Monday, February 27th Entry Task No entry task brochure today Schedule: Force review Newton’s Law foldable (1st law of motion) Objective: I can understand that force and mass determine acceleration Homework: 11.1 RSG Please have on desk: Inertia activity, ISN

Newton's Laws Foldable You will create a foldable that explains and illustrates Newton’s three laws of motion. Your foldable must have an overall theme. Ex: a type of sport, nature activity, hobby…

Newton's Laws Foldable 1. Determine your theme. Complete the front of your foldable. 2. For each of Newton’s laws of motion, - write the law at the top of the page draw, label, and color a drawing that illustrates this law. Your drawing must follow the theme you chose explain HOW your drawing illustrates that particular law of motion

Drawings are original neat and colored; clearly match explanation 9-10 6-8 1-5 Explanation clearly shows understanding of law; written law included Explanation shows knowledge of law, but not understanding; written law included Explanation show limited knowledge of law; written law not included Drawings are original neat and colored; clearly match explanation Drawings are not original, but neat and colored; do not clearly match explanation Drawings are not original, messy and not colored; no match to explanation

Tuesday, February 28th Entry Task Schedule: 1. Clear off your table except ISN & textbook 2. Discuss QUIETLY with your neighbor how mass and inertia are related. Schedule: Newton’s Second Law of Motion Objective: I can explain the relationship between mass, force, and acceleration. Homework: Questions 1-4, pg 359 IQIA! (on ISN 24) Please have on desk: ISN

Newton’s 2nd Law of Motion Newton’s Second Law of Motion states that the acceleration of an object increases with increased force and decreases with increased mass. It also states that the direction in which the object accelerates is the same as the direction of the force.

determine Acceleration 11.2 – Force and Mass determine Acceleration If you want to give 2 objects with different masses the same acceleration, you apply different forces

Newton’s 2nd Law Newton observed that the motion of an object depends on the mass of the object and the force applied to it. If mass is constant, Increasing Force, increases Acceleration Decreasing Force, decreases Acceleration

Newton’s 2nd Law Ex: you have two soccer balls side by side. You kick one with a small force and you kick the other as hard as you can. The ball that you kicked with more force will accelerate faster and go further. Greater force applied to the same mass means greater acceleration

Newton’s 2nd Law If the force is constant, Increasing Mass decreases Acceleration Decreasing Mass , increases Acceleration

Newton’s 2nd Law If a basketball and a bowling ball are thrown into the air with the same force, then the basketball will go higher because it has less mass than the bowling ball. Same force applied to lesser mass means greater acceleration

Newton’s 2nd Law If you want the same acceleration of the basketball and the bowling ball, you will have to give more force to the bowling ball because the bowling ball has a greater mass. More mass means more force needed to achieve same acceleration.

Newton’s 2nd Law Formula You can calculate the force, the mass, or the acceleration if you know two of the three factors. The formula for Newton’s second law is Force = mass ● acceleration or F = ma

What are the units? newton (N) is the unit for force kilogram (kg) is the unit for mass m is the unit for acceleration s2 A newton (N) = 1kg ● m

Wednesday, March 1st Entry Task Clear off your table except for your ISN open to the pg 359 questions, calculator, and pencil Schedule: 11.1 Quiz Newton’s 2nd law math practice Objective: I can calculate and graph data using Newton’s 2nd law Homework Complete math handouts Please have on desk: ISN, calculator, and pencil

Newton’s 2nd Law If Mr. Brownlee wants the same acceleration of Micah and Elise, he will have to give more force to Micah to reach the height, because Micah has a greater mass. More mass means more force needed to achieve same acceleration.

You try this! What force is needed to accelerate a 10 kg shopping cart 3 m/s2?

You try this! 2. If a team pulls with a combined force of 9000 N on an airplane with a mass of 30,000 kg, what is the acceleration of the airplane?

You try this! 3. A model rocket is accelerating at 2 m/s2. The force on it is 1 N. What is the mass of the rocket?

Remember, Homework is to complete the math handouts. Meet in room 111 downstairs tomorrow. Bring ONLY your ISN, agenda, and pencil.

Thursday, March 2nd Entry Task Sit at a computer Log on and go to http://phet.colorado.edu 3. ISN open to yesterday’s math is beside you. Schedule: Newton’s 1st and 2nd law lab Objective: I can demonstrate, analyze, and understand Newton’s first and second laws of motion Homework: Complete lab answer sheet handout

From the Phet site, Click “Play with Simulations” Click on “Physics” Scroll down to Forces and Motion: Basics and click on it Click on the symbol Select “Net Force” (tug of war) and set up the scenario as per your handout.

Friday, March 3rd Entry Task Schedule: Objective: Homework: Newton’s 2nd law review 11.2 quiz Newton’s 3rd law Objective: I can identify action and reaction forces. Homework: Review 11.1 and 11.2 Newton’s law foldable (1st and 2nd should be mostly done Monday Please have on desk: Newton’s 1st and 2nd laws lab answer sheet

Newton’s third law of motion Whenever one object exerts a force on a second object, the second object exerts an equal and opposite force on the first.

What does it mean? All forces act in pairs! Newton’s third law of motion means that All forces act in pairs! Newton’s third law only addresses forces. The way that the force pairs interact affects the motion of objects.

Force pairs do not act on the same object. The ACTION FORCE is the swimmer’s hands and feet pushing on the water. The REACTION FORCE is the water pushing on the swimmer’s body. The reaction force moves the swimmer forward

Another example The ACTION FORCE is the book pushing on the table. The REACTION FORCE is the table pushing on the book.

The ACTION FORCE is the person pushing on the wall. The REACTION FORCE is the wall pushing on the person. Why is the result different?

Here is another example of a force pair.

Here is another example of a force pair.

What are the action and reaction forces?

What are the action and reaction forces?