Newton's Laws

Question 1

Weight (Fg)

Answer 1

The gravitational force the Earth exerts on any object on or near its surface

Question 2

Normal force (Fn)

Answer 2

The perpendicular force exerted by a surface on an object in contact with it

Question 3

Frictional force

Answer 3

The force that opposes the motion of an object and acts parallel to the surface the object is in contact with

Question 4

Newton’s First Law

Answer 4

An object continues in a state of rest or uniform velocity unless acted upon by a net or resultant force

Question 5

Newton’s Second Law

Answer 5

When a net force is applied to an object of mass, it accelerates in the direction of the net force. The acceleration is directly proportional to the magnitude of the net force and inversely proportional to the mass of the object.

Question 6

Newton’s Third Law

Answer 6

When object A exerts a force on object B, object B simultaneously exerts a force on object A that is equal,in magnitude and opposite in direction