M8.1- Physics Of The Atmosphere

Question 1

What is the equation for speed?

Answer 1

Speed= Distance/Time

Question 2

What is the equation for acceleration?

Answer 2

A= Change in speed/ Time taken

Question 3

Gravity equals what (meters per second squared)

Answer 3

9.8 meters per second squared

Question 4

Equation for work?

Answer 4

Force multiplied by Distance
(N x m)

Question 5

Work is denoted by what value?

Answer 5

Joules

Question 6

Percentages of gas in the atmosphere?

Answer 6

Nitrogen 78%
Oxygen 21%
Other gases 1%

Question 7

5 main regions of atmosphere?

Answer 7

Troposphere
Stratosphere
Mesosphere
Thermosphere
Exosphere

Question 8

Troposphere is between what earth surface to where?

Answer 8

8-14.5 km high

Question 9

What layer of atmosphere is weather found in?

Answer 9

Troposphere

Question 10

What is the tropopause?

Answer 10

The boundary between troposphere and stratosphere
17km above equator
9km above polar regions

Question 11

Where does stratosphere start and where does it extend to?

Answer 11

Starts above troposphere and extends 50km high

Question 12

What section of atmosphere would aircraft cruise in?

Answer 12

Stratosphere

Question 13

Tropopause can be described as what sort of layer?

Answer 13

Isothermal layer-constant temperatures throughout

Question 14

The stratosphere contains what protective layer?

Answer 14

Protective ozone layer

Question 15

Temperature is around what at stratosphere?

Answer 15

-56.5 degrees Celsius

Question 16

What is pressure at sea level?

Answer 16

1013.25 hPa
14.7 PSI

Question 17

Temperature at sea level?

Answer 17

15 degrees Celsius

Question 18

Density of air at sea level?

Answer 18

1.225 kg/m cubed

Question 19

As altitude increases what decreases?

Answer 19

Pressure
Density
Temperature

Question 20

ISA values at sea level?

Answer 20

Pressure 1013.25 hPa
Density 1.225 kg/m cubed
Temperature 288.15 K or 15 degrees Celsius

Question 21

Temperature decreases with altitude at rate of what?

Answer 21

6.5 degrees Celsius per Km

Question 22

What is the value of speed of sound?

Answer 22

339.4

Question 23

Power is measured in what?

Answer 23

Watts
Newton meters per second

Question 24

Speed of sound is what at higher altitudes due to what?

Answer 24

Lower due to lower temperatures