Ch 2 sum: Newtons Laws

Normal force

Static friction

A box sliding across the floor

<p>Gravity</p> Signup and view all the answers

<p>Kinetic friction</p> Signup and view all the answers

<p>To prevent objects from passing through solid surfaces</p> Signup and view all the answers

<p>F = G\frac{m_1m_2}{d^2}</p> Signup and view all the answers

<p>All objects fall towards Earth with the same acceleration.</p> Signup and view all the answers

<p>The amount of matter in the object.</p> Signup and view all the answers

<p>Mass remains constant, but weight varies.</p> Signup and view all the answers

<p>It stabilizes Earth's tilt.</p> Signup and view all the answers

<p>It shapes the structure and dynamics of the universe.</p> Signup and view all the answers

<p>F = ma</p> Signup and view all the answers

<p>Object B exerts a force on object A of equal magnitude and opposite direction</p> Signup and view all the answers

<p>A rocket lifts off by expelling exhaust gases downward</p> Signup and view all the answers

<p>Orbits of planets and satellites, weather patterns, and climate change effects</p> Signup and view all the answers

<p>It signifies balanced forces with no net force acting on the object</p> Signup and view all the answers

<p>It is always attractive and acts over large distances</p> Signup and view all the answers

<p>Decreases with the inverse square of distance</p> Signup and view all the answers

<p>Rocket launching into space</p> Signup and view all the answers

<p>By providing fundamental understanding in physics, engineering, and other sciences</p> Signup and view all the answers

<p>The rocket's mass decreases, leading to increased acceleration with constant thrust</p> Signup and view all the answers

<p>To support the swing and the person sitting on it</p> Signup and view all the answers

<p>To reinforce theoretical concepts with tangible evidence</p> Signup and view all the answers

<p>To understand the forces at play, especially in scenarios like objects sliding down a slope</p> Signup and view all the answers

<p>To calculate the resultant force on an object with multiple forces</p> Signup and view all the answers

<p>Objects never change their state of motion</p> Signup and view all the answers

<p>Inertia causes objects to resist changes in their state of motion</p> Signup and view all the answers

<p>It stays at rest unless acted upon by an external unbalanced force</p> Signup and view all the answers

<p>'Objects in motion tend to stay in motion'</p> Signup and view all the answers

<p>'Law of Inertia'</p> Signup and view all the answers

<p>'Newton's First Law'</p> Signup and view all the answers

<p>To exert a perpendicular force against the object</p> Signup and view all the answers

<p>Static friction</p> Signup and view all the answers

<p>On moving objects</p> Signup and view all the answers

<p>$F = Grac{m_1m_2}{d^2}$</p> Signup and view all the answers

<p>Due to gravity imparting the same acceleration to all objects</p> Signup and view all the answers

<p>Due to differing gravitational field strengths</p> Signup and view all the answers

<p>It stabilizes Earth's axis tilt</p> Signup and view all the answers

<p>Mass reflects quantity of matter, weight is the force due to gravity</p> Signup and view all the answers

<p>To maintain planet orbits</p> Signup and view all the answers

<p>Because it holds celestial bodies together</p> Signup and view all the answers

<p>It imparts the same acceleration regardless of mass</p> Signup and view all the answers

<p>'Lens of Newton's laws'</p> Signup and view all the answers

<p>The net force acting on it</p> Signup and view all the answers

<p>A rocket launching into space</p> Signup and view all the answers

<p>It is inversely proportional to the square of the distance between masses</p> Signup and view all the answers

<p>Due to a decrease in mass even if the thrust remains constant</p> Signup and view all the answers

<p>The net force acting on it</p> Signup and view all the answers

<p>Object B exerts an equal and opposite force on A</p> Signup and view all the answers

<p>Every mass attracts every other mass with a force proportional to their distance</p> Signup and view all the answers

<p>The resistance of objects to any change in their state of motion</p> Signup and view all the answers

<p>To understand the actual forces at play in scenarios like sliding down a slope</p> Signup and view all the answers

<p>Theoretical concepts with tangible evidence</p> Signup and view all the answers

<p>To maintain stability and function</p> Signup and view all the answers

<p>By describing the relationship between a body and the forces acting upon it</p> Signup and view all the answers

<p>Inertia causes objects to resist changes to their state of motion</p> Signup and view all the answers

<p>To determine the net force on an object</p> Signup and view all the answers

<p>To oppose the downward pull of gravity</p> Signup and view all the answers

<p>Static Friction</p> Signup and view all the answers

<p>Static friction opposes the start of motion, while kinetic friction opposes motion itself.</p> Signup and view all the answers

<p>Resisting the start of motion</p> Signup and view all the answers

<p>To increase energy efficiency</p> Signup and view all the answers

<p>By counteracting the downward pull of gravity</p> Signup and view all the answers

<p>$F = G\frac{m_1m_2}{d}$</p> Signup and view all the answers

<p>All objects accelerate with the same rate.</p> Signup and view all the answers

<p>Mass changes with gravitational field strength.</p> Signup and view all the answers

<p>By causing variations in Earth's tilt</p> Signup and view all the answers

<p>Universality of gravity</p> Signup and view all the answers

<p>To understand variations in Earth's gravitational field</p> Signup and view all the answers

<p>To simplify calculations</p> Signup and view all the answers

<p>To support against gravity</p> Signup and view all the answers

<p>To determine resultant forces accurately</p> Signup and view all the answers

<p>Due to external unbalanced force</p> Signup and view all the answers

<p>Resistance to change in motion state</p> Signup and view all the answers

<p>Friction opposes normal force</p> Signup and view all the answers

<p>Due to absence of external forces</p> Signup and view all the answers

<p>By establishing a relationship between normal force and frictional force</p> Signup and view all the answers

<p>To predict behavior of objects in motion and at rest</p> Signup and view all the answers

<p>Acceleration is directly proportional to mass</p> Signup and view all the answers

<p>The car has a higher mass than a skateboard</p> Signup and view all the answers

<p>Acceleration increases as mass decreases</p> Signup and view all the answers

<p>Newton's Third Law</p> Signup and view all the answers

<p>Force acting on a different object</p> Signup and view all the answers

<p>Designing vehicles and structures</p> Signup and view all the answers

<p>Equilibrium</p> Signup and view all the answers

<p>Inversely proportional to squared distance between masses</p> Signup and view all the answers

<p>Motion and forces</p> Signup and view all the answers

<p>Balanced forces on an object</p> Signup and view all the answers

<p>Counteracting other forces like gravity</p> Signup and view all the answers

<p>Kinetic Friction</p> Signup and view all the answers

<p>Starting to move</p> Signup and view all the answers

<p>Kinetic friction dissipates energy as heat</p> Signup and view all the answers

<p>The object would pass through the surface</p> Signup and view all the answers

<p>Frictional Force</p> Signup and view all the answers

<p>Proportionality constant</p> Signup and view all the answers

<p>Gravitational force between the Earth and Moon</p> Signup and view all the answers

<p>Uniform acceleration in free fall</p> Signup and view all the answers

<p>To address variations due to gravitational strength</p> Signup and view all the answers

<p>By providing a counterforce to external influences</p> Signup and view all the answers

<p>Guiding the orbits of celestial bodies</p> Signup and view all the answers

<p>'Mass' determines an object's weight.</p> Signup and view all the answers

<p>It influences planetary orbits.</p> Signup and view all the answers

<p>Mass remains constant regardless of location.</p> Signup and view all the answers

<p>Resulting in all objects falling towards Earth at the same rate.</p> Signup and view all the answers

<p>Counteracting gravitational force</p> Signup and view all the answers

<p>Newton's First Law</p> Signup and view all the answers

<p>To understand different force contributions</p> Signup and view all the answers

<p>Resistance to changes in motion</p> Signup and view all the answers

<p>To understand how forces interact</p> Signup and view all the answers

<p>Indefinite motion in the same speed and direction</p> Signup and view all the answers

<p>To identify unbalanced forces</p> Signup and view all the answers

<p>Providing resistance to motion</p> Signup and view all the answers

<p>Understanding actual forces at play</p> Signup and view all the answers

<p>Observing correlation with normal force</p> Signup and view all the answers

<p>Mass</p> Signup and view all the answers

<p>Forces come in pairs</p> Signup and view all the answers

<p>It is inversely proportional to the product of the masses</p> Signup and view all the answers

<p>Upward force</p> Signup and view all the answers

<p>To balance all forces acting on an object</p> Signup and view all the answers

<p>An object accelerating due to an unbalanced force</p> Signup and view all the answers

<p>It acts at a distance</p> Signup and view all the answers

<p>Opposing the force of gravity</p> Signup and view all the answers

<p>Pushing a heavy box that doesn't move initially</p> Signup and view all the answers

<p>Resisting an object's intended motion</p> Signup and view all the answers

<p>Balancing gravitational force</p> Signup and view all the answers

<p>State of motion of the object</p> Signup and view all the answers

<p>Preventing vertical acceleration</p> Signup and view all the answers

<p>9.8 m/s^2</p> Signup and view all the answers

<p>By stabilizing Earth's tilt, leading to consistent seasonal cycles</p> Signup and view all the answers

<p>Weight changes with location due to gravity, but mass remains the same.</p> Signup and view all the answers

<p>That all objects experience the same acceleration towards Earth</p> Signup and view all the answers

<p>It stabilizes Earth's tilt and affects seasonal cycles.</p> Signup and view all the answers

<p>By maintaining a constant force regardless of distance</p> Signup and view all the answers

<p>Acceleration is directly proportional to net force.</p> Signup and view all the answers

<p>Forces are equal in magnitude, opposite in direction, and act on different objects.</p> Signup and view all the answers

<p>To ensure no net force acts on an object.</p> Signup and view all the answers

<p>It is directly proportional to the product of the masses involved.</p> Signup and view all the answers

<p>By counteracting uneven gravitational forces from other celestial bodies.</p> Signup and view all the answers

<p>It is always attractive and acts over vast distances.</p> Signup and view all the answers

<p>Due to the absence of air resistance in space.</p> Signup and view all the answers

<p>The behavior of celestial bodies under mutual attraction</p> Signup and view all the answers

<p>The amount of matter it contains</p> Signup and view all the answers

<p>They provide a unified framework for understanding forces and motion</p> Signup and view all the answers

<p>Law of Inertia</p> Signup and view all the answers

<p>Analyze forces at play</p> Signup and view all the answers

<p>Passengers lurching forward when a car suddenly stops</p> Signup and view all the answers

<p>Lack of external unbalanced forces in space</p> Signup and view all the answers

<p>Relationship between Normal Force and Friction</p> Signup and view all the answers

<p>Drawing force diagrams or free-body diagrams</p> Signup and view all the answers

<p>'Inertia' Principle</p> Signup and view all the answers

<p>To transmit force through ropes or wires</p> Signup and view all the answers

<p>'To provide tangible evidence for theoretical concepts'</p> Signup and view all the answers

<p>'Calculating net force on objects'</p> Signup and view all the answers

<p>To prevent an object from moving</p> Signup and view all the answers

<p>It counteracts gravity's pull</p> Signup and view all the answers

<p>Kinetic friction</p> Signup and view all the answers

<p>To dissipate energy</p> Signup and view all the answers

<p>Direction of motion</p> Signup and view all the answers

<p>To initiate movement</p> Signup and view all the answers

<p>Due to the presence of an opposing force</p> Signup and view all the answers

<p>Directly proportional to each other</p> Signup and view all the answers

<p>Exerts an equal force on object A</p> Signup and view all the answers

<p>Equal in magnitude and opposite in direction</p> Signup and view all the answers

<p>By helping design structures and predict weather patterns</p> Signup and view all the answers

<p>Newton's Third Law</p> Signup and view all the answers

<p>It is inversely proportional to the gravitational force</p> Signup and view all the answers

<p>As a result of the car's large inertia</p> Signup and view all the answers

<p>The attractive force between masses</p> Signup and view all the answers

<p>All forces acting on it are balanced resulting in no net force</p> Signup and view all the answers

<p>To bind and influence motions of celestial bodies</p> Signup and view all the answers

<p>Determining the net force on an object</p> Signup and view all the answers

<p>In supporting playground equipment and architectural structures</p> Signup and view all the answers

<p>Due to an increase in inertia</p> Signup and view all the answers

<p>Newton's First Law</p> Signup and view all the answers

<p>Direct relationship between normal force and frictional force</p> Signup and view all the answers

<p>Into components parallel and perpendicular to gravity</p> Signup and view all the answers

<p>To understand the actual forces influencing motion</p> Signup and view all the answers

<p>$F = G\frac{m_1m_2}{d}$</p> Signup and view all the answers

<p>9.8 m/s^2</p> Signup and view all the answers

<p>Due to the varying strength of gravitational pull at different locations</p> Signup and view all the answers

<p>By exerting a torque on Earth</p> Signup and view all the answers

<p>Weight changes with location, mass remains constant</p> Signup and view all the answers

<p>Tension influences the stability of structures</p> Signup and view all the answers

<p>'g', the acceleration due to gravity</p> Signup and view all the answers

<p>To maintain equilibrium in objects</p> Signup and view all the answers

<p>By generating gravitational attraction</p> Signup and view all the answers