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Physics I

Semester Two

Text Book: Physics: Principles & Problems by Zitzewitz and Murphy(GLENCOE).

Teacher: Eman Sarhan, M.A Room: 215

Email: esarhan29@email.com

Phone: (773)534-2320

Physics I is a first year physics class designed to introduce the fundamental physical laws that form the foundation for all sciences. Topics covered in this class include the laws of motion, gravity, electricity and magnetism, heat, light, optics, and modern physics. There will also be an emphasis on hands-on experiments as well as applications to everyday life.

Physics Concepts and Supporting Ideas

Conceptual Statement I: Waves

Most energies in the universe are transferred by a series of vibrations known as waves. This is true of sound and electromagnetic radiation.

Supporting Ideas:

Chapter 14 Waves and Energy Transfer

1. Transverse and longitudinal waves carry energy from a vibrating source to a receiver without transferring matter from one to the other. Waves may be described in terms of wavelength, frequency and velocity and amplitude.

2. Interference patterns occur when waves from different sources arrive at the same point at the same time. Interference may be constructive or destructive and may produce a stationary pattern.

Chapter 15 Sound

3. Sound is mechanical energy carried by matter in the form of longitudinal waves. Within a certain range of frequencies, these waves produce the sensation of hearing. A sound is described in terms of pitch and loudness. Resonance results when the sound vibrations correspond to the natural frequencies of the vibrator.

Chapter 16 Light

4. Light is electromagnetic energy in the form of transverse waves. Within a certain range of frequencies, these waves produce the sensation of sight. Light is described in terms of color and intensity. Because light waves are transverse, they may be polarized.

5. Color of an object is dependent on the frequencies of light reflected (if opaque) or transmitted (if transparent) to the eye. Different combinations of frequencies produce different colors.

Chapter 17 Reflection and Refraction

6. Reflection occurs when a wave encounters a barrier and bounces off. It is described by the Law of Reflection, which states that the angle of incidence equals the angle of reflection. Mirrors give good evidence of this law.

Chapter 18 Mirrors and Lenses

7. In refraction, a wave reaches the boundary between to media and changes direction and speed as it enters the new medium.

Conceptual Statement II: Electricity and Magnetism

Electricity and magnetism are forms of one of the most fundamental forces in the universe.

Supporting Ideas:

Chapter 20 Static Electricity

1. Electric charges can be either positive or negative. Like charges repel each other and unlike charges attract each other, which may be expressed by Coulomb’s law. Static charges can be produced by rubbing, which separates positive and negative charges. These charges will then attract or repel through an electric field.

Chapter 21 The Electric Field

2. The work done to move a unit charge from one point to another is the potential difference (voltage) between the points. The electric current is the rate at which charge flows between the points.

3. The ratio of potential difference to current is called the resistance and varies greatly from substance to substance. Materials are classified as conductors, semi-conductors or insulators depending on the magnitude of their resistance.

Chapter 22 Current Electricity

4. A circuit is a closed conducting path incorporating a source of electrical energy. The variation in current in the circuit follows the variation in the voltage of the source. The power delivered by the source to the circuit is the product of the voltage of the source and the current.

Chapter 23 Series and Parallel Circuits

5. A series circuit has a single continuous path. A parallel circuit has several conducting paths or branches. Different parts of a single circuit may be either connected in series or parallel.

Chapter 24 Magnetic Fields

6. Magnets have north and south poles. Like poles repel each other and unlike poles attract each other through magnetic fields. Electromagnets are produced by electric currents and the strength of the field is dependent on the current, the geometry and the presence of ferromagnetic materials. These magnetic forces cause motors to run.

Chapter 25 Electromagnetic Induction

7. A force acts on an electric charge moving perpendicularly through a magnetic field which is used to create electric motors. Achanging magnetic field creates an electric field around it, described as an induced voltage, which can be used in generators and transformers. Both an electric current and a changing magnetic field create magnetic fields around them. The interplay between the changing fields creates electromagnetic waves, used in numerous household devices (television and microwave ovens).

Course Outline 2003-2004

Course Title: Physics

Semester One

Week

Topic

Subtopic

Illinois State Goals

1-2

Measurement

What is Physics

Scientific method

Visualizing data

SI System

11.A,B

3-7

Kinematics

Motion

Speed/ Velocity

Acceleration

Graphs of motion

Vectors

11.A,B

8-11

Dynamic I

Free Fall

Simple Harmonic Motion/Pendulum

Projectile Motion

Rotational Motion

11.A, B, 12.D

12-17

Dynamics II

Forces

Newtons’ Laws

Gravitation

Momentum

Conversation of Momentum

Impulse

Collisions

11.A, B, 12.D, F

18-20

Work and Energy

Work

Energy

Forms of Energy

Conservation of Energy

Power

11.B, 12.D

Physics Grading System

 

Assignment

PErcentile

Notes

Attendance

20%

*2 points per day present

*-1 point for tardy

*200 points per semester

Homework

20%

*10 points per homework.

*10 homework  required per quarter , 20 per semester.

  all others count as extra credit

Tests

10%

*all exams included:

  -CASE exam, midterm exam, all quizzes and chapter tests

Read & Write

10%

*5  points per week, 20 per semester.  All  others count as extra credit.

*100 points per semester

Labs

20%

*20 points per lab

*make-up available, depending                       on the chapter studied

Science Project

10%

*options: experiment, bridge contest, poster,  Career report, scientist  biography etc.

Field Trip

10%

*5% for attendance.  5% for completing the worksheet.

*options: build a roller-coaster, write a report on roller-coasters

90-100       A

80-89          B

70-79      C

60-69       D

-- -59       F

Major Dates

Midterm/Quarter Exam

Follow school Calendar

Amundsen H.S. Bridge Contest

Feb   /2004

Science Project

April 10-14/2004

Great America Trip

May   /2004

AP Test

May   /2004

Final Exam

June   /2004