Lec 6

Question 1

How are weather stations standardized!

Answer 1

To sea lvl equivalent. Via the ideal gas law

Question 2

What is heat

Answer 2

The transfer from are object to another.

Question 3

How does wind remove heat?

Answer 3

It is effective at removing master.

Question 4

What are the units of energy?

Answer 4

Mass x velocity squared.

Question 5

What is energy? What are the 2 type?

Answer 5

A property of matter that can do work ( make things happen)
Kinetic and potential

Question 6

Kinetic energy

Answer 6

The energy of a mass in motion
1/2 mass x (velocity squared)

Question 7

How is energy measured?

Answer 7

In joules (kg/(m^2xs^2)

Question 8

Potential energy

Answer 8

E associated with an objects position ( and turn into kinetic energy)
This can be mechanical or
Chemical

Question 9

Internal energy

Answer 9

The total energy in a system (kinetic and potential)

Question 10

How is transferred from are object to another?

Answer 10

Conduction + connection

Question 11

Conduction

Answer 11

Heat transfer from one mole to the next through or between contacting objects I substances

Question 12

Which physical state conducts energy the best?

Answer 12

Solids! This is because all atoms in a solid are “connected” and always touching.
Then liquid and then gas

Question 13

How does temp gradients influence conduction rates? Chi

Answer 13

Larger diff in temps the larger conduction will occur.

Question 14

How is conduction measured?

Answer 14

Via heat flux:
Qc=-k x dT.
dT= (Change in temp) over a distance
-k = thermal conductivity coefficient (W/mK) (how well heat transfers

Question 15

How is heat transferred from the ground into the air?

Answer 15

Via conduction - at the laminar layer

Question 16

What is convection

Answer 16

The transfer of energy through the movement of liquids and gases

Question 17

What are the types of convection

Answer 17

Thermal or mechanical
Thermal is based on density of medium
Mechanical is based en movement

Question 18

What is the heat flux equation for convection

Answer 18

Q (H)= -k x dT
dT= temp change btwn 2 pts
-K= Eddy diffusivity (E transfer via mixing motion)

Question 19

Where does convection primarily accuse?

Answer 19

In the atmosphere.
Large contributor to storm cloud formation

Question 20

What is sensible heat?

Answer 20

E transfer that can be measured with a thermometer (measurable heat change of an object)

Question 21

What is specific heat

Answer 21

Amount of energy (heat) required to raise the temp of 1 kg of a substance by 1° k

Question 22

What is latent heat?

Answer 22

The heat associated with phase change.
Not measurable by a thermometer

Question 23

Does melting or evaporation require or release heat?

Answer 23

Requires

Question 24

Does freezing or condensing require or release heat?

Answer 24

Releases