Weather

Question 1

What is weather

Answer 1

The day to day conditions of the atmosphere in a specific place

Question 2

What is climate

Answer 2

The average weather conditions over a long period of time in a region

Question 3

Give 3 weather recording instruments

Answer 3

Rain Gauge
Minimum - Maximum thermometer
Wet/Dry Bulb thermometer

Question 4

What is a rain gauge

Answer 4

Must be used in open space

Any snow or frost must be melted first

Recordings should be totalled to give monthly and annual rainfalls

It measures all forms of precipitation

Question 5

What is a maximum/minimum thermometer

Answer 5

Used to measure the warmest and coldest temperatures of the day

The air temperature can also be read form it at any time

Often uses Mercury to gauge the instruments

Is reset by shaking

Question 6

What is a wet/dry bulb thermometer

Answer 6

The reading is given as a percentage

One bulb is an ordinary thermometer giving the air temperature

The bulb of the other thermometer has a fine muslin cloth wrapped around it

It measures humidity

Question 7

Give some requirements for a Stevenson screen

Answer 7

1.2m above ground so it doesn’t receive heat released from the ground

Screen has a roof to protect the instruments

Door of the screen should always face away from the sun

Slats to allow air to circulate freely

Question 8

How do you calculate the humidity from a wet and dry bulb thermometer

Answer 8

Dry bulb - Wet bulb = …%

Question 9

What do digital weather recording instruments do

Answer 9

Transmit data to computers

Others are hand held with a screen to show recordings

Question 10

Give an example of a digital weather recording instrument

Answer 10

Hygrometer

Maximum minimum thermometers

Question 11

What are isoline maps

Answer 11

Lines drawn to link different places that share a common value. ‘Iso’ means equal, so a isoline must be a line joining equal points together

Question 12

What are Isophytes

Answer 12

Lines joining places with the same rainfall

Question 13

What are isotherms

Answer 13

Lines joining places with the same temperatures

Question 14

What are Isobars

Answer 14

Lines joining places with the same pressure

Question 15

What are the 3 types of cloud

Answer 15

Stratus
Cumulus
Cirrus

Question 16

Describe stratus clouds

Answer 16

Where there is little vertical uplift, but the uplift is over a wide area, clouds form in layers and are known as Statuses

Sheet like

Question 17

Describe Cumulus clouds

Answer 17

More vertical but localised uplift results in heaped Cumulus clouds with flat bases and globular upper surfaces.
Usually a flat bottom and a cauliflower like top

Globby

Question 18

Describe Cirrus clouds

Answer 18

Where condensation occurs at very high levels, whips cirrus clouds are formed 9made form ice crystals)

Feather like

Question 19

How is cloud cover measured

Answer 19

measured in oktas (eighths)
Estimated by sight
Sky is divided into 8, how much of the sky is covered is the measurement given in oktas

Question 20

How do clouds form

Answer 20

Sun heats water up,rises away from the surface

Calls down and starts sticking to microscopic dust particles all sticking together to forma cloud

Clouds start to fall to Earth very slowly, but warm air pushes them back up faster than it can fall

As they rise more droplets join until they are heavy enough to fall faster than the hot air is pushing them up

Rain, snow, sleet or hail