8 th Science-Force and Newton’s Laws. Newton’s First Law Also known as the Law of Inertia States...

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8 th Science- Force and Newton’s Laws

Transcript of 8 th Science-Force and Newton’s Laws. Newton’s First Law Also known as the Law of Inertia States...

Page 1: 8 th Science-Force and Newton’s Laws. Newton’s First Law Also known as the Law of Inertia States that an object in motion stays in motion and an object.

8th Science-Force and Newton’s Laws

Page 2: 8 th Science-Force and Newton’s Laws. Newton’s First Law Also known as the Law of Inertia States that an object in motion stays in motion and an object.

Newton’s First Law

Also known as the Law of Inertia States that an object in motion stays in

motion and an object at rest remains at rest unless acted on by an unbalanced outside force

Page 3: 8 th Science-Force and Newton’s Laws. Newton’s First Law Also known as the Law of Inertia States that an object in motion stays in motion and an object.

Newton’s First Law

Inertia: a property of matter that describes the tendency of an object to resist changes in its state of motion

(The more mass an object has, the greater its inertia)

(ex: 18 wheeler vs. compact car), seatbelts,

Page 4: 8 th Science-Force and Newton’s Laws. Newton’s First Law Also known as the Law of Inertia States that an object in motion stays in motion and an object.

Section 1: Newton’s Second Law

For any object, the greater the force that’s applied, the greater its acceleration will be

Relates the net force on an object (F) to the object’s mass (m) and acceleration (a)

Force, mass and acceleration are connected

Page 5: 8 th Science-Force and Newton’s Laws. Newton’s First Law Also known as the Law of Inertia States that an object in motion stays in motion and an object.

Friction

Objects slow to a stop when moving freely—due to friction

The force that opposes motion between two surfaces that are touching ea/other

Amt. of friction depends on kinds of surfaces and the force pressing the surfaces together

Page 6: 8 th Science-Force and Newton’s Laws. Newton’s First Law Also known as the Law of Inertia States that an object in motion stays in motion and an object.

Types of Friction:

Static Friction: friction between two surfaces that are not moving past ea/other

Sliding friction: force that opposes the motion of two surfaces sliding past ea/other

Rolling friction: friction between a rolling object and the surface it rolls on

Page 7: 8 th Science-Force and Newton’s Laws. Newton’s First Law Also known as the Law of Inertia States that an object in motion stays in motion and an object.

Air Resistance:

The force on an object opposite the force of gravity when an object falls toward Earth

Effects anything that moves in Earth’s atmosphere

The amount of air resistance on an object depends on the speed, size and shape of the object

Page 8: 8 th Science-Force and Newton’s Laws. Newton’s First Law Also known as the Law of Inertia States that an object in motion stays in motion and an object.

Section 3: Newton’s Third Law

Describes action/reaction pairs When one object exerts a force on a

second object, the second one exerts a force on the first that is equal in size and opposite in direction

OR: “to every action force there is an equal opposite reaction force”

Page 9: 8 th Science-Force and Newton’s Laws. Newton’s First Law Also known as the Law of Inertia States that an object in motion stays in motion and an object.

Remember:

Action/Reaction forces are acting on different objects

Even though forces are equal, they are not balanced

Page 10: 8 th Science-Force and Newton’s Laws. Newton’s First Law Also known as the Law of Inertia States that an object in motion stays in motion and an object.

Rocket Propulsion

Rockets use the principle that as the rocket exerts force on gases and causes them to escape out the back of the rocket, the gases exert an opposite but equal force on the rocket propelling it forward

Also: stepping out of a canoe example


Motion,Momentum,& Centripetal Force. Newton’s Laws of Motion 1 st Law: An object in motion remains in motion & an object at rest remains at rest unless.

Motion,Momentum,& Centripetal Force. Newton’s Laws of Motion 1 st Law: An object in motion remains in motion & an object at rest remains at rest unless.

Newton’s Laws of Motion - MR. MCQUEARY'S PHYSICS · 2019. 11. 11. · Newton’s Laws of Motion 1. An object in motion tends to stay in motion and an object at rest tends to stay

Newton’s Laws of Motion - MR. MCQUEARY'S PHYSICS · 2019. 11. 11. · Newton’s Laws of Motion 1. An object in motion tends to stay in motion and an object at rest tends to stay

Unit 2 Section 4 Notes Newton’s Laws of Motion. Newton’s First Law: An object at rest stays at rest and an object in motion stays in motion unless acted.

Unit 2 Section 4 Notes Newton’s Laws of Motion. Newton’s First Law: An object at rest stays at rest and an object in motion stays in motion unless acted.

Newton’s first law of motion states that the motion of an object changes only if an unbalanced force acts on the object. Newton’s second law of motion.

Newton’s first law of motion states that the motion of an object changes only if an unbalanced force acts on the object. Newton’s second law of motion.

R Dynamics: Newton’s Laws of Motion - Pearson Global …assets.pearsonglobalschools.com/asset_mgr/current/201315/gian_pp7... · Newton’s Laws of Motion 75 4 ... heavy object with

R Dynamics: Newton’s Laws of Motion - Pearson Global …assets.pearsonglobalschools.com/asset_mgr/current/201315/gian_pp7... · Newton’s Laws of Motion 75 4 ... heavy object with

Chapter 3 Lesson 2. Newton’s Second Law Newton’s Second Law Newton’s Second Law of Motion The acceleration of an object is directly proportional to the.

Chapter 3 Lesson 2. Newton’s Second Law Newton’s Second Law Newton’s Second Law of Motion The acceleration of an object is directly proportional to the.

Newton’s Laws of Motion Newton’s 1 st Law of Motion An object in motion tends to stay in motion and an object at rest tends to stay at rest, unless the.

Newton’s Laws of Motion Newton’s 1 st Law of Motion An object in motion tends to stay in motion and an object at rest tends to stay at rest, unless the.

Newton’s Second Law of Motion Newton’s Second Law of Motion.

Newton’s Second Law of Motion Newton’s Second Law of Motion.

Newton’s Laws of Motion - Coach Hyde 2016-2017 · Newton’s Laws of Motion 1st Law – An object at rest will stay at rest, and an object in motion will stay in motion at constant

Newton’s Laws of Motion - Coach Hyde 2016-2017 · Newton’s Laws of Motion 1st Law – An object at rest will stay at rest, and an object in motion will stay in motion at constant

Newton’s 1 st Law of Motion. Newton’s 1 st Law Newton’s 1 st Law: An object at rest stays at rest and an object in motion stays in motion, unless acted.

Newton’s 1 st Law of Motion. Newton’s 1 st Law Newton’s 1 st Law: An object at rest stays at rest and an object in motion stays in motion, unless acted.

CHAPTER 4 The Laws of Motion Newton’s First Law: Newton’s First Law: An object at rest remains at rest and an object in motion continues in motion with.

CHAPTER 4 The Laws of Motion Newton’s First Law: Newton’s First Law: An object at rest remains at rest and an object in motion continues in motion with.

Newton’s Laws of Motion. Newton’s Laws of Motion 1. An object in motion tends to stay in motion and an object at rest tends to stay at rest unless acted.

Newton’s Laws of Motion. Newton’s Laws of Motion 1. An object in motion tends to stay in motion and an object at rest tends to stay at rest unless acted.

Section 3 Newton’s Laws of Motion - Midway Middle School ...midwaymsscience.weebly.com/uploads/8/2/9/8/8298729/... · Newton’s second law describes the motion of an object when

Section 3 Newton’s Laws of Motion - Midway Middle School ...midwaymsscience.weebly.com/uploads/8/2/9/8/8298729/... · Newton’s second law describes the motion of an object when

Chapter 2 Section 2 Newton’s Laws of Motion · Chapter menu Resources Newton’s First Law of Motion An object at rest remains at rest, and an object in motion remains in motion

Chapter 2 Section 2 Newton’s Laws of Motion · Chapter menu Resources Newton’s First Law of Motion An object at rest remains at rest, and an object in motion remains in motion

Force & Motion Newton’s Laws of Motion. Motion Motion An object is in motion if the object changes position relative to a reference point.

Force & Motion Newton’s Laws of Motion. Motion Motion An object is in motion if the object changes position relative to a reference point.

Newton’s Laws of Motion. An object at rest remains at rest, and an object in motion continues in motion with constant velocity unless the object experiences.

Newton’s Laws of Motion. An object at rest remains at rest, and an object in motion continues in motion with constant velocity unless the object experiences.

NEWTON’S LAWS OF MOTION - University of Houstonnsmn1.uh.edu/cratti/PHY1301-Spring2015_files/Ch5_Claudia.pdfNEWTON’S LAWS OF MOTION ... force, an object will ... • Newton’s

NEWTON’S LAWS OF MOTION - University of Houstonnsmn1.uh.edu/cratti/PHY1301-Spring2015_files/Ch5_Claudia.pdfNEWTON’S LAWS OF MOTION ... force, an object will ... • Newton’s

Newton’s First Law of Motion Newton’s first law is often called the law of inertia Newton’s First Law of Motion states—An object at rest will remain.

Newton’s First Law of Motion Newton’s first law is often called the law of inertia Newton’s First Law of Motion states—An object at rest will remain.

Review Slide. Newton’s Second Law Newton’s Second Law Newton’s Second Law of Motion The acceleration of an object is directly proportional to the net.

Review Slide. Newton’s Second Law Newton’s Second Law Newton’s Second Law of Motion The acceleration of an object is directly proportional to the net.

Newton’s Third Law of Motion · Action - Reaction • Newton’s first two laws of motion explain how the motion of a single object changes. •Newton’s third law describes something

Newton’s Third Law of Motion · Action - Reaction • Newton’s first two laws of motion explain how the motion of a single object changes. •Newton’s third law describes something