Newton's Laws

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. This is often expressed as F = ma.

Front

What is Newton's Third Law of Motion?

Back

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

Front

Define inertia in the context of Newton's First Law.

Back

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

Front

What is the formula to calculate force according to Newton's Second Law?

Back

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

Front

If a net force of 10 N is applied to a 2 kg object, what is its acceleration?

Back

a = F/m = 10 N / 2 kg = 5 m/s².

Front

What is the relationship between mass and acceleration in Newton's Second Law?

Back

As mass increases, for a constant force, acceleration decreases.

Front

Explain the concept of action-reaction pairs in Newton's Third Law.

Back

Action-reaction pairs are forces that two objects exert on each other that are equal in magnitude and opposite in direction.

Front

What is the significance of the net force in Newton's Second Law?

Back

The net force determines the acceleration of an object; it is the vector sum of all forces acting on the object.

Front

How does gravity affect the motion of objects according to Newton's Laws?

Back

Gravity is a force that acts on all objects with mass, influencing their motion and acceleration.