Newton's First and Second Law

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 (F = ma).

Front

What are balanced forces?

Back

Forces that are equal in size and opposite in direction, resulting in a net force of zero.

Front

What are unbalanced forces?

Back

Forces that are not equal and opposite, resulting in a net force that causes an object to accelerate.

Front

What is friction?

Back

A force that opposes the motion of an object, acting in the opposite direction of the object's movement.

Front

What is the formula for calculating speed?

Back

Speed is calculated as distance traveled divided by time (Speed = Distance / Time).

Front

What is the effect of friction on a moving object?

Back

Friction can slow down or stop a moving object.

Front

What is inertia?

Back

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, for a given force, the acceleration of the object decreases.

Front

What is the relationship between force, mass, and acceleration?

Back

Force equals mass times acceleration (F = ma).