Newton's Laws

Question 1

Normal Force

Answer 1

The force which a surface exerts on an object with which it is in contact, and which is perpendicular to the surface

Question 2

Frictional Force

Answer 2

The force that opposes the motion of an object which acts parallel to the surface

Question 3

Kinetic Frictional Force

Answer 3

The force that opposes the motion of a moving object relative to a surface

Question 4

Static Frictional Force

Answer 4

The force that opposes the tendency of motion of a stationary object relative to a surface

Question 5

Newtons first Law of Motion

Answer 5

An object will continue in its state of rest or uniform velocity unless acted upon by a non-zero resultant/net force

Question 6

Newtons Second Law of Motion

Answer 6

When a non-zero net force acts upon an object, the object will accelerate in the direction of the force, the acceleration is directly proportional to the force and inversely proportional to the mass of the object

Question 7

Newtons Third Law of Motion

Answer 7

When object A exerts a force on object B, object B simultaneously exerts an oppositely directed force of equal magnitude on object A

Question 8

Newtons Law of Universal Gravitation

Answer 8

Each body in the universe attracts every other body with a force that is directly proportional to the product of their masses and inversely proportional to the square of the distance between their centers

Question 9

Weight

Answer 9

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