Physics+I-Chapt+2-ICE+Review

As of 10/14/09

Chapter 2 You may find this power point useful while you are reviewing.

Collision ProblemExample

From Mrs. J.

Here are the things you should know how to do:

Define distance and displacement and distinguish between them

Define speed and velocity and distinguish between them

Know the difference between initial velocity, final velocity and average velocity

Define acceleration

State when displacement, velocity and acceleration are positive and when they are negative

Interpret position v. time graphs and velocity v. time graphs and distinguish between them

Using graphs and slopes, find velocity from position v. time graphs and acceleration from velocity v. time graphs

Explain why a graph of velocity v. displacement is NOT a straight line, even when initial velocity is zero.

Know the BIG 5 equations of kinematics (S only)

Be able to derive the BIG 5 equations of kinematics from definitions of acceleration and of average velocity (S only)

Use the equations of kinematics to solve problems involving the motion of an object with a single acceleration, by filling in charts such as the following:

Use equations of kinematics to solve problems with successive accelerations by filling in charts such as the following
 * v0 ||  ||
 * v ||  ||
 * a ||  ||
 * t ||  ||
 * x ||  ||

Use equations of kinematics to solve problems involving the motion of more than one object by filling in charts such as the following
 * || I || II || III ||
 * v0 ||  ||   ||   ||
 * v ||  ||   ||   ||
 * a ||  ||   ||   ||
 * t ||  ||   ||   ||
 * x ||  ||   ||   ||

Solve "collision" problems recognizing when a collision will take place and when it will not.
 * || Object 1 || Object 2 ||
 * v0 ||  ||   ||
 * v ||  ||   ||
 * a ||  ||   ||
 * t ||  ||   ||
 * x ||  ||   ||

Define free fall and recognize situations in which free fall is occurring

Use the acceleration due to gravity (which EVERYONE must know) in solving equations involving objects in free fall

Explain why the acceleration due to gravity is a negative number ALWAYS

Use the symmetries of motion in problem solving