Science Grade Level: 9 Physics Academic expectations of student ...

ScienceGrade Level: 9PhysicsAcademic expectations of student learning:Motion in One Dimension measure the position and time of objects moving at constant speed graph position versus time of objects moving at constant speed compute the average velocity of an object using: v = ∆x/∆t and v = (v i + v f )/2 compute the average speed of an object using: speed = distance traveled/∆t determine velocity using position, time data graph velocity versus time for an object with constant acceleration determine acceleration from velocity versus time data graph velocity versus time for objects with constant acceleration determine acceleration from velocity versus time graph using: a = ∆v/∆t calculate position change for accelerating objects when vi = 0 using: ∆x =½(a∆t 2 ) *calculate position change for accelerating objects using: ∆x = v i ∆t = ½(a∆t 2 )* For Honors Course onlyMotion in Two Dimensions distinguish between scalar quantities and vector quantities draw accurate vectors with proper scale and direction add vectors using a vector diagram (graphically) find the resulting velocity given two simultaneous velocities add vectors using decomposition (the mathematical addition of the x and ycomponents) find instantaneous position and velocity for all times during the flight of aprojectileNewton’s Laws of Motion determine the relationship among force, mass and acceleration graphically,experimentation use the equation a=ΣF/m to solve for a, F or m given two variables add forces, as vectors, to find the resultant (net) force identify common forces (normal, tension, friction, gravitational) differentiate between mass and weight use vector diagrams to find the net (resultant) force

Circular Motion and UniversalGravitation solve for Fg given G, m1, m2, and r using: Fg = Gm1m2/r 2 Solve for G, m1, m2, or rgiven Fg and the other appropriate variables using: F g = Gm 1 m 2 /r 2 solve for Fc given m, v and r using: Fc = mv 2 /r solve for m, v or r given Fc and the other appropriate variables using: Fc = mv 2 /r *combine the relationships for F c and F g to solve for planetary motionEnergyHeat solve problems for simple machines (levers, pulley, ramps) using conservations ofenergy and the relationship: Work in = Work out know how to apply: ΣWork = K use a rollercoaster to show energy transforming from potential (U) to kinetic (K)and back use power to determine work from the relationship: P = work/time given work and time, determine power using the relationship: P = work/time determine the units for work, power and energy from measured SI units know heat is a form of energy and is measured in Joules know what specific heat is and know how to determine it from experimental data know what latent heat is and know how to determine it from experimental data use the relationship: Q = mc∆T to solve for energy, specific heat, mass ortemperature given three of the four variables use the relationship: Q = mL to solve for energy, mass or latent heat given two ofthe three variables *use the relationship: Q = mc∆T + mL graph temperature as a function of heat when mass is constant, then use the graphto determine specific heat, c, and latent heat, L know how the Celsius and Kelvin temperature scales are related and know how toconvert to Celsius from Kelvin and to Kelvin from Celsius know the relationship between temperature and thermal expansion of objectsElectric state that net charge can lead to force identify 3 ways to charge an object – friction, contact and induction state those circumstances under which charges attract or repel know that charge is the result of a gain/loss of electrons know that electric forces are many orders of magnitude greater than gravitationalforcesع‎1/4π *know the inverse square nature of the electric force, k =

apply Coulomb’s Law, F = kq 1 q 2 /r 2 , in order to determine the charge, force,distance and constant know the difference between electric force and electric field sketch an electric field for a simple arrangement of charges define electric current know that voltage is a measure of electric potential know that resistance impedes the flow of electric charge know the units for voltage, current and resistance know how to experimentally measure voltage and current know how to use experimental values of voltage and current to determineresistance know how to apply and when to apply Ohm’s Law, V = IR know how to solve for voltage, current or resistance using Ohm’s Law know the difference between series and parallel circuits know how to construct both series and parallel circuitsSimple harmonic motion waves and sound recognize simple harmonic motion and differentiate simple harmonic motion fromother types of motion state how simple harmonic motion leads to wave motion know units of speed, frequency and wavelength know how to solve for speed, frequency and wavelength using the wave equation identify how frequency, speed and wavelength of a wave are generated know how speed of a wave is determined by the medium through which it travels know how frequency of a wave is determined by the source from which it isgenerated know how the wavelength of a wave is determined by a combination of themedium through which it travels and the source from which it is generated draw diagrams of constructive interference and destructive interference draw diagrams of sound waves