Maths applied

Question 1

Refinements for projectile motion (other than air resistance)

Answer 1

-Consider wind effects
-Consider spin of ball
-Use more accurate value of g
-Not model the ball as a particle

Question 2

LDS - units for temperature

Answer 2

°C

Question 3

LDS - units for rainfall

Answer 3

mm

Question 4

LDS - units for mean windspeed, maximum gust

Answer 4

-knots (1kn = 1.15mph)
-Beaufort scale

Question 5

LDS - units for mean wind direction, maximum gust direction

Answer 5

-bearing (°)
-cardinal direction

Question 6

LDS - units for daily total sunshine

Answer 6

-hours

Question 7

LDS - units for daily maximum relative humidity

Answer 7

-%
-% > 95 means mist/fog

Question 8

LDS - units for daily mean total cloud

Answer 8

-oktas (eighths); 0-8 (inclusive

Question 9

LDS - units for daily mean visibility

Answer 9

-Dm (decametres)
-1 Dm = 10m

Question 10

LDS - n/a

Answer 10

Data not available

Question 11

LDS - trace

Answer 11

0 < rainfall < 0.05mm

Question 12

LDS - Beaufort scale

Answer 12

-Discrete scale of 13 values
- 0 means calm (< 1kn)
-12 means hurricane (64kn+)

Question 13

LDS - cardinal directions

Answer 13

-N, NNE, NE, ENE, E etc.
-16 possibilities

Question 14

LDS - oktas

Answer 14

-eighths of sky covered by cloud
-discrete, scale of 9 values
-0 means clear sky
-8 means completely overcast

Question 15

LDS - Perth

Answer 15

-In Australia, southern hemisphere, so July-September is winter

Question 16

LDS - UK weather stations

Answer 16

-Camborne, Hurn, Heathrow, Leeming, Leuchars