Newton's First and Second Law Review

Front

What is Newton's First Law of Motion?

Back

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 a net external force.

Front

What is Newton's Second Law of Motion?

Back

The acceleration of an object is directly proportional to the net force acting on it and inversely proportional to its mass (F = ma).

Front

What is the formula for calculating net force?

Back

Net force is calculated by summing all the forces acting on an object (F_net = F1 + F2 + ... + Fn).

Front

What does it mean when the net force is zero?

Back

When the net force is zero, the object is in equilibrium, meaning it is either at rest or moving at a constant velocity.

Front

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

Back

As mass increases, acceleration decreases for a given net force, meaning heavier objects require more force to accelerate.

Front

What is inertia?

Back

Inertia is the tendency of an object to resist changes in its state of motion.

Front

What happens to a soccer ball when a force is applied to it?

Back

The soccer ball will accelerate in the direction of the applied force.

Front

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

Back

Force is the product of mass and acceleration (F = ma), indicating that greater force results in greater acceleration for a given mass.

Front

What is an example of an object in motion that will stay in motion?

Back

A hockey puck sliding on ice will continue to slide until friction or another force stops it.

Front

What is the significance of the direction of net force?

Back

The direction of the net force determines the direction of the object's acceleration.