Transcript Introduction to Year 12 Physics

Introduction to Year 12 Physics
Zahra Pirvali
Murray Thompson
Introduction to Year 12 Physics
SACE Board
http://www.sace.sa.edu.au/web/physics/
Introduction to Year 12 Physics
Motion in Two Dimensions
Topic 1: Projectile Motion
Application: Projectiles in Sport
Topic 2: Uniform Circular Motion
Application: The Banking of Road Curves
Topic 3: Gravitation and Satellites
Application: Weather and Communication Satellites
Topic 4: Momentum in Two Dimensions
Application: Spacecraft Propulsion
Introduction to Year 12 Physics
Electricity and Magnetism
Topic 1: Electric Fields
Application: Photocopiers and Laser Printers
Topic 2: The Motion of Charged Particles in Electric Fields
Application: The Use of Electric Fields in Cyclotrons
Topic 3: Magnetic Fields
Application: The Moving-coil Loudspeaker
Topic 4: The Motion of Charged Particles in Magnetic Fields
Application: The Use of Magnetic Fields in Cyclotrons
Introduction to Year 12 Physics
Light and Matter
Topic 1: Electromagnetic Waves
Application: Laser Airborne Depth Sounder
(LADS)
Topic 2: The Interference of Light
Application: Compact Discs
Topic 3: Photons
Application: The Use of X-rays in Medicine
Topic 4: Wave Behaviour of Particles
Application: Electron Microscopes
Introduction to Year 12 Physics
Atoms and Nuclei
Topic 1: The Structure of the Atom
Application: Lasers
Topic 2: The Structure of the Nucleus
Application: The Production of Radioisotopes
Topic 3: Radioactivity
Application: Positron Emission Tomography
(PET)
Topic 4: Nuclear Fission and Fusion
Application: Fission Nuclear Power
Introduction to Year 12 Physics
http://www.youtube.com/watch?v=h2I8AoB1xgU
Introduction to Year 12 Physics
If there is no air between Earth and Mars what does
the rocket push against to get to Mars?
If almost all of the fuel is used to escape the Earth’s
gravity, how can the rocket make all the way to Mars?
How do they calculate the orbits around Earth and
Mars?
What keeps a satellite in orbit? What is
weightlessness?
How can they work out how much force is required to
slow the capsule down in 7 minutes? What is 7g?
What alternatives can be used to power a space craft?
Welcome to Stage 2 Physics
Text
Physics KEY IDEAS Parts 1 & 2 (3rd edition)
Welcome to Stage 2 Physics
Skills and Assessment Tasks
Investigations Folio
30%
40%
Practical Investigations
Issues Investigation
External examination
30%
Welcome to Stage 2 Physics
You are expected to do about 4 hours
of work in Physics per week in
addition to programmed time.
Welcome to Stage 2 Physics
1 ½ hours
1 ½ hours
-weekly assignment
-studying and learning from
texts and notes etc
1 hour - Information Search, practical
preparation, essays etc
This is a rough guide only.
• https://www.youtube.com/watch?v=cArihD
TnOZg&index=4&list=PLEDWnfmzB8FJjRk7liyeNEvdeO3FdOPU
Introduction to Year 12 Physics
Energy
The curriculum statement assumes that the student has had a
thorough introduction to the concept of energy and its
conservation. Specifically, students should be familiar with the
expressions for work (including examples in which the force is at
an arbitrary angle to the displacement), kinetic energy, and
gravitational potential energy. Energy conservation should have
been considered using as large a number of practical situations
as possible. Students should understand and be able to
distinguish between elastic and inelastic collisions.
Introduction to Year 12 Physics
Section 1: Motion in Two Dimensions
Position in one dimension.
Displacement as change in position.
Distinction between displacement and distance travelled.
Average and instantaneous velocity in one dimension.
Graphs of position versus time and velocity versus time.
Acceleration in one dimension.
Vertical free fall under gravity.
Introduction to Year 12 Physics
Gravitational force (F = mg near the Earth’s surface).
Equations for constant acceleration in one dimension.
Scalar quantities and vector quantities.
Representation of vector quantities by scale diagrams.
Vector addition and subtraction.
Components of velocity and acceleration.
Period.
Tension.
Normal force.
Introduction to Year 12 Physics
Inertia and Newton’s first law of motion.
Newton’s second law of motion in one dimension.
Net force in two dimensions as the vector sum of the forces
acting on an object.
Components of a force in two dimensions.
Newton’s third law of motion.
Distinction between mass and weight.
Momentum and its conservation in one dimension.
Introduction to Year 12 Physics
Section 2: Electricity and Magnetism
Electric charge.
Conductors and insulators.
Ionisation.
Electric current as a flow of charge (I = q/t).
Conventional current.
Potential difference and current in series and parallel circuits.
Measurement of potential difference and current.
Resistance (R = V/I).
Electric power (P = VI).
Introduction to Year 12 Physics
Section 3: Light and Matter
Transverse and longitudinal waves.
Frequency.
Wavelength.
Polarisation.
Wave-front.
Partial reflection and partial transmission of
light.
Regions of the electromagnetic spectrum.
Introduction to Year 12 Physics
Section 4: Atoms and Nuclei
Simple nuclear model of the atom.
Chemical elements
Introduction to Year 12 Physics
Assumed Knowledge of Mathematics
Rearrangement of algebraic equations.
Equation of a straight line (including gradient
and y intercept).
Definition and use of sine, cosine, and tangent
in right-angled triangles.
Solution of quadratic equations.
Introduction to Year 12 Physics
Pythagoras’ theorem.
Direct and inverse proportionality.
Distinction between proportionality and linear
dependence.
Relation between circumference and radius of a
circle.
Meaning of the term ‘complementary angles’.
Welcome to Stage 2 Physics
Text
Physics KEY IDEAS Parts 1 & 2 (3rd edition)
Welcome to Stage 2 Physics
•Skills and Application Tasks ..……30 Marks
This includes all the Tests and a portion of the mid-year Exam
•Folio Tasks…………………………40 Marks
This includes all the Practical work + Issues investigation
•External Examination……………....30 marks
TOTAL
100 Marks
Welcome to Stage 2 Physics
You are expected to do about 4 hours
of work in Physics per week in
addition to programmed time.
Welcome to Stage 2 Physics
1 ½ hours
1 ½ hours
-weekly assignment
-studying and learning from
texts and notes etc
1 hour - Issues Investigation,
practical preparation, etc
This is a rough guide only.
Welcome to Stage 2 Physics
It is most important that you recognise that
if students work cooperatively as a group,
learning from one another, then they should
all perform better in the final examination
and your school based marks will be
moderated upwards. This cooperation
makes the learning good fun and they will
all benefit.
Introduction to Year 12 Physics
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understanding information
the formulation of a specific question
getting information from a variety of sources - not just the
internet
appropriate acknowledgment of the information sources see your diary
relating physics ideas
organising and interpreting physics ideas
communicating physics ideas
use of terminology and notation
evaluating information critically