DO NOW  Complete the problems under Do Now on your Daily Organizer.

TODAY’S AGENDA 5 min Do Now 5 min Important Dates 10 min Review 20 min Independent Practice 20 min Test Corrections

TODAY’S AGENDA 5 min Do Now 5 min Important Dates 10 min Review 20 min Independent Practice 20 min Test Corrections

IMPORTANT DATES & REMINDERS  Monthly News Project  Due YESTERDAY  Progress Reports  Homework due TODAY  Scheduled to come out on Friday  Friday Lab  Bring your rulers!  Auburn College Trip  Money and permission slips due FRIDAY!

TODAY’S AGENDA 5 min Do Now 5 min Important Dates 10 min Review 20 min Independent Practice 20 min Test Corrections

WORK When a force causes an object to be displaced (move or change positions).

CALCULATING WORK  F is the applied force  D is the distance your object was displaced  Θ is the angle between your force and displacement  UNITS: Joules (J) W = F  d  cos θ

QUICK REVIEW PROBLEMS  What is the work done when a force of 5 N causes an object to move 5 m?  What is the work done when a 2 kg object is lifted 2 m?  What is the work done when an object has a 20 N force applied 45 degrees above the horizontal that causes it to move 5 m?

WHAT IS POWER?  We know that work is when a force causes some displacement.  Work has nothing to do with the amount of time it takes to move that object though  You can change positions very slow or very fast and you wouldn’t know based on work by itself.  Power is the rate that work happens.

ANOTHER POWER EQUATION  You can rework the equation for power to get a new equation.  This shows us that something with a lot of power is both STRONG and FAST.

QUICK REVIEW PROBLEMS  What is the power used when 60 J of work is done an object in 10 seconds?  What is the power used when a force of 5 N is applied to make an object move 8 m in 4 seconds?  What is the power used to lift a 15 kg object 3 m in 10 seconds?

TODAY’S AGENDA 5 min Do Now 5 min Important Dates 10 min Review 20 min Independent Practice 20 min Test Corrections

INDEPENDENT PRACTICE Complete ALL of the problems in your Daily Organizer. As you complete each section, get your answers checked by Ms. Kemal before you move onto the next section. Once finished, you can move onto Test Corrections.

TODAY’S AGENDA 5 min Do Now 5 min Important Dates 10 min Review 20 min Independent Practice 20 min Test Corrections

TEST CORRECTIONS  To help our test grades, we are doing some extra credit test corrections. To do this, you must write the following for each question. For every question you do, you will receive ½ point extra credit. Make sure to write:  Problem Number  Your answer  Explanation of why your answer is wrong  Correct answer  Explanation of why that answer is correct