field
• Fields produced by currents
• Extension: Magnetic field of a long, straight wire
• The coil or solenoid
• Extension: Magnetic field of a long, thin coil

Electromagnetic Induction
• Derivation of formula
• Magnetic flux
• Lenz’s law

Mutual Inductance
• Introduction
• Mutual inductance
• The transformer
• Telephone wires

Self Inductance
• Introduction
• Formulae
• Energy stored in an inductance
• Real-world inductors
• Extension: Inductance of a solenoid
• Car ignition system

RL Circuits
• Time constant
• Extension: LC circuits

Exercise Eight: Electromagnetic Induction

Physics 3.6 TOPIC NINE: ALTERNATING CURRENT (AC) ELECTRICITY

RMS Values
• Mains electricity
• Power
• RMS (root mean square) values

AC in a Capacitance
• Introduction
• Reactance of a capacitance
• Phase relationship for a capacitance

AC in an Inductance
• Introduction
• Reactance of an inductance
• Phase relationship for an inductance

• Alternating current in an RC circuit
• Alternating current in an RL circuit

Resonance
• Applications
• Extension: DC power supplies

Exercise Nine: AC Circuits

Physics 3.5 TOPIC TEN: MODERN PHYSICS

The Photoelectric Effect
• Definition
• The experiment
• The results
• The conclusion—the photon model of light
• The wave/particle duality of light
• Extension: Matter waves

Atomic Spectra
• Ionisation and conductivity
• Problems with the Rutherford model of the atom
• The hydrogen line spectrum
• The Bohr model of the hydrogen atom
• Improvements on the Bohr model of the hydrogen atom
• Extension: Relativity

Nuclear Physics
• Symbols
• Isotopes
• Half-life
• Nuclear fission
• Alpha decay
• Beta decay
• Gamma emission
• Nuclear fusion
• Conservation laws for nuclear reactions
• The electron volt
• Nuclear forces
• Binding energy
• Mass deficit
• Nuclear physics applications

Exercise Ten: Modern Physics

Physics 3.2 TOPIC eleven: APPLICATION OF PHYSICS

Research Project
• Deciding on a research topic
• Planning
• Presentation
• Depth of study

Physics 3.7 Topic TWELVE: An Informed Responding to a Socio-Scientific Issue

An Informed Response
• Examples of socio-scientific issues
• Choosing a socio-scientific issue
• Presentation
• Depth of study

Physics 3.1 TOPIC Thirteen : PRACTICAL INVESTIGATIONS

Uncertainties
• Sources of uncertainty
• Rules for manipulating uncertainties
• Rules for measurements
• Uncertainties and graphs
• Using graphs to find non-linear relationships
• Extension: The use of logarithms in finding non-linear relationships

Exercise Thirteen: Dealing with uncertainties

PRACTICAL ACTIVITIES ONE: TRANSLATIONAL MOTION
• The conical pendulum
• Trolleys and the centre of mass

PRACTICAL ACTIVITIES TWO: ROTATIONAL MOTION
• Finding the rotational inertia of a wheel
• Finding the rotational inertia of a thin-walled cylinder from the conservation of energy
• Finding rotational inertia from conservation of angular momentum

PRACTICAL ACTIVITIES THREE: SIMPLE HARMONIC MOTION
• Factors affecting the period of a simple pendulum (investigation)
• Factors affecting the period of an oscillating mass on the end of a spring (investigation)

PRACTICAL ACTIVITY FOUR: WAVES 1
• Standing waves on a string: the relationship between velocity and tension

PRACTICAL ACTIVITIES FIVE: WAVES 2
• Measuring the track spacings on a CD • Measuring the speed of sound (whole class activity)

PRACTICAL ACTIVITIES SIX: DC ELECTRICITY
• Proof of Kirchoff’s Laws
• The internal resistance of a power pack

PRACTICAL ACTIVITIES SEVEN: CAPACITANCE
• Factors affecting the capacitance of a pair of parallel plates (investigation)
• The time constant for a capacitor–resistor series circuit

PRACTICAL ACTIVITIES EIGHT: MAGNETIC FIELDS
• The time constant for an inductor–resistor series circuit
• Comparing input/output voltages of efficient transformers

PRACTICAL ACTIVITY NINE: AC ELECTRICITY
• Measuring the phase relationships of VR, VC and VL in series circuits

PRACTICAL ACTIVITY TEN: MODERN PHYSICS
• Verifying the Balmer series for hydrogen

PRACTICAL ACTIVITIES ELEVEN: PRACTICAL INVESTIGATIONS
• Accuracy in taking measurements
• Graphical analysis
• Problem solving and experiment design

Formulae List
Index