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Physics Regents Review Sheet I KNOW… General Information _____ all of the units used in the topic(s) that I am studying. _____ how to interpret numbers written in scientific notation. _____ how to solve any algebra problems given. 1-D Motion _____ the difference between scalar and vector quantities and can name a few examples _____ how to calculate distance _____ how to calculate displacement _____ when to use positive and negative signs for displacement _____ how to calculate speed _____ how to calculate velocity (including positive/negative signs) _____ how to calculate acceleration _____ what it means when acceleration is negative _____ how and when to use the 5 formulas (v = d/t, a = vf-vi/t, vf=vi+at, vf2=vi2+2ad, d=vit+(1/2)at2) _____ how to interpret distance, velocity, and acceleration graphs _____ when to find the slope of a graph _____ when to calculate the area under the curve of a graph Projectiles _____ the acceleration due to gravity on Earth _____ when to make 9.8 negative _____ when initial/final velocity is 0 _____ what horizontal acceleration is _____ how to make horizontal and vertical columns of information _____ how to calculate horizontal and vertical velocity when fired at an angle _____ the shape of a projectile fired at an angle or horizontally Forces _____ the difference between mass and weight _____ when mass changes and when weight changes _____ how to calculate weight _____ Newton’s 1st Law of Motion _____ what inertia is and what affects it _____ Newton’s 2nd Law _____ how to find the net force _____ how and when to use F = ma _____ when the net force is 0 _____ the net force on an object when it is moving at a constant velocity _____ Newton’s 3rd Law _____ what the normal force is and how to calculate it _____ what friction is _____ what the coefficient of friction is _____ the direction of friction _____ what happens if I’m standing on a scale in an elevator and it moves up/down Circular Motion _____ the direction of centripetal acceleration and centripetal force _____ how to calculate the centripetal acceleration _____ how to calculate the centripetal force _____ how centripetal force and acceleration are related to radius _____ the direction of tangential velocity _____ how to calculate the distance around a circle _____ how to calculate the velocity around a circle _____ why an object travels in a circular path _____ what holds a car in a circular turn _____ what holds a ball on a string in a circular path _____ what holds the Earth in its path around the Sun _____ Newton’s Universal Law of Gravitation _____ what G represents _____ how weight (force due to gravity) is related to distance of separation _____ Kepler’s Laws Momentum _____ what momentum is _____ when an object has momentum _____ how momentum is affected by an increase in velocity or mass _____ how to calculate momentum _____ what impulse is _____ how to calculate impulse _____ that impulse is the same as a change in momentum _____ Law of Conservation of Momentum _____ when to use conservation of momentum _____ the difference between elastic and inelastic collisions Energy _____ how to calculate the work done on an object _____ the force used to lift an object upward _____ what you give an object when do work in lifting it up _____ what you give an object when you push an object along a table _____ what power is _____ how to calculate power _____ the relationship between power and time _____ the different types of energy _____ what potential energy is _____ how to calculate potential energy _____ the relationship between work and potential energy _____ what kinetic energy is _____ how to calculate kinetic energy _____ the relationship between kinetic energy and velocity _____ the relationship between work and kinetic energy _____ the Law of Conservation of Energy _____ when to use Conservation of Energy _____ what a pendulum is _____ how to calculate the period of a pendulum _____ how Conservation of Energy relates to the pendulum _____ Hooke’s Law _____ what is the spring constant _____ how to calculate elastic potential energy _____ how a spring relates to energy and work