NEWTON’S LAWS OF

MOTION (BASIC)

Educational Technology 1 (EDUC126)

Andre Gere Q. Adsuara

BSE21

LEARNING OBJECTIVES

Get to know about Isaac Newton.

State and explain Newton’s Law of Motion.

Apply the laws of Newton to simple situations.

LESSON PROPER

Definition of Force and Motion (Review)

Isaac Newton’s Quick Biography

Newton’s Laws of Motion

Problem Solving Skills

FORCE

It is any interaction which

tends to change the motion

of an object.

MOTION

One of the most common physical

phenomena.

A change in position of an object

with respect has a fixed reference

point.

It is a relative.

ISAAC

NEWTON

• English physicist, mathematician, and natural

philosopher.

• One of the foremost scientific intellects of all

time.

• His works are Universal Law of Gravitation

and the Law of Motion.

• He invented calculus and reorganized the

study of physical phenomena.

• His published works are Principia (1687) and

Optiks (1704).

NEWTON’S LAW

OF MOTION1. Law of Inertia

- Definition of Inertia

2. Law of Acceleration

- Calculating for the 2nd Law and

examples

3. Law of Interaction

Contents

NEWTON’S LAW OF MOTION

These are three physical laws that together laid the

foundation for classical mechanics. They describe the

relationship between a body and the forces acting

upon it, and its motion in response to said forces.

LAW OF INERTIA

An object at rest tends to stay at rest, and an

object in motion tends to stay in motion with

the same speed and in the same direction

unless acted upon by an outside force.

INERTIA

It is the resistance of any physical object to any

change in its state of motion, including changes to its

speed and direction. It is the tendency of objects to

keep moving in a straight line at constant velocity.

LAW OF ACCELERATION

An object will only accelerate if there is a net

or unbalanced force acting upon it.

The presence of an unbalanced force will

accelerate an object changing its speed or

its direction or vice-versa.

CALCULATION FOR THE 2ND LAW

When you multiply a kilogram (mass unit) times a meter per second

squared (acceleration unit) you get a kilogram-meter per second

squared.

So a unit for force is actually the kilogram-meter per second squared.

However, no one really says that. The unit for force is named after

Isaac Newton, and it is called the 'Newton', abbreviated 'N'.

1 N = 1 kg-m/s2

Equation: F = MA

EXAMPLE ABOUT ACCELERATION

An object has a mass of 11.87 kg and an acceleration

of 11.11 m/s/s. What is the force on the object?

Answer: 131.87 N

LAW OF INTERACTION

For every action, there is an equal and

opposite reaction.

TEST YOURSELF

1. If a person is standing on the floor of a bus at rest, and the bus

suddenly starts to move forward, the person is “thrown” backward.

2. A tennis player applies a contact force to ball with her racket,

accelerating and directing the ball toward the open court.

3. Many people are familiar with the fact that a rifle recoils when fired.

PROBLEM SOLVING SKILLS

o An object with a mass of 17.21 kg experiences a force

of 13.44 N. What is the acceleration of the object?

Note: A = F/M

o An object with a force of 17.93 N on it is accelerating

at 12.85 m/s/s. What is the mass of the object?

Note: M = F/A

REFERENCES

http://www.physicsclassroom.com/class/newtlaws/Lesson-1/Newton-s-First-Law

http://www.physicsclassroom.com/class/newtlaws/Lesson-3/Newton-s-Second-Law

http://www.physicsclassroom.com/class/newtlaws/Lesson-4/Newton-s-Third-Law

http://en.wikipedia.org/wiki/Newton's_laws_of_motion

http://zonalandeducation.com/mstm/physics/mechanics/forces/newton/mightyFEqMA/

mightyFEqMA.html

More games, visit http://www.sciencechannel.com/games-and-interactives/newtons-

laws-of-motion-interactive.htm

THANK YOU AND GOD BLESS!!!