Newton2ndnotes
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Newton's 2nd law of motion states that an object will accelerate in the direction of an applied force. Gravity is a force that causes objects to accelerate towards Earth at 9.8 m/s^2. Newton's 3rd law states that for every action force, there is an equal and opposite reaction force - when one object exerts a force on a second object, the second object exerts an equal force back on the first. Centripetal force and the horizontal motion of satellites allows them to orbit planets in curved paths, while air resistance opposes the downward force of gravity on falling objects.
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Newton’s First Law
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Newton's first law of motion explains the relation between the force applied on an object and its motion.
The law states that:
An object continues to remain in a state of rest or of uniform motion in a straight line unless compelled by an external force to act otherwise.
This means that an object prefers to remain in a state of rest or uniform motion; in order to change the state it's in you need to apply force to it. Further, an object will always resist the force applied to it. The property of an object to resist an external force is called inertia, and for this reason, Newton's first law is called the law of inertia.
If you slide an object on a smooth floor with a given speed, the distance it moves depends upon the friction between the object and the floor. The smoother the floor, the greater the distance traveled by the object. The object eventually stops because of the external force of friction.
A force is required to change the velocity of a body. To understand this statement first recall from your study of kinematics that velocity is a vector with a magnitude (speed) and a direction. In the absence of a force, both speed and direction are constant. When a force acts on an object, it changes the speed, direction, or both of the objects.
There is no basic difference between an object at rest and an object in uniform motion; rest and uniform motion are relative terms. An object at rest with respec.
Newton’s Laws Of Motion
Isaac Newton discovered three laws of motion that explain how forces affect the motion of objects:
1. Newton's First Law states that an object at rest stays at rest and an object in motion stays in motion with the same speed and in the same direction unless acted upon by an unbalanced force.
2. Newton's Second Law states that the acceleration of an object as produced by a net force is directly proportional to the magnitude of the net force, in the same direction as the net force, and inversely proportional to the object's mass.
3. Newton's Third Law states that for every action, there is an equal and opposite reaction: the forces of two objects on each other are equal in magnitude
Newton's Laws
The document discusses Newton's three laws of motion:
1) An object at rest stays at rest and an object in motion stays in motion unless acted upon by an unbalanced force.
2) The acceleration of an object as produced by a net force is directly proportional to the magnitude of the net force.
3) For every action, there is an equal and opposite reaction.
Forces and Motion ppt pdf.pdf
1. The document discusses concepts related to gravity, motion, and momentum including how gravity causes all objects to accelerate at the same rate, how air resistance and terminal velocity affect falling objects, Newton's laws of motion, and the conservation of momentum during collisions.
2. Key points covered include that gravity causes acceleration independent of mass, air resistance increases with speed until equaling gravity, and Newton's laws state that an object remains in motion unless acted on by an external force along with equal and opposite reaction forces.
3. The conservation of momentum is explained as the total momentum remaining the same during collisions, with the momentum transferring between objects and causing them to move in different directions at different speeds post-collision.
1.5 form 4 a_forces
Forces are vector quantities that can cause motion or changes in motion. Newton's three laws of motion describe how forces work: 1) Objects in motion stay in motion unless acted upon by an external force, 2) Force equals mass times acceleration, 3) For every action there is an equal and opposite reaction. Other key forces include gravitational force, which follows the equation weight=mass×gravity, and the centripetal force needed for circular motion. Hooke's law states that the extension of a spring is proportional to the applied load.
Newtons laws
Newton's three laws of motion are summarized as follows:
1) An object at rest stays at rest and an object in motion stays in motion with the same speed and in the same direction unless acted upon by an unbalanced force.
2) The acceleration of an object as produced by a net force is directly proportional to the magnitude of the net force, in the same direction as the net force, and inversely proportional to the mass of the object.
3) For every action, there is an equal and opposite reaction.
Newtons laws
This document summarizes Newton's laws of motion. It describes Isaac Newton and his discoveries of the laws of motion, planetary orbits, and calculus. The three laws of motion are explained - Newton's first law of inertia, second law relating force and acceleration, and third law of equal and opposite reaction forces. Examples are provided to illustrate friction, net force, gravitational force, and applications of Newton's three laws.
Module No. 8
1) Newton's first law of motion states that an object at rest stays at rest and an object in motion stays in motion with the same speed and in the same direction unless acted upon by an unbalanced force.
2) Newton's second law establishes the relationship between the net force acting on an object, the object's mass, and the object's acceleration. It can be expressed by the equation F=ma, where F is the net force, m is the mass, and a is the acceleration.
3) Newton's third law states that for every action, there is an equal and opposite reaction. It explains the interactions between pairs of objects.
gravitation.pptx
1. The document discusses concepts related to gravitation including Newton's universal law of gravitation, Kepler's laws of planetary motion, acceleration due to gravity, mass, weight, thrust, pressure, and equations of vertical motion.
2. Key figures discussed include Johannes Kepler, Isaac Newton, and Archimedes. Newton developed the universal law of gravitation and Kepler described three empirical laws of planetary motion.
3. The universal law of gravitation states that the gravitational force between two objects is directly proportional to the product of their masses and inversely proportional to the square of the distance between them.
Isaac newton
1) Isaac Newton was an English mathematician and physicist born in 1642 who made seminal contributions to classical mechanics, inventing calculus and formulating the laws of motion and universal gravitation.
2) Newton's three laws of motion describe the relationship between an object's mass, its motion (including changes in motion), and the applied force. His law of universal gravitation states that a force exists between any two masses and this force decreases with the square of the distance between them.
3) Newton published his work Philosophiae Naturalis Principia Mathematica in 1687, considered one of the most influential books in the history of science. It described universal gravitation and the three laws of motion, forming the
Force and laws of motion
1) Newton's first law states that an object remains at rest or in uniform motion unless acted upon by an external force.
2) Newton's second law defines force as equal to the mass of an object multiplied by its acceleration.
3) Newton's third law states that for every action there is an equal and opposite reaction between two objects interacting with one another.
Gravitation
This document discusses Sir Isaac Newton and Johannes Kepler's contributions to the understanding of gravitation. It covers Newton's universal law of gravitation, Kepler's laws of planetary motion, gravitational force, acceleration due to gravity, equations of vertical motion, mass, weight, thrust, pressure, Archimedes' principle, and density. Key points include Newton's inverse square law of gravitation, Kepler's three laws of planetary motion, how gravitational force causes objects to accelerate at 9.8 m/s2 on Earth, and how pressure depends on both force and contact area.
Force and Motion
1) Sir Isaac Newton studied motion and is best known for his laws of motion and universal law of gravitation.
2) Forces can cause objects to start or stop moving, change direction, or maintain constant motion depending on whether the net force is balanced or unbalanced.
3) Friction opposes the motion of objects in contact and depends on factors like the nature of the surfaces and the pressing force between them. It exists as both static and kinetic forms.
Module in forces and laws of motion
The document discusses Isaac Newton's three laws of motion. Newton's first law states that an object at rest stays at rest and an object in motion stays in motion unless acted upon by an unbalanced force. Newton's second law relates that the acceleration of an object is directly proportional to the net force acting on it and inversely proportional to its mass. Newton's third law states that for every action there is an equal and opposite reaction.
3gravitation-181206145827 (1).pdf
The document discusses concepts related to gravitation including:
1. Newton's universal law of gravitation which states that the gravitational force between two bodies is directly proportional to the product of their masses and inversely proportional to the square of the distance between them.
2. Kepler's laws of planetary motion which describe the motion of planets around the sun, including that planets move in elliptical orbits with the sun at one focus.
3. The acceleration due to gravity on Earth is approximately 9.8 m/s2 and causes objects with mass to have weight, defined as the gravitational force on an object.
gravitation class 9
The document discusses concepts related to gravitation including Newton's universal law of gravitation, Kepler's laws of planetary motion, acceleration due to gravity, and equations of vertical motion. Some key points covered include:
1) Newton's universal law of gravitation states that the gravitational force between two bodies is directly proportional to the product of their masses and inversely proportional to the square of the distance between them.
2) Kepler's laws describe the motion of planets and include that planets move in elliptical orbits with the sun at one focus.
3) Acceleration due to gravity on Earth is approximately 9.8 m/s2 and causes objects to experience weight. Weight depends on both mass and location.
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Microscope labeled diagram
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Newton1stnotes
Sir Isaac Newton discovered three laws of motion that describe how objects interact in the physical world. Newton's first law states that objects at rest will stay at rest and objects in motion will stay in motion unless acted on by an outside force. The document goes on to define key concepts related to Newton's laws such as inertia, balanced and unbalanced forces, different types of friction, and how friction can be overcome.
Motionnotes
This document defines and explains key concepts related to motion, including:
1) Motion involves the movement of an object from one point to another, which can be measured by distance and displacement. Distance is the length between two points, while displacement also considers direction of travel.
2) Speed, velocity, and acceleration are defined. Speed is the distance traveled over time. Velocity includes both speed and direction. Acceleration is the rate of change of velocity over time.
3) Momentum is the measure of how difficult it is to stop an object moving, calculated as the object's mass multiplied by its velocity. Mass is the amount of matter in an object, while weight depends on gravity.
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Newton2ndnotes
- 1. Newton’s 2nd law of motion: An object will accelerate in the direction of a force that acts on it. This explains gravity, because gravity is a force that acts on everything- objects will accelerate in the direction of gravity’s pull. Otherwise known as, what goes up must come down. Objects accelerate towards earth at a rate of 9.8 m/s² due to the pull of gravity. Force can be measured with this equation: F= ma in newtons (N) Newton’s are the measure of force. A Newton is equal to (1kg • m/s²) Gravity: the force that exists between any two objects with mass, it is always attractive, (It’s a very pretty force) and it pulls objects towards each other. Gravity is affected by two factors size and distance. The larger an object the more gravitational pull it has. Distance also affects
- 2. gravitational pull, the closer the object the more gravity it has. Circular motion and satellite motion: Centripetal force is the type of force that creates circular motion. Two forces working together to create circular motion. One force moving in a straight line and another force pushing downward creates curved motion. This is how satellites orbit a planet or the sun. The horizontal motion is fast enough to keep the downward force from pulling the satellite down to the large object. Air resistance is another force, when something falls towards the ground the air it travels through pushes against it. This creates an opposing force to the motion. As the object accelerates because of gravity the air resistance increases until it reaches a point where the forces are balanced. When this happens the object does not accelerate anymore. This is called terminal velocity. Center of mass is the point on the object that moves as if all the mass is concentrated at that point. When a stick or another object rotates in flight you can see where the center of mass is.
- 3. Newton’s Third Law: For every action there is an equal and opposite reaction. This means that when a force acts on an object there is a reaction that is equal in force in the other direction. Action/reaction forces don’t cancel each other out; there is always motion of some kind.