forces and motion test

What is a force?

A push or a pull exerted on an object that can cause it to change its motion, direction, or shape.

What are the standard units for force?

The standard unit for force is the Newton (N).

Define net force.

The overall force acting on an object, which is the combination of all individual forces acting on it.

What is the difference between balanced and unbalanced forces?

• Balanced forces: Forces that are equal in magnitude and opposite in direction, resulting in a net force of zero and no change in an object's motion.
• Unbalanced forces: Forces that are not equal or not opposite in direction, resulting in a net force greater than zero and a change in an object's motion (acceleration).

State Newton's First Law of Motion (Law of Inertia).

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.

State Newton's Second Law of Motion and provide its formula.

The acceleration (a) of an object is directly proportional to the net force (F) acting on it and inversely proportional to its mass (m). The formula is F = ma, where F is in Newtons, m is in kilograms, and a is