P2

Question 1

Conduction

Answer 1

Conduction is the process where vibrating particles transfer energy to neighbouring particles

Question 2

Thermal conductivity

Answer 2

Thermal conductivity of a metal refers to the rate at which it transfers heat energy

Question 3

Insolation

Answer 3

Insolation is to reduce the amount of energy transfer across a material.

Question 4

Infared Radiation - Energy from the Sun

Answer 4

Infared radiation and visible light are apart of the Electomagnetic Spectrum.

The sun emmites all types of electomagnetic radiation. Fortunatelly, the Earths atmosphere blocks most types.

Question 5

Radiation and Surface Temperature

Answer 5

The higher the temperature of an object, the more infered radiation it emitts in a given time.

An object that has a constant temperature emits radiation across a continuous range of wavelengths.

Question 6

What is Secific Heat Capacity

Answer 6

The Specific Heat of a substance is the energy needed to rais the temperature of 1Kg of a substance by ! degrees centigrade.

Question 7

Specific Heat Capacity equation

Answer 7

enrgy transfered = mass x secific heat capacity x temperature change