Quiz, Elastic PE, Power Thursday, September 11, 2014.

Slides:

Advertisements

Similar presentations

Advertisements

Elastic PE, Power, Test Review Monday, September 15, 2014.

Wave properties Wednesday, January 28, Unit 7: Waves Wednesday, 1/28 Respond to the following: Think back to the wave article you read after the.

Acceleration Friday, September 18, Friday, 9/18 Unit 1: Linear Motion  Pick up a calculator or take yours out…we will not be using our phones as.

Potential Energy. Potential Energy examples Give four examples of an object that has potential energy (not mentioned in the previous power point)

Chapter 8: Potential Energy and Conservation of Energy

The Law of Conservation of Energy states: Conservation of Energy Energy cannot be created or destroyed Energy can be transformed from one form to another.

Elastic Force and Energy Stretching or Compressing a spring causes the spring to store more potential energy. The force used to push or pull the spring.

Mr. Jean April 27 th, 2012 Physics 11. The plan:  Video clip of the day  Potential Energy  Kinetic Energy  Restoring forces  Hooke’s Law  Elastic.

Work IN, Work OUT The Work/Energy Principle. Kinetic Energy KE depends on mass and velocity Work done on an object will change KE.

Hooke’s Law and Elastic Potential Energy

Mechanical Energy Pt. 2 Week.

Foundations of Physics Assignment #12 Elastic Potential Energy Notes.

Newton’s 2 nd and 3 rd laws Wednesday, October 1, 2014.

Newton’s 2 nd, 3 rd laws, LUG Thursday, October 2, 2014.

Periodic Motion. Definition of Terms Periodic Motion: Motion that repeats itself in a regular pattern. Periodic Motion: Motion that repeats itself in.

Energy 4 – Elastic Energy Mr. Jean Physics 11. The plan:  Video clip of the day  Potential Energy  Kinetic Energy  Restoring forces  Hooke’s Law.

Constant velocity Monday, September 14, Monday, 9/14 Unit 1: Linear Motion  Find out what your elbow partner said would stop Messi. Write your.

The last days Today –Review N7-N10 test, begin review for the final Thursday – Open lab, Work on any unfinished lab or problems Friday – Review (energy.

Forces and Inertia Monday, September 22, 2014 Monday, 9/22 Unit 3: Work and Forces  Note the upcoming dates in your planner.  Take out your forces.

Review and Test Tuesday, October 6, Tuesday, 10/6 Unit 1: Linear Motion  On your warm-up draw each of the graphs below. Label the line in each.

Forces Test Friday, November 20, Friday, 11/20 Unit 4: Forces  Last chance to turn in missing work for the forces unit!  Respond to the following.

Potential Energy Potential energy can also be stored in a spring when it is compressed; the figure below shows potential energy yielding kinetic energy.

Introduction to Energy Monday, September 8, 2014.

Recall from Our Spring Lab that the Spring Constant (k) was the slope of the graph of Fs vs. x! Stronger Spring! The Spring constant or “Stiffness Factor”

Work = Force x Displacement …when F and D are in the same direction (The block would be accelerating !)

Elastic Potential Energy

Elastic P E This is the stored energy of any stretched or compressed object. You can find the EP E of an object by taking the object’s stretch (x) and.

Spring Force and Energy Notes

Test Wednesday, October 7, Wednesday, 10/7 Unit 1: Linear Motion  On your warm-up draw each of the graphs below. Label the line in each graph (acceleration.

Atomic Energy Quiz Tuesday, April 28, Unit 10: Atomic Physics Tuesday, 4/28  Take out your Atomic Physics notes and put your phones away. Upcoming.

Coulombs Law, critical reading, quiz Thursday, March 26, 2015.

3/18 do now – on a new sheet 1.A negatively charged rod is brought near a neutral object without touching it. The overall charge on the object will become.

Thermodynamics Review, group presentations Friday, January 16, 2014.

Do Now What is the difference between kinetic and potential energy?

Work and Energy Monday, January 11, Monday, 1/11  On your warm-up respond to the following:  What does the word work mean to you?  How do you.

Unit Test Wednesday, January 26, Tuesday, 1/26  If you have a smiley face on your review turn it in to the front lab table.  Pick up a calculator.

Project, quiz, review Friday, December 4, Friday, 12/4 Unit 5: Impulse and Momentum Take out your homework from Wednesday and check your answers.

Optics Friday, March 6, Unit 8: EM Spectrum/Optics Friday, 3/6  Pick up a sheet of paper (do not write on it…it’s for later)  Draw the diagrams.

Newton’s 2 nd and 3 rd laws Tuesday, September 30, 2014.

Magnets and Magnetic Fields Tuesday, April 14, 2015.

Quiz, Lenses Wednesday, March 4, Unit 8: EM Spectrum/Optics Wednesday, 3/4  Draw the mirrors below and label them (concave, convex) Upcoming dates:

Work Work Work –Work is done on an object when a force is applied and it moves in a direction that is parallel to the force acting on it.

Energy Transformation. PE vs. KE  We saw this on a quiz.

Optics practice and review Tuesday, March 17, 2015.

Work, Energy, Power Friday, January 15, Friday, 1/15  On your warm-up respond to the following:  Take out your practice problem packet from Monday/Wednesday.

Test Thursday, March 3, Unit 9: Electricity Thursday, 3/3 1. Draw a series and parallel circuit. Each circuit has a 200 V battery and three resistors.

Test Friday, March 4, Draw a series and parallel circuit. Each circuit has a 200 V battery and three resistors (5 ohms, 10 ohms, 20 ohms). 2.

Work, Energy, Power Wednesday, January 13, Wednesday, 1/13  On your warm-up respond to the following:  Take out your Work and Energy CNs.  Answer.

Simple Harmonic Motion (SHM). Simple Harmonic Motion – Vibration about an equilibrium position in which a restoring force is proportional to displacement.

Test Wednesday, April 13, Unit 11: Waves Wednesday, 4/13 Upcoming dates:  Wednesday, 4/13 – Waves test and all missing waves work is due (missing.

Test, Introduction to EM waves Tuesday, April 12, 2016.

Elastic Potential Energy. Elastic potential energy is the energy stored in elastic materials as the result of their stretching or compressing. Elastic.

Energy and Work. Work… Work = Force // x Displacement W = F // x d ** Remember that displacement is the distance AND direction that something moves. It.

Energy of Simple Harmonic Motion

Physics 11 Mr. Jean November 23rd, 2011.

Conservation of Energy

Elastic Forces Hooke’s Law.

KE and PE Practice Quiz Solutions.

Elastic Objects.

ELASTIC FORCE The force Fs applied to a spring to stretch it or to compress it an amount x is directly proportional to x. Fs = - k x Units: Newtons.

Energy Spring Force & Elastic Potential Energy.

Recall from Our Spring Lab that the Spring Constant (k) was the slope of the graph of Fs vs. x! Stronger Spring! The Spring constant or “Stiffness Factor”

Hooke’s Law Period of oscillators

Aim: How do we characterize elastic potential energy?

Warm-up! - use your notes from yesterday

Example 1 When a mass of 24kg is hung from the end of a spring, the length of the spring increased from 35cm to 39cm. What is the load on the spring in.

Presentation transcript:

Quiz, Elastic PE, Power Thursday, September 11, 2014

Thursday, 9/11 Unit 2: Work, Power, and Energy  Pick up a calculator or take out your calculator for the quiz.  Pick up a red pen (by the black trays)  Take out your homework from Tuesday.  Upcoming dates  ‘A’ day Unit 2 test – Wednesday, 9/17  Last day to turn in 1SW extra credit – Friday, 9/19

Review homework

Quiz  Take out your Energy notes, homework, practice problems, etc.  All phones need to be in your bag (don’t have a bag…put it on my desk)  Remember phone out during a quiz/test = cheating no questions asked.  When you are done with quiz flip your paper over so I know you are done. The quiz will end 15 minutes after we begin.

Elastic Potential Energy  Read the information about potential energy  During your second reading, highlight the following words:  Spring  Elastic  Energy  Potential energy  Stretch  Compress  Force  Spring constant  Equilibrium position

Elastic Potential Energy Example A plastic bullet with a mass of.45 kg is put into a toy gun. The spring in the gun has a spring constant of 200 N/m. The spring is compressed.20 meters before the bullet is released. What is the potential energy of the bullet before the trigger is pulled?

Practice problem 1 A plastic bullet with a mass of.20 kg is put into a toy gun. The spring in the gun has a spring constant of 100 N/m. The spring is compressed 4.0 x meters before the bullet is released. What is the potential energy of the bullet before the trigger is pulled?

Practice problem 2 A plastic bullet with a mass of.35 kg is put into a toy gun. The spring in the gun has a spring constant of 300 N/m. The spring is compressed 6.0 x meters before the bullet is released. What is the potential energy of the bullet before the trigger is pulled?

Power in Physics  Is a measure of how much work you do in a certain amount of time.  Remember W = F x d  The relationship of power can be analyzed by using the following equation: