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Forces and Motion
Main Injector, 2 miles around Tevatron, 4 miles around Fermilab
Physics explains things that are very, very large.
Physics explains things that are very, very small.
Physics explains things that are right in front of us.
Newton’s First Law Objects at rest remain at rest Objects in motion remain in motion UNTIL YOU APPLY A FORCE
Objects tend to resist a change in motion. This is called: Inertia
Newton’s Second Law F = ma What is a force?
Weight due to gravity (down) Amount of weight keeping board on ramp Amount of weight making board move down ramp Although weight doesn’t change, the amount making the skateboard move does
Boards hit bottom at same time
Weight (force) goes up, but so does mass (inertia). The two cancel out, so the two skateboards move at the same rate.
What do we expect to see with rings of the same size ? Rods roll faster than rings
Rings of the same size move at the same rate Rods roll faster than rings
Do the shapes matter? Rods roll faster than rings
Rings of the same size move at the same rate Rods roll faster than rings In rolling cases, mass doesn’t matter. Shape does.
Newton’s Third Law For every action there is an equal and opposite reaction.
Conservation of Momentum If m 1 = m 2, then v 1 = v 2
Conservation of Energy Potential Energy Kinetic Energy Compression Energy Heat and Sound Energy
Spins in Figure Skating
Objects with weight far from the rotation axis spin more slowly than ones that are compact.
Things to Remember Inertia –Moving things stay moving, stationary things stay stationary All objects moved by gravity accelerate the same Rotating objects act funny Some things don’t change and that’s very useful.
The 3 laws of Motion What is motion anyway? Motion is a change in position, measured by distance and time.
The Physics of Sports Main Injector, 2 miles around Tevatron, 4 miles around Fermilab.
Force and Motion 1. What is Physics? Study of the nature of the Universe – what the Universe is made of – Matter – stars and planets and galaxies – different.
Force : Push or pull Newton: unit to measure force Net force: combination of force Unbalance force: object start moving Balance force: object doesn`t move.
The Physics of Sports. Main Injector, 2 miles around Tevatron, 4 miles around Fermilab.
How can we describe how objects move?. The law of BALANCED FORCES Objects at rest tend to stay at rest. Objects in motion tend to stay in motion.
FORCE. A FORCE IS A PUSH OR A PULL. IF FORCES ARE POWERFUL ENOUGH, THEY MAY RESULT IN MOTION. What is a force?
Force and Motion 1. 2 Fermilab 3 4 Physics explains lots of Everyday Stuff too.
Newton’s First Law Notes TEKS 8.6C Investigate an describe applications of Newton’s law of inertia.
The Physics of Sports Geneva Middle School 25 February 2010.
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Forces. I. Section 1 A. Newton- (N) the SI unit for the magnitude of a force. Also called weight. B. Force- a push or a pull. Described by its magnitude.
Developed the concepts of both gravity and motion Laid the foundation for modern science Developed the 3 Laws of Motion.
Newton’s Laws of Motion. Newton’s First Law The Law of Inertia Inertia- the tendency of an object to resist a change in motion. An object at rest.
Newton’s Third Law of Motion. Action and Reaction Newton’s Third Law of Motion- –For every action there is an equal and opposite reaction. –If one object.
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Force and Motion Vocabulary Week 3. CCGPS S8P5a. Recognize that every object exerts gravitational force on every other object and that the force exerted.
Dr. Michael Cooke Dr. David Schmitz Fermilab. Newton’s Laws of Motion o o 1. Objects in motion want to stay in motion and objects at rest want to stay.
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Describe Speed A way to describe motion –Average speed - Rate of motion calculated by dividing the distance traveled by the amount of time it takes to.
Newton’s Laws of Motion Sir Isaac Newton ( )
Newton’s Laws of motion. Force -Force is anything that changes the state of rest or motion of an object. Force -Force is anything that changes the state.
Forces and Motion Unit Vocabulary. Newton’s 1 st law Law states: An object at rest stays at rest. An object in motion stays in motion unless an unbalanced.
Describing Motion Newton’s Laws. First we need to define the word FORCE: A push or a pull exerted on an object in order to change the motion of the object.
Force and Newton Word Wall. Balanced Force The forces are balanced when the forces acting on an object are equal.
Motion and Energy Motion- An object is in Motion when __________________________ __________________________ __________________________ __________________________.
Newton’s Laws of Motion Chapter 6. Newton’s Laws of Motion “Law of inertia” First Law of Motion INERTIA - tendency of an object to resist a change in.
Newtons Laws of Motion Forces. Newtons First Law of Motion What happens to a ball rolling along the ground? What happens to a ball rolling along the ground?
Chapter 12: Forces and Motion Section 12.3 Newton’s Third Law of Motion and Momentum Section 12.3 Newton’s Third Law of Motion and Momentum.
Newton’s Laws of Motion 1 st - Inertia. 2 nd - F = ma 3 rd - Action/Reaction Take notes when see.
Newton’s Laws of Motion. Galileo’s Inertia After watching Jupiter’s Moons Galileo became convinced that objects had a tendency to keep whatever state.
Forces and Newton’s Laws Houston, We Have a Problem! Lesson.
8.6C NEWTON’S LAWS You will be taking notes and then completing 3 questions before you leave. Split your paper into thirds. Number each third 1, 2, and.
CHAPTER 3. Newton’s Second Law of Motion F = m × a Force = mass × acceleration The faster you run into a wall, the more force you exert on that wall Units.
Force and Motion Review. push A force is simply a push or a pull. All forces have both size and direction.
Newton’s Laws. 1. What is Newton’s 1 st Law of Motion? An object at rest will remain at rest and an object in motion will remain in motion unless acted.
Chapter 2 – sections 1, 2, and 3 vocabulary 1.Force – a push or a pull exerted on an object 2.Unbalance force – a nonzero net force, which changes an object’s.
Kinetic or Potential 5 Forms of Energy Math and Formulas.
Chapter 15 – section 4. First Law of Motion Also called the “Law of Inertia” Inertia – the tendency of an object to stay at rest or remain in motion.
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Force, Mass and Momentum. Newton’s Second Law: F = ma 1 newton = 1 kg ∙ 1 m/s² Force: 1 pound = 4.45 newtons Your weight is the force of gravity: F =
Sir Isaac Newton ( ) an English scientist and mathematician famous for his discovery of the law of gravity also discovered the three laws of motion.
Newton’s Laws of Motion. The First Law of Motion Objects at rest will stay at rest and objects moving at a constant velocity will continue moving at a.
The Nature of Force Newton’s Laws. What is a Force? A force is a push or a pull. When one object pushes or pulls another object, you say that the first.
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