Ch.4 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 at a constant velocity 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 is Newton's Third Law of Motion?

Back

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

Front

What is the formula to calculate weight?

Back

Weight (W) = mass (m) × acceleration due to gravity (g).

Front

What is the acceleration due to gravity on Earth?

Back

Approximately 9.81 m/s².

Front

What is a free-body diagram?

Back

A graphical representation used to visualize the forces acting on an object.

Front

What does it mean for forces to be balanced?

Back

The net force acting on an object is zero, resulting in no acceleration.

Front

What does it mean for forces to be unbalanced?

Back

The net force acting on an object is not zero, resulting in acceleration.

Front

How do you calculate net force?

Back

Net force is the vector sum of all individual forces acting on an object.

Front

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

Back

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