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Describe Newton's Third Law of Motion with examples.
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Newton's Third Law states that for every action, there is an equal and opposite reaction. Examples include a ball rebounding off a wall and a boat moving in the opposite direction when someone jumps off it.
Define the principle of conservation of momentum.
The principle of conservation of momentum states that the total momentum of a system of objects remains constant, provided no external forces act on it.
Summarize Newton's First Law of Motion.
Newton's First Law, or the Law of Inertia, states that an object at rest stays at rest and an object in uniform motion continues in uniform motion unless acted upon by an external unbalanced force.
State Newton's Second Law of Motion and its formula.
Newton's Second Law states that the force required for the motion of an object depends on its mass and velocity. The formula is F = m * a.
Explain the concept of momentum and provide its formula.
Momentum is the product of an object's mass and velocity, represented by p = m * v.
What is the relationship between force and the rate of change of momentum?
Force is proportional to the rate of change of momentum. This relationship is expressed in Newton's Second Law of Motion.
What is inertia and how is it related to mass?
Inertia is the tendency of an object to resist changes in its state of motion. Mass is a measure of an object's inertia - the more massive an object, the greater its inertia.
Differentiate between balanced and unbalanced forces.
Balanced forces have a net force of zero, resulting in no movement of the object. Unbalanced forces have a net force that is not zero, causing the object to move.
What are contact forces? Provide examples.
Contact forces require physical interaction between objects. Examples include muscular force (force exerted by muscles) and frictional force (force that opposes motion).
List and describe the types of non-contact forces.
Non-contact forces include: 1. Gravitational Force: Attraction between masses 2. Magnetic Force: Attraction or repulsion between magnets 3. Electrostatic Force: Force between charged objects
How is acceleration related to force when mass is constant?
When mass is constant, acceleration is directly proportional to force. This is represented by the equation F = m * a.
Why can't force be directly seen or felt?
Force itself cannot be directly seen, felt, or experienced, but its effects—such as changes in motion or shape—can be observed.
State the SI unit of force and its formula.
The SI unit of force is Newton (N). The formula for force is F = m * a, where F is force, m is mass, and a is acceleration.
What are some daily life examples of Newton's Third Law?
Daily life examples of Newton's Third Law include a swimmer pushing against water to move forward, and a rocket launching by expelling gas downwards.
Define force and its effects on objects.
Force is a push or pull acting on an object. It can cause an object at rest to start moving, stop a moving object, change the speed of an object, alter the direction of an object, or change the dimensions of an object.
Provide the formula for the conservation of momentum during collisions.
The formula for conservation of momentum during collisions is m₁u₁ + m₂u₂ = m₁v₁ + m₂v₂, where m and u represent mass and initial velocity, and v represents final velocity.
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