1© Manhattan Press (H.K.) Ltd. Describing a force Nature of force Nature of force 1.1 Force.

Slides:

Advertisements

Similar presentations

Copyright © by Holt, Rinehart and Winston. All rights reserved. ResourcesChapter menu Four Fundamental Forces in Nature Force – a _____ or _____ SI unit.

Advertisements

Universal Forces Chapter Electromagnetic Forces Electric Forces Magnetic Forces They are the only forces that can both attract and repel.

» In nature, there are two general types of forces: » » 1. Fundamental forces » 2. Non-fundamental forces.

The Fundamental Forces of Nature 3U Physics. The 4 Forces The 4 fundamental forces of nature are how the fundamental particles of the universe interact.

Introduction and Forces in Nature

5. The Laws of Motion 5.1 The Concept of Force5.2 Newton’s First Law and Inertial Frames5.3 Mass5.4 Newton’s Second Law5.5 The Force of Gravity and Weight5.6.

1© Manhattan Press (H.K.) Ltd. Weight Normal reaction Normal reaction 1.2 Different types of forces Tension Tension Elastic force Elastic force Friction.

Chapter 4 The Laws of Motion. Classical Mechanics Describes the relationship between the motion of objects in our everyday world and the forces acting.

Classical Mechanics Describes the relationship between the motion of objects in our everyday world and the forces acting on them Conditions when Classical.

Chapter 5 More Applications of Newton’s Laws. Forces of Friction When an object is in motion on a surface or through a viscous medium, there will be a.

EVERY-DAY FORCES Force of gravity Normal force Force of friction Universal force of gravity.

Relative Velocity Two observers moving relative to each other generally do not agree on the outcome of an experiment However, the observations seen by.

Forces Force – any push or pull acting on an object

6.3 Gravitational potential energy and gravitational potential

Chapter 4 The Laws of Motion. Classical Mechanics Describes the relationship between the motion of objects in our everyday world and the forces acting.

Newton’s 1 st Law. Newton’s First Law of Motion Objects in motion will to stay in motion, objects at rest will stay at rest unless they are acted upon.

C H A P T E R 4 Forces and Newton's Laws of Motion

S-24 Define the following terms A. Weight B. Gravity C. Friction

Forces and Newton’s Laws. Forces Forces are ________ (magnitude and direction) Contact forces result from ________ ________ Field forces act ___ __ __________.

Forces and Motion Chapter 2 – Gravity, Motion, and Light.

Unit 1 B Newton's Laws of Motion. 2 Classical Mechanics Describes the relationship between the motion of objects in our everyday world and the forces.

ISAAC NEWTON’S PHYSICS PRINCIPLES. WHAT NEWTON DID When it comes to science, Isaac Newton is most famous for his creation of the THREE LAWS OF MOTION.

More Applications of Newton’s Laws

1 Chapter 4 The Laws of Motion. 2 Force Force is associated with the change in the stat of motion of an object. Force is required to make an object move.

Motion and Forces (p ). Motion describes how objects travel in space and time The main variables in the description of motion are: –Speed (velocity)

All About Forces h?v=HK8afQRrOck.

 Define the following terms  A. Weight  B. Gravity  C. Friction S-33 I can explain the relationship between weight, gravity, and friction.

6.2 Gravitational field and gravitational field strength

1© Manhattan Press (H.K.) Ltd. 1.7 Stability 2 © Manhattan Press (H.K.) Ltd. Stability 1.7 Stability (SB p. 75) What makes objects more stable than others?

A push or a pull on an object is called a force.

Section 4 Universal Forces.

Unit 2 - Forces. In this unit, you will be able to: 1.Define and describe concepts related to force – i.e. types of forces 2.State and apply Newton’s.

Fundamental Forces in Nature

4.1 Gravitational Force Near Earth

1© Manhattan Press (H.K.) Ltd. Inertial mass and its measurement Gravitational mass Gravitational mass 3.4 Inertial mass and gravitational mass.

Fundamental Forces. Gravitational force - an attractive force that exists between all objects. The gravitational force between the center of the Earth.

C H A P T E R 4 Forces and Newton's Laws of Motion

September 18 Pick up a worksheet. Get four different colored Pencils. Goal: Describe how the four fundamental forces impact Earth Systems.

FORCES Chapter 5. Mechanics The study of Motion Isaac Newton, 1600’s The father of mechanics.

Forces Net force ∑F is sometimes known as total force, resultant force or unbalanced force.

Unit 13: Particle Physics Four fundamental interactions in nature 1.Strong – responsible for binding neutrons and protons into nuclei 2.Electromagnetic.

4.2 Gravity. Objectives Describe the gravitational force. Describe the gravitational force. Express the dependence of gravitational field on mass and.

Concept of a Force. What is a Force? Usually think of a force as a push or pull. A force can deform, stretch, rotate, or compress a body. It makes an.

STARTER DIRECTIONS: WHAT IS HAPPENING IN THE PICTURE. WHAT CONCEPT DO YOU THINK THIS SCENARIO IS?

1© Manhattan Press (H.K.) Ltd. 6.4 Escape speed 2 © Manhattan Press (H.K.) Ltd. Escape speed 6.4 Escape speed (SB p. 224) Go to More to Know 18 More.

Forces. Push or pull between TWO masses Forces Push or pull between TWO masses Measured in Newtons (N) –What is a Newton?

Chapter 4 Forces in One Dimension. Classical Mechanics Describes the relationship between the motion of objects in our everyday world and the forces acting.

Unit 2 - Forces.

Gravitational Force and Weight

A push or a pull on an object is called a force.

A Closer Look at Forces How do forces affect us?.

Forces An Introduction.

Gravity and Motion Ms. Mudd 6th Astronomy.

Universal Forces Chapter 12-4 pg

Motion & Force.

3.4 Motion and Forces (p.79-92) Write this title 

Star Forces: Question of the day!

Chapter 4 Newton’s Laws.

Universal Forces 12.4 Notes.

Force Review and Universal Law of Gravitation

Introduction to Forces

The Laws of Motion (not including Atwood)

FORCES AN ACTION (PUSH OR PULL) THAT CAN CAUSE CHANGE IN SHAPE, SIZE OR MOTION.

Chapter 12 Review Albert’s group.

Fundamental Forces.

Forces & Newton’s Laws of Motion

Warm UP What is the difference between mass and weight?

Forces Physics- Ms. Jeffrey.

Presentation transcript:

1© Manhattan Press (H.K.) Ltd. Describing a force Nature of force Nature of force 1.1 Force

2 © Manhattan Press (H.K.) Ltd. Statics 1.1 Force (SB p. 38) MechanicsStudy StaticsBodies at rest KinematicsBodies in motion without concerning the cause of motion DynamicsRelationship between motion and the forces that cause it

3 © Manhattan Press (H.K.) Ltd. Force A. Describing a force 1.1 Force (SB p. 39) Force – vector Unit – newton (N)

4 © Manhattan Press (H.K.) Ltd. Force A. Describing a force 1.1 Force (SB p. 39) A force is described by specifying: (a) its magnitude and direction, (b) the body on which it acts, and which part of the body it acts, (c) the body that exerts the force, and (d) the nature of force.

5 © Manhattan Press (H.K.) Ltd. Force A. Describing a force 1.1 Force (SB p. 39) e.g. weight = 600 N a 600 N pointing towards the earth’s centre acted on the man by the earth gravitational force

6 © Manhattan Press (H.K.) Ltd. Nature of force Four types of forces in nature 1.1 Force (SB p. 39) ForcePropertyRelative strength Gravitational force (F g ) 1. Long- range attractive force exists among massive particles in the Universe 2. It is very small, but it is not negligible if at least one of the bodies is massive. 1 Go to More to Know 1 More to Know 1

7 © Manhattan Press (H.K.) Ltd. Nature of force Four types of forces in nature 1.1 Force (SB p. 39) ForcePropertyRelative strength Electromagnetic force (F e ) Long-range attractive (or repulsive) force exists among charged particles Go to More to Know 2 More to Know 2

8 © Manhattan Press (H.K.) Ltd. Nature of force Four types of forces in nature 1.1 Force (SB p. 39) ForcePropertyRelative strength Weak nuclear force Short-range attractive force exists among sub-atomic particles Strong nuclear force Short-range attractive force exists among nucleons Go to More to Know 3 More to Know 3

9 © Manhattan Press (H.K.) Ltd. End

10 © Manhattan Press (H.K.) Ltd. Different gravitational forces The gravitational forces for the same mass on different planets are different. Do you know that what is your weight on the moon? It is 1/6 that on the earth. Return to Text 1.1 Force (SB p. 39)

11 © Manhattan Press (H.K.) Ltd. Electromagnetic force Most forces that we come across in daily life such as friction and tension are actually examples of electromagnetic force. Return to Text 1.1 Force (SB p. 39)

12 © Manhattan Press (H.K.) Ltd. Weak nuclear force Weak nuclear force takes part in the radioactive decay of atoms. Return to Text 1.1 Force (SB p. 39)