laws of motion

Question 1

Force

Answer 1

A force is an action exerted on an object to change it’s state of rest or motion

Question 2

Unbalanced force

Answer 2

When forces ARE NOT equal, causing a change in motion

Question 3

Balanced force

Answer 3

When forces ARE equal, causing no change in motion

Question 4

Newton’s First Law of Motion

Answer 4

An object at rest will remain at rest unless acted upon by an unbalanced force. An object in motion will continue at a constant speed and direction unless acted upon by an unbalanced force.

Question 5

Inertia

Answer 5

Inertia is the tendency for an object to resist any change in motion

Question 6

Inertia’s relationship with mass

Answer 6

The greater the mass, the greater the inertia

Question 7

Friction

Answer 7

Friction is a force that resists the motion of one object over another

Question 8

Newton’s Second Law of Motion

Answer 8

F = m x a

Question 9

Acceleration’s relationship with mass

Answer 9

Acceleration of an object decreases with increased mass

Question 10

Kg measures..

Answer 10

Mass

Question 11

Newtons measure…

Answer 11

Force

Question 12

m/s2 measures…

Answer 12

Acceleration

Question 13

1N is equal to

Answer 13

The force required to give a mass of 1kg and an acceleration of 1m/s/s

Question 14

The acceleration due to gravity is…

Answer 14

9.8m/s/s

Question 15

Newton’s Third Law of Motion

Answer 15

For every action there is an equal and opposite reaction force

Question 16

Name the forces on an aeroplane

Answer 16

Lift (Force upwards), Weight (Force downwards), Drag (Force Right), Thrust (Force Left)