Newton's Laws & Momentum Concepts

Front

What is inertia?

Back

Inertia is the tendency of an object to resist changes in its state of motion. An object at rest stays at rest, and an object in motion continues in motion unless acted upon by an external force.

Front

What happens to a moving object when no external force acts on it?

Back

It continues to move at a constant velocity.

Front

What is momentum?

Back

Momentum is the product of an object's mass and its velocity, represented by the formula p = mv.

Front

What is the law of conservation of momentum?

Back

The total momentum of a closed system remains constant if no external forces act on it.

Front

What occurs during a collision in terms of momentum?

Back

The total momentum before the collision is equal to the total momentum after the collision.

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, 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

How does a balloon move when air is released from it?

Back

The balloon moves in the opposite direction of the expelled air due to Newton's Third Law of Motion.

Front

What is an example of inertia in everyday life?

Back

A passenger lurching forward in a car when it suddenly stops is an example of inertia.