P2

Question 1

Specific heat capacity definition

Answer 1

Energy needed to raise the temperature of a 1 kg substance by 1 degrees Celsius

Question 2

Specific heat capacity equation

Answer 2

Change in thermal energy = Mass (kg) X specific heat capacity (J/Kg) X change in temperature (degrees Celsius)

Question 3

Ways to insulate a building

Answer 3

Loft insulation
Double glazed windows
Thicker bricks 

Question 4

What happens to the Infrared radiation When temperature increases? 

Answer 4

Hotter = more infrared radiation

Question 5

Is infrared radiation visible

Answer 5

No

Question 6

How to test for infrared radiation

Answer 6

Beam of light with prism and thermometer

Question 7

What do greenhouse gases do to infrared radiation

Answer 7

Absorb longer wavelengths of infrared radiation from the Earth preventing it from escaping/ Re-emitting radiation to the ground resulting in eart heating

Question 8

When an object emits infrared radiation at the same rate it absorbs it its temperature is…

Answer 8

Constant

Question 9

When an object absorbs radiation faster than it admits radiation the temperature …

Answer 9

Increases