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

Slides:

Advertisements

Similar presentations

Advertisements

Reading Quiz - Newton’s Laws

Newton’s 3 rd Law of Motion Action - Reaction Chapter 6.3.

I weigh 700 N and I am in a spaceship that is pushing up on me with a force of 1100 N. A. What is my mass? B. What is the net force acting on me? C. What.

Do Now: 1. Draw a free body diagram (all the forces) acting on a water skier being pulled by a boat. 2. What is the net force acting on this object?

Phy 211: General Physics I Chapter 5: Force & Motion I Lecture Notes.

The Laws of Motion Unit 3 Presentation 1.

Weight is a force that is defined from the gravitational attraction between two masses. The gravitational force causes the less massive object to accelerate.

Newton’s Laws White Board Review Pick up a board, a marker, a paper towel & a calculator!

Electromagnetics, motors, generators, transformers Wednesday, April 15, 2015.

Newton’s third law pg. 21 in NB

Newton’s Laws of Motion 1. If the sum of all external forces on an object is zero, then its speed and direction will not change. Inertia 2. If a nonzero.

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

A Force Caused by Gravity.  If we apply Newton’s 2 nd Law to objects accelerating due to gravity F G = mg  F G – force of gravity, commonly called.

Newton’s Second Law October 29, Tuesday, 10/29  Pick up video note taking guide from the Physics bin  Use your notes from yesterday to respond.

Forces and the Laws of Motion Changes in Motion Chapter 4:Section 1.

Law of Universal Gravitation. Universal Gravitation gravity is a force of attraction between any two masses gravity is a UNIVERSAL force –universal meaning.

Net Force Contents: What is the Net force Using Newton’s Second law with more than one forceUsing Newton’s Second law with more than one force Whiteboard.

SECTION 2 (PART 1) – Gravity. LEARNING GOALS  Describe gravitational force.  Distinguish between mass and weight.

Newton's Laws of Motion 1. Newton 1 st law of motion 2. Newton 3 rd law of motion 3. Newton 2 nd law of motion.

LUG and test review Monday, October 6, Monday, 10/6 Unit 3: Work and Forces  Pick up warm-up sheet from Physics bin  Write the question in the.

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.

Newton’s 3 rd Law of Motion Action - Reaction Chapter 6.3.

Bellwork Pick up a free-body diagram sheet and begin working on it.

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

 Force: A push or a pull Describes why objects move Defined by Sir Isaac Newton.

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.

Law of Universal Gravitation. Newton’s Universal Law of Gravity Legend has it that Newton was struck on the head by a falling apple while napping under.

Free body diagrams, acceleration, quiz Friday, November 6, 2015.

Basic Information: Force: A push or pull on an object Forces can cause an object to: Speed up Slow down Change direction Basically, Forces can cause an.

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.

Chapter 6 One last thing…. Newton's 3 rd Law states that…

Newton’s third Law, Quiz, Review Tuesday, November 17, 2015.

Dynamics Newton’s Laws. A force is a physical quantity that can affect the motion of an object. Since a force has magnitude, direction, and a point of.

Universal Law of Gravitations, Statics, Coulomb’s Law Tuesday, February 9, 2016.

Free Body Diagrams, acceleration, quiz Monday, November 9, 2015.

Applications of Newton’s Laws Physics 11. Numerous Applications Apparent weight Free fall Inclined planes Atwood’s machines Universal Law of Gravitation.

If it is known that A is directly proportional to B, how would A change if B is increased by a factor of 2? 1. Increase by a factor of 2 2. Increase by.

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

Newton’s Law of Universal Gravitation

Physics Fall Practice Final Exam 25 Questions Time = Less than 30 minutes.

Inertia or Weight? Newton’s 1 st & 2 nd Laws Name that Force Newton’s 3 rd Law

Gravitational Force  Gravity= a force of attraction between objects, “pulls” objects toward each other  Law of universal gravitation= all objects in.

“Law of Acceleration” Forces can be BALANCED or UNBALANCED Balanced forces are equal in size (magnitude) and opposite in direction UNbalanced.

Law of Universal Gravitation

Universal Law of Gravitations, Statics, Coulomb’s Law

Apply Newton’s First Law to the following illustration.

Newton's 3rd Law!! For every action force there is an equal and opposite reaction force!! For every action force there is an equal and opposite reaction.

Chapter 4 Objectives: 1) Define FORCE; including units.

Newton’s third law pg. 23 in NB

Class Notes 28 September Turn in HW / Pick up HW Today:

Newton’s Third Law Review Study Guide

Newton’s 3rd Law of Motion Action - Reaction

Aim: How can we apply Newton’s Second Law?

Newton’s Laws Acceleration

Interaction Forces.

Law of Universal Gravitation

Which one would be easier to accelerate by pushing?

Newton’s Laws of Motion

Newton‘s 3rd Law.

Chapter 5: Force & Motion I Lecture Notes

Using Newton’s Second Law

Ch. 5 slides.ppt Forces.ppt.

Forces and Newton’s Laws of Motion

Forces and the Laws of Motion

Newton’s Laws Examples

Let’s Play! Please listen carefully and think before answering.

Presentation transcript:

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

Thursday, 10/2 Unit 3: Work and Forces  If you are new to the class please come see me.  Pick up warm-up from Physics bin  Read the ‘I can’ statements on the side board.  Review dates below  Upcoming dates  Wednesday, 10/8 – quiz  Friday, 10/9 – Unit 3 test  Friday, 10/24 – last day to turn in 2SW extra credit  Friday, 10/31 – end of 2SW

Warm-up A rock of mass 5.0 kg is at rest on the ground. For each situation described, draw a free body diagram (forces must be to scale) and calculate the forces acting on the rock, and describe the motion (direction moving and if it is accelerating). A) The rock is at rest on the ground. Calculate the normal force exerted by the ground on the rock. b) A rope is tied to the rock and is used to pull the rock upwards. The rock accelerates at 5.0 m/s 2. Calculate the force of tension in the rope. c) As the rock is pulled upwards, the force exerted by the rope is reduced to 40 N. Calculate the acceleration of the rock.

Review in class problems

Balloon Demo

Summarize Newton’s 3 rd Law of Motion

Newton’s 3 rd Law, the Law of Interaction If (object 1) exerts a (type) force in the (direction) direction on (object 2), then (object 2) is exerting a (same type) force directed (opposite direction) on (object 1) simultaneously.

Source:

Quiz  Put your phone in your bag. If you don’t have a bag put your phone on my desk  When you are done flip your quiz over.

Review Quiz

Law of Universal Gravitation

Video  discovery-shorts-newtons-explanation-of- gravity.html discovery-shorts-newtons-explanation-of- gravity.html

Take LUG notes

Review Equation  What does the G in the equation mean? Will it ever change?  Describe the relationship between mass and distance between the objects.  What variable has greatest role in evaluating the force of gravity between objects? Support your answer

Practice Problem 1 Tom has a mass of 70.0-kg and Sally has a mass of 50.0-kg. Tom and Sally are standing 20.0m apart on the dance floor. Sally looks up and sees Tom. She feels an attraction. If the attraction is gravitational, find its size. Assume that both Tom and Sally can be replaced by spherical masses.

Practice Problem 2  What is the gravitational attraction between two spheres ( m sphere = 1.67 X kg) at a distance of 5.0 X m? 7.44 x N

Practice