Chapter 2 Laws of Motion

Front

What is the Law of Inertia?

Back

The Law of Inertia states that an object at rest will remain at rest, and an object in motion will continue in motion with the same speed and in the same direction unless acted upon by a net external force.

Front

What does Newton's 3rd Law state?

Back

Newton's 3rd Law states that for every action, there is an equal and opposite reaction.

Front

Define inertia.

Back

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

Front

What factors determine the momentum of an object?

Back

The momentum of an object depends on its mass and velocity.

Front

What is net force?

Back

Net force is the combination of all the forces acting on an object.

Front

What is Newton's 1st Law?

Back

Newton's 1st Law states that an object will remain at rest or in uniform motion unless acted upon by a net external force.

Front

What is Newton's 2nd Law?

Back

Newton's 2nd Law states that 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 relationship between mass and acceleration according to Newton's 2nd Law?

Back

According to Newton's 2nd Law, as mass increases, acceleration decreases if the net force remains constant.

Front

What is the formula for calculating momentum?

Back

The formula for calculating momentum (p) is p = mass (m) × velocity (v).

Front

What is the difference between action force and reaction force?

Back

Action force is the initial force exerted by one object on another, while reaction force is the force exerted by the second object back on the first, equal in magnitude and opposite in direction.