Newtons Laws

Question 1

Newton’s 1st Law

Answer 1

An object continues in a state of rest or uniform (moving with constant) velocity unless it is acted upon by a net or resultant force

Question 2

Inertia

Answer 2

the property of an object that causes it to resist a change in its state of rest or uniform motion

Question 3

Newton’s Second Law

Answer 3

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

Question 4

Newton’s 3rd Law

Answer 4

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

Question 5

Net Force

Answer 5

A single force that has the same effect as the original forces acting together

Question 6

Equilibrium

Answer 6

The forces acting on an object are an equilibrium if the net force is equal to zero

Question 7

Newton’s Law of universal Gravitation

Answer 7

Every particle with mass in the universe attracts every other particle with a force which is directly proportional to the product of their masses and inversely proportional to the square of the distance between their centres

Question 8

Gravitational field

Answer 8

a region in space where a mass will experience a force