Newtons Laws

Question 1

Normal force

Answer 1

The force for the component of a 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

Static friction

Answer 3

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

Question 4

Kinetic friction

Answer 4

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

Question 5

Newtons first law of motion

Answer 5

An object will remain in its state of rest or motion at a constant velocity unless a non-zero resultant force acts on.
Fnet=0N

Question 6

Newton’s second law of motion

Answer 6

When a resultant force acts on an object and object will accelerate in the direction of the force, at an acceleration directly proportional to the force and inversely proportional to the mass of the object.
Fnet=ma

Question 7

Newtons third law

Answer 7

When one object exerts a force on another object the second object exerts a force of equal magnitude in the opposite direction on the first object.

Question 8

Newtons law of universal gravitation

Answer 8

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