Newton’s Second Law of Motion The net force on an object is equal to the product of its acceleration and its mass. Force = Mass X Acceleration.

Slides:

Advertisements

Similar presentations

Forces & Motion.

Advertisements

Force and Newton’s 2 nd Law. What is Force?  Definition:  A push or pull acting on an object  The SI unit for force is the Newton (N)  1 Newton is.

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?

Chapter Six: Laws of Motion

Warm-up 1. If a toy train has a mass of 1.5 kg & accelerates at a rate of 20 m/s2, what is the amount of force acting on it? 2. Make a Venn diagram comparing/contrasting.

Newton’s First and Second Laws of Motion

 Calculate the acceleration that this object experiences 30 kg 150 N.

Objectives WARM UP Identify forces of motion

Chapter 2: Force & Newton’s Laws. What is a balanced force? Forces that are equal in size but opposite direction.

Newton’s Second Law of Motion. An unbalanced force acting on an object causes the object to accelerate in the direction of the force.

Newton’s 2 nd Law of Motion. 2 nd Law Defined The acceleration of an object depends on the mass of the object and the amount of force applied The acceleration.

How to Calculate Net Force

Chapter 10 Forces - Section 3: Newton’s First and Second Laws What is Newton’s first law of motion? What is Newton’s second law of motion? Key Concepts:

In thought  Which of the following do you think would deliver a greater force when colliding with a wall? A golf ball moving at 70 m/s or a baseball.

Newton’s 2 nd Law of Motion. States that the force needed to move an object is equal to the product of that object’s mass and acceleration. Equation:

LAWS OF MOTION.

Force. Something that changes the state of rest or the state of motion of an object. Can be a push or a pull Unit of measure Newtons N.

Newton’s Laws of Motion

 Newton’s Second Law can be expressed with an equation:  Which can be re-arranged to isolate Force like this:

NEWTON’S LAWS OF MOTION I. Law of Inertia II. F=ma III. Action-Reaction.

Chapter 4 Why things move as they do. 4.1 Force: Why things accelerate Force: Any external influence that causes a body to accelerate Friction: A force.

MS. MORGAN Force. What is a Force? Something that changes the state of rest or the state of motion of an object. Can be a…. push or a pull Unit of measurement:

Unit 3 Force and Motion Study Guide. Force and Motion A force is a push or pull. Only unbalanced forces can cause an object to stop, start, or change.

Section 2.2 Acceleration and Newton’s Second Law.

Newton’s Second Law of Motion How fast does it go?

Newton’s first law of motion states that an object will remain at rest or moving at a constant velocity unless it is acted upon by an unbalanced force.

Newton’s 2 nd Law of Motion F = ma. Second Law of Motion This law states the net force of an object is equal to its mass times acceleration The equation.

Newton’s Second Law of Motion. 2 nd Law of Motion  The net (total) force of an object is equal to the product of its acceleration and its mass.  Force.

Newton’s 1 st Law: More Practice.

Newton’s 2 nd Law Chapter 6. An object accelerates when a net force acts on it.

NEWTON’S LAWS OF MOTION I. Law of Inertia II. F=ma III. Action-Reaction.

Ch. 6 – Newton’s 2 nd Law of Motion – Force & Acceleration I. Review of Previous Information A. Changes in motion (acceleration) are caused bya force!!

Newton’s Second Law of Motion

Newton’s 2nd Law of Motion

Newton’s First and Second Laws Section 10.3 Page 389

6.1 Force changes motion A force is a push or pull, or any action that is able to change motion.

Newton’s Second Law of Motion

How To Calculate Net Force

Newton’s Laws of Motion

Newton’s Second Law Chapter 13 Section 3 Part 2.

Newton’s First Law of Motion

Notes 2.2: Newton’s 2nd Law of Motion

Newton’s Second Law of Motion

Object at rest stays at rest,

Newton’s Second Law of Motion

Newton’s Second Law of Motion

Newton’s 2nd law Problems

6.2 Newton's Second Law pp

Physical Science Chapter 12 Section 1

NEWTON’S 2ND LAW OF MOTION NOTES

2nd Law Questions An object is propelled along a straight-line path by a force. If the net force were doubled, its acceleration would Quadruple Double.

Chapter Six: Laws of Motion

Newton’s Second Law Acceleration.

Chapter Six: Laws of Motion

What is Newton’s First Law of Motion?

Newton’s 2nd Law of motion

Newton’s Second Law Chapter 13 Section 3 Part 2.

Motion & Forces 6. Newton’s 2nd Law of Motion

Activity #38: Newton’s Second Law of Motion

Newton’s Second Law Acceleration.

Newton’s Third Law When one object exerts a force on a 2nd object, the 2nd object exerts an equal and opposite force on the 1st object. For every action,

Chapter Six: Laws of Motion

Free Fall October 21, 2015.

Newton’s Second Law Chapter 13 Section 3 Part 2.

Newton’s Second Law Chapter 13 Section 3 Part 2.

Motion & Forces: Newton’s Laws of Motion

Activator What does Newton’s first law of motion say? Give an example of this. What is another name for this law?

Newton’s Second Law Chapter 13 Section 3 Part 2.

Presentation transcript:

Newton’s Second Law of Motion The net force on an object is equal to the product of its acceleration and its mass. Force = Mass X Acceleration

What the 2 nd Law means: The amount of force needed to move an object depends on how much mass the object has. If you increase the mass on an object, its acceleration decreases. When the same force is applied, an object with less mass will accelerate faster. If you increase the force on an object, its acceleration also increases.

Force = Mass X Acceleration One Newton (N) equals the force required to accelerate one kilogram of mass at 1 meter per second per second. 1 Newton = 1kg x 1m/s²

FORCE = MASS X ACCELERATION Using what we know, lets say that on the way to work my truck breaks down. My truck weighs 1000 Kg. As I am pushing my truck I am able to make it roll at 0.05 m/s2. Since you know Newton's Second Law of Motion you can calculate how much force (aka NEWTONS) I am applying to my truck. FORCE = 1000 x.05 FORCE = 50 NEWTONS

Force = Mass X Acceleration How much force does a speed boat need to exert to accelerate a 52 kg water skier at a rate of 2 m/s²? Force = 52 kg X 2 m/s² Force = 104 N

Force = Mass X Acceleration 104 Newtons of force needs to be exerted by a speed boat to accelerate a 52 kg water skier 2 m/s². Force = 52 kg X 2 m/s² Force = 104 N If you increase the force exerted by the speed boat, the water skier accelerates twice as much. Acceleration = Force/Mass 4 m/s² = 208 N / 52 kg

Force = Mass X Acceleration How much force is needed to accelerate a 52 kg water skier at 4 m/s²? 208 N= 52 kg x 4 m/s² If you increase the mass of the water skier, its acceleration decreases. 2 m/s² = 208 N / 104 kg

Force, Mass, and Acceleration Think About It: How is the acceleration of a wagon related to the force pulling it? How is the acceleration of a wagon related to the mass of the wagon?