Forces and Newton's Laws of Motions

What does Hooke’s Law State?

Hooke’s Law states that for an extendable material the force applied is directly proportional to the extension, provided that the elastic limit is not met.

Proportional Limit

The point beyond which any further increase in the load applied to a spring will produce an extension that is no longer proportional to the force.

Elastic Limit

The point beyond which any further increase in the load applied to a spring will produce a permanent stretch.

Gravitational Forces

Attractive forces that exist between bodies due to their masses.

Magnetic Forces

Attractive or repulsive forces that exist between bodies due to their magnetic polarities.

Electrostatic Forces

Attractive or repulsive forces that exist between bodies due to their electric charge.

Nuclear Forces

Extremely strong attractive forces which bind together the subatomic particles of an atomic nucleus.

Elastic Forces

Restoring forces produced when a body is stretched or compressed.

Mechanical Forces

Those that exist between bodies in contact.

Newton’s First Law

An object will remain at rest, or in uniform motion in a straight line, unless acted upon by an external force. AKA Law of Inertia.

Newton’s Second Law

The force acting on an object is equal to the mass of that object multiplied by its acceleration.

Newton’s Third Law

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