Presentation on theme: "Physics: AN UNBELIEVABLE EXPERIENCE!! What is Physics? The science of matter and energy and the interaction of the two."— Presentation transcript:
Physics: AN UNBELIEVABLE EXPERIENCE!!
What is Physics? The science of matter and energy and the interaction of the two.
Class 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) Know how to say and spell Matysczak. Know how to say and spell Matysczak. Mrs. Matysczak says homework is an option…but in reality it is a necessity. Mrs. Matysczak says homework is an option…but in reality it is a necessity.
Labs Want to create an awesome color tee shirt? You will learn how different colors mix together to form new colors and patterns.
Concepts Motion Momentum Force Thermodynamics Uniform Acceleration & Kinematic Equations WavesWaves and Energy TransferEnergy Transfer VectorSoundSound WavesWaves Work and Energy Light Waves
Motion Kinematics- the study of motion of an object Motion involves: Displacement (d)- measure of change of position Time (t)- time it takes to change position Velocity (v)- change in position per interval of time V=d/t
Force A force is a push or pull on an object Force is measured in Newtons which is a kilogram times a meter per second kilogram times a meter per second squared. squared. Force = mass x acceleration Force of gravity keeping the riders in their seats.
Uniform Acceleration & Kinematic Equations Uniform Acceleration occurs when the speed of an object changes at a constant rate. Formulas: 1. d=1/2t(Vf+Vi) 2. Vf=Vi+at 3. d=Vi(t)+a(t)^2 4. Vf^2=Vi^2+2a(d) Uniform acceleration is measured in meters per second squared. d= displacement a= acceleration t= time Vi= initial velocity Vf= final velocity
Vector Vector- anything that has magnitude and direction Vector Resolution- the process for determining the magnitudes of components of a vector in 2 dimensions Formulas: 1. V x-axis= vector x (cosine of the angle) 2. V y-axis= vector x (sine of the angle) 3. Resultant= (R x^2 + R y^2)^1/2 V= vector Rx= resultant of x-axis Ry= resultant of y-axis
Work and Energy Potential Energy- energy of position or configuration Conservation of Energy- energy cannot be created 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
Momentum Momentum is the measure of how hard it is to stop an object, which deals with Newtons 2 nd Law. Formula: 1. P= m(v) The unit for momentum is a kilogram times a meter per second. P- momentum m- mass v- velocity
Thermodynamics Thermodynamics is the study of heat, thermal energy, and involves: States of matter States of matter Temperature Temperature Heat Heat Thermal equilibrium Thermal equilibrium Change of state Change of state Thermal energy transfer Thermal energy transfer Laws of Thermodynamics Laws of Thermodynamics Thermal energy- the internal motion of the molecules that make up an object
Waves and Energy Transfer Wave motion transports energy from one point to another. Wave pulse: Traveling wave: 3 Types of Waves: 1. Mechanical 2. Electromagnetic 3. Matter
Waves Reflection of waves: Refraction of waves: Diffraction of waves:
Sound Waves Sound waves are the compression of waves. The frequencies of a sound wave is the number of oscillations per second. Amplitude is the loudness of the sound. The speed of sound in air formula: (T) T- temperature
Light Waves The study of light is called ray optics. Light waves travel in a straight line path, therefore represented by a ray. The speed of light waves in a vacuum (c) is constant. c= 3 x 10^8 meters/per second REDORANGEYELLOWGREENBLUEINDIGOVIOLET Colors of the Spectrum