SP3k Radiation and Temperature

Question 1

Describe the relationship between intensity and temperature.

Answer 1

intensity of radiation emitted by an object increases as its temperature increases. The higher the temperature, the greater the intensity.

Question 2

Describe the relationship between wavelength and temperature.

Answer 2

the higher the temperature, the shorter the wavelength.

Question 3

What must a system do to stay at a constant temperature?

Answer 3

it must absorb the same power as it radiates.

Question 4

Explain why Earth and the atmosphere is getting warmer.

Answer 4

.power from the sun is absorbed by the Earth and the atmosphere
.extra greenhouse gases absorb some energy, increasing temperature
.Earth and the atmosphere radiate less power than they receive
.the Earth is warmer

Question 5

Explain why the Earth and the atomosphere are at a new constant temperature.

Answer 5

.power from the sun is absorbed by the Earth and the atmosphere
.extra greenhouse gases absorb some energy
.Earth and the atmosphere radiate the same power as they receive
.the Earths new constant temperature is higher than it used to be