Newton’s Second Law of Motion

Slides:

Advertisements

Similar presentations

Newton’s Third Law of Motion:

Advertisements

Force Diagrams and Calculations More Math!!!. Force Diagram 1 Are the forces acting on this object balanced or unbalanced? What is the net force acting.

Newton’s Second Law Coach Dave Edinger J. C. Booth Middle School Physical Science (8A) Mrs. Coach Ed R-O-C-K-S !!!

Newton’s first law REVIEW

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.

Newton’s Laws of Motion. Sir Isaac Newton ( )  an English scientist and mathematician famous for his discovery of the law of gravity also discovered.

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.

Newton’s Second Law of Motion Chapter 4, Section 3 Pg

Newton’s Second Law of Motion

Newton’s 2nd Law of Motion

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

Newton’s Second Law of Motion

Newton’s Laws of Motion

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.

Chapter 10 Forces Objects will not begin to move or change motion until an unbalanced force acts on it. Newton’s 1st Law of Motion Inertia All mass resists.

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.

WARM UP What are the short names for Newton’s 3 Laws of Motion?

Lesson 7 Newton’s Laws of Motion Ms. Newsome and Ms. Tripp.

Newton’s Second and Third Laws Chapter 4 Section 3.

Newton’s Laws 10min test q1 Motion direction pull Weight (force due to gravity – don’t just say ‘gravity’) Friction (opposite to the motion) Contact force.

Accelerated Motion. Newton’s Second Law of Motion (Law of Force)- Net force acting on an object causes the object to accelerate in the direction of the.

Evidence for Newton’s Second Law of Motion  Investigate Recap What happened as you kept pushing the different balls? How did the a change in force affect.

Newton’s Laws of Motion. 1. A. Force = 3,150,000N 2.

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:

QUICK REVIEW (MONDAY, 9/30/13) Exam #3. Review Question #1 Joe pushes a 2-kg ball with a force of 10 newtons, Sally pushes the same ball with twice the.

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

Factors that Affect a Force  While riding your bike, when would you find yourself pedaling really hard?  Some ideas: when you want to go faster, when.

Newton’s Second Law of Motion. But first, Let’s Review…. A bowling ball and a volleyball are rolling towards you. Which would be easier to stop? Explain.

What holds us together? Gravity. Gravity is a force Force: a push or pull exerted on an object Gravity: the attractive force between objects; force that.

12.3 Newton’s Third Law of Motion and Momentum 4. A 25-N force accelerates a boy in a wheelchair at 0.5 m/s2. What is the mass of the boy and the wheelchair?

Physical Science Chapter 12 Force. Ball demos Ball on table Rolling.

Newton’s 2nd Law of Motion

Prompt under the document camera

Newton’s 2nd Law Copyright2013CrazyScienceLady.

Newton’s Laws of Motion

Newton’s Second Law of Motion

Newton’s Second Law of Motion

Newton’s 3rd Law Of Motion States that for every section there is an equal and opposite reaction. By: Alleyah Crutchfield ! An Objects amount Of acceleration.

Newton’s Second Law of Motion

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

Newton’s Laws of Motion

Which one would be easier to accelerate by pushing?

acceleration = Force / mass

Notes 2.2: Newton’s 2nd Law of Motion

Newton’s Second Law of Motion

Newton’s Second Law of Motion

Newton’s Second Law How does mass affect acceleration? 2.How does mass

Newton’s 1st and 2nd Laws of Motion

Physical Science Chapter 12 Section 1

Newton’s 2nd Law of Motion

NEWTON’S 2ND LAW OF MOTION NOTES

DO NOW QUESTION Say you become an astronaut. Will you WEIGH more, less, or the same on the moon? Less Why? Because the moon has less gravity than Earth.

Newton’s Second Law Acceleration.

Unit 2 - Forces Learning Target 2.3 – Describe the relationship between Force, mass, & acceleration (newton’s 2nd law)

Acceleration and Newton’s 2nd Law

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

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,

Newton’s 1st and 2nd Laws.

Simple applications Of 1st & 2nd Laws.

Forces cause changes in motion!

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

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

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

Different Forces Suppose you are at lunch with a friend, and they ask you to pass the milk. Think of how hard you would have to push a small carton of milk to get it to your friend. Now, suppose you are at dinner with your family, and they ask you to pass the gallon of milk. Think of how much more force you would need to use to push the gallon of milk. The same force will cause an object with less mass to accelerate less.

In other words…..using the same amount of force…. Small acceleration a Large Mass Large acceleration F a Small Mass

Newton’s Second Law Newton studied how objects moved, and he noticed some patterns. The acceleration of an object depends on the mass of the object and the size of the force applied to it. Newton’s Second Law: Force = Mass x Acceleration

Units Item being measured Units Force Newton N Mass Kilograms kg Acceleration Meters/second squared m/s2

Example What force is needed to move a 10 kg object at 4 m/s2? 1st Write the equation you will be using F = M x A 2nd Fill in the equation with what you know from the problem F = 10 kg x 4 m/s2 3rd Do the Math 10 x 4 = 40 4th Write your answer with units F = 40N

Example What force is needed to move a 13 kg object at 8 m/s2? 1st Write the equation you will be using F = M x A 2nd Fill in the equation with what you know from the problem F = 13 kg x 8 m/s2 3rd Do the Math 13 x 8 = 40 4th Write your answer with units F = 104N

Other Discoveries Newton’s equation can also be manipulated to find acceleration or mass. Acceleration = force / mass Mass = force/acceleration Same units!

Examples What is the acceleration of a baseball that weighs 1.5 kg and is hit with 15 N of force. 1st Write the equation you will be using A = F/M 2nd Fill in the equation with what you know from the problem A = 15N / 1.5kg 3rd Do the Math 15/1.5 = 10 4th Write your answer with units A = 10 m/s2

You Try! 1. F= ? M= 17 kg A= 7 m/s2 2. F= 5N M= 8 kg A= ? 3. F= 10 N M= ? A= 17 m/s2 4. F= ? M= 65 kg A = 100 m/s2

What are the proper units for acceleration? A. N B. Kg C. m/s2 D. m/s3

What are the proper units for force? A. N B. Kg C. m/s2 D. m/s3

What are the proper units for mass? A. N B. Kg C. m/s2 D. m/s3

If you apply the same force to a bowling ball and a tennis ball, which one will accelerate faster? B. Bowling Ball