The Basics

Question 1

What unit is mass measured in?

Answer 1

Kilograms (kg)

Question 2

What unit is force measured in?

Answer 2

Newtons (N) a force that accelerates 1kg at 1m/sec2

Question 3

What unit is time measured in?

Answer 3

Seconds (s)

Question 4

What unit is distance measured in?

Answer 4

Metres (m)

Question 5

What unit is area measured in?

Answer 5

Metres squared (m2)

Question 6

What unit is velocity measured in?

Answer 6

Metres per seconds (m/sec)

Question 7

What unit is acceleration measured in?

Answer 7

Metres per second per second (m/sec2)

Question 8

What unit is temperature measured in?

Answer 8

Kelvin (K)

Question 9

What unit is pressure measured in?

Answer 9

Pascals (Pa) a pressure of 1N/m2

Question 10

What unit is density measured in?

Answer 10

Kilograms per cubic metre (kg/m3)

Question 11

What unit is energy measured in?

Answer 11

Joules (J)

Question 12

What unit is power measured in?

Answer 12

Watts (W)

Question 13

What is the equation for Lift?

Answer 13

Lift=Cl 1/2 p V2 S

Lift (Newtons) = Co-efficient of lift x 0.5 x Density (kg/m2) x Velocity Squared (m/sec2) x Surface Area (m2)

Question 14

Convert KG to Newtons

Answer 14

KG x 9.81

Question 15

Convert g/m3 to kg/m3

Answer 15

g/m3 ÷ 1000

Question 16

Convert kts to m/sec

Answer 16

kts x 0.514

Question 17

What is the relationship with Density, Pressure, Temperature and Humidity?

Answer 17

Density varies directly with Pressure

Density varies indirectly with both Temperature and Humidity

Hierarchy for influencing Density is = Pressure, Temperature, Humidity