Flashcard: 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 an unbalanced 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 Newton's Third Law of Motion?

Back

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

Front

What is inertia?

Back

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

Front

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

Back

As mass increases, acceleration decreases for a given force.

Front

What is the role of gravity in motion?

Back

Gravity is a force that pulls objects toward the center of the Earth, affecting their velocity and direction of motion.

Front

What is an action-reaction force pair?

Back

An action-reaction force pair consists of two forces that are equal in size, opposite in direction, and act on different objects.

Front

How does a rocket move according to Newton's Third Law?

Back

A rocket moves upward as gases are expelled downward, demonstrating action-reaction forces.

Front

What happens to a coin tossed in the air?

Back

It travels upward, slows down, momentarily stops, and then falls back down due to gravity.

Front

What is the effect of air resistance on falling objects?

Back

Air resistance opposes the motion of falling objects, affecting their acceleration and terminal velocity.