Three Laws of Motion

Three Laws of Motion
An overview of Newton’s Three Laws of Motion Click To Continue

How It Works Menu: Buttons in menu take you where the button says Example: - This button would take you to the First Law section, and will be the same for the Second and Third Laws - This button would take you directly to the quiz First Law Quiz Click To Continue

Navigation Buttons - This button takes you to the previous page - This button takes you to the next page - This button takes you directly to the Menu Menu Click To Continue

What Is Taught Through these lessons you will: - Learn the basics behind physics - Learn Newton’s Three Laws of Motion - Be able to apply the laws to real life situations

What Would You Like To Do First Law Second Law Third Law Quiz

Newton’s First Law Menu

First Law Newton’s First Law of Motion: Everybody in a state of uniform motion tends to remain in that state of motion unless an external force is applied to it Menu

First Law Uniform Motion: This can be either moving at a constant velocity or at rest Box is moving at a constant 4 m/s, so it is moving at a Constant velocity Menu

First Law External Force: Anything that changes the motion of an object Applied to the outside of an object The stick hits the ball. The stick exerts the external force on the ball. Menu

First Law This law is really important because it describes the way that all objects act Knowing how objects move is important to understand the world around us Menu

First Law Example: Constant Velocity: At Rest: External Force: 1 s 1 s 1 s 1 ft 1 ft 1 ft Menu

First Law Fun Fact First Law is also called “Law of Inertia” Menu

Newton’s Second Law Menu

Second Law Newton’s Second Law: The relationship between an object’s mass (m), it’s acceleration (a), and the applied force (F) is F=m*a Menu

Second Law Both F and a are vectors - F ∼ arrow over symbol indicates vector - F ∼ italics indicate vector Both vectors are in the same direction Menu

Second Law Vector: A vector has both direction and magnitude Vectors move in one direction Vectors have a distinct magnitude Menu

Second Law This law is the foundation of physics Everything that is done in relates to this law Best known law Menu

Second Law Units used in law: There are basic units that are used for this equation F = Newton (N) = (kg*m)/s2 m= kilograms (kg) a = meters per second (m/s2) Menu

Second Law Example: Force = 10 N, mass = 5 kg 10=5*a a=10/5 a=2 m/s2 mass = 10 kg, acceleration = 2 m/s2 F=10*2 F=20 N Examples of vectors, Length represents the magnitude, and the direction that the arrow points indicates direction of the vector. Menu

Newton’sThird Law Menu

Third Law Newton’s Third Law: For every action there is an equal and opposite reaction Menu

Third Law What this law is saying: This law is saying that if one object applies a force onto a second object, then the second object will apply a force of equal magnitude to the first object Menu

Third Law This is an important law because it describes how multiple objects react with each other Before After Menu

Third Law Example: When you jump off a boat you go forward and the boat goes backwards with the same force applied to the person and boat F F Menu

What You Have Learned Definitions of the three laws What the definitions are saying Examples of how the laws apply to situations Basics of physics using the laws Menu

Review Questions Menu

Review Question 1: F = m*a First Law Second Law Third Law

Review Correct! Second Law Next Question

Review Sorry This was the Second Law F=ma is the premise of the second law F is the force m is the mass a is the acceleration Next Question

Review Question 2: For every action there is an equal and opposite reaction First Law Second Law Third Law

Review Correct! ThirdLaw Next Question

Review Sorry This was the third law Whenever an object applies a force to another object, the other object applies an equal force back Next Question

Review Question 3: An object prefers to be in constant uniform motion First Law Second Law Third Law

Review Correct! FirstLaw Menu Quiz

Review Sorry This was the first law An object will either stay at rest or constant velocity unless an external force is applied to it Menu Quiz

Three Laws of Motion Quiz Menu Begin

Quiz How It Works First read the question completely Next click on the law that you think it is If you are correct click the button that says Next Question If wrong click on Review read the review and continue by clicking on Next Question Continue

Quiz Question 1: Two balls collide and apply equal forces to each other First Law Second Law Third Law

Quiz Correct! Third Law Next Question

Quiz Sorry Correct Answer: Third Law Review

Quiz Review Third Law because this shows two bodies interacting with each other Next Question

Quiz Question 2: A box slides at constant velocity First Law Second Law Third Law

Quiz Correct! First Law Next Question

Quiz Sorry Correct Answer: First Law Review

Quiz Review First Law because this example shows an object at rest Next Question

Quiz Question 3: F = m*a First Law Second Law Third Law

Quiz Correct! Second Law Next Question

Quiz Sorry Correct Answer: Second Law Review

Quiz Review Second Law because this is the equation used to describe force Next Question

Quiz Question 4: A ball stays at rest on the floor, then accelerates after a force is applied First Law Second Law Third Law

Quiz Review First Law because this represents uniform motion Next Question

Quiz Question 5: Force and acceleration are vectors First Law Second Law Third Law

Quiz Review Second Law because these are the two vectors used in F = m*a Next Question

Quiz Question 6: A box slides on the ground and the ground exerts a normal force on the box and the box exerts an equal force back First Law Second Law Third Law

Quiz Review Third Law because this is an example of equal and opposite forces Next Question

Quiz Question 7 The relationship between mass and acceleration First Law Second Law Third Law

Quiz Review Second Law because F = m*a So, force equals mass times acceleration Next Question

Quiz Question 8 Two same size balls roll and bounce off of each other equally First Law Second Law Third Law

Quiz Review Third Law because this is showing equal and opposite reactions Next Question

Quiz Question 9 A train is coasting along the tracks at 40m/s First Law Second Law Third Law

Quiz Review First Law because this shows the train moving at a constant velocity Constant velocity is uniform motion Next Question

Quiz Question 10 Two people high five each other. Both people feel a force against their hands First Law Second Law Third Law

Quiz Correct! Third Law Continue

Quiz Review Third Law because it shows an equal force applied to both hands in opposite directions Continue

If you got 7 or more correct If you missed or than 3 Click Here Click Here

What You Have Learned Definitions of the three laws What the definitions are saying Examples of how the laws apply to situations Basics of physics using the laws Continue

References Serway, R. A. (1996). Physics for Scientists and Engineers (4th ed.). Philadelphia, PA: Saunders College Publishing. Continue

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Three Laws of Motion