Newton's Laws

Front

What are Newton's Three Laws of Motion?

Back

1. First Law: An object at rest stays at rest, and an object in motion stays in motion unless acted upon by a net external force. 2. Second Law: The acceleration of an object is directly proportional to the net force acting on it and inversely proportional to its mass (F=ma). 3. Third Law: For every action, there is an equal and opposite reaction.

Front

What is inertia?

Back

Inertia is the property of an object to resist changes in its state of motion. The greater the mass of an object, the greater its inertia.

Front

What is net force?

Back

Net force is the vector sum of all the forces acting on an object. It determines the object's acceleration.

Front

How does mass affect acceleration?

Back

According to Newton's Second Law, an object with greater mass requires more force to achieve the same acceleration as an object with less mass.

Front

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

Back

The relationship is defined by Newton's Second Law: F = ma, where F is the net force, m is the mass, and a is the acceleration.

Front

What does a position-time graph represent?

Back

A position-time graph shows how the position of an object changes over time. A straight line indicates constant velocity.

Front

What is the significance of a horizontal line on a position-time graph?

Back

A horizontal line indicates that the object is at rest, meaning its position does not change over time.

Front

What is the significance of a sloped line on a position-time graph?

Back

A sloped line indicates that the object is moving with a constant velocity; the steeper the slope, the greater the velocity.

Front

What is the difference between action and reaction forces?

Back

Action and reaction forces are equal in magnitude and opposite in direction, as stated in Newton's Third Law.

Front

What is gravitational force?

Back

Gravitational force is the attractive force between two masses. It is one of the forces that can act on an object.