1 / 31

Welcome to Earth & Physical Science (EPS)

Welcome to Earth & Physical Science (EPS). Unit 1, Day 3 ( F 8/27 , M 8/30 ) Newton’s Second Law SO 1, CO 1-3. Bell Starter. Turn in homework to folder (B Classes). Take out a pencil, paper, eraser. Blue sheet, CB, safety contract if you have them! Remove all other items from desk.

lee-cline
Download Presentation

Welcome to Earth & Physical Science (EPS)

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript


  1. Welcome toEarth & Physical Science(EPS) Unit 1, Day 3 (F 8/27, M 8/30) Newton’s Second Law SO 1, CO 1-3

  2. Bell Starter • Turn in homework to folder (B Classes). • Take out a pencil, paper, eraser. • Blue sheet, CB, safety contract if you have them! • Remove all other items from desk. • Complete EPS Pretest: Mathematics • Score will be recorded in grade book. • When done, reply to the question in your IN (upper left side of CB-remember to put the date!!): “What are your math strengths and areas to improve (weaknesses).”

  3. Today’s Agenda Newton’s Second Law: • Warm-Up: EPS pretest: Mathematics • Review Starter & Homework, Wiki Site • Problem Solving Algebraically – GUESS (SO 2) • Introduction Acceleration, Force, Mass (Notes) • Reading: Introduction to: Chapter 3 for Introduction to Newton’s Second Law (3.1, 3.2, and 3.3), (CO 1, CO 2, and CO 3, respectively) • Activity: “Think & Do” (TX pg 53, #1-#3) • Newton’s 2nd Law Problem Set (WB 9)

  4. Practice-A Classes • “Independent/Dependent Variables” Worksheet (class discussion) • “Controls and Variables – Part 1” (homework/HAUS) (WB5-6) • Required: IV & DV • Optional: Control & Conclusion

  5. Welcome Back • Please remember NO cell phones and other electronic devices visible in class • Cares, Concerns & Celebrations- RAPTOR VICTORIES

  6. IV & DV PracticeClass Discussion • The more water we use, the less there is in the reservoirs. • The more soap I use, the more suds I get. • My grades go up when I spend more time doing homework. • The kinder I am to people, the kinder they are to me.

  7. Review Homework—B Classes “Scientific Method, Controls and Variables – Part 1” • Return homework sheet and transfer grade. • Review HAUS Process (“Questions, Concerns, or Comments”) • Discussion, Pair-Share/Answers

  8. SO 2: Algebraic Problem SolvingShow all your work… Remember to solve problems, you will need to show: GUESS • Givens: • Unknown: • Equation (correct form): • Substitute (correct numeric form): • Solve for answer (include units) OR NO CREDIT WILL BE GIVEN!

  9. Write the question here

  10. SO 2: Algebraic Problem Solving (TB p 53)Copy and show all GUESS components: #3. Calculate the acceleration of a 40 kg crate of softball gear when pulled sideways with a net force of 200 N. #4. Calculate the acceleration of a 2000 kg single-engine airplane just before takeoff when the thrust of its engine is 500 N.

  11. SO 2: Algebraic Problem Solving (more practice, if time allows)Show all your work… • 5. Calculate the force needed to push a go-cart with Clark, both have a mass of 100 kg, to accelerate at 45 m/s2. • 6. A block pushed with a force of 13.5 N accelerates at 6.5 m/s2 to the left. What is the mass of the block?

  12. CO 3: Mass, Weight, & Inertia • Inertia:the tendency of an object to remain at rest or in motion with a constant velocity. • Example: The baby will remain in the car seat, unless there is a sudden motion and the baby will continue in the direction of the motion (therefore, buckle up for safety). • “What is inertia?”

  13. CO1: Velocity • Speed of an object • Direction the object is moving

  14. CO 1: Acceleration (3.1 pp 37-40) Acceleration = Any change in velocity divided by the time interval in which the change occurred. • Shows direction a = ∆ v /time a = (v2 - v1)/time

  15. CO 1: Acceleration vs. Velocity Acceleration: rate of change in velocity. • a change in speed, • a change in direction, or • a change in both speed and direction. Remember velocity: the speed (d/t) of an object and specification of its direction of motion.

  16. CO 1: Acceleration vs. Velocity“OUT” • Identify the similarities and differences between acceleration and velocity….(two column format) • Similarities: • Differences:

  17. CO 2: Force & Acceleration (3.2 pp 40-41) • Force = the cause of acceleration, or change in an object’s velocity.

  18. CO 2: Force & Acceleration • Balanced Forces =forces acting on an object that combine to produce a net force equal to zero.

  19. CO 2: Force & Acceleration • Unbalanced Forces = forces acting on an object that combine to produce a net nonzero force.

  20. CO 2: Force & Acceleration • Tug of War: • Balanced when both sides have equal force (strength). • Unbalanced when one side provides more force (strength) than the other side.

  21. CO 2: Force & Acceleration

  22. CO 3: Mass, Weight, & Inertia (3.3 pp 41-43) Mass: • Measure of the amount of matter in an object. • Mass remains the same on Earth, the moon, or an orbiting space shuttle.

  23. CO 3: Mass, Weight, & Inertia • Weight: • Gravitational force an object experiences due to its mass. • Depends on gravity.

  24. CO 3: Mass vs. Weight • Video Clip: Hammer vs. Falcon Feather • Which will fall first in space?

  25. CO 3: Mass, Weight, & Inertia • Mass is a measure of inertia. • Video Clip (mass, weight, vs. inertia)

  26. CO 3: Mass, Weight, & Inertia“OUT” Identify the similarities and differences between mass, weight, and inertia…. • Similarities: • Differences:

  27. Activity “Think & Do” • Open textbook to page 53. • With a partner complete #1-#2. • Take out a piece of paper (1 page/group). • Answer questions in complete sentences. • If time allows, complete #3. • On top of page, include your names, title, date, and period. • Due at the end of the period.

  28. Guided Reading & Note Taking Skills • Introduction Force, Mass, Acceleration (Notes) • Reading: Chapter 3 Introduction for Newton’s Second Law (3.1, 3.2, and 3.3) • Collectively complete CO 1 and CO 2 • Individually/Collectively complete CO 3 • Review CO 3

  29. Practice/Homework • Newton’s 2nd Law Problem Set (WB 7) • Complete for homework

  30. What’s Due Next Time? Organize your Composition Notebook and 3-ring Binder. Turn in all missing papers by next time for credit (late work for only one week). Controls and Variables-IV & DV ONLY) “Force and Acceleration Calcs” (WB 7)

More Related