4 - Newton's Laws | Forces Formative Flashcard

Front

What is Newton's 1st 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 2nd 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 Newton's 3rd Law of Motion?

Back

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

Front

What does it mean for forces to be balanced?

Back

Balanced forces occur when two forces acting on an object are equal in size but opposite in direction, resulting in a net force of zero.

Front

What is the net force?

Back

The net force is the vector sum of all the forces acting on an object.

Front

What happens to an object in free fall when air resistance is negligible?

Back

It accelerates downward at a constant rate due to gravity.

Front

What is inertia?

Back

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

Front

What is the relationship between mass and acceleration in Newton's 2nd Law?

Back

As mass increases, acceleration decreases for a given net force.

Front

What is the significance of a net force of zero?

Back

A net force of zero indicates that an object is either at rest or moving at a constant velocity.

Front

What is air resistance?

Back

Air resistance is a type of friction that acts against the motion of an object moving through air.