Physics: AN UNBELIEVABLE EXPERIENCE!! What is Physics? The science of matter and energy and the interaction of the two.

Physics:Physics:AN UNBELIEVABLE AN UNBELIEVABLE

EXPERIENCE!!EXPERIENCE!!

What is Physics?What is Physics?

The science of matter The science of matter

and energy and theand energy and the

interaction of the two.interaction of the two.

Class RequirementsClass Requirements Sleep at least 8 hours a night.Sleep at least 8 hours a night.

Be sure to eat your Wheaties! Be sure to eat your Wheaties! (every morning)(every morning)

Know how to say and spell Matysczak.Know how to say and spell Matysczak.

Mrs. Matysczak says homework is an Mrs. Matysczak says homework is an option…but in reality it is a necessity.option…but in reality it is a necessity.

LabsLabsWant to create an awesome color Want to create an awesome color

tee shirt?tee shirt?

You will learn how different colors mix together to form new colors and patterns.

ConceptsConcepts

Motion Momentum

Force ThermodynamicsUniform Acceleration & Kinematic Equations

Waves and Energy Transfer

Vector Sound Waves

Work and EnergyLight Waves

MotionMotion

Kinematics- the study of motion of an Kinematics- the study of motion of an objectobject

Motion involves:Motion involves:

Displacement (d)- measure of change of positionDisplacement (d)- measure of change of position

Time (t)- time it takes to change positionTime (t)- time it takes to change position

Velocity (v)- change in position per interval of Velocity (v)- change in position per interval of timetime

V=d/V=d/tt

ForceForce

A force is a push or pull on an objectA force is a push or pull on an object

Force is measured in Newtons which Force is measured in Newtons which is ais a

kilogram times a meter per secondkilogram times a meter per second

squared.squared.

Force = mass x accelerationForce = mass x acceleration

Force of Force of gravity gravity keeping keeping the the riders in riders in their their seats.seats.

Uniform Acceleration Uniform Acceleration & Kinematic Equations& Kinematic Equations

Uniform Acceleration occurs when the speed of an Uniform Acceleration occurs when the speed of an object changes at a constant rate.object changes at a constant rate.

FormulasFormulas::1.1. d=1/2t(Vf+Vi)d=1/2t(Vf+Vi)2.2. Vf=Vi+atVf=Vi+at3.3. d=Vi(t)+a(t)^2d=Vi(t)+a(t)^24.4. Vf^2=Vi^2+2a(d)Vf^2=Vi^2+2a(d)

Uniform acceleration is measured in meters per Uniform acceleration is measured in meters per second squared.second squared.

d= displacement

a= acceleration

t= time

Vi= initial velocity

Vf= final velocity

VectorVector

Vector- anything that has magnitude and Vector- anything that has magnitude and directiondirection

Vector Resolution- the process for Vector Resolution- the process for determining the magnitudes of determining the magnitudes of components of a vector in 2 dimensionscomponents of a vector in 2 dimensions

Formulas:Formulas:

1.1. V x-axis= vector x (cosine of the angle) V x-axis= vector x (cosine of the angle)

2.2. V y-axis= vector x (sine of the angle)V y-axis= vector x (sine of the angle)

3.3. Resultant= (R x^2 + R y^2)^1/2Resultant= (R x^2 + R y^2)^1/2

V= vectorRx= resultant of x-axisRy= resultant of y-axis

Work and EnergyWork and Energy

Potential Energy- energy of position or Potential Energy- energy of position or configurationconfiguration

Conservation of Energy- energy cannot be Conservation of Energy- energy cannot be created or destroyedcreated or destroyed

U= m(g)(h) u- potential energy

m- mass

g- acceleration due to gravity

h- height above zero point

Ki + Ui = Kf + Uf

Ki- intial kinetic energy

Ui- intial potential energy

Kf-final kinetic energy

Uf-final potential energy

MomentumMomentum

Momentum is the measure of how Momentum is the measure of how hard it is to stop an object, which hard it is to stop an object, which deals with Newton’s 2deals with Newton’s 2ndnd Law. Law.

Formula:Formula:

1.1. P= m(v)P= m(v)

The unit for momentum is a kilogram The unit for momentum is a kilogram times a meter per second.times a meter per second.

P- momentumm- mass v- velocity

ThermodynamicsThermodynamics

Thermodynamics is the study of heat, thermal Thermodynamics is the study of heat, thermal energy, and energy, and

involves:involves:• States of matterStates of matter• TemperatureTemperature• HeatHeat• Thermal equilibriumThermal equilibrium• Change of stateChange of state• Thermal energy transferThermal energy transfer• Laws of ThermodynamicsLaws of Thermodynamics

Thermal energy- the internal motion of the Thermal energy- the internal motion of the molecules that make up an objectmolecules that make up an object

Waves and Energy Waves and Energy TransferTransfer

Wave motion transports energy from one Wave motion transports energy from one point to another.point to another.

Wave pulse:Wave pulse:

Traveling wave:Traveling wave:

3 Types of Waves:3 Types of Waves:1.1. MechanicalMechanical2.2. ElectromagneticElectromagnetic3.3. MatterMatter

WavesWaves

Reflection of waves:Reflection of waves:

Refraction of waves: Refraction of waves:

Diffraction of waves:Diffraction of waves:

Sound WavesSound Waves

Sound waves are the compression of Sound waves are the compression of waves.waves.

The frequencies of a sound wave is the The frequencies of a sound wave is the number of oscillations per second.number of oscillations per second.

Amplitude is the loudness of the Amplitude is the loudness of the sound. sound.

The speed of sound in air formula:The speed of sound in air formula:331.4 + .6(T) T- temperature

Closed-Pipe Resonator

Open-Pipe Resonator

Clarinet Flute

Light WavesLight Waves

The study of light is The study of light is called ray optics.called ray optics.

Light waves travel in a Light waves travel in a straight line path, straight line path, therefore therefore represented by a represented by a ray. ray.

The speed of light The speed of light waves in a vacuum waves in a vacuum (c) is constant.(c) is constant.

c= 3 x 10^8 c= 3 x 10^8 meters/per secondmeters/per second

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Colors of the Spectrum