What is Newton's First Law of Motion?

An object will remain at rest or in uniform motion unless acted upon by an external force.

Give an example of Newton's First Law in sports.

A stationary soccer ball remains still until a player kicks it.

What is the formula for Newton's Second Law of Motion?

$F = ma$, where F is force, m is mass, and a is acceleration.

How does mass affect acceleration according to Newton's Second Law?

Heavier athletes need to generate more force to achieve the same acceleration as lighter athletes.

What does Newton's Third Law of Motion state?

For every action force, there is an equal and opposite reaction force.

Provide an example of Newton's Third Law in action.

When a swimmer pushes water backward, the water pushes the swimmer forward.

What happens when an athlete pushes against starting blocks?

The blocks provide a reaction force, creating acceleration and maintaining motion until external forces intervene.

What is impulse in physics?

Impulse (J) is the product of force and time: $J = F\Delta t = \Delta p$.

Why is the impulse-momentum relationship important in sports?

It is crucial for maximizing momentum transfer in sports like boxing or tennis.

What does the conservation of momentum state?

In a closed system, total momentum remains constant: $m_1v_1 + m_2v_2 = m_1v_1' + m_2v_2'$.

Give an example of conservation of momentum in a collision.

In a collision between two rugby players, the total momentum before and after the collision remains the same.

What is a common mistake students make regarding Newton's laws?

Students often forget that Newton's laws apply in all three dimensions.

What should you consider when analyzing sports movements using Newton's laws?

Identify all forces involved, consider their directions, remember forces occur in pairs, and account for external forces.

What is the relationship between force, mass, and acceleration?

The relationship is expressed as $F = ma$, indicating that force is the product of mass and acceleration.

How does air resistance affect a moving object according to Newton's First Law?

Air resistance can slow down a moving object, acting as an external force.

What is the significance of the starting block analysis in athletics?

It illustrates the application of Newton's laws, showing how forces and motion interact during a race.

What is the unit of impulse?

Impulse is measured in Newton-seconds (N⋅s).